Fluid handling – With leakage or drip collecting
Patent
1981-09-14
1984-09-04
Walton, George L.
Fluid handling
With leakage or drip collecting
137315, 13732901, 1374545, 1375278, 248 62, 251143, 251298, 285 61, 285 89, 285212, 285330, 285354, F16K 1500, F16K 4300
Patent
active
044691220
ABSTRACT:
A fluid check valve having a cylindrical tubular body member which is symmetrical and is adapted to receive a pair of opposed head members which have suitable coupling ends formed thereon. The head members may be threaded on to the body or secured to the body with pins that prevent transmission of uncoupling torque to head retaining nuts engaged with the body. A valve closure disc is mounted on a removable support ring retained in a counterbore formed in the valve body by one of the head members. A valve seat surface may be integrally formed on a transverse face of one or both of the head members or may be provided as a separate seat insert threadedly mounted on the head members. The head members may be interchanged to accommodate particular coupling arrangements. The seat surface on the downstream head member is protected by a removable wear ring, or a removable wear ring insert is mounted in the head member in place of the seat insert.
REFERENCES:
patent: 1275697 (1918-08-01), Joyce
patent: 1453978 (1923-05-01), Holmberg
patent: 1536869 (1925-05-01), Kizer
patent: 1772086 (1930-08-01), Porter
patent: 1819754 (1931-08-01), Mott
patent: 2323099 (1943-06-01), Patten
patent: 2333243 (1943-11-01), Glab
patent: 2454072 (1948-11-01), Long
patent: 2610028 (1952-09-01), Smith
patent: 2960353 (1960-11-01), Woodling
patent: 3198555 (1965-08-01), Johnson et al.
Prince Valve, Inc.
Walton George L.
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