Air Evacuation Valve with Solar Water Heater Exhaust Valves /73mm of Solar Water Heater Parts

Ref Price:
Loading Port:
Payment Terms:
Min Order Qty:
100 pc
Supply Capability:
1000 pc/month

OKorder Service Pledge

Quality Product

Order On-line Tracking

Timely Delivery

OKorder Service Pledge

Credit Rating

Credit Services

Credit Purchasing

Share to:

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 Evacuation Valve with Solar Water Heater Exhaust Valves /73mm of Solar Water Heater Parts

Air Evacuation Valve with Solar Water Heater Exhaust Valves /73mm of Solar Water Heater Parts

Air Evacuation Valve with Solar Water Heater Exhaust Valves /73mm of Solar Water Heater Parts

Send a message to us:

Remaining: 4000 characters

- Self introduction

- Required specifications

- Inquire about price/MOQ

Q:What is the difference between valve j941H-40 and j41H-40?
Valve design manual showsJ- stop valve9- electric4- connection means flange connection1- through typeH- sealing surface is alloy40- operating pressure is 4.0Mpa (or 40 kg)According to the comparison, we can see that the difference is that one drive mode is electric, one is transmission mode, and the other is manual. What do not understand, you can ask me directly. Two hundred and fourteen million two hundred and seventy-seven thousand eight hundred and fifty-one
Q:Which valves are installed in a directional manner?
Depends on the specific valve is one-way seal or two-way seal?
Q:What does the torque of the valve mean?
Unit: Newton M. torque is the minimum torque used to turn on the valve. It is the force that opens the valve!The valve that indicates the opening of the PZ73X-10C DN50 requires 5 meters of force.
Q:Which valve can play a good regulatory role?
A wide range of valves, the function is different, although like conventional butterfly valve, ball valve can play a regulatory role, but their role is not linear, so if you need to adjust the precision of the valve, it is best to select the control valve.
Q:What valves are needed on the construction site?
What he wants to ask is what valve is neededFrom the beginning of the floating ball valve tap water tank, water in front of the gate valve, the soft joint water slurry valve, check valve pipe pressure relief valve to prevent a full set of facilities, water hammer pipe return water pressure high absorb fire safety valve, proportional valve etc.These are the most basic
Q:Valve and pipe correspondence
If the valve from the opening and closing role, then the valve bore should be the same diameter with the pipe, big waste, small, increase resistance.If the role of the valve is adjusted, and that caliber will be different from the pipe diameter, this is not to reduce the cost of the problem, is a result of calculation, and this calculation results with flow, pressure drop and valve resistance curve.For example, control valve, usually smaller than the pipe diameter, such as pressure reducing valve, will be smaller than the pipe diameter to two.
Q:Where is the hydrant main valve?
The fire hydrant generally has two sources, one is from the roof water tank, a water pump is from the housing, maintenance, should close the fire hydrant located on the riser inlet valve tube under the ring, generally located in the top and bottom, and then discharge, when the valve cannot be closed, the proposed closure of replenishment valve and the pressure stabilizing device of water tank, fire pump in manual state, drainage after maintenance. Watch out for fire.
Q:Where is the Shandong valve? How about joint valves in Shandong?
To find Shandong valve manufacturers, Shandong better valve manufacturers are in Weifang, find the valve factory is also simple, direct search "Weifang valve" is
Q:What should be checked before using the valve?
5, check valve disc or spool movement is flexible and accurate, no bias, displacement or skew phenomenon6, spring-loaded safety valve should be sealed, positioning lever type safety valve should have the weight of the device7, rubber lining, lining enamel and plastic lined valve body surface should be smooth, the lining layer and the substrate firmly, no crack, blister defects, using high frequency electric spark generator to inspect the lining surface, not found in liner breakdown (white flash phenomenon) is qualified8, the valve flange sealing surface should meet the requirements, and shall not have radial scratches
Q:What valve is the FCV?
FCV is the control valve, you can adjust the valve opening according to the required flow.1, also known as the valve control valve, in the field of industrial automation and process control by adjusting the control unit outputs the control signal, the final control element with the power to change the media flow, pressure, temperature, level and other parameters. Generally composed of actuators and valves.2, according to the characteristics of the trip, the control valve can be divided into straight stroke and angular stroke. According to the power used by the executing agency, according to its function and characteristics are divided into linear characteristics, such as percentage characteristics and parabolic characteristics of the three. Control valve applies to air, water, steam, a variety of corrosive media, mud, oil and other media.

1. Manufacturer Overview

Year Established
Annual Output Value
Main Markets
Company Certifications

2. Manufacturer Certificates

a) Certification Name  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port
Export Percentage
No.of Employees in Trade Department
Language Spoken:
b)Factory Information  
Factory Size:
No. of Production Lines
Contract Manufacturing
Product Price Range