Adjustable valve seat

Details Adjustable valve seat Adjustable valve seat

1974-08-08

1976-01-27

Cline, William R.

Valves and valve actuation

With means to increase head and seat contact pressure

Seat pressed to valve

251192, 251307, 251362, F16K 2500

Patent

active

039348504

ABSTRACT:
A valve, such as a butterfly valve, having an adjustable valve seat. The valve includes a valve body having an interior passage and a valve member journalled in the body for movement between positions opening and closing the passage. The body further includes an inwardly opening groove for receiving a valve seat formed of a flexible material. Also received within the groove is an arcuate structure, the circumference of which can be selectively adjusted. As the circumference is increased, the arcuate structure bears against the valve seat to compress the same and distort a portion thereof into the passage to provide good sealing contact with the valve member.

REFERENCES:
patent: 1364599 (1921-01-01), Wilder
patent: 3144040 (1964-08-01), White

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