Test plug assembly and method for pressure testing the inlet con

Details Test plug assembly and method for pressure testing the inlet con Test plug assembly and method for pressure testing the inlet con

1977-02-28

1978-10-31

Mehr, Milton S.

Metal working

Method of mechanical manufacture

During simulated operation or operating conditions

138 90, 73 405R, 29407, F16L 5510, G01M 304

Patent

active

041225929

ABSTRACT:
A test plug assembly for insertion into a housing for preventing liquid under pressure from flowing therethrough includes an assembly body with an undersurface shaped and dimensioned to mate with a shaped upper portion of the housing. A plurality of flanges which project from the outer surface of the body are located and spaced apart so that the studs can pass between the flanges when the body is inserted into the housing and so that the uppermost surface of the flanges will engage the lowermost surface of the studs when the shaped upper portion and undersurface are in contact and the body is rotated relative to the housing. The body further includes a gripper for gripping the body so it can be rotated into engagement with the housing.
A method of pressure testing a fitting for a liquid inlet includes the steps of installing an inlet fitting on a pipe which is located beneath the underwater surface and which communicates with a source of liquid under pressure, mounting a liquid jet housing on the fitting by forming a leak proof connection between the fitting and housing, inserting a removable plug into the housing which is capable of preventing liquid from passing through the housing at a testing pressure, introducing liquid at a testing pressure into the housing through the inlet fitting, and replacing the removable plug with the housing's normal internal assembly.

REFERENCES:
patent: 2749945 (1956-06-01), Kaiser
patent: 2974685 (1961-03-01), Ver Nooy
patent: 3326243 (1967-06-01), Augustus
patent: 3448773 (1969-06-01), Bindernagel et al.

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