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Wrench spring-type safety valve

Products > Safety valve > Wrench spring-type safety valve

Wrench spring-type safety valve

Model: A47H-16C
Nominal diameter: DN20 ~ 300mm
Nominal: PN1.6 ~ 10.0MPa
Operating temperature: ≤300 ℃
body material: steel, forged steel, stainless steel
air, LPG and liquid: Medium
Applications : Suitable 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
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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

modelNominal diameterdoDKgg1bff1Z-? DDND1K1g2gb1ff1Z1-d1LL1≈H
A47H-16C201510575/55162/4-14201057555/162/4-1410085270
252011585/65162/4-14251158565/162/4-1410085270
3225140100/78182/4-183214010078/182/4-18115100312
4032150110/85183/4-184015011085/183/4-18120110320
5040165125/100203/4-1850165125100/203/4-18135120390
6550185145/120203/4-1865185145120/203/4-18140130395
8065200160/135203/8-1880200160135/203/8-18160135400
10080220180/155223/8-18100220180155/223/8-18170160600
125100250210/185223/8-18125250210185/223/8-18190190620
150125285240/210243/8-23150285240210/243/8-23205195625
200150340295/265263/12-23200340295265/263/12-23240230798
250200405355/320303/12-26250405355320/303/12-26350320981
300250460410/375304/12-26300460410375/304/12-263503201005
A47H-25201510575/55162/4-14201057555/162/4-1410085270
252011585/65162/4-14251158565/162/4-1410085270
3225140100/78182/4-183214010078/182/4-18115100312
4032150110/85183/4-184015011085/183/4-18120110320
5040165125/100203/4-1850165125100/203/4-18135120390
6550185145/120223/8-1865185145120/203/4-18140130395
8065200160/135243/8-1880200160135/203/8-18160135400
10080230190/160243/8-23100220180155/203/8-18170160600
125100270220/188283/8-26125250210185/223/8-18190190620
150125300250/218303/8-26150285240210/243/8-23205195625
200150360310/278343/12-26200340295265/263/12-23240230798
250200425370/332363/12-30250405355320/303/12-26350320981
300250485430/390404/16-30300460410375/304/12-263503201005
A47H-40201510575515516244-14201057555/162/4-1410085270
252011585586516244-14251158565/162/4-1410085270
3225140100667818244-183214010078/182/4-18115100312
4032150110768518344-184015011085/183/4-18120110320
50401651258810020344-1850165125100/203/4-18135120390
655018514511012022348-1865185145120/203/4-18140130395
806520016012113522348-1880200160135/203/8-18160135400
100802351901501602434.58-23100220180155/223/8-18170160600
1251002702201761882834.58-26125250210185/223/8-18190190620
1501253002502042183034.58-26150285240210/243/8-23205195625
2001503753202602823834.512-30200340295265/263/12-23240230798
2502004503853133454234.512-34250405355320/303/12-26350320981
3002505154503644084644.516-34300460410375/304/12-263503201005
A47H-64
A47Y-64
201513090516820244-182010575555116244-1410095301
2520140100587822244-182511585655816244-1410095301
3225155110668224244-2332140100786618244-18115105312
4032170125769524344-2340150110857618344-18135115366
50401801358810526344-23501651251008820344-18160125396
655020516011013028348-236518514512011022348-18175160570
806521517012114030348-238020016013512122348-18175160565
100802502001501683234.58-261002351901601502434.58-23190180597
1501003452802042403834.58-341503002502182043034.58-26280260738
A47H-100
A47Y-100
201513090516822244-182010575555116244-1410095301
2520140100587824244-182511585655816244-1410095301
3225155110668224244-2332140100786618244-18115105312
4032170125769526344-2340150110857618344-18135115366
50401951458811228344-26501651251008820344-18160125396
655022017011013832348-266518514512011022348-18175160570
806523018012114834348-268020016013512122348-18175160565
100802652101501723834.58-301002351901601502434.58-23190180597
1501003552902042504634.512-341503002502182043034.58-26280260738