Patent ID: 9371926
Filing Date: 2016-06-21
CPC Classification: F16K,Y10T

Claim Text:
1. A method for assembling a pressure relief valve, comprising: fitting a seat for receiving a poppet into a singular body; inserting the poppet and a spring into the singular body; and fitting a stationary shim into the singular body for holding an end of the spring stationary with respect to the singular body, wherein the seat is fit into the singular body for receiving the poppet; and fitting a retainer into the singular body to support the stationary shim, wherein the seat includes a non-threaded stepped region on its outer surface and the singular body includes a complementary stepped region on its inner surface such that when the seat is fit into the singular body, the stepped region of the seat and the complementary stepped region of the singular body interface with each other to prevent movement of the seat toward the spring; wherein the seat is interference fit into the singular body, the diameter of the seat being larger than an inner diameter of the singular body, and wherein the singular body is temporarily expanded with heat prior to interference fitting the seat into the singular body, such that after the singular body returns to the cooled state, the seat is too large to be dislodged from the singular body.