History
In 1991, our company was asked to solve a common problem for field gas wells. The well pressure was 1,000 PSI and the allowable transmission pressure set by the Department of Transportation was 350 PSI.

The pressure from the gas well was reduced through a restriction called a choke valve. If the valve were to "cut out", the pressure to the meter run and to the transmission line would be too high. The conventional solution was to put a relief valve before the meter run and flare the gas from the relief valve. The cost of the relief valve and flare system was somewhere between $3,000.00 to $5,000.00.

There were several disadvantages of this method. It required yearly testing of the relief valve. It also required maintenance of the flare system. There was also costly product loss of the flared gas.

To solve these problems, we proposed a unique shutdown valve that would allow full gas flow to a set pressure of 350 PSI. Once it reached that set pressure, the valve would close. Our closing sensor and actuator was a simple accurate pin that would buckle to allow a piston to move and close the valve seat. Problems with the choke or other cause would be corrected, the buckled pin would be replaced and production would resume immediately.

The results were impressive. There was no product loss, no transmission pressure violation and no air pollution.

Over 5,000 Buckling Pin valves are now in operation for this purpose. Since then, other applications have been found. Our valves are used to protect downstream equipment if a pressure regulator should fail open and also protect downstream pipe to plastic tubing from excess pressure.

99.9% Satisfaction and Proven Safe for the Environment!
Our unique, patented pin technology has been used for over 18 years in thousands of valves around the world with an impressive satisfaction rate of 99.9%! It's also safe for the environment!

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