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Exhaust valve is an essential auxiliary component in the pipeline system, which is widely used in boilers, oil and gas, water supply and drainage pipeline. Often installed in the high ground or elbow, etc., to exclude excess gas pipeline, improve the efficiency of the use of pipe road and reduce energy consumption. HVAC system and HVAC system in the operation process, release of water in the heating gas (such as hydrogen and oxygen) many adverse effects will damage the system and reduce the thermal effect of these gases, such as not timely drain will have many adverse consequences. Such as: corrosion caused by oxidation; the formation of air pockets in the radiator; hot water circulation is not smooth and unbalanced, so that some of the local heat radiator is not hot; pipeline with the noise of the operation of the gas; circulation pump vortex phenomenon.
2. The Parameters of Cast Iron Exhaust Valve
Model
2W160-10
2W160-15
2W200-20
2W250-25
2W350-35
2W400-40
2W500-50
Working Medium
Air, Water, Oil, Gas
Motion Pattern
Direct Drive Type
Type
Normal Close Type
Aperture of Flow Rate mm
16
Â
20
25
35
40
50
CV Value
4.8
Â
7.6
12
24
29
48
Joint Pipe Bore
3/8″
1/2″
3/4″
1″
1 1 /4″
1 1 /2″
2″
Operation Fluid Viscosity
Below 20CST
Working -pressure
Air: 0~1.0Mpa. Water: 0~0.1Mpa. Oil: 0~0.1Mpa
Â
Â
Â
Â
Â
Â
Max. Pressure Resistance
1.0Mpa
Operating Temperature
-5~80 degree
Voltage Range
±10%
Material of Body
Brass
Material of Oil Seal
NBR or VITON
3. About our Products:
Â
Model NO.: 2W
Type: Flexible Ball Valve
Function: Blow-Down Valve, Relief Valve, Atmospheric Valve, Bypass-Valve
Casting Material: Cast Iron
Inlet: 10-100mm
Outlet: 10-100mm
Color: Random
Motion Pattern: Direct Drive
Trademark: SOLID
Transport Package: Polywood
Specification: 0.8-30m3/h
Origin: China
HS Code: 8413104090
 1. Brief Introduce Cast Iron Exhaust Valve
  The exhaust valve is used in independent heating system, central heating system, heating boiler, central air conditioning, floor heating and solar heating system. As there is usually air dissolved in water, and the air solubility decreases with increasing temperature, so the water cycle process gas gradually separated from the water, and gradually come together to form large bubbles or column, because of water added, so often gases. The exhaust valve is divided into heating type, micro type, fast type, compound type, etc..WENZHOU SOLID MECHANICAL EQUIPMENT CO., LTD