Means to retain a valve stem

Details Means to retain a valve stem Means to retain a valve stem

1979-05-29

1981-06-02

Cline, William R.

Valves and valve actuation

Mechanical movement actuator

Particularly packed or sealed

251308, F16K 122

Patent

active

042707307

ABSTRACT:
A retaining device to hold a butterfly valve stem (26) in the valve body upon a shearing or breaking of the stem. The retaining device is mounted within a bore (38) in the valve body (12) beneath the stem packing and includes pins (44) extending from the stem (26) which engage in abutting relation a support ring (64) mounted in a groove (56) in the bore to restrain any outward movement of the stem.

REFERENCES:
patent: 3038693 (1962-06-01), Dumm
patent: 3334862 (1967-08-01), Hookway, Jr.
patent: 3480253 (1969-11-01), Priese et al.
patent: 3591133 (1971-07-01), Miles et al.
patent: 3606980 (1971-09-01), Simpson et al.

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