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Technical Data

Control: Force-pilot operated, no pressure difference required.
Design: Piston.
Connection: Weld-on sleeve connection G1/4 – G2 (ISO 4200).
Installation: Actuator upright.
Pressure range: 0–16 bar (see table).
Media: Clean, neutral gaseous and liquid media.
Max. viscosity: 22 mm²/s.
Temperature range:
- Medium: -196°C to +80°C.
- Environment: -55°C to +50°C.
Body: Brass 2.0402 or stainless steel 1.4581.
Internal parts: Brass and stainless steel.
Sealing: PTFE.
Supply voltage: AC~ 24V, 110V, 230V; DC= 12V, 24V (others on request).
Voltage tolerance: -10% / +10%.
Power consumption:
- S802 = 24 Watt.
- S322 = 30 Watt.
- S242 = 46 Watt.
Protection: IP65 (DIN 60529).
Duty factor: 100% ED-VDE 0580.
Connection: Terminal box.

Series 91K 2/2-way cryogenic solenoid valve 0–16 bar G1/4 – G2

The Type 91K is a force-pilot operated piston valve specifically designed for cryogenic liquids and neutral media. The valve is suitable for extreme temperatures as low as -196°C, making it ideal for demanding industrial applications.

In the event of a power failure, the valve closes automatically, ensuring safe operation. Furthermore, it does not require a pressure differential to function properly, offering additional flexibility within various installations.

The body is available in brass (2.0402) or stainless steel (1.4581), and thanks to the PTFE seals, the valve is also resistant to aggressive media. The system is available with weld-on connections ranging from G1/4 to G2 and can be used at pressures up to 16 bar.