JP3149070U - Pipe end closing device jig for pressure test of piping - Google Patents

Abstract

[PROBLEMS] To easily attach a pipe for pressure test to the end of a pipe, to ensure the accuracy of closing and sealing, to be easily removed and to be used repeatedly, and to be able to install integrated pipes simultaneously in parallel. Provides compact tube closing jig for pressure test. A jig for mounting a closed end of a pressure-resistant test tube for the purpose of closing the pipe end, characterized by a pipe chuck divided into three parts, a flange for pressing the pipe chuck, and a pipe end closing flange provided with packing It is a jig. [Selection] Figure 1

Description

The present invention relates to a pipe end closing device jig for pressure resistance (eg, water pressure) test of piping work.

Conventionally, when a pressure test is performed, a closing plate 14 is welded to the tube end of the pressure test tube 13 as shown in FIG. 3A, and a seat plate is attached to the tube end of the pressure test tube 15 as shown in FIG. 16 and the screw socket 17 are welded, and as shown in FIG. 3c, a seated screw socket is welded to the pressure test tube 18 to close and seal it, and a pressurization (example: water pressure) test is performed. It was cut off and finished.

Disclosure of prior art documents

[Japanese Utility Model Publication No. 5-57593]

The pressure test tube can be easily attached to the tube end and has a tight sealing accuracy.
Furthermore, it is to provide as a compact type that can be installed in parallel in individual integrated piping.

The present invention is (1) a jig that is mounted for the purpose of closing a released pipe end of a pressure test pipe, and is characterized by a pipe flange, a flange that presses the pipe chuck, and a closing flange that has a packing (2) The pipe chuck is divided into three parts, and has fine irregularities inside. The pressing flange side has a tapered surface, and comprises the tube end closing jig for pressure test as described in (1).

When attaching a pressure test tube end closing jig to a pressure test tube by welding, it takes a lot of time to prepare the power source and welding equipment, remove the weld after finishing the test, and finish the trace. In addition, in integrated piping, it is an extremely difficult operation between adjacent pipes. By using this devised jig, the pressure test tube can be easily mounted in a short time without pressure welding test tube welding, welding test can be performed, and the jig can be removed without reducing the materials and work time. Is comprehensively efficient.

In FIG. 1, pipe chuck 2 chuck spring 3 push flange 4. Push flange 5 Flange spring 6 Nut 7. A jig composed of a bolt 8 is inserted and a nut 7 is tightened to close the push flange 4 and the push flange 5, and the three-part pipe chuck 2 is contracted and fixed to the pressure test tube 1. Hold the flange 9 against the pipe end and pressurize the nut 10 from the pressure joint 12 (example: water pressure) and perform a pressure test test. After the test inspection is completed, the fixing procedure is reversed and the chuck spring 3 and the flange spring 6 are connected. The jig is released and removed from the pressure test tube 1 due to the generating effect.

The pipe chuck 2 divided into three in the pressure test tube 1 in FIG. 2 is contracted and fixed by the pressing flange 4 facing each other.
After the test is completed, the reverse procedure of the fixing procedure is performed, and a springing effect is generated in the chuck spring 3 to release it from the pressure test tube.

Structural sectional view showing an embodiment of the present invention Sectional drawing in the AA line of FIG. Explanatory drawing showing the conventional method

Explanation of symbols

In FIG. 1 1 Pressure test tube 2 Pipe chuck 3 Chuck spring 4 Push flange 5 Push flange 6 Flange spring 7 Nut 8 Bolt 9 Closing flange 10 Nut 11 Packing 12 Pressurizing joint In FIG. 2 1 Pressure test tube 2 Pipe chuck 3 Chuck spring 4 Push flange In FIG. 3 a 13 Pressure test tube 14 Closing plate b 15 Pressure test tube 16 Seat plate 17 Screw socket c 18 Pressure test tube 19 Screw socket with seat

Claims (2)

A jig for mounting a pressure test tube for the purpose of closing one end of the tube, which comprises a pipe chuck, a flange for pressing the pipe chuck, and a closing flange having a packing. 2. The pressure test tube closing jig according to claim 1, wherein the pipe chuck is divided into three parts, and has a fine unevenness on a pressure test tube contact surface and a tapered surface on a push flange side.

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