Slide, particularly pipe bridge slide

Details Slide, particularly pipe bridge slide Slide, particularly pipe bridge slide

1997-03-18

1999-07-27

Reichard, Lynne

Valves and valve actuation

With means to increase head and seat contact pressure

Gate valve

251195, 277618, F16K 2500

Patent

active

059276843

ABSTRACT:
Single-plate slide, especially single-plate pipe bridge slide (10) with a slide-plate (16) and if necessary a pipe bridge (20), which is or are movable by means of an actuating device (18, 19) within this casing (11) in order to close or open a fluid passage (17) formed in a casing (11), the slide plate (16) or pipe bridge (20) having lateral seal surfaces which correspond with seal surfaces located on the casing side, especially annular seal surfaces (14, 15). At least one of the seal surfaces (14, 15) on the casing side forms part of a seal ring (23) located in the casing (11), which abuts with resilient pre-stressing on the facing seal surface of the slide plate (16) or pipe bridge (20).

REFERENCES:
patent: 3013769 (1961-12-01), Volpin
patent: 3293342 (1966-12-01), Grove
patent: 4286614 (1981-09-01), Kacal et al.
patent: 4320890 (1982-03-01), Meyer et al.
patent: 5366199 (1994-11-01), Isoyama

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