Needles Restrictor Hk66k102

Catalogue

Fluid

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d PowerFlHK.66.K1.02

Needles and RestrictorValves

Fluid Power

HK.66.K1.02 © Danfoss Fluid Power 05/932

Fluid Power

Type Description Symbol Models Page

Needle Valves can vary the size of an orifice by adjusting 2N11 5Needle the position of the cone (needle) with relation to its seat. 2N400/401 6(Adjustable) Once open, the valve will continue flow in both directions. 2N600/601 8

Fully closed position will shut off the flow to the circuit. 2N800/801 9

Rotary spool valves vary the size of the orifice by openingRotary Spool milled slots to flow in a very linear relationship to the hand

2F400/401 7(Adjustable) knob position. These valves can be adjusted from full

open to full closed by rotating the hand knob 180°.

Restrictor valves throttle or block flow in one directionRestrictor through the use of a needle adjustment. A built-in reverse 2R11/2R14 10(Adjustable) free-flow check allows unrestricted flow in the reverse 2R400/401 11

direction.

Flow is throttled in one direction by a fixed orifice. TheRestrictor size of the orifice is predetermined for a specific applica-

2RN11/12/13/14/15/16 12(Fixed) tion and is not adjustable. A built-in reverse free-flow

check allows unrestricted flow in the reverse direction.

Types and Operation

Needles and restrictors are non-compensated flow controls whichprovide:Needle valves – Bi-directional and equal controlled flow for eitherdirection of main-flow.Rotary Spool – A fairly linear relationship between the number ofturns open and the controller flow.Restrictors – A controlled flow (fixed or adjustable) in one directionof flow and free reverse flow around the orifice in the oppositedirection.

GeneralNeedles, rotary spools and restrictors provide an adjustable or fixedflow orifice for precise control in circuits where pressure compensa-tion is not required. Typically the needle and restrictor valve orificedesign is sharp edged, so that flow at any setting is fairly insensitiveto temperature variations. These valves provide near zero leakageat shut off and fine control at low flow.

Introduction

Needles and restrictors

3HK.66.K1.02 © Danfoss Fluid Power 05/93

Fluid Power

General ApplicationNeedle Valves are best suited to provide non-pressure compen-sated flow control in either direction for meter-in, meter-out or bleedoff circuits. These valves provide a virtually tight shut-off.Rotary Spool Valves provide the same flow control function asneedle valve and provide the added feature of linear flow vs rotaryadjustment relationship. The shut-off mode has minimal leakage.Restrictor Valves provide free-flow in one direction and restrictedflow, adjustable or fixed, in the opposite direction.

Needle

Restrictor

Introduction

Continued

Typical Circuit

O I

O I

OI

OI

OI


Fluid Power

2N400

2F400

2N600

2N800

2R400

NEEDLES & RESTRICTORS

Needle Valve, 55 350 FC-316 6Adjustable

Manual Flow,Rotary 60 350 FC-316 7

Adjustable



RestrictorValve, 55 350 FC-316 11

Adjustable

Flow Pressure CavityCartridge Schematic Description Pagel/min bar No.*)

Cartridge

Quick reference

*) Standard cavities, see page 14

1 2

1 2

1 2

1 2

1 2


Fluid Power

Specifications• To 45 l/min and 350 bar.• 10 turns from fully open to fully closed.• Weight: 0,17 kg.

Features• Finely threaded adjust stem for

precise control.• Threaded for panel mounting.• Rugged, dirt tolerant and reliable.• Adjustable with min. & max. stops.• 100% performance tested.

Use and OperationA needle valve is a variable orifice usedto restrict flow when pressure compensa-tion is not required.For use as gauge snubbers or shut-offvalves, and may be used for meter-outcircuits.

Materials• Body internal parts — Steel.• Seals — Buna-N standard. Viton A

available.

Performance curve

0

76

0

Pressure bar3,5 10,5

57

38

19

Fully open

2N11

18

l/min

How to order

2N11 - P 2 - S

PORT SIZE2 = 1/4" NPTF

2W = G 1/4

BASE PART NO. ADJUST. MEANSP = Leak Proof

ScrewR = Hand Knob

SEALSS = Buna-N

SV = Viton A

Parts in Body 2N11

Needle valve, adjustable

To 45 l/min and 350 bar

Inport

Outport

"R" Adjust"P" Adjust∅ 36,3

3/4-16For panelmounting

74,7

28,552,3

InIn OutOut

InIn Out


Fluid Power

32,5 ≈ 52

≈ 85

Cartridge 2N400

31,8102,9

50,8

38,1

Specifications• To 55 l/min and 350 bar.• Cavity number: FC-316• Installation torque: 61-67 Nm.*• 8 turns from fully open to fully closed.• Weight (2N400): 0,17 kg.• Weight (2N401): 0,68 kg.* With steel bodies.

For aluminium bodies consult factory.

Feature• Finely threaded adjust stem for

precise control.• Rugged, dirt tolerant and reliable.• Adjustable with min. & max. stops.• 100% performance tested.

“R” Adjust

“P” Adjust

Cartridge in Body 2N401

r ≈ 3,6

7,1

41,2

15,8

19,1

50,8

19,1

Use and OperationA needle valve is a variable orifice usedto restrict flow when pressure compensa-tion is not required.

For use as gauge snubbers or shut-offvalves, and may be used for meter-outcircuits.

Materials• Body — High strength steel with black

oxide coating.• Cartridge — Steel construction with

black oxide coating and brass cap.• Seals — Viton A standard.

Performance curve

0 7,6 38

7

5

3,5

1,8

0

l/min15 23 30

Needle fully open

45 53

bar

∆ p versus flow

7/8-14UNF-2A(-10 SAE)

1.00 in(25,40 mm)

HEX

∅ 36,3

How to order

2N401 - P 6T - SV

PORT SIZE (Body No.)OMIT = Cartridge Only

6T = 3/8" SAE (982293-U)8T = 1/2" SAE (982294-U)

3 = 3/8" NPTF (982291-U)2W = G 1/4 (982292W-U)3W = G 3/8 (982291W-U)

SEALSSV = Viton A

BASE PART NO.2N400 = Cartridge Only2N401 = Cartridge in Body

ADJUST. MEANSP = Leak Proof

ScrewR = Hand Knob



3,1

1

2

1 2


Fluid Power

Cartridge 2F400

Cartridge in Body 2F401

50,8

108,0

50,8

38,13,1

r ≈ 3,6

19,17,1

41,2

15,8

31,8

19,1

57,2

89,7

32,5

7/8-14UNF-2A(-10 SAE)

1.00 in(25,4 mm)

HEX

Specifications• To 60 l/min and 350 bar.• Cavity number: FC-316.• Installation torque: 61-67 Nm.*• Weight (2F400): 0,23 kg.• Weight (2F401): 0,74 kg.* With steel bodies.


Features• Excellent adjustment pressure rotary

characteristics.• Smooth starts and stops.• Adjustable with min. & max. stops.• Graduation indicators to show low to

high flow positions.• 100% performance tested.

Use and operationThe manual rotary two way is a windowstyle metering valve. The rotary spool isturned and the intersecting milled slotsare opened to flow in a very linearrelationship to the handle position. Thevalve can be adjusted from full open tofull closed by rotating the hand knob180 degrees. In the full open position thevalve is rated for a maximum flow of 60 l/min at 7 bar ∆P. Because the valve isnot pressure compensated, flow throughthe valve can be affected by inletpressure. The spool style design doesnot lend itself to low leakage shut-offapplications.

Materials• Body — High strength steel with

black oxide coating.

• Cartridge — Steel construction with blackoxide coating and brass cap.

• Seals — Viton A standard.• Hand knob — Plastic standard. Metal

available.

2F401 - R 6T - 10 SV

FLOW RANGE10 = 40 l/min

ADJUST. MEANSR = Hand Knob

BASE PART NO.2F400 = Cartridge Only2F401 = Cartridge in Body

SEALSSV = Viton A

PORT SIZEOMIT = Cartridge Only

6T = 3/8" SAE (982293-U)8T = 1/2" SAE (982294-U)

3 = 3/8" NPTF (982291-U)2W = G 1/4 (982292W-U)3W = G 3/8 (982291W-U)

How to order

Performance curve

Rotary flow control, adjustable


1

2

1 2


Fluid Power

Cartridge 2N600

Specifications• To 150 l/min and 350 bar.• Cavity number: FC-324.• Installation torque: 237 Nm.*• Weight (2N600): 0,32 kg.• Weight (2N601): 2,00 kg.* With steel bodies.



precise control.• Rugged, dirt tolerant and reliable.• Adjustable with min. & max. stops.• 100% performance tested.



oxide coating.• Cartridge — steel construction with

black oxide coating and brass cap.• Seals — Viton A standard.


15/16-12UNF-2A(-16 SAE)

≈ 50 (open)

"R" Adjust

"P" Adjust

1.50 in(38,1 mm)

HEX

46,0

≈ 96

50,8

23,9

125,5

76,2

68,6

7,1

25,4

∅ 8,6

82,6

50,8

"P" Adjust

Performance curve

19 38 57 76 151 170132

210

105

70

35

l/min

175

140

0

Open(1)

Turn (2)

(3)

(4)

(5)(6)

(8)

95 115 1950

bar

2N601 - P 8 - SVHow to order


ADJUST. MEANSP = ScrewR = Hand Knob


16T = 1" SAE (983314-U)8 = 1" NPTF (983315-U)

SEALSSV = Viton A



57,2

1

2

1 2


Fluid Power

58,0

Specifications• To 300 l/min and 350 bar.• Cavity number: FC-329.• Installation torque: 405 Nm.*• Weight (2N800): 0,77 kg.• Weight (2N801): 4,17 kg.* With steel bodies.



precise control.• Steel working parts for long life.• Rugged, dirt tolerant and reliable.• Adjustable with min. & max. stops.• 100% performance tested.



oxide coating.• Internal parts — Hardened steel.• Cartridge — Steel construction with

black oxide coating.• Seals — Viton A standard.

88,9

150,4

63,5

31,8

60,2

101,6

81,0

10,4 63,5

∅ 10,4

31,2

“P” Adjust

“R” Adjust

15/8-12 UN-2A(-20 SAE)

1.88 in (47,8 mm) HEX

61,5

≈ 80 (open)

≈ 138

“R” Adjust

Cartridge 2N800


Performance curve

∆ p versus flow

bar

Open 1turn

2 3

4

5

7

6

8

76 151 227 303 38038 115 190 265 341

42

28

14

56

70

l/min

2N801 - R 20T - SV


How to order

SEALSSV = Viton A

ADJUST. MEANSP = ScrewR = Hand Knob


20T = 1-1/4" SAE (983326-U)



“P” Adjust1 2

1

2


Fluid Power

Parts in Body 2R11 and 2R14

A B C D

mm mm mm Thread

2R11 81 75 28 3/4-16

2R14 109 79 38 3/4-16

Performance curves

∅ 36,3"P" Adjust "R" Adjust

3/4-16For panelmounting

A C

B

Restricted flow

Inport

Outport

Specifications• To 105 l/min and 350 bar.• Weight: 0,20 kg.


precise control.• Hardened steel working parts for long

life.• Low leakage.• Rugged, dirt tolerant and reliable.• Built-in reverse flow check.• Adjustable with min. & max. stops.• 100% performance tested.

Use and OperationTo regulate speed of actuators in onedirection (where pressure compensationis not required) and provide free-flow inother direction.

Free-flow is allowed in one direction,through check section. Return flow isrestricted or throttled by needleadjustment.

Materials• Body and internal parts — Steel.• Check component — Hardened steel poppet.• Seals — Buna N standard. Viton A available.

0 15

18

10,5

0

l/min

30

3,5

Restricted

45

Free-flow

l/min 0 15

18

10,5

0

bar

30

3,5

Restricted

45

Free-flow

7

14

61 76 91 106 l/min

∆ p versus flow

2R142R11

PORT SIZE2 = 1/4" NPTF

2W = G 1/46 = 3/4" NPTF

6W = G 3/4

BASE PART NO. ADJUST. MEANSP = Leak Proof

ScrewR = Hand Knob

SEALS = Buna-N

SV = Viton A

2R11 - P 2 - SHow to order

Restrictor valve, adjustable, with reverse free flow check

2R11: To 45 l/min and 350 bar. 2R14: To 105 l/min and 350 bar

Model

Free-flow

1 2


Fluid Power

Specifications• To 55 l/min and 350 bar.• Cavity number: FC-316.• Installation torque: 61-67 Nm.*• Weight (2R400): 0,23 kg)• Weight (2R401): 0,74 kg.* With steel bodies.



precise control.• Hardened steel working parts for long

life.• Low leakage.• Rugged, dirt tolerant and reliable.• Built-in reverse flow check.• Adjustable with min. & max. stops.• 100% performance tested.

Cartridge 2R400

≈ 85

≈ 5332,5

Cartridge in Body 2R401

“R” Adjust

“P” Adjust

7/8-14UNF-2A(-10 SAE)

1.00 in25,4 mm

HEX

∅ 36,3

1 2

Performance curve

Restrictor valve, adjustable, with reverse free flow check


Use and OperationTo regulate speed of actuators in onedirection (where pressure compensationis not required) and provide free-flow inother direction.

Free-flow is allowed in one direction,through check section. Return flow isrestricted or throttled by needle adjust-ment.

MATERIALS• Body — High-strength steel with black

oxide coating.• Cartridge — Steel construction with

black oxide coating and brass cap.• Internal parts — Hardened steel.• Seals — Viton A standard.

Adjustfully closed

0 23 38

41

28

14

0

bar

7,6 15 30

Flow to

Adjustfully open

45 53

1 2

l/min

∆ p versus flow

How to order

2R401 - P 6T - SV

BASE PART NO.2R400 = Cartridge Only2R401 = Cartridge in Body

ADJUST. MEANSP = Leak Proof

ScrewR = Hand Knob


6T = 3/8" SAE (982293-U)8T = 1/2" SAE (982294-U)

3 = 3/8" NPTF (982291-U)2W = G 1/4 (982292W-U)3W = G 3/8 (982291W-U)

SEALSSV = Viton A

38,1

50,8

102,9

50,8

3,131,8

15,8

19,1

7,1

r ≈ 3,6

19,1

41,2

1

2


Fluid Power

Rated Free Flow Max. Pressure Weight

l/min. bar kg

2RN11 20 350 0,11

2RN12 30 350 0,17

2RN13 70 350 0,31

2RN14 95 350 0,54

2RN15 150 350 1,0

2RN16 225 350 1,9

Parts in Body

Outlet

Freeflow

Inlet

AB

2RN11 2RN12 2RN13 2RN14 2RN15 2RN16

mm mm mm mm mm mm

A 70 76 89 108 124 138

B 19 22 29 35 44 57

Dimensions

Free-flow

1 2

2RN11To 20 l/min and 350 bar






• Max. pressure port 1: 350 barMax. pressure port 2: 175 bar

Features• Built-in reverse flow check.• 100% performance tested.

Use and operationTo regulate speed of actuators in one direction(where pressure compensation is not required)and provide free-flow in other direction.Free-flow is allowed in one direction, throughcheck section. Return flow is restricted or throttledby the orifice size.

Materials• Body — Steel.• Internal parts — Hardened steel.• Orifice — Brass.• Seals — None.

• Std. cracking pressure: 0,2 bar othercrack pressures available uponrequest.

Specifications

Restrictor valve, fixed flow, with reverse free flow check

To 20 - 225 l/min and 350 bar, see below

Inletport

1Outletport

2

1 2


Fluid Power

Performance curves

∆ p versus flow. Typical curves for crack pressure

2RN11 - 2 - .012

PORT SIZE2RN114T = 1/4" SAE

2 = 1/4" NPTF2W = G 1/4

2RN126T = 3/8" SAE

3 = 3/8" NPTF3W = G 3/8

2RN138T = 1/2" SAE

4 = 1/2" NPTF4W = G 1/2

2RN1412T = 3/4" SAE

6 = 3/4" NPTF6W = G 3/4

2RN1516T = 1" SAE

8 = 1" NPTF8W = G 1

2RN1620T = 1-1/4" SAE10 = 1-1/4" NPTF

10W = G 1-1/4

ORIFICESpecify by size or providerequired flow at pressureExamples:

.012 = Orifice Size or

.5/1000 = .5 gpm at 1000 psi

BASE PART NO.2RN11 =20 l/min2RN12 =To 30 l/min2RN13 =To 70 l/min2RN14 =To 95 l/min2RN15 =To 150 l/min2RN16 =To 225 l/min

2RN122RN11

2RN13 2RN14

2RN15 2RN16

2RN11, 2RN12, 2RN13, 2RN14, 2RN15 and 2RN16

Continued

How to order

21

7

3,5

0

10,5

14Free flow

Restricted flowbar

18

3,8 7,6 11 15 19

Free flowbar

Restricted flow

0

0,84

0,28

0,14

0,42

0,56

0,7

l/min

0

0,84

0,28

0,14

0,42

0,56

0,7

3,8 7,6 11 15 3019 23 26

21

7

3,5

0

10,5

14Free flow

18

Restricted flow

Restricted flowbar

Free flowbar

l/min

0

41

14

7

0

21

28

0,84

0,28

0,14

0,42

0,56

0,7 35

7,6 15 23 30 6838 45 53 61

Free flow

Restricted flow

Restricted flowbar

Free flowbar

l/min

0

18

(7

3,5

0

10,5

14

0,7

0,28

0,14

0,42

0,56

19 38 57 76 95

Free flow

Restricted flow

Restricted flowbar

Free flowbar

l/min

0

21

7

0

14

1,3

0,42

0,84

Free flow

Restricted flow

38 76 115 151

Restricted flowbar

Free flowbar

l/min

Free flow

Restricted flow

38 76 115 151 190 2270

21

7

0

14

1,3

0,42

0,84

Restricted flowbar

Free flowbar

l/min


Fluid Power

Spot face57,7

39,1

43,4

FC-316Two port

FC-324Two port

Note: Please obtain certified cavity and tool drawings before machining.



Spot face29,7

33,3

23,916,0

14,2

Port

Port

20,8 0,3

7/8-14UNF-2B;14,7 deep

11,2

19,133,3

Port

Port

19,1

15/16-12 UN-2B;22,3 deep

28,7

31,2

44,5 Spot face

0,5

46,7

43,7

15/8-12 UN-2B;22,3 deep

0,3

59,4

25,4

36,6

25,4

Port

Tools Required for Machining CavityDrill: D-1987Reamer: R-1866Tap: T-1156

FC-329Two port

Tools Required for Machining CavityDrill: D-1916Reamer: R-1800Tap: T-1153

Standard cavities

Tools Required for Machining CavityDrill: Std. 9/16 inchDrill: D-1844Reamer: R-1731Tap: T-1135

1

2

1

2

1

2Port


Fluid Power

Fluid Controls Products

Product and catalogue survey CatalogueProducts

Ordering No.

Spreader Valves HK.66.B -.02

600 Series Valves HK.66.C -.02

400 Series Valves HK.66.D -.02

Relief Valves HK.66.F -.02

Sequence Valves HK.66.G-.02

Pressure Reducing Valves HK.66.H -.02

Motion Control Valves HK.66.I -.02

Unloading Valves and Pressure Intensifying Valves HK.66.J -.02

Needles and Restrictor Valves HK.66.K -.02

Flow Regulator Valves and Flow Divider Valves HK.66.L -.02

Pilot operated Check Valves HK.66.M-.02

Directional Control/Logic Valves HK.66.N -.02

Solenoid Directional Control Valves HK.66.O-.02

Fluid Power


World Class Leadership in TechnologyDanfoss Fluid Power, a division of Danfoss, Inc., offers one of the world’slargest selections of quality fluid power components. An exceptional overalloffering of Danfoss, Dukes, Fluid Controls and Webster components allowsyou to choose the right products to meet your application. All of our units aremanufactured and tested to exacting engineering and quality control stan-dards to provide reliable long lasting performance.

Danfoss ProductsDanfoss products are known throughout the world for their quality, reliabilityand flexibility. From hydraulic motors, pumps, actuators and hydrostatic steer-ing components, to proportional hydraulics and electronics, Danfoss compo-nents redefine the leading edge.

Dukes ProductsThe Dukes name is recognized as the premier U.S. manufacturer of mobiledirectional control valves for applications to 115 l/min. Your specific needscan be addressed with mono-block or stack valves, or if required, a customdesigned valve.

Fluid Controls ProductsBeginning with the development of a compact, pilot-operated hydraulic reliefvalve over 40 years ago, Fluid Controls has remained a pioneer in hydraulicproduct miniaturization. Along with the wide variety of cartridge valves cur-rently available, Fluid Controls also features parts-in-body valves, andhydraulic integrated circuits to meet all of your requirements.

Webster ProductsSince 1945, Webster has been at the forefront in the development ofhydraulic gear pumps and cost effective multi-circuit components. Offering awide range of gear pumps and motors, Webster products can be found in amultitude of applications. The AC and DC power unit lines offer dependable,self-contained sources of hydraulic power. Flow dividers and rotary shearvalves further enhance the Webster line and expand the choices availablefrom Danfoss Fluid Power.

Danfoss A/S (SW-C) DTP 9.93 AO

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Needles Restrictor Hk66k102