Butterfly Valve SwissValve Type CST

Part B

August 2012, Page 2

1. Overview

2. Disc

3. Liner

4. Back-up

5. Body (Wafer and Lug)

6. Atex Construction

7. Shaft Seal

8. Applications

9. Sales Arguments

10. Conclusion

Index

Index – Overview - Disc – Liner – Backup – Body – Atex – Shaft Seal – Applications – Sales Arguments - Conclusion

August 2012, Page 3

Overview

Backup

Disc

Spring Package withCompression Piece

Body

Liner

Index – Overview - Disc – Liner – Backup – Body – Atex – Shaft Seal – Applications – Sales Arguments - Conclusion

August 2012, Page 4

Disc���� Square OR Double-D

Disc up to DN1050

Materials

• P – PFA (up to DN750)

• C – PFAC conductive PFA

• S – Stainless Steel 1.4469/1.4462/1.4404

• F – Polished Stainless Steel

• T – Titanium, Grade 2

• H – Hastelloy C22

Index – Overview - Disc – Liner – Backup – Body – Atex – Shaft Seal – Applications – Sales Arguments - Conclusion

August 2012, Page 5

Construction of the Disc bigger than DN 200

Special welding construction for disc cores for PFA encapsulation

Index – Overview - Disc – Liner – Backup – Body – Atex – Shaft Seal – Applications – Sales Arguments - Conclusion

August 2012, Page 6

DN750 (30“) PFA – encapsulated disc � our biggest dimension up to now!

PFA Disc DN750

Index – Overview - Disc – Liner – Backup – Body – Atex – Shaft Seal – Applications – Sales Arguments - Conclusion

August 2012, Page 7

TFM-Liner���� Thickness minimum 3 mm

Ball-shaped

Liner

Materials

• T - TFM

• C - TFMC (conductive TFM)

• U - UHMPE (Ultra High MolecularPolyethylene, up to 95°C)

Index – Overview - Disc – Liner – Backup – Body – Atex – Shaft Seal – Applications – Sales Arguments - Conclusion

August 2012, Page 8

• TFM is the product of ordinary PTFE and a 1% fraction of Perfluoropropyl Vinyl Ether (PPVE).

• TFM includes the advantages of ordinary PTFE (� excellent chemical

resistance, applicable in a wide temperature range, low embrittlement and therefore low ageing) and the benefit of the additional PPVE which leads to a substantially improved allocation of the PTFE molecules and to a overall more dense polymer structure.

TFM – A High Performance PTFE

TFM PTFE

Fluorine

Carbon

Oxygen

Index – Overview - Disc – Liner – Backup – Body – Atex – Shaft Seal – Applications – Sales Arguments - Conclusion

August 2012, Page 9

The advantages of TFM can be measured by the reliability of the systemand the enhanced life time of the valve. The smooth surface of the TMF evokes just a small abrasion of the liner and therefore less TFM/PTFE particles in the medium. Simultaneously the shutdown times and themaintenance costs will be reduced while the operation reliabilitygrows.

PTFE TFM

Advantage 1 of TFM: Surface� 50-times Magnified

Index – Overview - Disc – Liner – Backup – Body – Atex – Shaft Seal – Applications – Sales Arguments - Conclusion

August 2012, Page 10

Advantage 2 TFM: Cold Flow� Measured as Deformation after Load

Irreversible deformation after cyclic Load

Load: 150bar during 100h, Temperature 23°CIrreversible deformation, 24h after release.

TFM has significant better properties concerning cold flow:

� The values are comparable to PTFE with 25% glass fibre.

Index – Overview - Disc – Liner – Backup – Body – Atex – Shaft Seal – Applications – Sales Arguments - Conclusion

August 2012, Page 11

Advantage 3 TFM: Permeability

Permeability of different media using TFM compared with ordinary PTFE (Thickness TFM and PTFE = 1mm)

���� Reduced Permeability which means better blocking properties!

Index – Overview - Disc – Liner – Backup – Body – Atex – Shaft Seal – Applications – Sales Arguments - Conclusion

August 2012, Page 12

Material

• S - Silicone (Standard)

• V – Viton

• F – Viton FDA

• E - EPDM

Backup

Backup���� Injection mouldedfor high precision

Index – Overview - Disc – Liner – Backup – Body – Atex – Shaft Seal – Applications – Sales Arguments - Conclusion

August 2012, Page 13

Materials• G -0.7043(GGG40.3)/Epoxy• S –Stainless Steel• C –C-Steel

Coating• Sand Blasted Sa 2.5 (DIN 55 928)• 2-Component Primary Coat (Epoxy phosphate

primer, 60my) and 2-Component Epoxy Finish (Polyurethane lacquer, 60my) � Avarage coatingthickness: 120my

• Standard colours: Premium Line with mod. PTFE Liner = RAL5011, economyLine with virgin PTFE Liner = RAL3004

• Max. allowable permanent temperature: 140°C dry heat)

Bolts• High strength hexagon socket head cap screw,

zinc plated, 12.9 = 1080 N/mm2

Body

Index – Overview - Disc – Liner – Backup – Body – Atex – Shaft Seal – Applications – Sales Arguments - Conclusion

August 2012, Page 14

Wafer TypeDIN PN10DN050-300

Types of Bodies

Special MaterialsWafer and Lug TypeDIN PN10 DN040-600welded construction

Lug TypeDIN PN10

DN040-1050

Index – Overview - Disc – Liner – Backup – Body – Atex – Shaft Seal – Applications – Sales Arguments - Conclusion

August 2012, Page 15

DN050-300 (except DN125)

Lug type with tapped holes

Wafer type withholes drilled through

High Performance Plastic Body VE-CF

Index – Overview - Disc – Liner – Backup – Body – Atex – Shaft Seal – Applications – Sales Arguments - Conclusion

August 2012, Page 16

• Material:High-Tec Duro-PlastVE-CF (Vinylester pellets, Norpol Dion 9700)10% Carbon fibre10% Glass fibre

• Application Temperature:-30 up to 130°C

• System Pressure: 10bar

• No corrosion

• Weight saving construction

• The VE-CF body is conductive� available in Atex version

Features of the Plastic Body VE-CF

Index – Overview - Disc – Liner – Backup – Body – Atex – Shaft Seal – Applications – Sales Arguments - Conclusion

August 2012, Page 17

Contact 1(earth connection)

Body � Disc

Butterfly Valves ATEX 94/9/EG

Atex

Contact 2Body � Liner

Contact 3Body � Body

Index – Overview - Disc – Liner – Backup – Body – Atex – Shaft Seal – Applications – Sales Arguments - Conclusion

August 2012, Page 18

Our standard shaft sealing systemcomplies with the requirements of TA-Luft according VDI 2440

• Number of Cycles: 4000

• Design Temperature: 200°C

Shaft Seal

TA-Luft

Index – Overview - Disc – Liner – Backup – Body – Atex – Shaft Seal – Applications – Sales Arguments - Conclusion

August 2012, Page 19

1. Primary sealing: Axialwith contact pressingforce through bellevillespring washers

Sealing System 1/2

2. Radial seal on the neckof the shaft (lip-seal)

Index – Overview - Disc – Liner – Backup – Body – Atex – Shaft Seal – Applications – Sales Arguments - Conclusion

August 2012, Page 20

3. Security sealing: O-Ring

Sealing System 2/2

4. Additional sealing: Compressed silicone / viton washer sealsbetween Shaft and Body

Index – Overview - Disc – Liner – Backup – Body – Atex – Shaft Seal – Applications – Sales Arguments - Conclusion

August 2012, Page 21

Spring Package with Compression Piece

Oil Paper (corrosion protection between body and pressure package)

PTFE coated permanently lubricated bearing

Oversized press fit bushing with inner and outer Viton atmospheric seals (material POM, Polyacetal)

Bellville spring washer

Dynamically loaded

mechanical shaft seal Pusher (material 316)

Washer (same material like backup)

Washer (Garlock IFG 5500)

Index – Overview - Disc – Liner – Backup – Body – Atex – Shaft Seal – Applications – Sales Arguments - Conclusion

August 2012, Page 22

Torques

• The torque figures can be found in the Maintenance Instructions

• There is NO NEED to add additional security. The values given in the tablecan be applied directly.

Index – Overview - Disc – Liner – Backup – Body – Atex – Shaft Seal – Applications – Sales Arguments - Conclusion

August 2012, Page 23

• Chemical Industry

• Pharmaceutical Industry

• Petrochemistry

• Food Industry

• Water Treatment

Applications

Index – Overview - Disc – Liner – Backup – Body – Atex – Shaft Seal – Applications – Sales Arguments - Conclusion

August 2012, Page 24

Injection moulded Backups for highest precision and zeroleackage

Ball-shaped Liner for steadytorque and long lifetime

Shaft: 4-Square OR 2-D

Ball-shaped sealing (Disc, Liner and Pressure Package) for less abrasion and best sealing performance

Multiple Sealing against theatmosphere: 0 Leakage, TA-Luft 4000 cycles!

TFM as a much better PTFE: Smooth surface, less cold flow, better blocking properties

Only 1 up to 2 weeks delivery time for standard types!

Index – Overview - Disc – Liner – Backup – Body – Atex – Shaft Seal – Applications – Sales Arguments - Conclusion

Sales Arguments

August 2012, Page 25

Conclusion

We supply Swiss Quality!=

Security and Reliability in Products and Services

Index – Overview - Disc – Liner – Backup – Body – Atex – Shaft Seal – Applications – Sales Arguments - Conclusion