Mechanism including two cut-off devices in series

Details Mechanism including two cut-off devices in series Mechanism including two cut-off devices in series

1980-03-10

1981-07-07

Schwadron, Martin P.

Fluid handling

Systems

Flow path with serial valves and/or closures

415151, F16K 500, F03B 100

Patent

active

042769051

ABSTRACT:
A mechanism for a hydraulic pipe comprises two rotatable cut-off devices in series arranged inside two half-shells which are arranged symmetrically, relative to a mean transverse plane, and which are connected by being bolted together by their flanges. Each half-shell supports the journals of a cut-off device and an intermediate piece may be provided for supporting center gaskets.
The mechanism is particularly applicable to the protection of turbines in a high-fall hydroelectric installation.

REFERENCES:
patent: 415561 (1889-11-01), Ridgway
patent: 990590 (1911-04-01), Ray
patent: 2512999 (1950-06-01), Bruning
patent: 2919144 (1959-12-01), Lindenmeyer
patent: 3474829 (1969-10-01), Scheineman
patent: 3528447 (1970-09-01), Kolb
patent: 3913603 (1975-10-01), Torres
patent: 4004611 (1977-01-01), Friedell
patent: 4056117 (1977-11-01), Deeks
patent: 4090524 (1978-05-01), Allread et al.

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