CN203477333U

CN203477333U - Double-rod shutoff valve

Info

Publication number: CN203477333U
Application number: CN201320580468.3U
Authority: CN
Inventors: 董汉杨
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-09-15
Filing date: 2013-09-15
Publication date: 2014-03-12
Anticipated expiration: 2023-09-15

Abstract

The utility model discloses a double-rod shutoff valve. A set of valve clack is placed into each double-faced symmetrical inner cavity of a valve body, each valve clack is connected with a valve rod through a valve clack pressing sleeve, and each valve rod is fixed on the valve body through a support. A packing seat is arranged in a gap of each support and the corresponding valve rod in a matching mode, packing is filled into each packing seat, and the packing is compressed and sealed through packing glands. The packing glands and the supports are connected through pins and swing bolts and are tightly pressed through nuts, so that a sealing effect is achieved. Valve-stem nuts and nuts are arranged on the upper portions of the valve rods, and hand wheels and nameplates are arranged on the top ends of the valve rods. The hand wheels and the nuts are used for fixing, the double-rod shutoff valve is turned on and turned off through the hand wheels, and the purpose of being convenient to use is achieved. The double-rod shutoff valve has the advantages that one set of valve clack and one set of valve rod are respectively placed into each double-faced symmetrical inner cavity of the valve body, the dual-seal, dual-control and dual-valve-clack design is achieved, the valve can also be used independently, the structure is simple, and the service life is long.

Description

Two bar shutoff valves

Technical field

The utility model relates to a kind of fluid pipeline open and close device that dams, and especially has two bar shutoff valves of double seal, dual control system, Double-clack design.

Background technique

At present, known fluid pipeline valve structure is to be designed by single sealing, single valve clack, single valve bar, owing to installing pipes, open and close more frequent, under the poor condition of hyperbaric environment operating mode, generally shutoff valve line duration is the longest can only use 2 years, will arrange to change, its Performance And Reliability has directly affected safety and the economical operation of equipment, easily causes stop work and production.

Summary of the invention

In order to overcome existing fluid pipeline valve seal poor performance, easy water clock, the technical deficiency that working life is short, the utility model provides a kind of pair of bar shutoff valve, this pair of bar shutoff valve not only has double seal, dual control system, Double-clack design, and can use separately.

The purpose of this utility model is to provide a kind of pair of bar shutoff valve, in valve body double-sided symmetrical inner chamber, respectively insert a set of flap, on flap, utilize disc gland to connect valve rod, valve rod is fixed on valve body with support, support and valve lever clearance adapted Packing seat, above Packing seat, fill up filler, above filler, use Gland press seal, Gland and support utilization pin, swing bolt connection compresses with nut, play seal action, valve rod top is furnished with Stem Mut, nut, top is furnished with handwheel, product inscription, utilize hand wheel nut to fix, two bar shutoff valves utilize handwheel to open, close, reach object easy to use.

The beneficial effects of the utility model are respectively to insert a set of flap, valve rod in valve body double-sided symmetrical inner chamber, have double seal, dual control system, Double-clack design, also can use separately, simple in structure, long service life.

Accompanying drawing explanation:

Below in conjunction with accompanying drawing and example, the utility model is further illustrated:

Fig. 1 is the utility model structural drawing

Support in the drawings, 1, flap, 2, disc gland, 3, valve body, 4, valve rod, 5,, 6, Packing seat, 7, pin, 8, filler, 9, Gland, 10, swing bolt, 11, bolt and nut, 12, Stem Mut, 13, nut, 14, handwheel, 15, product inscription, 16, hand wheel nut.

Embodiment:

In Fig. 1, the two-sided inner chamber symmetry of valve body 3 is respectively inserted a set of flap 1, flap 1 utilizes disc gland 2 to connect valve rod 4 above, valve rod 4 utilizes support 5 fixedly on upper valve body 3, Packing seat 6 for gap between valve rod 4 and support 5, and Packing seat 6 fills up filler 8 above and utilizes Gland 9 by pin 7, swing bolt 10, bolt and nut 11 are pressed abd fixed on support 5, play fixing seal effect, valve rod 4 tops are furnished with Stem Mut 12, nut 13, handwheel 14, product inscription 15, utilize hand wheel nut 16 fixing.During use, can enable two-sided use simultaneously, also can use separately, there is double seal, dual control system, Double-clack design, a valve two seals, when one end seal leakage, available the other end sealing, carries out blowdown and switches, and sealability is more safe and reliable, strict assembling guarantees that valve opens and closes flexible operation freely, thereby reduce maintenance, greatly improve working life, economic benefit is obvious.

The foregoing is only the preferred embodiment of the present invention; it should be pointed out that for a person skilled in the art, according to invention spirit of the present invention and principle; can also make a lot of modification and improvement, but these modification and improvement all fall into protection scope of the present invention.

Claims

1. a two bar shutoff valve, in valve body double-sided symmetrical inner chamber, respectively insert a set of flap, on flap, utilize disc gland to connect valve rod, valve rod is fixed on valve body with support, support and valve lever clearance adapted Packing seat, above Packing seat, fill up filler, use Gland press seal above filler, Gland is connected with nut and compresses with support utilization pin, swing bolt.