Non-return valve for a petrochemical reactor

Details Non-return valve for a petrochemical reactor Non-return valve for a petrochemical reactor

2007-09-04

2007-09-04

Rivell, John (Department: 3753)

Fluid handling

Removable valve head and seat unit

C137S533110

Reexamination Certificate

active

10497314

ABSTRACT:
A rapidly replaceable non-return device (110) for a petrochemical refinery reactor (112), of the type comprising: a support tube (114), connected to a portion of the reactor (112), this support tube (114) being provided internally with a cartridge (116) containing a ball (118), the cartridge (116) having, around an inlet hole (121) for a processed fluid, a seat (122) for housing the ball (118), and having slots (120) for the outflow of the said processed fluid; the cartridge (116) is fitted removably in the support tube (114).

REFERENCES:
patent: 136412 (1873-03-01), Chapman et al.
patent: 139018 (1873-05-01), Morrison
patent: 2192541 (1940-03-01), Davis
patent: 3026903 (1962-03-01), Roach
patent: 4568337 (1986-02-01), Treharne et al.
patent: 4816137 (1989-03-01), Newman et al.
patent: 5095940 (1992-03-01), Saur et al.
patent: 00/61704 (2000-10-01), None

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