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Gene McGovern and Engineering Manager Don Morin go over a valve drawing to make sure the valves are up to CPV standards.

CPV valves measure up to the highest standards in the industry ... our own.

Since 1915, CPV has built a reputation based on reliability and leakproof assurance. In turn, that reputation has built the company. No small feat when you consider the demanding applications where CPV valves are at work around the world. Since the beginning, we have found that the best way to achieve the valve-to-valve performance consistency and long term durability our customers demand is to make sure each and every CPV valve is thoroughly inspected and bench tested before shipment.

Liquid Service
The CPV Quality Assurance Program requires that all valves specified for liquid service must be tested to 1 1/2 times the rated pressure. When a customer orders a valve rated for 6000 psi, CPV hydrostatically bench tests it to 9000 psi in both open and closed positions. In order to be certified leakproof, there must be no indication of leakage. In addition, every hand-operated valve is checked against established standards in both seating and running torque.

Gas Service
CPV inspects all valves designated for gas service with a bubble test that uses nitrogen at the rated pressure. While the valve is at test pressure the outside surfaces are coated with a special fluid that forms bubbles when there is even the smallest leak.

As with CPV’s liquid service valves, every hand operated gas service valve is checked against established standards in both seating and running torque. Once again, to be certified leakproof, there must be no indication of leakage. For customers with applications involving elusive gases such as helium, CPV will test with those gases upon request.

CPV relief valves are tested and set using nitrogen. After the valve has been set, pressure is increased until “blow off” is achieved. The “re-seat” pressure is then checked to make sure it is no more than 7% off the set pressure.

Quality assurance backed by quality experience.
All CPV bench testing is conducted by our Test Department headed by Gene McGovern in close coordination with Engineering Manager Don Morin. Gene has been with CPV for 27 years; Don has been with us for 40 years. Testing and quality assurance are as important to us here at CPV as they are to customers who put our products to work in their process. That’s why we make sure the people in charge are as reliable as the products we manufacture.

For more information or technical literature on O-Seal valves or other CPV Valves & Fittings contact:
Charles J. Horter
Sales and Marketing Manager
CPV Manufacturing, Inc.
851 Preston Street,
Philadelphia, PA 19104–1598
Phone: (215) 386-6508, ext.244
Toll free: (888) 386-2211
Fax: (215) 387-9043