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Wrench spring-type safety valve

Wrench spring-type safety valve

Country/Region china
Company Shandong Hugong Valve Manufacturing Co., Ltd
Categories API Safety Valve
Update 2019-08-13 04:10:21
ICP License Issued by the Chinese Ministry
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Products > Safety valve > Wrench spring-type safety valve
    • 1

Wrench spring-type safety valve

Model: A47H-16C
Nominal diameter: DN20 ~ 300mm
Nominal: PN1.6 ~ 10.0MPa
Operating temperature300
body material: steel, forged steel, stainless steel
air, LPG and liquid: Medium
ApplicationsSuitable for chemical, petrochemical, petroleum, papermaking, mining, electricity, liquefied petroleum gas, food, pharmaceutical, water supply and drainage, municipal, mechanical equipment, electronics, urban construction and other fields
Hotline:+86-0536-8356588

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  • Product introduction

A47H type with a wrench spring micro -type safety valve structure brief
1, spring micro-type safety valve has the advantages of simple structure, good sealing performance, opening pressure is accurate, discharge capacity, back to the seat pressure is small, easy to adjust and so on.
2, nozzle-type valve seat: seat for the seat nozzle valve seat, the steam flow through the seat outlet to reach the speed of sound, emission factor, seat sealing surface surfacing Cobalt Chromium tungsten carbide wear-resistant impact Erosion, long life.
3, Thermo-elastic disc: The disc is designed as a thermo-elastic structure, using its slight deformation under medium pressure to improve the sealing ability and overcome the pre-vent phenomenon when the safety valve approaches the setting pressure under medium pressure. Valve sealing surface using advanced laser quenching technology to improve the hardness, wear resistance, impact resistance.
4, adjusting nut: By adjusting the adjusting nut, adjust the amount of spring compression, so that the valve can be very convenient, very quickly get accurate setting pressure.
5, back pressure adjustment sets: adjust valve back pressure auxiliary agencies, through the back pressure adjustment sleeve adjustment, access to the appropriate back seat pressure. Increase the valve back pressure to reduce. Lower the valve back pressure.

A47H type with a wrench spring-type safety valve installation instructions
1, the safety valve must be mounted vertically, and the best direct installation in the container or pipe joints. Connector diameter should not be less than the safety valve inlet diameter.
2, the safety valve outlet must be fitted with appropriate expansion joints to prevent the thermal expansion of the discharge pipe to the safety valve to bring undue thermal stress. The discharge pipe diameter should be larger than the valve outlet diameter, the length as short as possible to avoid turning. The discharge pipe and expansion joint weight should not act on the safety valve, should be fixed in the building. The distance between the centerline of the discharge pipe and the centerline of the valve body should be as short as possible. For each safety valve should be installed separately discharge pipe.
3, muffler exit to have enough area to prevent back pressure affect the discharge capacity of the valve.

A47H type wrench spring micro - Kai safety valve main parts and materials

NO.

Part Name

material

1

Body

WCB

2

Seat

ZG2Cr13

3

Adjustment ring

ZG2Cr13

4

Disc

2Cr13

5

Guide sleeve

2Cr13

6

cap

ZG230-450

7

spring

50CrVA

8

Valve stem

2Cr13

9

wrench

ZG200-400

10

Adjust the screw

45

11

Protective cover

ZG200-400


Sealing surface material

"H" surfacing D507, "Y" surfacing Co-based cemented carbide


A47H -type spring with a wrench spring-type safety valve main dimensions


Product Tags:

stainless steel

      

tungsten carbide

      
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Wrench spring-type safety valve Images

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