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Parallel type double-gate gate valve

A double gate, parallel technology, applied in the direction of sliding valves, valve devices, engine components, etc., can solve the problems of troublesome maintenance and disassembly, many sealing parts, high processing precision, etc., and achieve material saving, good sealing performance and low cost Effect

Inactive Publication Date: 2015-09-09
YINGKOU ESWEITE VALVE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This structure has many sealing parts, high processing precision, large opening and closing torque, labor and materials, and troublesome maintenance and disassembly.

Method used

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  • Parallel type double-gate gate valve
  • Parallel type double-gate gate valve
  • Parallel type double-gate gate valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] Embodiment, with reference to the accompanying drawings, a parallel double gate valve includes a handwheel 17 fixed with a round nut 18 on the upper end of the stem nut 14, and a flat key 19 is fixedly connected between the stem nut 14 and the handwheel 17 , the strut flange 16 is fixed on the valve cover 11 with four columns 22, the packing pressure sleeve 27 is equipped with a packing pressure plate 26, the packing pressure plate 26 is fixedly connected with the valve cover 11 with the pressure plate stud 12 and the pressure plate nut 13, the valve cover A gasket 8 is installed between 11 and the valve body 1, which are connected by bolts. Valve stem 7 upper ends are threadedly connected with valve stem nut 14, and the upper and lower shoulders of valve stem nut 14 are equipped with thrust bearing 15, and bearing gland 20 is housed above thrust bearing 15. Both the packing 28 and the packing pad 29 are installed in the stuffing box provided on the valve cover 11, and ...

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Abstract

The invention belongs to a parallel type double-gate gate valve. The parallel type double-gate gate valve comprises a hand wheel (17) which is fixed at the upper end of a valve rod nut (14) through a circular nut (18). The parallel type double-gate gate valve is characterized in that a valve rod (7) is connected with a hinge frame (6); the hinge frame (6) is connected with a first hinge arm (5) through a second hinge arm (33); the first hinge arm (5) is connected with each gate (3) through a first hinge pin (4); the first hinge arm (5) and the hinge frame (6) are arranged in a gate frame (34) to form a closed part; a spring is arranged between the gate frame (34) and the valve rod (7). According to the parallel type double-gate gate valve, the sealing performance is good, the double-sided forced sealing is achieved, the leakage is not produced, the sealing surface is free of friction loss and abrasion, materials are saved, the cost is low, the detachment and installation and the maintenance are convenient and rapid, the operation torque is small, and the opening and the closing are flexible.

Description

Technical field [0001] The present invention belongs to the valve and specially involves a parallel dual -gate gate valve. Background technique [0002] Valves are components that restrained the flow and pressure of flowing fluids in the tube.Different from the purpose of the application, it is divided into cut -off valves and adjustment valves.The cut -off valve is used for cutting the fluid flow, and usually there are gate valves, cut -off valves, and ball valves.The two ends of the valve body of the truncant valve are fluid entrances and exit. Entering or starting is usually flange or welded, and small -caliber can also be welded for inheritance.The valve body usually sets up a sealing valve seat in the upper part of the horizontal center line. The sealing parts in the upper part of the valve seat are valve petals, the upper part of the valve petals is connected to the valve stem.When the upper part of the valve stem is connected to the hand wheel, when the handwheel is rotate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K3/18
CPCF16K3/182
Inventor 陈玉国张睿
Owner YINGKOU ESWEITE VALVE CO LTD
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