• Spring Loaded Low Lift External Thread Type Pressure Safety Relief Valve (GAA21F/GAA21H/GAA21W/GAA21Y)
  • Spring Loaded Low Lift External Thread Type Pressure Safety Relief Valve (GAA21F/GAA21H/GAA21W/GAA21Y)
  • Spring Loaded Low Lift External Thread Type Pressure Safety Relief Valve (GAA21F/GAA21H/GAA21W/GAA21Y)
  • Spring Loaded Low Lift External Thread Type Pressure Safety Relief Valve (GAA21F/GAA21H/GAA21W/GAA21Y)
  • Spring Loaded Low Lift External Thread Type Pressure Safety Relief Valve (GAA21F/GAA21H/GAA21W/GAA21Y)
  • Spring Loaded Low Lift External Thread Type Pressure Safety Relief Valve (GAA21F/GAA21H/GAA21W/GAA21Y)

Spring Loaded Low Lift External Thread Type Pressure Safety Relief Valve (GAA21F/GAA21H/GAA21W/GAA21Y)

Connection: Thread
Structure: Spring Loaded Closed Low Lift Type
Material: Cast Steel/Stainless Steel
Category: Safety Valve
Actuator: Automatic
Connecting Type: Threaded
Customization:

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  • Product Description
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Overview

Basic Info.

Model NO.
GAA21F/GAA21H/GAA21W/GAA21Y
Medium
Air, Ammonia, Petroleum Gas., etc
Usage
Safety
Application
Industry
Transport Package
Plywood Case
Specification
ISO 9001
Trademark
Goole or others
Origin
Wenzhou
Production Capacity
10000PCS/Year

Product Description

Spring Loaded Low Lift External Thread Type Pressure Safety Relief Valve (GAA21F/GAA21H/GAA21W/GAA21Y)
Product Description

Spring Loaded Low Lift External Thread Type Pressure Safety Relief Valve (GAA21F/GAA21H/GAA21W/GAA21Y)

Low lift safety valve introduction:
1.In low lift valves, the disc only lifts a distance of 1/24th of the bore diameter. The discharge area is determined entirely by the position of the disc, and since the disc only lifts a small amount, the capacities tend to be much lower than those of full or high lift valves.
2. Low lift safety valve opening height is between one twentieth to one fortieth times of the flow diameter. 
GAA21F,GAA21H-C type are used for the equipment and pipeline of the air, ammonia, petroleum gas, etc. medium what the working temperature are less than 200ºC.
GAA21W-P,R type are used for the equipment and pipeline of the quality with corrode gas and liquid medium what the working temperature are less than 200ºC .Take for extra pressure protection devices.
KGAA21Y type are used for liquefied petroleum gas what the working temperature are less than 100ºC.
Product Details

GAA21H/W/Y Type Spring Loaded Low Lift Safety Valve Main Parts Material

NO. Parts Name A21H-C/A21F Material A21W-P/A21F-P Material A21Y-R Material
1 Nipple 20 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti
2 Nipple Nut 35 2Cr13 1Cr18Ni9Ti
3 Seat 35 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti
4 Body 2Cr13 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti
5 Disc 2Cr13/2Cr13+PTFE 1Cr18Ni9Ti/1Cr18Ni9Ti+PTFE 1Cr18Ni12Mo2Ti
6 Spring Washer 2Cr13 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti
7 Spring 50CrVA 50CrVA 50CrVA
8 Locking Nut Q235-A ZG230-450 1Cr18Ni9Ti
9 Guide 2Cr13 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti
10 Adjusting Bolt Q235-A 2Cr13 1Cr18Ni12Mo2Ti
  Sealing "Y"---Stellite, "H"------D507,  "W"------Body material
 
 A21H/W/Y Type Spring Loaded Low Lift Safety Valve Main Dimension.

Spring Loaded Low Lift External Thread Type Pressure Safety Relief Valve (GAA21F/GAA21H/GAA21W/GAA21Y)
Model DN do d Do M d1 D1 L L1 ≈H
KA21-16C
A21H-16C
A21H-40
A21W-16P
A21W-40P
KA21-16P
15 12 15 20 M27×1.5 G1/2" 30 35 76 66
20 16 20 25 M33×1.5 G3/4" 35 40 87 68
25 18 25 31 M39×1.5 G1" 40 50 100 105
A21Y-64
A21Y-64P
A21Y-100
A21Y-100P
15 10 15 25 M39×1.5 G1" 44 50 100 66
20 10 20 31 M39×1.5 G1" 44 50 100 68
25 12 25 31 M39×1.5 G1" 44 50 100 105
A21W-160/160P 15 8 20 / M24×2 G1" 44 50 100 261
20 8 25 / M33×2 G1" 44 50 100 261
25 8 28 / M36×2 G1" 44 50 100 285
View of the factory
Spring Loaded Low Lift External Thread Type Pressure Safety Relief Valve (GAA21F/GAA21H/GAA21W/GAA21Y)
Spring Loaded Low Lift External Thread Type Pressure Safety Relief Valve (GAA21F/GAA21H/GAA21W/GAA21Y)

 

Spring Loaded Low Lift External Thread Type Pressure Safety Relief Valve (GAA21F/GAA21H/GAA21W/GAA21Y)
Spring Loaded Low Lift External Thread Type Pressure Safety Relief Valve (GAA21F/GAA21H/GAA21W/GAA21Y)

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Diamond Member Since 2015

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Manufacturer/Factory, Trading Company
Management System Certification
ISO 9001, ISO 14001
OEM/ODM Availability
Yes