Check Valves

Compact, highly accurate, and direct-acting, this vent relief valve is factory preset to desired crack pressure and/or flow specifications. With a quad ring seal, this valve provides for extreme accuracy as well as repeatability with a narrow reseal band.

Compact and highly accurate, this vent relief valve is factory preset to desired crack pressure and/or flow specifications. With an internal adjustment, this valve provides tamper-proof safety against inadvertent pressure changes and features an encapsulated O-ring seal to prevent extrusion at higher differential pressures.

Compact, highly accurate, and direct-acting, this vent relief valve is factory preset to desired crack pressure and/or flow specifications. With a quad ring seal, this valve provides for extreme accuracy as well as repeatability with a narrow reseal band.

Designed for low torque, quarter turn, and positive shut-off of forward-flow up to 3000 psig (207 bar), this shut-off valve seals with a standard elastomeric O-ring seal. With a one-piece body construction, this shut-off valve also features a machined metallic replaceable plug stem.

Designed with a brass body construction, this pressure regulator and control valve features a maximum inlet pressure of 400 psi, a spring reference, as well as a fully balanced internally piloted relieving regulator. Quick-acting, its 180° adjustment knob sets outlet pressure from 0 to full line pressure.

Built for accurate and repeatable flow control of fluids and gases, these precision metering valves feature a one-piece forged body and a screwed bonnet design. With standard panel mounting and lockable adjustments, these valves offer precise metering solutions.

Suitable for both gas and liquid applications, this poppet check valve features a fully retained O-ring seal design that permits full-rated pressure in the checked direction. With a metal-to-metal positive stop, this valve provides a trouble-free service life in the most demanding applications.

Compact with a fully retained O-ring seal, this one-piece check valve is poppet type and suitable for working pressures to 3000 psig. Also, this valve is 100% factory tested and available cleaned and packaged for oxygen service.

With seat and poppet geometry combined with optimized spring ranges, this industrial relief valve provides high flow rates with minimum pressure accumulation. Relief pressure can be discharged to the atmosphere or a downstream connection.

With a metal-to-metal positive stop, this direct-acting inline check valve ensures a long service life and is suitable for pressure and vacuum applications. Bubble tight sealing is achieved by a line of contact between a seat and a standard elastomer O-ring with minimum differential pressure, regardless of mounting attitude.

Reliably built to operate with a low operation torque while providing a long service life, this instrument ball valve offers a micro-finished floating ball design, which provides a positive seal in both directions. Also featured is a straight-through flow path, ensuring high-flows with minimum pressure drop.