Truelok DVSttLPPO Diaphragm Valve Pneumatic Actuator NO low pressure diaphragm valves and high pressure diaphragm valves are designed for ultra high purity applications DVSttLPPO Diaphragm Valve Pneumatic Actuator NO spring less diaphragm valves are manufactured in SS316L and SS316L Var body with electroplated whetted surfaces DVSttLPPO Diaphragm Valve Pneumatic Actuator NO UHP manual or pneumatic actuation diaphragm valves are offered in face seal and tube butt weld connections



Ordering Number

Material Actuator

Port 1

End Connection

Port 2

End Connection

DV-S-tt-LPP-O SS 316L Pneumatic N.O. 1/4" Tube Weld  1/4" Tube Weld


Critical Features of Low Pressure Model (Normally Open or Normally Closed) Springless Diaphragm Valves:
- Pressure Rating: 250 psig (17.2 bar)
- Temperature Rating: -10 t0 160°F (-23 to 65°C)
- Flow Coefficient: 0.27

- SS316L & SS316L VAR Body Material for Ultrahigh Purity Applications
- Fully Swept Flow Path Minimizes Entrapment Areas and Maximizes Flow Capacity

Fully contained PCTFE seat design provides
- Outstanding Resistance to Swelling and Contamination.
- Improved Helium Leak Test Performance
- Minimal Particle Generation
- Long Cycle Life

- Excellent in Strength and Corrision Resistance
- Optimal Design for Long Cycle Life