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Dresser Boiler Tank Safety Valve (A42)

Basic Info

Model No.:  A42

Product Description

Model NO.: A42 Connection End: Flanged Specification: ANSI HS Code: 84814000 Structure: Angle Trademark: ONEV Origin: Zhejiang, Cn Application: 
A pressure relief valve (PRV) is a safety device that relieves overpressure in a vessel or system. When the pressure of vessel or system increased beyond the specified design pressure or maximum allowable working pressure, PRV will be opened automaticly to relief the overpressure for proteding the vessel or system. The PRV will be closed if the pressure reached specified design pressure so that to ensure the normal operation and protect the vessel or system. 



Our Pressure Relief Valve has been designed and manuractured according to following Standard: 
ISO 4123-1 Safety Devices for Portection Against Excessve Pressure 
API STD 526 Flanged Steel Pressure Relief Valves 
API STD 527 Seat Tightness of Pressure Relief Valves 
ASME Boiler and Pressure Vessel Code Section VIII Division 1, Rules for Construction of Pressure Vessels 

FEATURES

RADIATOR DEIGN For safety valve over 350 DegreeC, the radiator strcuture will be applied to suit high temperature conditions, the radaitor will help to disperse heating and protect the spring form overheating circumstances so as to ensure the stability of spring.
 
HIGH PERFORMANCE SPRING Only high grade spring is selected for operation for safety valve, the spring has been gone through strictly test including physical and chemical analysis so as to ensure the best stablity and safety for operation.
 
FINE STEM PROCESSION The stem was processed by CNC machine to give 100% vertical so as to make sure the smoothly opening and blowing of the safety valves.
 
DOUBLE ADJUST TING Double adjusting ring are used for blow down adjustment, we give fine procession of adjusdting ring to give smoothly adjusting for safety valve.
 
NOZZLE AND DISC The surface of both disc and nozzle seat is deposited with hard alloy of Stellite, and the excellent surface treatment by precision machining and lapping ensure the tightness and stable performance during the operation.
 


SIZE AND WEIGHT

Type Size Do Inlet Flange Outlet Flange L L1 H   Kg
150Lb 10 250 150Lb NPS10  RF 150Lb NPS12  RF 350 310 1102 537.3
12 300 150Lb NPS12  RF 150Lb NPS16  RF 390 370 1427 840
14 350 150Lb NPS14  RF 150Lb NPS16  RF 460 400 1520 1219
16 400 150Lb NPS16  RF 150Lb NPS20  RF 500 450 1812 1863
20 500 150Lb NPS20  RF 150Lb NP24  RF 580 560 2100 2634
24 600 150Lb NPS24  RF 150Lb NPS26  RF 600 610 2050 2875

Type Size Do Inlet Flange Outlet Flange L L1 H   Kg
300Lb 10 250 300Lb NPS10  RF 150Lb NPS12  RF 350 320 1721 780
12 300 300Lb NPS12  RF 150Lb NPS16  RF 390 320 1625 1094
14 350 300Lb NPS14  RF 150Lb NPS16  RF 450 400 1665 1295
14 350 300Lb NPS14  RF 150Lb NPS20  RF 500 450 1725 1420
16 400 300Lb NPS16  RF 150Lb NP20  RF 500 450 1952 1890



Quality & Test:

Dresser Boiler Tank Safety Valve (A42)

Products:


Dresser Boiler Tank Safety Valve (A42) 


Recently Exhibitons Show:

The Valve World Expo ( Dec. 2014,German)

The OTC exhibition ( May, 2014 Houston)

The OTC exhibition ( May, 2013 Houston)

The Valve Word Expo ( Sep. 2013, China)

The Valve World Expo ( Sep. 2012,German)

Dresser Boiler Tank Safety Valve (A42)
Size  1/2" - 20"  (10mm - 500mm)
Pressure  Class150 - 2500  (0.06 mpa- 42.0 mpa)
Temperature  -196  ~ +580 degc.
Material  Alloy steel, Carbon steel
Design Standard  ASME, API, JIS, DIN, GOST, ISO..et.

Contact us if you need more details on Suzhou Safety Valve. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Boiler Safety Valve、Steam Safety Valve. If these products fail to match your need, please contact us and we would like to provide relevant information.

Product Categories : Pressure Safety Valve > Oil Safety Valve

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