• Automatic release valve
  • Automatic release valve
  • Automatic release valve

Automatic release valve

Features: Nominal Pressure: 1.0,1.6MPa
DN: 50~200mm
Medium: Water
Work temperature: ≤120℃
Design Standard : BS5163
Flange Standard : BS EN 1092

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  • Standards&Features
  • Case
  • Application
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Parameter:


DN D D1 D2 L b H Z-d
ф50 ф165 ф125 ф99 240 20 211 4-ф19
ф65 ф185 ф145 ф118 256 20 211 4-ф19
ф80 ф200 ф160 ф132 305 22 261 8-ф19
ф100 ф220 ф180 ф156 328 24 269 8-ф19
ф150 ф285 ф240 ф211 392 26 320 8-ф23








NO PART NAME MATERIAL STANDARD
1 BODY GRAY GAST IRON BS1452.220
2 BIG FLOAT BALL ABS  
3 LITTLE FLOAT BALL ABS  
4 GASKET NBR BS2494
5 COSKET GRAY CAST IRON BS1452.220
6 GASKET NBR BS2494
7 COVER GRAY CAST IRON BS1452.220
8 BOLT CARBON STEEL BS1769
9 MILIPAD NYL  
10 BOLT STAINLESS STEEL 2Cr13

Standards&Features:

Part Material
NO. PART NAME Material
1 Body & Bonnet Ductile Iron 
2 Baffle Ductile Iron 
3 Float Ball Stainless Steel 304
4 Seal Ring EPDM
5 Air Release Valve  Assembly

Case:

Operation of pipeline system, when the pipeline internal pressure or temperature changes and dissolved in the water of the air is released,
air valves will be the timely discharge, prevent pipeline in formation of gas and affect the operation of the pipeline system.

Application:

In pumping station pressure tank tops and the water pipe on the installation of air valve for water conveyance pipeline during the initial water filling, regular maintenance of pipeline after water filling the air inside the pipeline to discharge, avoid pressure fluctuations; in pipeline water hammer negative, air valve opening, so that the tube Daowai air into the pipeline, lest in the pipe produced larger negative pressure, play a protective role.

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