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AX742X Fire fighting water supply system safety relief valve

AX742X Fire fighting water supply system safety relief valve

AX742X Fire fighting water supply system safety relief valve
CategoriesHydraulic control valve
AlbumView larger image
BrandGARLOS
ModelAX742X
Nominal Pressure1.0/1.6/2.5MPa
Shell Test Pressure1.5/2.4/3.75MPa
Seal Test Pressure1.1/1.76/2.75MPa
Suitable MediumWater
Medium Temperature0-80℃
Update Time2019-12-13
Detail Information

Brief Introduction


AX742X Safety relief valve/ Pressure Holding valve is mainly used for the water supply system of fire control and others, to avoid overpressure, or holding fire control water supply system pressure. After fire control pump closing, it can also reduce water hammer damage. It can also been used for water hammer device of large water supply system. This valve is composed of main valve, needle adjust valve, pilot valve, ball valve and pipe system. Main valve adopts full bore, straight way and streamline design, low head loss. Main valve could be diaphragm type or piston type.



Parameters


Nominal

Pressure

Shell Test

Pressure

Seal Test

Pressure

Adjust Range

Suitable

Medium

Medium

Temperature

1.0 MPa

1.5 MPa

1.1 MPa

0-1.0MPa

 

 Water

 

0-80

1.6 MPa

2.4 MPa

1.76 MPa

0-1.6MPa

2.5 MPa

3.75 MPa

2.75 MPa

0-2.5MPa










Material



Part Name

Material

Valve Cap

Gray cast iron, Ductile iron, Carbon steel, Stainless steel, etc.

Spring

Spring steel, Stainless steel, etc.

Diaphragm depressor

Gray cast iron, Ductile iron, Carbon steel, Stainless steel, etc.

Diaphragm

NBR, PTFE, etc.

Valve Rod

45# steel, Stainless steel 2Cr13, 1Cr18Ni9Ti, etc.

Valve Platen

Gray cast iron, Ductile iron, Carbon steel, Stainless steel, etc.

Sealing Ring

NBR, PTFE, etc.

Sealing Ring Platen

Gray cast iron, Ductile iron, Carbon steel, Stainless steel, etc.

Valve Seat

Copper alloy, Stainless Steel

Valve Body

Gray cast iron, Ductile iron, Carbon steel, Stainless steel, etc.



Installation




Dimension



 

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