Our brass check valve prevents reverse flow in piping systems by automatically opening and closing according to flow direction. It protects pumps, meters and equipment from damage caused by backflow, making it widely used in water supply, pressure boosting and circulation systems.
Key Features & Benefits
- One-way automatic operation requires no manual control
- Compact structure for easy installation in narrow spaces
- Forged brass construction for durability and pressure resistance
- Smooth opening and closing reduces water hammer
- Lightweight yet strong for long service life
- Suitable for vertical and horizontal installation
Technical Specifications
- Material: Forged brass body lead-free brass (C37700/C46500), brass disc, stainless steel spring
- Seal: EPDM / rubber washer
- Pressure Rating: PN10 / PN16
- Sizes: 1/2" – 2" (DN15 to DN50)
- Connection: NPT, BSP threaded
- Temperature Range: 0°C to 90°C
- Application: Water, non-corrosive liquids
|
DY-1002/ SIZE |
GRAM |
MATERIAL |
QTY/CTN |
G.W |
MEAS. |
|
1/2 |
124g |
FULL BRASS |
200 |
25.8kg |
42*32*22.5 |
|
3/4 |
190g |
FULL BRASS |
120 |
29.5kg |
42*32*22.5 |
|
1 |
270g |
FULL BRASS |
100 |
28kg |
42*32*22.5 |
|
11/4 |
410g |
FULL BRASS |
60 |
25.6kg |
42*32*22.5 |
|
11/2 |
560g |
FULL BRASS |
50 |
29kg |
42*32*22.5 |
|
2 |
880g |
FULL BRASS |
30 |
27.4kg |
42*32*22.5 |
|
21/2 |
1440g |
FULL BRASS |
8 |
18.6kg |
22*22*23 |
|
3 |
2000g |
FULL BRASS |
8 |
23.4kg |
25*25*24 |
|
4 |
3577g |
FULL BRASS |
4 |
18.4kg |
30.5*30.5*15 |
Applications
- Water pump outlet protection
- Household and commercial plumbing
- Booster pump systems
- Solar water heating lines
- HVAC circulation systems
Quality Control
Each brass check valve is tested for opening pressure, sealing performance and durability. Springs are selected for consistent elasticity, and internal surfaces are polished to ensure smooth flow.
Customization
- Custom cracking pressure
- Spring strength adjustment
- Special thread and size options
- Color and surface treatment
- OEM for brand distributors
who choose us?
100% pressure and air tightness testing before shipment. Corrosion-resistant, high-strength brass ball valves with stable performance, suitable for diverse global plumbing and industrial scenarios.
one-stop solution
professional team
high quality
FAQ
Q: 1.What is a check valve used for?
A: It allows fluid to flow in one direction only and prevents backflow in pipelines.
Q: 2.What materials are your check valves made of?
A: They are mainly made of brass, stainless steel and high-quality plastic for durability.
Q: 3.Can it be used for both water and gas?
A: Most models are designed for water systems; some can be used for air and non-corrosive gases.
Q: 4.Is installation direction sensitive?
A: Yes, the valve must be installed according to the marked flow direction.
Q: 5.Does it require manual operation?
A: No, it opens and closes automatically based on fluid pressure.
What if my question is not listed here?
Please feel free to contact our sales team through the online form, email or instant messaging tool on our website. We will reply to you within 6 hours and solve all your questions patiently.
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