Hot Products
01
Single Port Vent Air Release Valve - China Suppliers and Factory for Pneumatic, HVAC, and Water Treatment Systems
Product Details
It allows airflow in one direction only. It works on a simple principle — when the air pressure exceeds a certain critical value, the valve opens and allows air to pass through. Conversely, when the pressure falls below a critical value, the valve closes, preventing air from returning.
Key Features
- Automatic air releasing and filling without manual operation
- Short in height than other same kind air vents
- Durable, long-lasting construction
- Reliable Sealing
Specification
Parts & Materials
NO |
PART NAME |
MATERIAL |
1 |
Body |
Cast iron |
2 |
Bucket |
Cast iron |
3 |
Ball float |
ABS |
4 |
Gasket |
NBR |
5 |
Inside cover |
Cast iron |
6 |
Bolt |
Carbon steel |
7 |
Outside cover |
Cast iron |
8 |
Bolt |
Carbon steel |
Dimensions
DN |
D |
D1 |
D2 |
b |
H |
Z-d |
W |
ф40 |
ф110 |
ф110 |
ф84 |
18 |
224 |
4-ф19 |
ф166 |
ф50 |
ф165 |
ф125 |
ф99 |
20 |
236 |
4-ф19 |
ф178 |
ф65 |
ф185 |
ф145 |
ф118 |
20 |
244 |
4-ф19 |
ф199 |
ф80 |
ф200 |
ф160 |
ф132 |
22 |
248 |
8-ф19 |
ф202 |
ф100 |
ф220 |
ф180 |
ф156 |
24 |
284 |
8-ф19 |
ф233 |
ф150 |
ф285 |
ф240 |
ф211 |
26 |
324 |
8-ф23 |
ф282 |
Frequently Asked Questions
How does this air vent valve work?
The valve operates on a pressure-based principle. When air pressure exceeds a critical threshold, the valve opens to allow air to pass through. When pressure drops below that threshold, the valve automatically closes to prevent backflow.
Does the valve require manual operation to release or fill air?
No. The valve features fully automatic air releasing and filling, requiring no manual intervention during normal operation.
What materials are used in the construction of this valve?
The main structural components such as the body, bucket, inside cover, and outside cover are made of cast iron. The ball float is made of ABS, gaskets use NBR rubber, and bolts are carbon steel — ensuring durability and reliable sealing.
What pipe sizes are available for this air vent valve?
The valve is available in a range of sizes from DN ф40 up to DN ф150, covering a variety of standard pipeline installation requirements.
How does this valve compare in height to similar air vent products?
This valve is designed to be shorter in height compared to other air vents of the same kind, making it easier to install in spaces with limited clearance.
What makes the sealing performance of this valve reliable?
The valve uses NBR gaskets combined with a precision-fitted ball float mechanism, providing a tight, reliable seal that prevents air backflow and minimizes leakage risks under varying pressure conditions.
Product Packaging
01020304