TECHNICAL-OPERATIONAL DOCUMENTATION

FIRE SAFETY VALVES type V370 and RK370

MANUFACTURER: FRAPOL Spółka z o.o. 30-832 Kraków, ul. Mierzeja Wiślana 8 Phone: (012) 653-27-66, 653-27-67, 653-26-92 fax (012) 653-27-89

MARCH 2013

List of contents

1. INTRODUCTION .......................................................................................................................... 3

2. GENERAL CHARACTERISTICS .............................................................................................. 3

3. VERSIONS .................................................................................................................................... 4

4. PRINCIPLES FOR INSTALLATION OF FIRE VALVES ....................................................... 6

5. PRINCIPLES FOR FIRE VALVES MAINTENANCE ............................................................ 16

6. PERIODICAL MAINTENANCE ................................................................................................ 18

7. LIST OF SPARE PARTS .......................................................................................................... 19

8. TECHNICAL DATA OF ACTUATORS AND SOLENOIDS ................................................. 19

9. FIRE VALVE INSPECTION DOCUMENT .............................................................................. 20

1. INTRODUCTION

Rectangular V370 and round RK 370 fire safety valves with fire resistance class EI 120 (ve i� o) S are

manufactured by FRAPOL Sp. z o.o. in Krakow and are intended for use in the construction industry

as elements closing ventilation ducts during the fire within vertical fire barrier to prevent permeation of

hot gases and fire smokes via this way to zones not covered by the fire.

The fire safety valves feature:

EC Certificate of Conformity No. 1488-CPD-0352/W

EC Certificate of Conformity No. 1488-CPD-0353/W

Issued by: Building Research Institute

00-950 Warszawa, ul. Filtrowa 1

For conformity with harmonised European standard:

PN-EN 15650:2010 “Ventilation for buildings. Fire dampers”

They also feature:

Hygienic Attestation HK/B/1539/01/2012

issued by: National Institute of Public Health – National Institute of Hygiene

00-791 Warszawa, ul. Chocimska 24

2. GENERAL CHARACTERISTICS

V370 and RK370 fire valves comprise a two-part steel body (casing), which is rectangular in the case

of V370 and round in the case of RK370, cut-off partition of PROMATECT boards, placed at the joint

of both parts of the body, elements distancing (insulating) both parts of the body, and additional

securing elements carrying out the fundamental task of stopping the air flow in the event of fire,

namely: elements retaining and setting the mobile partition in the open or closed position (lever-spring

mechanism or a BELIMO actuator), thermal trigger (mechanical or electrical thermal element). Valves

can be furnished with a thermal trigger adjusted to actuation at the temperatures of 72±5°C or 90±5°C.

For V370 valves, both parts of the body are terminated on both sides with flanges with the height of 30

mm, made as a whole with the body, by bending a part of body plate at the straight angle, while in the

case of RK370 valves, this is a muff connection. Valve partition drive is located outside its rotating

shaft. The valve is basically placed in the fire barrier (wall or ceiling). In the case of a different flap

situation against the fire barrier, continuity of fire resistance must be preserved at the section from the

fire barrier to the surface crossing the valve, as marked on the assembly diagrams. V370 valves are

manufactured in variants HO; HE; MR and ER. Valve sizes are made of combination of sizes BxH for:

B = 150; 200; 250; 300; 350; 400; 450; 500; 560; 630; 750; 800; 900; 1000;

1100; 1200, 1250, 1300, 1400 and 1500 mm H = 200; 250; 300; 350; 400; 450; 500; 600; 700,

800, 900 and 1000 mm. On special request, valves can also be made with intermediate B and H

dimensions. In the event where the width of the valve (dimension B) is greater than 1500mm, or the

height of the valve (dimension H) is greater than 1000 mm, the valve with the required dimension is

made as a battery of valves, comprising standard valves. The length of rectangular valves amounts to

370 mm regardless of their size.

RK370 valves are manufactured in variants HO; HE; MR and ER. Sizes of such valves are 400; 500;

560 and 630 mm. Total length of RK370 valves amounts to 370 mm.

3. VERSIONS

Depending on the type of the applied element that keeps the valve’s partition in the open position, as

well as furnishing, there are the following versions of the fire safety valves:

3.1. HO version – with lever-spring mechanism, opened manually.

Opening of the valve occurs by turning the manual lever, during which the return spring is stretched.

The cut-off partition of the valve is kept open by the band, manual lever and release element

suspended on the peg of the mechanical thermal element. Closure of the cut-off valve can occur as a

result of:

- automatically due to increase in the temperature of the flowing air to the temperature where the

heat-responsive device of the thermal trigger breaks (gets unsoldered (standard 72±5°C).

- Manually as a result of release of manual lever from the trigger – this allows for periodical

closure of the partition to control valve operation.

The operation of the thermal trigger (mechanical heat-responsive device) involves air stream flowing

round the thermal element (glass ball or soldered metal plates) causes heating of the liquid inside the

ball (or solder), which causes breaking of the glass cover (or dissolution of solder), and as a

consequence the valve closes when the air flowing through the installation achieves the temperature

of ~72°C.

V370/HO RK370/HO

The actuation of the heat-responsive device releases the peg of the mechanical thermal element

based on it, and the latter, by moving backwards, triggers the element blocking the partition of the

valve blocking it in the open position.

The spring mounted on drive shaft, via the lever system, closes and keeps the valve closed, pressing

it to the resistance angle bars.

3.2. HE version – with lever-spring mechanism, opened manually.

The structure and operation of the valve in this variant is identical as in the case of HO variant. HE

valves have a micro-switch installed, which via relevant electrical system allows for signalling the

position of the valve partition, and makes it possible to use it in control systems (e.g. switching off the

fan when the valve is closed).

V370/HE RK370/HE

3.3. Version with the solenoid

3.3.1. MR version

In the MR version, the drive system comprises manual lever with a return spring and a solenoid

controlled with power gap. Opening of the valve occurs by turning the manual lever, during which the

return spring is stretched. The cut-off partition is kept open by the keeper of solenoid powered with

24V DC, connected to the power installation via micro-switch on the heat-responsive device. On

request of the ordering party, a valve of this type can be furnished with a rectifier transformer powered

with 230V AC. Closure of the cut-off valve can occur as a result of:

- automatically, as a result of increase in air temperature to the temperature where the heat-

responsive device of the electrical thermal element is actuated and contacts of the trigger

micro-switch are switched, and power supply to the solenoid is disrupted, or as a result of

disconnection of solenoid power supply by the control unit as a result of signals from other

sensors connected in the control system.

- manually by disconnecting power supply for the solenoid by a switch from the fire safety control

unit to periodically control valve operation.

Breaking (unsoldering) of the heat-responsive device in the trigger causes withdrawal of micro-switch

keeper and disrupting power supply to the solenoid. The spring installed on the drive shaft is released

and, via the lever system, causes closure of the partition. Additionally installed limit micro-switch, via

relevant electrical system allows for signalling the position of the valve partition, and makes it possible

to use it in control systems. Regardless of the type, valves with a return spring made of wire with

diameter of 3 mm are furnished with solenoid with keeper holding strength of 120 N. Valves with a

return spring made of wire with diameter of 3.5 mm are furnished with solenoid with keeper holding

strength of 200N N.

3.4. ER version – Opening and keeping the valve partition in the open position in this version, as

well as its closing, is performed by one of electrical actuators of BF series (including digital actuators)

or BLF series by Swiss company BELIMO, specially adjusted to operate fire safety valves. The

actuators can be powered with 24 V DC and AC voltage or with 230 V AC voltage. BLF type actuators

are applied in fire safety valves with the width not greater than 800 mm and height not greater than

500 mm.

Closure of the valve partition occurs automatically as a result of gap in power supply to the actuator.

Gap in power supply to the actuator can be caused by:

- increase in air temperature to the temperature where heat-responsive device of electric thermal

element is actuated and disconnects power supply to the actuator.

- disruption of power supply to the actuator from the signal from fire safety control unit.

Depending on the actuator type applied, the heat-responsive device is used, the operation of which is

identical as in the case of MR type fire safety valve, or some actuator types are manufacturer-

furnished with their own trigger BAE72-S or BAE72. Electric actuator kept live all the time maintains

the valve in the open position. Upon a gap in power supply, the return spring on the drive shaft, using

its accumulated mechanical energy, via the drive system, closes the partition and keeps it closed. In

the case of valve closure caused by power shortage, reconnection of power will cause valve opening.

If power shortage, however, was caused by actuation of the electrical thermal element, reopening of

fire safety valves can only be possible after replacement of the thermal element, on condition no other

elements of the valve have been damaged.

BELIMO actuators feature installed micro-switches that signal drive shaft rotation by 5°and 85°

(position signalling), hence it is not required to install additional micro-switches informing about

position of the partition. BF24TL-T-ST (digital) actuator is connected to the communication bus, which

allows for monitoring of the valve by the centralised system.

The above drive types refer to both round and rectangular fire safety valves.

4. PRINCIPLES FOR INSTALLATION OF FIRE VALVES 4.1. GENERAL REMARKS

Before starting the installation of fire valves, do the following:

4.1.1. Check for conformity of the device supplied with the design (type, variant, size and power

supply voltage).

4.1.2. Check whether there are no visible signs of damage during transport or storage at the site.

4.1.3. Check for completeness of the device, and its operation in justified cases, and prepare the

valve for installation. Checking valve operation comprises their opening and closing, and

observation of the valve during these activities.

All valves are supplied in the closed position.

Valves in HO and HE versions

By turning the manual lever (item 1 Fig. 1a or 2a) clockwise for V370 valves and anti-clockwise for

RK370 valves, switch the cut-off partition of the valve from "closed" to "open" position, at the same

time stretching the closing spring. After turning the lever to full opening of the valve, hook the lever on

manual trigger (item 23 Fig. 1a or 2a), wire protruding from the thermal element (item 3 Fig. 1a or 2a)

so as to keep the valve open. After releasing the manual lever from the catch, the stretched spring

shifts the partition from “open” to “closed” position. Movement of the partition when opening and

closing must be smooth, without stops, binds, and excess resistance. Valve partition must adhere to

ventilation seals on resistance profiles on the entire circumference.

Valves in MR version

Checking the operation of the valves (Fig. 1b; 1d and 2b) is analogical as in the case of HE and HE

versions, except for holding and releasing the manual lever. In order to check these valve versions,

connect relevant voltage to the solenoid (Fig. 1b; 1d and 2b item 3) or transformer (Fig. 1b; 1d and 2b

item 4) via switch allowing for switching the power supply on or off. While checking, switch off power

supply and manually open the valve, contacting the keeper (Fig. 1b and 2b item 2) with the solenoid

(Fig. 1b; 1d and 2b item 3). Valve partition must be kept open by the solenoid. Then disconnect the

solenoid’s power supply. The partition should move to the closed position. Movement of the partition

when opening and closing must be smooth, without stops, binds, and excess resistance. Valve

partition must adhere to ventilation seals on resistance profiles on the entire circumference.

Valves in ER version Valve in this version, without connected power supply of the solenoid, is in the closed position (Fig. 1c

and 2c item 1). By turning the crank at the BELIMO actuator in the direction marked on the actuator,

we open the partition. After complete opening, when the crank is released, the spring wound on the

actuator shaft should automatically close the partition and keep it in this position. Similarly as in the

case of other versions, movement of the partition when opening and closing must be smooth, without

stops, binds, and excess resistance, and valve partition must adhere to ventilation seals at the entire

circumference.

Type V370

Fig. 1a Fig. 1b Fig. 1c

Type RK370

Fig. 2a Fig. 2b Fig. 2c

4.1.4. Check for the size and shape of openings prepared in the walls to set the valves acc. to section

4.2.

4.1.5. Check whether after valve installation it will be possible to open them and access them from the

maintenance side (valve drive) to allow for possible replacement of elements or periodical

check.

4.1.6. If discrepancies are found, take explanatory measures and achieve conformity with the

requirements.

4.2. REQUIREMENTS FOR THE SIZE AND SHAPE OF OPENINGS FOR FIRE VALVE ASSEMBLY DEPENDING ON THE TYPE OF THE WALL.

4.2.1. Requirements for the size and shape of openings for valve installation in the brick wall.

For round valves RK370 For rectangular valves V370

Version HO, HE Version MR Version ER

Valve width

Opening width

Va

lve

he

igh

t

Op

en

ing

he

igh

t

Version HO, HE Version MR Version ER

The axis of the opening made must be in the axis of the ventilation duct installed.

4.2.2. Requirements for the size and shape of openings for valve installation in the wall of cardboard-

plaster boards.

For rectangular valves RK370 For round valves V370

4.3. PRINCIPLES FOR INSTALLATION OF FIRE VALVES

4.3.1. Assembly of the valves must correspond to one of the installation variants acc. to section 4.4.

4.3.2. The partition’s rotation axis can be horizontal or vertical for V370 valves.

4.3.3. Air flow direction via the valve is of no significance for its assembly method (before or after the

partition).

4.3.4. Valves in standard version cannot be exposed to weather conditions or chemically aggressive

environment.

4.3.5. Valve installation can be performed in a vertical fire barrier.

4.3.6. The applied assembly materials and the suspension method must prevent unintentional

change of the valve position against the fire barrier.

4.3.7. The valve must be connected to the ventilation installation without any tensions, in a durable

and leak-proof manner.

4.3.8. In the closed position, the partition must adhere to the resistance angle bars inside the casing

on the entire circumference.

4.3.9. On both sides of the valve partition inside the ventilation duct, there must be free space to

allow for its opening.

4.3.10. Electrical installation of the signalisation and powering of the drive elements must be made

according to the schematic diagrams for the relevant valve version, according to section 4.5.

4.3.11. After installation of the element in the fire barrier (depending on the version, valve or duct),

sealing must be provided between the fire barrier and the element installed, according to the

adopted version. After sealing, check for correct operation of the valve and whether the

elements of the valve drive have not become dirty. If so, clean them.

4.3.12. After installation of the fire valve and test operation, perform the commissioning confirmed with

acceptance document.

CAUTION: When assembling joint valves (valve batteries), apply all the same principles as for single

valves.

4.4. FIRE VALVE INSTALLATION VARIANTS.

Depending on the designed valve situation as regards the fire barrier, there are the following

installation variants:

- in the fire barrier,

- remote from the fire barrier.

A special case of valve situation against the fire barrier is the installation on the surface of the barrier.

For fire barrier class EI120, required thickness “G” amounts to:

Bearing profile

plaster wall

Bearing profile

plaster wall

Plaster boards Plaster boards

- barrier made of concrete - 115 mm,

- barrier made of cellular concrete blocks or full brick - 115 mm,

- light barrier, e.g. of plaster board - 125 mm.

4.4.1. The valves installed inside the opening in a concrete or brick fire barrier acc. to diagram in Fig.

6a and 6b.

4.4.1.1. Place the valve in the fire barrier, in the previously prepared opening acc. to section 4.2.1. In

fire barriers of class EI120 (walls or ceilings) made of concrete, brick, cellular concrete blocks

or full brick with the above thickness “G” (Fig. 6a and 6b), the cut-off partition of the valve

should remain within the axis of the partition. Assembly of the valves in this version in fire

barriers class EI120, but with greater thicknesses must be made observing partition depth acc.

to Fig. 6a and 6b, flange distance from the partition on the side without the drive must not be

greater than values in Table 1.

Table 1

Fire barrier made of: Flange distance from partition for valves V370 and RK370

concrete 32.5 mm

cellular concrete blocks 32.5 mm

full brick 32.5 mm

This requirement means that valves of V370 or RK370 type should protrude from the wall on the

drive side to the distance not greater than B=222.5 mm.

4.4.1.2. Connect the valves with the suspended ventilation ducts on both sides of the fire barrier.

Type V370 Type RK370

Fig. 6a Fig. 6b

4.4.1.3. The gap between the valve casing and the fire barrier must be carefully filled with cement,

lime-cement mix or PROMASTOP MG III fire-protective mortar. It is prohibited to force in any

pieces of brick or concrete while sealing, as this might lead to deformation of the casing

(particularly in cases of valves with large cross-sections), and thus prevent free rotation of the

partition and its closure (friction in slide bearings, or friction between the partition and the

casing).

4.4.2. Valves installed in a light fire barrier made of plaster and cardboard boards acc. to diagram in

Fig. 7a and 7b.

4.4.2.1. Place the valve in the fire barrier opening prepared acc. to section 4.2.2. so that, for barrier

with class EI120 and thickness of 125 mm, the cut-off partition of the valve should remain in

the axis of barrier thickness. Valves of V370 type must protrude from the wall on the drive side

to the distance of 218 mm, while valves of RK370 type must protrude from the wall on the

drive side to the distance of 213 mm. Assembly of valves in this version in fire barriers with

lower fire resistance classes must be made observing valve setting against the barrier acc. to

the data in Table 2.

4.4.2.2. Connect the valves with the suspended ventilation ducts on both sides of the fire barrier.

4.4.2.3. After appropriate valve setting in the fire barrier, seal it with mineral wool with thickness of min.

100 kg/m3 and cover the wall with plaster boards acc. to Fig. 7a; 7b and 7c.

duct

duct valve valve

drive

Fire barrier Fire barrier Cement, lime-cement

mortar or promastop MG

III

Cement, lime-cement

mortar or promastop

MG III

Drive board

Type V370

Valve installation before assembly of ventilation ducts. Fig. 7a

Valve installation with simultaneous assembly of ventilation ducts. Fig. 7b

Metal profile of

plaster wall Steel profile of plaster

wall

Plaster boards

Plaster boards

Plaster board 12.5mm

4 layers

Plaster board

12.5mm

2 warstwy Screws for plaster

Cut-off partition Suspended

ventilation duct

Suspended

ventilation duct

Mineral wool with

thickness of min.

100kg/m3

or fire-safety

foam e.g. PROMAFOAM

Fire-safety foam e.g.

PROMAFOAM

Mineral wool min.

100kg/m3 Mineral wool min.

100kg/m3

Angle bar metal strip

50x25x1 Bilateral sealing of the valve and

wall with fire-safety mass e.g.

PROMASEAL-Mastic

drive drive

Type RK370

Fig. 7c

4.4.3. Valve installed remote from the fire barrier acc. to diagram in Fig. 8a and 8b.

4.4.3.1. Distance from the fire barrier is marked as length “X” of ventilation duct protruding from the

wall constituting the fire barrier acc. to Fig. 8a and 8b.

4.4.3.2. Place the duct in the fire barrier in the previously prepared opening acc. to section 4.2. at the

appropriate length “X”, ensuring the designed distance of the valve from the fire barrier.

4.4.3.3. Assemble the valve with the duct so that its drive remains outside the insulation (cf. Fig. 8a

and 8b).

4.4.3.4. Install ventilation ducts to the valve on one side and to the duct in the fire barrier on the other,

suspending them at a distance not greater than 3 m from the fire barrier axis.

4.4.3.5. Such suspended duct with the valve after relevant setting in the fire barrier must be sealed

with insulation meeting the requirements of fire insulation of the barrier, e.g. conlit.

4.4.3.6. Section (X +120) mm of the duct and valve type V370 acc. to Fig. 8a, and section (X + 100)

mm of the duct and valve type RK370 acc. to Fig. 8b, must be insulated with PROMATECT L

500 boards with 52 mm thickness. At the joint of the valve with the fire barrier, at the entire

circumference, make an additional band of PROMATECT L or L 500 boards with the thickness

of 52 mm acc. to Fig. 8a or 8b. Such an insulation coating must be closed from the head with

PROMATECT L 500 board with the thickness of 30 mm. Before the frontal closure of the

insulation coating, tightly fill the gaps between the valve body and the internal circumference

of the coating with stripes of mineral wool with the cross-section 10x28 mm, and place a layer

of PROMASTOP on it.

4.4.3.7. Frontal closure of the insulation coating for valves of V370 type must be made with stripes of

PROMATECT L or L500 board with thickness of 30 mm, width 81 mm and lengths allocated

according to cross dimensions of the valve installed, so that along sides “B”, there are stripes

by 2.5 mm longer than nominal dimension, and along sides “H”, there should be stripes by 164

mm longer than nominal dimension of the side. Stripes of the board along side “B” can have

cuts of 3 mm each on both ends along dimension “B”, and 30 mm along the width of the stripe

(81mm). In turn, in the case of valve of RK370 type, as frontal closing, make a blind of

PROMATECT L or L 500 board with thickness of 30 mm in the form of square with dimensions

Dn + 176 mm with opening cut in the axis, with diameter Dn + 2.5 mm. The blind installed at

the circumference of the valve body must be sealed with PROMASTOP COATING and MG III,

and to the casing coating after prior gluing.

Bilateral sealing

of valve and wall

with fire-safety

mass e.g.

PROMASEAL-

Mastic

Mineral wool min. 100kg/m3

Mineral wool

Steel profile of plaster w.

Plaster boards

Plaster boards around

Plaster boards around

Mineral wool

Mineral wool

Pla

ste

r b

oa

rd1

2,5

mm

ov

erl

ay

Fixing clamps

4 items

Screw 3.5x25mm

Valve RK370

drive

Detail Fig. 7c

4.4.3.8. Particular elements of the valve installation must be glued with PROMAT K84 and screwed at

the spacing of ~150 mm with screws 6.0 x 90 for plaster boards.

4.4.3.9. The insulated duct with the valve must be suspended at sites marked in Fig. 8a and 8b.

RK370

Fig. 8b

4.4.4. Valves installed on the surface of fire barrier.

4.4.4.1. Valves installation in this manner is a special case of remote valve installation, where value

(X) of valve distance amounts to 0 mm, acc. to Fig. 8c and 8d.

4.4.4.2. Further procedure is analogical as in the case of section 4.4.2. except for number of valve

suspensions.

Fig. 8c Fig. 8d

Mineral wool

Duct

Suspension axis

Suspension axis

Fire barrier

Fire valve

Promatect L500

drive

Type V370 Fig. 8a

Mineral wool min. 100 kg/m^3

Promatect L500

Fire valve

Suspension axis

Fire barrier

Fire barrier

Duct

Duct

Suspension axis Promatect L500

Fire valve

Mineral wool min. 100 kg/m^3

drive

Drive board

Fire valve

Promatect L500 Promatect L500

Fire barrier

Fire barrier

Promatect L or plaster boards

suspension

Suspension axis

Suspension axis

Duct

Mineral wool min. 100 kg/m^3

drive

4.5. DIAGRAMS OF ELECTRICAL CONNECTIONS OF FIRE VALVES.

Control diagram for valve with solenoid

NORMAL STATE

FIRE SIGNALLING FROM SAP

ACTUATION OF THERMAL ELEMENT

Control cabinet

Control cabinet

Control cabinet

Control cabinet

Control

cabinet

Control

cabinet

Thermal el. Thermal el.

Thermal el. Thermal el.

Thermal el. Thermal el.

solenoid

transformer

transformer

transformer

solenoid

solenoid solenoid

solenoid solenoid

Limit switch Limit switch

Limit switch

Limit switch Limit switch

Power shortage

Power shortage

Limit switch

ER (BLF) ER (BLF-T)

Conceptual diagram of electric installations for valves in the ER version with BLF actuator

4.6. EXEMPLARY SYSTEMS FOR FIRE VALVE CONNECTIONS IN SIGNALLING AND CONTROL SYSTEMS

If, in the rooms ventilated, there is fire alarm installation, it is recommended that the actuator of the ER

fire valve and the solenoid of MR fire valve should be powered via contact controlled directly from the

fire safety unit.

4.6.1. Diagram of connections of the actuator of fire valve version ER.

Legend for connections of control and signalling circuits:

�Signalling of fire valve closure – circuit “a" (lamp, switch, sound

alarm, switching off the ventilation).

�Signalling of fire valve opening – circuit “c" (lamp, switch,

ventilation switched on).

�Control of fire valve opening (lamp)

In the case of connecting BLF24-ST or BF24-ST actuators via

BKN230-24, connect clamps 1 and 3 of thermal element with

limit switch to clamps 1 and 2 on the BKN230-24 device (in

place of the keeper, which must be removed).

4.6.2. Diagram of connections of solenoid of fire valve version MR for installation powered with

24/48V DC

Legend for connections of control and signalling circuits:

�Signalling of safety thermal element actuation – circuit “a" (lamp,

switch, sound alarm, switching off the ventilation).

�Signalling of fire valve closure – circuit “b" (lamp, switch, sound

alarm, switching off the ventilation).

�Signalling of fire valve opening – circuit “c" (lamp, switch,

ventilation switched on).

Solenoid conductor in the MR version must be connected to closed contact in the electrical thermal

element.

Control cabinet

Control cabinet Thermal

element

actuator actuator

24/48V DC

or 230V

AC

24/48V DC

or 230V AC

Control cabinet

actuator

24/48V DC or

230V AC

Control cabinet

thermal el.

solenoid

Limit

switch

conductor ‘1’

24/48V

DC or

230V AC

4.6.3. Diagram of connections of the limit switch of fire valve

Legend for connections of control and signalling circuits:

→Signalling fire calve closure: connection “a” signals valve

closure (depending on the control system, lamp is on, sound

signal is on, ventilation is switched off).

�Signalling of fire valve opening – connection “b" (lamp or

sound alarm is off, ventilation switched on).

5. PRINCIPLES FOR FIRE VALVES MAINTENANCE

CAUTION: Before performing activities related to electrical connections or replacement of elements in the valves powered with voltage higher than safe, disconnect power supply.

5.1. Replacement of mechanical thermal element or melting fuse.

After unscrewing two M5 screws (item 9 Fig. to section 5.1.) (optionally nut M6), remove the entire

mechanical thermal element from the valve, item 1, together with plate, item 2. In order to replace the

thermal element (item 3), unscrew the nut (item 4), press the spring (item 7) with the element, and

after the element item 1 is bent to the side, remove the glass element (item 3) from the steel clip (item

6), or remove the protection (item 10) and remove the soldered element from the shank (item 11).

After placing the glass element in the socket in the brass element (item 5), so that the elongated part

of the insert is inside the element, or after placement of soldered element on the shank, assemble the

thermal element in reverse order, not forgetting to place a sealing cushion (item 8) under the thermal

element plate. The glass element must be set precisely in the socket and opening of the elements

(item 6). The shank of the thermal element (item 11) must block the protrusion of the wired catch of

the lever from the thermal element.

Control cabinet

Limit switch

conductor ‘’1’’

c.’2’

c.’3’

24/48V DC or 230V AC

Mechanical glass thermal

element for valves type

RK370 and V370

Mechanical soldered

thermal element for

valves type RK370 &V370

Fig. to section 5.1.

5.2. Replacement of electrical thermal element.

Disconnect the trigger from electric installation and disconnect connections of the trigger at the valve.

After unscrewing two M5 screws (item 4 Fig. to section 5.3.) (optionally nut M6), remove the entire

electrical thermal element from the valve with the plate (item 1), as presented in the drawing below. In

order to replace the thermal element (item 2), unscrew the brass cylinder or nut (item 3), place new

thermal element in the opening or onto the shank (as presented in the drawing), and again screw on

the cylinder on the micro-switch shank (item 5).

Assemble the whole to the valve in the reverse order, not forgetting to place the sealing cushion (item

6). Connect the trigger to the electric installation and open the valve.

5.3. Replacement of the spring.

Before replacing the spring, unscrew the screw (Fig. to section 5.4., item 3) fixing the manual lever on

the drive shaft, set the valve partition in the closed position so that the spring tension is minimum

(lever item 1 resting on the limiter, item 4), and next remove lever (item 1) and damaged spring (item

2). Place the spring on the middle opening in the manual lever and place the whole on drive shaft,

item 5. During placement on drive shaft, manual lever must be set vertically, namely it should rest on

the limiter on the drive board. Set the manual lever in the appropriate distance from the drive board

and screw the screw fixing the lever on the drive shaft. Hook the spring on one of the catches (item 6)

on the drive board, and assess the strength with which the partition is closed.

If necessary, change the spring hooking on the drive board or manual lever,

and again assess correct closing of the valve. Repeat these activities until

your assessment is positive. Correct valve closure occurs where valve

partition freely closes, and the manual lever meets resistance on the drive

board without excess noise. After replacement of the manual lever,

depending on valve version, reassemble the previously removed elements,

and check for their correct operation.

Electrical glass thermal

element for valves type

RK370M

Electrical soldered

thermal element for

valves type RK370M

Fig. to section 5.2.

Fig. to s.5.3.

6. PERIODICAL MAINTENANCE

The need for and the required frequency of maintenance results from analogical requirements of the

installation including RK370 or V370 valves. If no specific requirements have been defined for

periodical maintenance of the installation, or if the periods between particular checks are longer than

six months, check the RK370 or V370 valves at least once every

six months. This is the responsibility of the Facility Owner. Periodical maintenance of RK370 or V370 valves comprises the assessment of their physical condition, and correct operation using the Inspection Document at the end of this Documentation. It is also recommended to assess the condition of the device using the Inspection Document after the end of assembly works and launch of the installation including the RK370 or V370 valves. In order to check correct valve operation, do the following:

6.1. HO and HE versions – release manual lever (item 1 Fig.

13) from the catch (item 2 Fig. 13) keeping the valve open. After

releasing the lever, it moves freely from the open to closed position,

closing the valve partition. Next, manually open the valve, and hook

the manual lever (item 1) at the element (item 2). For valves in HE

version, during the test, observe correct signalling by micro-switch

(item 3) of cut-off partition's position.

If irregularities are found, set the micro-switch actuation point (item

3).

6.2. MR version – disconnect power supply to the solenoid. The

partition should move to the closed position. Then disconnect the

solenoid’s power supply. In MR version, manually turn the manual

lever, leading to contact of the keeper and the solenoid. After the partition

achieves open position, the manual lever will be blocked by resistance of the

keeper against solenoid coil, and valve partition will remain open, kept by the

solenoid. During the test, in both cases, observe correct signalling by micro-

switch of cut-off partition's position. In the event of problems with sustaining the

partition, check for cleanliness of keeper and solenoid surface.

6.3. ER version – disconnect power supply to the BELIMO actuator. The

valve must close (signalled by the steel arrow installed at the actuator axle at

“0°” position of the scale (Fig. 15 item 1).

Operation of the air-handling installation with dysfunctional fire valves bears the high risk of their

non-performance in the event of a fire, and makes the installation user liable.

Open

Op

en

Clo

sed

Close

Fig. 13

Fig. 15

7. LIST OF SPARE PARTS

1. BELIMO actuators – types acc. to table in section 8.1.

2. Solenoid – type acc. to section 8.2.

3. Rectifier transformer AC 230 / DC 24

4. Mechanical thermal element.

5. Electrical thermal element.

6. ESTI thermal element.

7. Soldered thermal element for mechanical trigger.

8. Soldered thermal element for electrical trigger.

9. Micro-switch Z-15GW4.

10. Closing spring – wire 03, 03.5 and 0.4 mm.

The valves do not feature wearing or recommended parts.

8. TECHNICAL DATA OF ACTUATORS AND SOLENOIDS

8.1. Technical data of BELIMO actuators.

Actuator type with release spring Parameters

BF24(-ST)

BFT24

BF24-T

BF230 BFT230 BF230-T

BLF24(-ST) BLF24-T-(-ST)

BLF 230

BLF 230-T

BF 24TL-T-ST

Supply voltage

24V~ ±20%, 50/60Hz

AC 230 V 50/60Hz AC 24V,

50/60Hz

AC 230 V 50/60Hz

AC 24 V 50/60Hz DC 24V

Power

consumption

While

opening 7 W 8 W 5 W 5 W 7 W

While keeping open position

2 W 3 W 2.5 W 3 W 2 W

Rated power 10VA 12.5VA 7 VA 7 VA 10 VA

Protection class

III II III II III

Protection level

IP42 IP42 IP54 IP54 IP54

Auxiliary switch

2xEPU 6(3)A, 250V

2xEPU 6(3)A, 250V

2xSPDT 6(1.5)A, AC250V

2xSPDT 6(1.5)A, AC 250V

Socket to connect BKN230-24LON or BKN230-24MP

Connection point

5°, 80° 5°, 80° 5°, 80° 5°, 80°

Movement time

Actuator (opening) Spring (closing)

140s ~16s (@tamb=20°C)

140s ~16s (@tamb=20oC)

~40÷75s (0÷4Nm) ~20s at -20 ÷ +50oC; max 60s at +50oC

~40÷75s (0+4Nm) ~20s at -20 ÷ +50oC; max 60s at +50oC

~140 s ~16 s at ambient temperature 20oC;

Position indicator

Mechanical with indicator

Mechanical with indicator

Mechanical with indicator

Mechanical with indicator

Mechanical with indicator

Ambient temperature

-30 ÷ +50oC -30 ÷ +50oC -30 ÷ +50oC -30 ÷ +50oC -30 ÷ +50oC

Noise intensity

Motor max.45dB(A); Spring ~62dB(A)

Motor max. 45dB(A); Spring ~62dB(A)

Motor max.45dB(A); spring ~62dB(A)

Motor max.45dB(A); Spring ~62dB(A)

Motor max.45dB(A); Spring ~62dB(A)

Durability min. 60 000 settings

min. 60 000 settings

min. 60 000 settings

min. 60 000 settings

min. 60 000 settings

Maintenance Maintenance-

free

Maintenance-free Maintenance-free Maintenance-free Maintenance-

free

8.2. Technical data of solenoids

Types holding when power supply is on (MR)

Type 5.80.15 P.5.12.44

Supply voltage 24 V DC 24 V DC

Holding force 120 N 200 N

9. FIRE VALVE INSPECTION DOCUMENT

To be downloaded from www.frapol.com.pl

Parameter / Function Result

1. Valve checked

2. Date of check

3. Optical valve condition (mechanical damage, openings, rust, dents)

4. Valve cleanliness - cleaning if necessary

5. Assessment of the condition of conductors powering the actuator, solenoid, and limit switches

6. Assessment of the condition of the partition and the seals – expansion and ventilation seal

7. Check of correct closing of valve partition

8. Physical check of valve response to OPEN / CLOSE control signals

9. Check of return signal from the valve (limit switches)

10. Check of functioning acc. to fire scenario

11. Leaving the valve in the normal operating condition

Performed by: