Air Vent Valve on Sale with High Quality Now

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Product Description:

1.Packaging & Delivery

Packaging Detail:

standard export packing, steel pallets, wooden pallets, customers required

Delivery Detail:

10 Days

 Air Evacuation Valve  Specifications

1. good structure
2. pressure and impact
3. stability performance

Air Evacuation Valve Status: when the pressure is lower than the Standard Atmospheric Pressure in the ash silo, it generates vacuum in the silo. Then the film works and adjusts the air pressure back into the safety range.   

2.Product Introduction 

Air Evacuation Valve (So-called Ash Silo Relief Valve or Ash Silo Vacuum Relief Valve): is mainly used on the top of the Steel Silo or Ash Silo to release the extra pressure so that it will stay at a safe range all the time. Vacuum Relief Valve is made up of lid, spring ring, movable ring, film, spring of the retainer ring, retainer  ring, valve lid, Valve base. 

 Air Evacuation Valve is considered as a must-have facility for the ash silo.The pressure may change when the air stream inflows the ash silo or outflows, or the temperature rises or reduces. Release Valve protects the silo from safety hazard

3.Working Principle 

 1.Static status: Once you set up a pressure range. Normally,  pressuer could be maintained at a stable level in the ash silo.The valve lid keeps static, and the whole valve is completely sealed.

2.Pressure-Release Status: when the pressure rises upon the setted range, the valve lid would be opened automatically to release the extra airstream.As the pressure goes down to the standard level, the valve lid would be closed automatically.

 3.Vacuum-Released Status: when the pressure is lower than the Standard Atmospheric Pressure in the ash silo, it generates vacuum in the silo.Then the film works and adjusts the air pressure back into the safety range.So that, Relief Valve protects the silo from safety hazard.


1. Customized is allowed.
2. Installing in welding or bolts.
3. Factory price.
4. Stock any time.
5. Positive rating:100%.
6. Neccessary device in storage silo.

5.Our Services

Private Customized:

We design  different Pressure Relief Valve according to specific requirement.

Customers’ Guidance:

Please leave the following info in inquiry

1.  What’s the raw material  ( carbon steel or stainless steel  )

2. What’s the entrance diameter( 508 mm /273 mm  or customized)

Because with these factors, we are able to give you a fast answer.

Air Vent Valve on Sale  with High Quality Now


Air Vent Valve on Sale  with High Quality Now

Air Vent Valve on Sale  with High Quality Now



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Q:What kind of valve is it? How do you see the status of the switch?
This is called gate valve. The core is opened and the core is screwed down. Turn left and right.
Q:What is the difference between valve j941H-40 and j41H-40?
I see "valve design manual" category code table, in front of 9 of the electric drive, no 9 is the ordinary hand wheel drive.
Q:Ketem valve relative to other valve companies in the industry what are the advantages?
Floating hard sealing electric ball valve is suitable for two cutting and adjusting occasions. Connect the valve and actuator by using direct connection, DCL series miniature electric actuator (also can be configured according to user requirements of the electric actuator or pneumatic piston actuator of different types of electronic components and ultra short ball).
Q:What does the RF of the valve mean?
Convex flange, RAISED, FACE,At 150#, 300#, height is 2MMAbove is 7MM,
Q:Where is the Hefei valve market?
At the intersection of Mingguang Road and Shengli Road, the southwest side is all made of valves
Q:The valve has a clear opening and closing sign. What does this sentence mean?
In the hand wheel or valve placed on the signs, the contents of the device name, switch direction and so on.
Q:Valve legend
This should be part of the thermodynamic device that represents the gate valve or butterfly valve
Q:What are the specifications of the valves PN25, DN50?
PN25 - nominal pressure 25bar (25kgf/cm -)DN50 - nominal diameter is 50mm (2)
Q:Valve connections - two how do different connections work?
The connection of two different connection forms is achieved by a transition conversion connector
Q:What is the normal temperature on the valve?
3. classification by operating temperature(1): ultra-low temperature valve for medium temperature of t< DEG C; 101 valve.(2): used for medium temperature valve operating temperature 101 C = t = 29 C valve.(3) at room temperature for medium temperature valve: the valve 29 425 degrees celsius.If it helps, see it

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