AirTAC 2WA Series: Stainless Steel Internally Piloted Normally Closed (NC) Valve

The AirTAC 2WA Series is a heavy-duty, 2/2-way internally piloted solenoid valve designed for high-temperature steam and fluid control. Featuring a 304 Stainless Steel body and specialized PTFE (Teflon) seals, the 2WA series is the reinforced version of the standard 2W series, specifically engineered to withstand the thermal expansion and corrosive nature of industrial steam systems.

As a Normally Closed (NC) valve, it blocks flow in its de-energized state. Its internally piloted mechanism uses the pressure of the fluid to assist in lifting the piston, allowing it to control large pipe diameters (up to 2") with high precision and low electrical power consumption.

Key Product Features

• High-Temperature Specialized: Rated to handle Steam up to 183°C and hot water or thermal oil up to 150°C.

• SUS304 Stainless Steel Body: Provides exceptional structural integrity and resistance to oxidation, ensuring the valve does not degrade under constant exposure to high-pressure steam.

• Standard PTFE (Teflon) Seals: Offers superior chemical compatibility and prevents the seal from becoming "gummy" or brittle under intense heat.

• Normally Closed (NC) Safety: Automatically shuts off fluid or steam flow during a power failure, acting as a critical safety barrier for boilers and sterilization equipment.

• Pilot-Operated High Flow: Capable of managing large orifices and high flow coefficients ($Cv$) by leveraging system pressure to actuate the internal piston.

• Class H High-Heat Coil: Comes standard with a Class H insulated coil, specifically designed to resist the high ambient temperatures transferred from the steam line.