Gold Member Since 2007
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Zhejiang Guanlong Machinery Valve Co., Ltd.

Suction Valve, Vacuum Breaker, Air Vent manufacturer / supplier in China, offering Furnace Boiler Vacuum Breaker Air Release Valve, Multiple Spraying Holes Type Multi-Functional Axial Plunger Control Valve (GLH942X), Multiple Spraying Holes Multifunctional Axial Flow Plunger Control Valve (GLH642X) and so on.

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Supplier Homepage Product Air Release Valve/ Air vent Furnace Boiler Vacuum Breaker Air Release Valve

Furnace Boiler Vacuum Breaker Air Release Valve

FOB Price: US $2-10 / Piece
Min. Order: 50 Pieces
Min. Order FOB Price
50 Pieces US $2-10/ Piece
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Port: Ningbo, China
Production Capacity: 25000 PCS/Year
Payment Terms: L/C, T/T

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Basic Info
  • Model NO.: GL7190
  • Standard: API, BS, GB, Jb, DIN, etc.
  • Trademark: KARFAR
  • Specification: DN15 - DN25
  • Certificate: ISO, Ce
  • Material: Brass / Stainless Steel etc
  • Transport Package: Bubble Plastic Paper + Plywood Case
  • Origin: China
Product Description
Furnace Air Release Valve

Furnace Boiler Vacuum Breaker Air Release Valve                  Furnace Boiler Vacuum Breaker Air Release Valve

SIZE: 1/2",  3/4" , 1"
Working pressure: ≤1.6MPa
Working temperature: ≤150ºC
Connection: Male threaded end (NPT, BSP, ISO228 etc)
Medium applicable: Water (non- corrosive)
Main material: Brass, Stainless steel (Chrome, Nickel coated)

When Heating system works, the water in the pipeline release gas (such as hydrogen, oxygen ) which shall bring a lot of side effects to damage system and influence heating.These gases should be released in time or it shall lead to problems like: Oxygen leads to corrosion; Gathered gas makes air bag in the system; Gas makes heating system blocked and unbalance and make radiator partial failure; Noise during running;

Air release valve utilizes the power from buoy moving up or down with water level to actuate on/ off operation. Gas in the pipe shall eventually gather in the upper portion of the air release valve. When gas pressure is bigger than system pressure, water level declines and buoy drops with water level. As buoy drops to a certain level, it actuates the linkage lever system to open the vent port and release gas. After gas releasing, water level rises and buoy float up with water level. Under  force of loaded spring, the vent port is finally closed. By this way, gas is released automatically from the system continually.

This valve has high reliable performance. The valve designer takes all harmful factors into consideration( Such as impurity, oil, floating substance etc; Medium vibration when air is being released; Pipeline and equipment vibration). Its high capacity keep running during system loading with large amount of gas or system drainage under high pressure.

1, Reliable capacity.
2, Release gas only. (No water shall be released due to specially designed gas-water-separator)
3, valve keeps running as long as there is pressure in the system

Materials:Aluminum Alloy:6061/ 7075 / etc.
Carbon steel: Mild steel,Y15Pb,1214,#45,
Alloy steel:4140,35CrMo,40Cr,42CrMo
Stainless Steel:304/316/ etc.
Brass: H59/H62/ Copper/Bronze
We can follow your samples& drawings on materials.
Surface :Anodizing/Black Oxide/Electroplating/Heat Treating/
Grinding/Polishing/Powder Coating/Nickel plating.
Samples:Samples are available before bulk orders for quality approval.
Inspection:100% inspection before shipment.
Packing:Carton, Wooden Case, Pallet.
We also can pack as per your request.
Payment:T/T,  L/C
Lead time:Samples are within 10 days,
Production will be finished about 20-30 days after samples confirmed
Installation and maintenance:
1, Please unfasten the cap overriding to make sure gas release smoothly.
2, Under blocking condition, fasten the cap and dissemble the valve. After cleaning, it shall resume working.

Furnace Boiler Vacuum Breaker Air Release Valve

Furnace Boiler Vacuum Breaker Air Release Valve

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