Greenwood Valves

Solves toughest pipeline and storage challenges

The Performance is in the Valve


Over sixty-five years of continuous service to the oil, gas and energy industries testifies to Greenwood Valve’s distinguished tradition of design innovation and customer satisfaction. Greenwood Valve’s engineers and skilled craftsmen turn concepts into finished products to meet the rigorous requirements of an ever-changing industry. New technologies meet new applications under the watchful supervision of professional engineers. 

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Greenwood Valves -WearTech

Quick Closing Valves


Quick Closing Valves

Greenwood Quick Closing Valves consist of a WCB-grade cast carbon steel body, 316 stainless steel trim, 17-4PH shaft material, and graphite cover gasket and shaft packing. These sturdy safety valves protect pipelines and storage facilities in refineries, LPG, chemical, cement and power plants, shipyards, pumping stations, tank farms and rail loading and unloading facilities throughout the world. As a secondary measure, Greenwood Valves provide isolation until primary emergency valves are reset and system safety is restored.

Self-Closing Valves


Self-Closing Valves

Self-closing Sampling Valves are safety valves 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 resets the Viton or Teflon seal against the valve's machined seating surface. Standard sampling valves are 316 stainless steel. Flow reducers available upon request.

Automatic Drain Valves


Automatic Drain Valves

Automatic Drain Valves prevent the accumulation of fluids, condensation or contaminants in fire lines, standpipes and other pipelines. When the system is unpressurized, the internal spring tension exceeds the expected static head, and the valve opens. This safety valve allows fluids to escape, and reduces the danger of line freezing, rupture and corrosion. When line pressure is applied, the valve automatically closes and stops the flow. All components are brass except the stainless steel Viton covered stem.

Bolted Line Blind Valves


Bolted Line Blind Valves

Greenwood Quick Closing Valves consist of a WCB-grade cast carbon steel body, 316 stainless steel trim, 17-4PH shaft material and graphite cover gasket and shaft packing.

Line Blind Union Valves


Line Blind Union Valves

Operating on the principle of a conventional threaded line union, the Line Blind Union offers a simple and time-saving means of obtaining positive leak-proof shutoff. Common applications include compressor air and fuel lines, boiler and heater burner manifolds, storage tank foam lines and steam systems. Line Blind Unions employ a reversible figure-B spectacle plate with O-rings to insure fully open and fully closed lines. A specially designed safety-slot is incorporated in the stationary seat to prevent spectacle blow-out. Simply loosen the nut to spread the seats, end-to-end the spectacle, and then re-tighten the nut to draw the seats together. O-ring seals on machined spectacles provide a positive seal against leakage.

Greenwood Valve

The Fail-Safe Choice For Over 65 years

Over sixty-five years of continuous service to the oil, gas and energy industries testifies to Greenwood Valve’s distinguished tradition of design innovation and customer satisfaction. Greenwood Valve’s engineers and skilled craftsmen turn concepts into finished products to meet the rigorous requirements of an ever-changing industry. New technologies meet new applications under the watchful supervision of professional engineers. Well versed in industry standards, codes and expectations, Greenwood Valve’s sales force work with customers to solve the toughest pipeline and storage challenges.

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