Self-Closing Sample Valves


Self-closing Sampling Valves are designed to allow safe and quick sampling of volatile liquids under pressure on process lines, storage tanks or pressure vessels. Depressing the manual lever releases a spring-assisted plunger to draw off liquid. Releasing the lever reseats the Viton or Teflon seal against the valves machined seating surface. Standard sampling valves are 316 stainless steel. Flow reducers available upon request.

Greenwood Valve Catalog





Size: 1/2 in. and 3/4 in. NPT
Pressure: ASME 300psi
Overall Length: 4 in.
Overall Weight: 2 lbs.



Self Closing Sample Valves


No. Part
1 Body (3/4 in)
2 Stem
3 Valve Guide
4 Spring Cap
5 Lever
6 Lever Pivot
7 Spring
8 O-Ring
9 Spring Cap Gasket
10 Seal


Self Closing Sample Valves Installation


Self Closing Sample Valves Installation