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Model:

2W21

2W21 Direct Acting Stainless Steel Diaphragm Solenoid Valve

The 2W21 Stainless Steel Series is a high-durability direct-acting solenoid valve designed for demanding industrial applications. Constructed from high-grade Stainless Steel (SS304/SS316), this valve offers superior corrosion resistance compared to brass models, making it ideal for controlling slightly corrosive fluids, pure water, and chemicals. Its zero-differential pressure design ensures reliable on/off control in low-pressure systems without clogging.

Size Range: DN15-DN50 Pressure Range: 0-10Bar

Thread Standard: G / BSPP / NPT

Voltage: AC/DC 12V/24V110V/220V

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Features

Featuring a rust-proof stainless steel body and direct-acting diaphragm, this valve delivers reliable zero-pressure start capabilities for corrosive media, water, and air in harsh environments.

✅Corrosion-Resistant Stainless Steel Body: Precision-cast from Stainless Steel (SS304 or SS316) to withstand rust, weak acids, and alkalis, ensuring longevity in harsh or chemical environments.

✅Direct-Acting Zero Pressure Start: The direct-lift diaphragm structure allows the valve to operate from 0 bar (0 psi), providing consistent flow control for gravity-fed and vacuum systems.

✅Broad Chemical Compatibility: Unlike brass valves, the stainless steel construction combined with high-quality seals (Viton/EPDM) allows for safe handling of aggressive media and pure liquids.

✅Normally Closed On/Off Control: Operates as a standard normally closed (NC) valve, providing essential start/stop control for fluid lines and fail-safe operation upon power loss.

✅Robust & Weatherproof Design: The rugged metal body resists oxidation and external damage, making it suitable for installation in damp, outdoor, or corrosive industrial atmospheres.