Check Valves

Unique, externally adjustable, and wear compensating, this screwed bonnet-type needle valve offers a long and trouble-free service life in most liquid or gas applications.

Particularly suitable for applications in instrumentation and control panels to open and close circuits or isolate gauges, this quick opening valve offers a unique design for full-closed to full-open operation with a 60° turn of the knob.

With dependable leak and bubble-tight options, this valve provides free flow in one direction and shut-off in the opposite direction. Encapsulated ball virtually eliminates flutter yet provides a positive check.

Compact and featuring a one-piece body, this adjustable check valve is factory-tested for leakage, crack, and reseal performance. Ideally suited for oxygen service applications, this valve also features a fully retained O-Ring seal.

Designed with a free-floating O-ring for improved tolerance to particular contaminations, this high-flow, zero-leak, low-pressure check valve is suitable for fluid and gas applications. With metal-to-metal positive stops in both the open and checked position, this valve protects the O-ring and spring from over-stress fatigue.

Use these high-pressure poppet check valves in the most demanding applications, such as medical devices, products optimized for cryogenic applications, and severe service designs.

Designed with an integral bonnet, this forged needle valve features a PTFE and metallic wafer stem packing, which provides long-life and leak-tight service from vacuum to the maximum operating pressure.