The Model 4370 Series Diaphragm Valves feature positive shut-off with minimum force and a diaphragm seal for high purity and low diffusion. The 4370 Series Full Turn Valves are recommended for high purity applications. These diaphragm valves have multiple metal diaphragms which provide a seal capable of passing a helium leak test to 2 x 10-8 scc/sec.
• Pressure Range: Vacuum to 3500 psig (24,100 kPa)
• Temperature Range: -65° F to 150° F (-54° C to 65° C)
• Seat: Kel-F
• Cv Factor: 0.13
• Orifice: 0.125