Kerotest Manufacturing Corp.

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Pittsburgh, PA  |  412-521-4200

KEROTEST VALVES are among the best you can buy anywhere in the world. As an Employee Stock Ownership Plan (ESOP) company, we don’t just talk about quality, we produce it, because everyone here is empowered to give you the best product, the best value and the best service. Kerotest Manufacturing Corp. is a leading supplier of valves and related equipment to the worldwide energy markets, including natural gas distribution, oil & gas drilling, nuclear fuel, and the municipal water market. Established in PITTSBURGH, PENNSYLVANIA in 1909, our headquarters remains here along with our product development, engineering, manufacturing and customer service operations. In 1989, we opened a strategically located manufacturing facility in MANSURA, LOUISIANA for the production of Kerotest instrumentation valves and polyethylene ball valves. The location gives us ready access to our customers throughout the United States. 2019 will bring further expansion in Mansura with the introduction of a 30,000 square foot state-of-the-art development, manufacturing and testing facility. As our nation’s energy distribution networks continue to require repairs, upgrades and expansions, trust Kerotest to continue manufacturing the valves and equipment that meet those needs.

Ball Valves Power Pages

Ball Valves

Ball Valves

A ball valve is a shut-off valve that allows or obstructs the flow of liquids and gases in a piping system by rotating the ball having a bore inside the valve for 90°. The ball is mounted against two seats and has a stem that connects it to the operating and control mechanism that rotates the ball...

PVC Ball Valves

PVC Ball Valves

A PVC or polyvinyl chloride ball valve is a plastic on and off valve that has a rotary ball with a bore where turning the ball a quarter turn can stop the flow of a fluid. They are highly durable, cost effective and can be...

Butterfly Valves

Butterfly Valves

A butterfly valve is a quarter-turn rotational motion device that utilizes a rotary disc to allow, obstruct, or control the flow of fluids in a piping system. It features a rotating disc that is situated on the passageway of the flowing media...

Check Valves

Check Valves

A check valve is a safety device designed to allow fluids and gases to flow in one direction. Under pressure, fluids enter the valve at the inlet and exit through the outlet. Uninterrupted flow continues until the pressure drops, or the pump is shut down...

Diaphragm Valves

Diaphragm Valves

Diaphragm valves utilize a flexible diaphragm to obstruct, control, or isolate the flow of fluids. The diaphragm acts as the flow control element that flexes up or down to increase or decrease the fluid flow rate, respectively...

Spring vs. Swing Check Valves

Spring vs. Swing Check Valves

A spring check valve is a valve that ensures unidirectional flow and prevents reverse flow. They have a single inlet and outlet and must be placed in proper orientation to function correctly. On the side of a spring check valve, and all...

Pumps & Valves

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