Bottom operable tank car lading valve with minimum skid protecti

Details Bottom operable tank car lading valve with minimum skid protecti Bottom operable tank car lading valve with minimum skid protecti

1978-11-08

1979-12-25

Cline, William R.

Valves and valve actuation

With correlated flow path

Tank

251360, 1373825, 137347, 105358, F16K 3500

Patent

active

041802420

ABSTRACT:
In accordance with the present application, a bottom operable tank car valve seat and skid are made in separate pieces. The skid is welded to a skid mounting flange which is located below a tank car universal mounting flange. The skid mounting flange is attached to the universal mounting flange with fasteners. A ring is inserted into a slot provided in the upper, inner surface of the universal flange. Fasteners inserted into existing threaded openings in the universal flange hold the ring in place. A valve seat is mounted on the inner surface of the universal flange and the ring. The ring is held in place with fasteners which extend through the universal flange into the ring. These fasteners also hold in place an operator retainer to maintain the lading valve operator spaced from the walls of the valve seat and vertically fixed. With this arrangement the skid can be removed separately from the outlet. The retainer and the valve operator can be removed separately from the skid, and separately from the lading valve and valve seat with lading in the tank. Furthermore, when the car is empty, the entire assembly other than the universal flange can be disassembled from the bottom without the operator going inside the tank.

REFERENCES:
patent: 1484682 (1924-02-01), Tangerman
patent: 3812791 (1974-05-01), Barnard
patent: 3981481 (1976-09-01), Reedy et al.

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