Introduction to functions and features
The valve is used in pressure vessel piping systems
Breathing valve has two functions, when the pressure is higher than the set pressure (standard 1 BAR) can exhaust, whereas closed, while vacuum piping system (standard 0.2 BAR) when the valve opens automatically, to ensure the safety of the equipment and related instrumentation protection, at the same time can also meet the demand in all kinds of production process, the valve in stainless steel material, health design, content with all sorts of food processing, beer, beverage and pharmaceutical and other industries.
Quality Policy:
We are committed to the highest products and process quality, as well as sustained cost effectiveness are attained by continuous improvements at all levels and in all areas. At the same time we focus on optimal work safety and appropriate environmental protection. All our products are manufactured under complete Quality Check guided by the codes & as directed by the customers. Each of our products are checked right from the raw material stage to final products as per quality manuals & quality assurance plan approved by the clients. We have our equipments & measuring instruments duly calibrated by approved agencies.
The valve is easy to take apart and clean. 15 lb. and 25 lb. pressure springs are available. Relief pressure can be adjusted down 5 lb. The valve will open at 0.089 lb. of vacumm. Full stainless steel body construction.
Standard Design

Size |
D2 |
D1 |
D3 |
H |
1.5" |
Φ50.5 |
Φ35 |
Φ42 |
72 |
2" |
Φ64 |
Φ47 |
Φ51 |
85 |
2.5" |
Φ78 |
Φ59 |
Φ64 |
90 |

Technical data:
connection:clamp Working pressure:0.2mpa Working Temperature:-30℃+150℃ Working medium:Gas
No |
Name |
Material |
1 |
Valve body |
SS304 |
2 |
Valve element |
SS304 |
3 |
Filler Plate |
EPDN |
4 |
The Valve Core Seat |
SS304 |
5 |
Negative Pressure Spring |
SS304 |
6 |
Positive Pressure spring |
SS304 |
7 |
Blind Nut |
SS304 |
Application Scene
