Collection:Stainless Steel Solenoid Valves

Stainless steel 2/2-way solenoid valves are on/off valves for media and environments that can corrode brass, for example demineralized water, many chemicals, and salty air. The usual housing material is 316 stainless steel. There are also versions for steam and for high pressure.

Stainless steel grade

316 stainless steel (1.4401) contains molybdenum. Thus it resists chlorides, for example in cleaning agents and coastal air, better than 304 stainless steel (1.4301). Most stainless steel solenoid valves in the range are 316.

Seals

• Water, hot water, and steam: EPDM.
• Compressed air, oil, and fuel: FKM. It does not resist hot water or steam.
• Steam, solvents, and high temperatures: PTFE.

For acids and other chemicals, the housing and the seal must both resist the exact chemical at its concentration and temperature.

Pressure

• Low pressure difference: direct-acting and semi-direct valves work from zero pressure difference. Indirect-acting valves open fully only from typically 0.2 to 0.5 bar (3 to 7 psi).
• High pressure: high-pressure versions are direct-acting with a small orifice, so their flow rate is low. Select a Kv or Cv value that gives the required flow rate.