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STV Series - Diaphragm isolation solenoid valve

Orifice diameter 1.0 - 1.2mm

STV 3-way valve
STV 2-way M6 valve
STV 2-way valve
STV 2-Way Valve Thread and Push-In
STV Valve Flange connection
STV 3-way valve Threaded connection long
STV 3-way valve Threaded connection short
STV valve series Manifold


2/2-ways diaphragm isolation solenoid valves with fluid separation.

A large selection of wetted materials and connection options allows a wide range of applications.

A 2/2-ways version with push-in fittings is available for this series. These connections allow PTFE or PFA hoses with an outside diameter of 2.0 mm.


Type 2/2-way normally closed
2/2-way normally open
Orifice diameter 1.0 - 1.2 mm
Port Connection M6 | 1/4-28UNF | Push-In | Hose nozzles | Flange | Push-In fittings (for 2/2-way)
Rated voltage 12 VDC | 24 VDC
other voltages on request
Operating Pressure range input: -900 - 2000 mbar
output (NC | NO): 0 - 500 mbar
Diaphragm material PTFE
Body material PEEK | PPS | PTFE | POM
Seal material Soft-Seal PTFE | Perfluoroelastomer (FFKM) | FPM
Other wetted materials PTFE | Ceramic - AL2O3 for 3/2 way
Fluid temperature range 0 - 50°C (higher temperatures on request)
Ambient temperature range 0 - 50°C (higher temperatures on request)
Power consumption 1.7 - 2.9W
(depending on model)
Operating mode 100% ED
Mounting position Any
Fluid Resistant to neutral and aggressive liquids / gases
(see resistance lists)
Dimensions Ø20.0 x 42.5 mm

Customizable to specific requirements (e.g. higher pressure range, different operating mode, higher temperature range, different operating voltage, different port connections, ...)

STV Push-In

STV series push-in connectors

Some models of this valve series are also available with push-in connections directly to the valve body. Read more about the technical information on push-in connections.