These NEW Edwards SP40K Seedivalve come with Viton diaphragm and the valve bodies are made of aluminum alloy. The complete valve is leak tight to better than 10-6 mbar l s-1 / 7.5 x 10-7 Torr l s-1 at 1 bar differential. The mechanism is isolated from the system by the diaphragm resulting in an extremely rugged and "dirty" system tolerant valve. Diaphragm is Viton fluoroelastomer. Valves are suitable for pipeline mounting only.

Body: Aluminum alloy to BS1490
Handwheel and bonnet: Glass reinforced plastics
Diaphragm: Viton fluoroelastomer
Maximum leak rate across body: 10-6 mbar l s-1 / 7.5 x 10-7 Torr l s-1
Maximum leak rate coupling: 10-7 mbar l s-1 / 7.5 x 10-8 Torr l s-1
Molecular conductance: 23.3 l s-1
Pressure Rating using Co-Seal: 9 bar / 131 psi
Weight: (g/oz) 2300 / 80.5
Baking Temp: 60 °C

Suitable for pipeline mounting only. These Speedivalves are primarily for vacuum processes. They are brand new.