Pressure regulator for water blasting

Details Pressure regulator for water blasting Pressure regulator for water blasting

1993-12-16

1995-05-30

Hepperle, Stephen M.

Fluid handling

Removable valve head and seat unit

Retained by bonnet or closure

137509, 137115, F16K 1704

Patent

active

054193656

ABSTRACT:
A regulator for a high pressure water blast system includes a body which houses a replaceable valve cartridge that includes a tubular seat member and an axially slidable valve element. The valve element is biased toward closed position by an adjusting knob that houses a spring-loaded plunger which engages the valve element. The seat member is hydraulically biased against a stop shoulder and the valve element is hydraulically biased toward the adjusting knob. The design of bias areas and spring rates is such that the adjusting knob can be easily operated by hand. The seat member and valve element provide a replaceable cartridge assembly so that all wear parts can be replaced, when needed, in the field.

REFERENCES:
patent: 2578795 (1951-12-01), Gardiner et al.
patent: 3406912 (1968-10-01), Claffey
patent: 4192346 (1980-03-01), Iizumi
patent: 4401264 (1983-08-01), Williams et al.
patent: 4653527 (1987-03-01), Kosarzecki
patent: 4901978 (1990-02-01), Feild

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