With a 316 stainless steel body for exceptional corrosion resistance, these valves are often used in wet conditions and harsh environments. They spring fully open at the set pressure and remain open until the system pressure is restored below the set pressure. All meet ASME Code Section VIII for use with air and inert gas pressure vessels. Attach a drain line to the threaded relief port for remote discharge.

To Order: Please specify medium (air or inert gas) and set pressure (from 150 to 2,700 psi for valves with 1/2 or 1 inlet pipe size, or 150 to 2,269 psi for valves with 3/4 inlet pipe size).

Design a valve specifically for your process media and set pressure. Choose from a valve for air, inert gas, water, hydraulic oil, fuel oil, gasoline, or diesel fuel and a set pressure from 150 to 3,300 psi. These valves begin opening at the set pressure and fully open at about 10% over the set pressure. They begin closing as pressure drops and fully close when the system pressure is restored below the set pressure. Body is 316 stainless steel for exceptional corrosion resistance.

To Order: Please specify medium and a set pressure from the range listed in the table.

Regulate air, gas, liquid, and steam pressure on food, beverage, and pharmaceutical lines with these valves—they’re 3-A certified to meet sanitary design standards. Attach them to your line to reduce a high, variable inlet pressure to a lower, stable outlet pressure.

Twist the T-handle on top of the valve to adjust the outlet pressure. When the valve is closed, a seal on the outlet prevents leaks and helps maintain consistent pressure. These valves meet ANSI Class III, which means a maximum of 0.1% of fluid, gas, or air can escape while they are fully closed. The spring and valve mechanism are sealed behind the diaphragm, so contaminants can’t enter. Both the diaphragm and seals are made from EPDM, which holds up to water, detergents, chemicals, and steam. They’re also FDA compliant for direct contact with food.

Made of 316 stainless steel, these valves won’t corrode from frequent washdowns with harsh cleaners. They connect to your line with quick-clamp sanitary fittings, also known as tri-clamp connections, which are easier to remove and sanitize than threaded connections. The polished interior is extremely smooth, so there’s nowhere for bacteria to hide. They’re also self-draining, so liquids drain completely and don’t contaminate your line. Keep these valves open during clean-in-place (CIP) cycles with a locking pin.

For technical drawings and 3-D models, click on a part number.