Collection:Brass Solenoid Valves

A brass 2/2-way solenoid valve opens or closes 1 line. Brass is the most common housing material for these valves, for water, hot water, steam, compressed air, oil, and fuel. The seal must be compatible with the medium. Sea water, demineralised water, and many acids attack brass: for these media, a stainless steel or plastic valve is the better choice.

Seal for each medium

• Water, hot water, and steam: EPDM, the seal on most brass solenoid valves.
• Compressed air, oil, and fuel: FKM. Do not use FKM for hot water or steam.
• Cold water, compressed air, and oil: NBR.

Choosing a brass solenoid valve

• Low pressure difference: for water from a tank or another low pressure difference, use a semi-direct or direct-acting valve. An indirect-acting valve needs typically 0.2 to 0.5 bar (3 to 7 psi).
• Thread: most brass solenoid valves have a BSP thread (marked G). For NPT pipe, choose a version with an NPT thread.