NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Cold Installation of Elastomeric Valve SeatA method is provided for installing a valve seat in the hole of a valve element. The valve seat is fabricated from a seal material having a freezing temperature. The seal material is stretched such that a portion thereof has a reduced diameter that is less than the diameter of the valve element's hole. The stretched portion of the seal material is immersed in a first environment having a temperature that is less than the freezing temperature of the seal material to thereby freeze the stretched portion and fix its reduced diameter. The stretched and frozen portion is then placed in the valve element's hole with the combination then being placed in a second environment having a temperature that is greater than the freezing temperature of the seal material.
Document ID
20190000807
Acquisition Source
Headquarters
Document Type
Other - Patent
Authors
Richard, James A.
Addona, Brad M.
Date Acquired
February 15, 2019
Publication Date
February 5, 2019
Subject Category
Mechanical Engineering
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
US-Patent-10,197,165
Patent Application
US-Patent-Appl-SN-15/014,615
No Preview Available