BVS3, BVS4 Series
Holmbury’s BVS3 and BVS4 Series high-pressure ball
valves are designed to suit a wide range of applications.
These valves should not be used as flow control valves and
should therefore always be fully open or closed.
valves are designed to suit a wide range of applications.
These valves should not be used as flow control valves and
should therefore always be fully open or closed.
Features
• Floating ball design maximises sealing• Full bore valves provide unrestricted flow pathfor negligible pressure drop• Open to close in 1/4 turn• Offset handle allows clearance for easy operation
Accessories
• Valve locking kits and valve handles are availablefor the BVS3, BVS4 Series
Construction
• AISI 316 stainless steel body (Some internalcomponents carbon steel)• Zinc alloy handle• Forged steel option available• Fitted with FKM and POM seals as standard• Also available in carbon steel (See BVC3, BVC4 Series)
Applications
• Marine• Offshore• Pharmaceutical• Power Generation
AVAILABLE SEALS AND TEMPERATURE RANGE
All carbon steel products have Nitrile Butadiene Rubber seals fitted as standard. All stainless steel products have Fluoro-elastomer Rubber (Viton®) seals fitted as standard. Special seal materials available on request.
0°
Nitrile
EPDM
Viton®
Kalrez®
0°
Viton®
Kalrez®
Nitrile
EPDM
Abbreviation | Trade Name | Chemical Name | Min Temp. | Max Temp. |
NBR XNBR | Chemigum®, Hycar8, Breon®, Butakon®, Butacril®, Buna-N®, Perbunan®, Paracril®, Krynac®, Europrene-N®, Nipol® | Nitrile Butadiene Rubber Carboxylated Nitrile Rubber | -40°C (-40°F) | 106°C (223°F) |
FKM (FPM) | Dai-el®, Fluorel®, Tecnoflon®, Viton® | Fluoro-elastomer Rubber | -20°C (-4°F) | 200°C (392°F) |
EPR EPDM | Buna-AP®, Dufral®, Epsyn®, Nordel®, Epcar8, Keltan®, Royalene®, Polysar-EPDM® | Ethylene Propylene Copolymer Ethylene Propylene Terpolymer | -50°C (-58°F) | 120°C (248°F) |
FVMQ | Silastic 1S®, FSE® | Fluorosilicone Rubber | -65°C (-85°F) | 170°C (338°F) |
FFKM | Perlast®, Kalrez®, Chemraz®, Kaflon® | Perfluoroelastomer | -25°C (-13°F) | 300°C (572°F) |