Durable Automatic Air Release Valves in Stainless Steel 304

• Customization: Available
• Type: Compound Exhaust Valve
• Material: Stainless Steel
• Model NO.: VALVES
• Certification: ISO9001
• Transport Package: Wooden Package
• Specification: stainless steel 304
• Trademark: USI
• Origin: China

Product Description

 

Product Description

Production introduction
This product is used at the highest point of pipeline,the place where air is shout off, or the outlets of pumps in order to eliminate air and dredge pipeline, if the vent valve is not set, the air in the pipeline will be possibly shutoff at any time,and the water content willnot meet the design requirement, if the electricity is suddenly cut off when pipeline is at work, the negative pressure in the pipeline willcause vibration or cracking.In this case.the vent valve can quickly inhale air into the pipeline and prevent the vibration and cracking of it.   

Operating Principle
There are two holes in the compound vent valve,one big, one small.the diameter nearly equals DN, the frist time water is passed in the pipeine a large amount of air will be released through the big hole,immediately the air is completely removed,the big hole stops working, when the pipeline is at work air cells will be generated, and air cells will grow bigger while move to the upper part of the pipeline, which willhave a negative influence on the flow in the pipeline,at this moment these air cells can be removed through the smallhole. Therefore no air can exist in the pipeline, in order to inhale a lot of air, a foating ball will fall and open the small hole which will drive the opening of the big hole.  
 
Warning:the working pressure of vent valve cannot be over 0.02MP,if not water will be leaked, andThis valve should be equipped with another valve for its maintenance.

Technical Parameters 
1. Working pressure:1.0Mpa 
2. Medium:water
3. Applicable temperature:constant temperature 
4. Body:HT200 castiron                           
5. Floating ball and piston:304 stainless steel 
6. Packing material:ding clear rubber                       
 

Dimensions																							Part material
DN(mm)				D			D1			D2			φ		H		Z~φd						No.		Name											Material
25				115			85			68			195		320		4-14						1		Supporting yoke											HT200
50				160			125			100			195		320		4-18						2		Rain-proof cover											HT200
80				195			160			135			242		375		4-18						3		Guide rod piston											304 stainless steel
100				215			180			155			260		395		8-18						4		Seal ring											Nitrile rubber
150				280			240			210			340		500		8-23						5		Seal gasket ring											PTFE
200				335			295			265			405		600		8-23						6		Seal ring gland											304 Stainless steel
250				390			350			320			465		680		12-23						7		Protecting barrel											304 Stainless steel
300				440			400			368			505		780		12-23						8		Floating ball											304 Stainless steel
350				500			460			428			605		860		16-23						9		Body											HT200
400				565			515			482			660		940		16-25						10		Seal head											Nitrile rubber

Company Profile

Product Tests

Certifications

 

FAQ

Q1. Who are we?

A:  We are based in Hunan, China, start from 2018,sell to Southeast Asia(18.00%),South America(17.00%),Africa(17.00%),Mid East(16.00%),Oceania(9.00%),South Asia(6.00%),Northern Europe(5.00%),Southern Europe(3.00%),Eastern Europe(2.00%),Western Europe(2.00%),Eastern Asia(2.00%),Domestic Market(1.00%),North America(1.00%),Central America(1.00%). There are total about 101-200 people in our office.


Q2. How can we guarantee quality?

A: Always a pre-production sample before mass production;
    Always final Inspection before shipment;


Q3. What can you buy from us?

A: Carbon steel pipe,stainless steel pipe,casing and tubing,alloy steel pipe,scaffolding tube


Q4. Why should you buy from us not from other suppliers?

A: 1.Strong financial support:we can handle max amount 100-500 million dollars for an order.
     2.Rich experienced marketing team/production team/after-sales team
     3.We can provide you with all the required documents when the tender is in progress.


Q5. Are your prices competitive?

A: for the same quality, our price is lower, for the same price, our quality is the best better.


Q6. What are your company's strengths?

A: Factory spot, competitive prices, excellent quality, support factory inspection, video call at any time, technical support in 24/7. Simultaneously, we have participated in many international projects.

 
Q7. What services can we provide?

A: Accepted Delivery Terms: FOB,CFR,CIF,EXW,FCA,DDP,DDU;
     Accepted Payment Currency:USD,EUR,CNY;
     Accepted Payment Type: T/T,L/C,D/P D/A;
     Language Spoken:English,Chinese,Spanish,Portuguese,German,French

 
Q8. What is your usual delivery time?

A: From the execution date of the PI, spot products will be delivered within 3 days, and customized products within 15 days.
    Special circumstances, please communicate again. All our products have strict quality inspection before they leave the factory, to ensure that you receive the goods with excellent quality.

 
Q9.Whether to support OEM or ODM?

A: We welcome customers to cooperate with us by OEM or ODM. We have a professional technical team, can be customized according to drawings or requirements.