Check valve

Details Check valve Check valve

1979-03-19

1981-03-17

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

With separate connected fluid reactor surface

13751629, 137538, F16K 1502

Patent

active

042561370

ABSTRACT:
A check valve for use in a flow line has a valve body which includes a first portion with an inlet and an outlet, the inlet and outlet being substantially aligned with one another. The valve body further includes a second portion with tubular member having an longitudinal passage for receiving fluid from the inlet passage with outlet ports extending radially from the longitudinal passage and with a flange member extending annularly around tubular member. A plunger is mounted with the valve body for preventing fluid flow through the outlet ports and includes a plug mounted with the tubular member in its longitudinal passage to deflect the flow of fluid through the outlet ports and a tubular sleeve circumscribes the tubular member. The spring is mounted with the valve body for urging the plunger toward the inlet passage. The flow of fluid through the valve is checked when the pressure in the inlet passage is insufficient to overcome the urging of the spring.

REFERENCES:
patent: 2655173 (1953-10-01), Overbeke

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