Modular pressure relief valve
First Claim
1. A pressure relief valve, said valve comprising:
- a valve body;
a serrated valve tube configured to be received by the valve body;
a valve seal carrier held in a desired position on one end of the serrated valve tube;
a spring retainer ring fitted over an outside diameter of the serrated valve tube wherein the spring retainer ring is positioned on a desired location on the serrated valve tube during assembly to set an approximate release pressure for the pressure relief valve; and
a valve spring positioned over the outside diameter of the serrated valve tube such that the valve spring is constrained by the spring retainer ring.
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Accused Products
Abstract
A pressure relief valve having a modular design that allows the release pressure of the valve to be altered during assembly is provided by the present invention. The valve includes a serrated valve tube that fits inside of a valve body. A spring retainer ring fits on an outside diameter of the serrated valve tube such that it is held in position by interacting with the serrations. The release pressure of the valve is altered by changing the position of the spring retainer ring on the serrations. In addition, a variety of different spring types and configurations can be utilized in conjunction with the spring retainer ring position to select one of a large number of different release pressures for the valve during assembly.
16 Citations
19 Claims
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1. A pressure relief valve, said valve comprising:
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a valve body;
a serrated valve tube configured to be received by the valve body;
a valve seal carrier held in a desired position on one end of the serrated valve tube;
a spring retainer ring fitted over an outside diameter of the serrated valve tube wherein the spring retainer ring is positioned on a desired location on the serrated valve tube during assembly to set an approximate release pressure for the pressure relief valve; and
a valve spring positioned over the outside diameter of the serrated valve tube such that the valve spring is constrained by the spring retainer ring. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A pressure valve having a release pressure for controlling the flow of a fluid through a fluid channel:
- said valve comprising;
a valve body having a sealing surface;
a valve tube;
a valve seal mounted on the valve tube;
a spring for creating a force that holds the valve stem against the sealing surface; and
a spring tension selector that allows the force created by the spring to be adjusted, spring tension selector further comprising a spring retainer ring that interacts with a series of serrations positioned on the outside diameter of the valve tube to allow the force created by the spring to be selectively controlled. - View Dependent Claims (11, 12, 13, 14, 15)
- said valve comprising;
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16. A method of setting a release pressure for a pressure relief valve having a valve tube with a predetermined number of serrations during assembly that interacts with a spring retainer ring to apply a spring generated force to a valve seal, said method comprising:
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selecting a desired release pressure;
determining a serration that corresponds to the desired release pressure based upon a prior determined relationship between the serration location and the release pressure of the pressure relief valve; and
positioning the retainer ring on the determined serration.
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17. The method of claim 17 further comprising the step of selecting a spring that will be used to generate the spring force from a set of springs wherein the spring is selected based upon the desired release pressure.
- 18. The method of claim 18 wherein the step of selecting a spring further comprises selecting a spring from a set of springs having different numbers of coils wherein the number of coils selected is based upon the desired release pressure of the pressure relief valve.
Specification