These NEW Edwards SP25K 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 can be panel mounted. These valves have red indicators to show the "open" position.

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: 9.0 l s-1
Pressure Rating using Co-Seal: 9 bar / 131 psi
Panel thickness: 3mm or .117 inch maximum
Weight: (g/oz) 760 / 26.6
Baking Temp: 60 °C

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