Integral double flange combined ball needle valve

A one-piece, double-flange technology, applied to valve details, multi-way valves, valve devices, etc., to reduce potential leakage points, save manufacturing costs, and compact overall structure

Inactive Publication Date: 2008-09-17
金进星
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide an integrated double-flange combination ball needle valve with compact struc

Method used

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  • Integral double flange combined ball needle valve
  • Integral double flange combined ball needle valve

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Embodiment Construction

[0011] In the embodiment shown in Figures 1 and 2, the integrated double-flange combined ball needle valve of the present invention includes a valve body 3. The valve body 3 is connected to the pipeline by an integrated flange at both ends, and is integrally formed by a forging. The valve body 3 The first ball valve 17 and the second ball valve 18 are arranged on the top, the balls 2 of the two ball valves 17, 18 are placed in the valve body 3, the first ball valve 17 is connected with the first flange end cover 1 installed on the left side of the valve body 3, The second ball valve is connected with the second flange end cover 5 installed on the right side of the valve body 3. The middle position of the two ball valves 17 and 18 of the valve body 3 is provided with an instrument needle valve 16, and the lower end of the valve body 3 is a plug device 15. 1 / 2"NPT internal thread relief port 19. The ball 2 is sealed with the first flange end cover 1 and the second flange end cove...

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Abstract

An integrated double-flange combined ball needle valve comprises a valve body. Flanges on the two ends of the integrated valve is connected with a pipeline, two straight-through ball valves are arranged on the valve body, the ball bodies of the two ball valves is placed in the valve body, the first ball valve is connected with a first flange end cover installed on the left of the valve body, the second ball valve is connected with a second flange end cover installed on the right of the valve body, a meter needle valve is arranged in the middle position of the two ball valves of the valve body, and the lower end of the valve body is a discharge port. A medium enters the first ball valve from the inlet of the first flange end cover, the meter needle valve and a plug take the effects of discharging, sampling, measuring pressure, shunting and configuring a converter, the first ball valve is a main stop valve, and the second ball valve can stop and reverse flow, and enable a pressure meter to reset to zero for a secondary medium. The combined ball needle valve has double stopping double discharging functions, and is suitable for pipeline devices with the functions of stopping, adjusting, discharging, sampling and so on.

Description

technical field [0001] The invention relates to a high-pressure pipeline valve, in particular to a double-flange end valve integrating a ball valve and a needle valve. Background technique [0002] Double cut-off double discharge valve integrates chemical injection, flow control, pressure control, sampling and other functions, and is an indispensable and important product for high-pressure pipeline installations. Double cut-off and double discharge valves include ball valves, needle valves (instrument needle valves), etc. Ball valves have the functions of medium cut-off, reverse flow, and pressure gauge return to zero. . Among the existing high-pressure pipeline valves, the ball valve and the needle valve have a separate structure, which has defects such as loose structure, complex assembly process, many potential leakage points, and high production cost. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an integ...

Claims

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Application Information

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IPC IPC(8): F16K11/22F16K43/00F16K27/00F16K31/60F16K41/02G01N1/10F17D3/01F17D3/10
Inventor 金进星李国标
Owner 金进星
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