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China Ball Check Valve Suppliers - Flanged Type Factory for Efficient Water Flow Control
Description
The Ball Type Check Valve is an efficient and reliable solution for backflow prevention in pipelines carrying water, sewage, or other industrial fluids. Designed with a movable ball inside the valve body, this check valve allows one-way flow and automatically blocks reverse flow by gravity or pressure difference, ensuring smooth and silent operation.
As one of China's leading valve suppliers, we provide ball type check valves that are especially suitable for applications involving wastewater, slurry, or media with suspended solids. The internal ball seat is self-cleaning and resistant to clogging, which makes it ideal for underground pipelines, water treatment plants, and chemical processing systems.
The compact design of the ball type check valve allows for horizontal or vertical installation with minimal space requirements. It offers long service life, easy maintenance, and excellent sealing performance even under challenging flow conditions. Available in ductile iron, cast iron, and stainless steel options, our valves comply with international standards for durability and safety.
If you're looking for a dependable solution to prevent reverse flow in your system, our ball type check valve delivers quiet operation, corrosion resistance, and efficient performance.
- 🔄One-way flow control — automatically blocks reverse flow
- 🧹Self-cleaning ball seat — resistant to clogging from solids
- 🔧Horizontal or vertical installation — flexible & space-saving
- 🛡️Available in ductile iron, cast iron & stainless steel
- 🔇Quiet operation with excellent sealing performance
- 🌍Complies with international standards for safety & durability
Standard Materials of Main Parts
| ITEM | PART NAME | MATERIAL |
| 1 | Body | DI |
| 2 | Bonnet | DI |
| 3 | Bolt | CS |
| 4 | Bolt | EPDM |
Dimensions (mm)
| DN | F6 | PN10 | PN16 | ||||||
| L | D | D1 | D2 | n-Ød | D | D1 | D2 | n-Ød | |
| 50 | 200 | 165 | 125 | 102 | 4-18 | 165 | 125 | 102 | 4-18 |
| 65 | 240 | 185 | 145 | 122 | 4-18 | 185 | 145 | 122 | 4-18 |
| 80 | 260 | 200 | 160 | 138 | 8-18 | 200 | 160 | 138 | 8-18 |
| 100 | 300 | 220 | 180 | 158 | 8-18 | 220 | 180 | 158 | 8-18 |
| 125 | 350 | 250 | 210 | 188 | 8-18 | 250 | 210 | 188 | 8-18 |
| 150 | 400 | 285 | 240 | 212 | 8-23 | 285 | 240 | 212 | 8-23 |
| 200 | 500 | 340 | 295 | 268 | 8-23 | 340 | 295 | 268 | 12-23 |
| 250 | 600 | 395 | 350 | 320 | 12-23 | 405 | 355 | 320 | 12-27 |
| 300 | 700 | 445 | 400 | 370 | 12-23 | 460 | 410 | 378 | 12-27 |
| 350 | 800 | 505 | 460 | 430 | 16-23 | 520 | 470 | 438 | 16-27 |
| 400 | 900 | 565 | 515 | 482 | 16-27 | 580 | 525 | 490 | 16-30 |
| 450 | 1000 | 615 | 565 | 530 | 20-27 | 640 | 585 | 550 | 20-30 |
| 500 | 1100 | 670 | 620 | 585 | 20-27 | 715 | 650 | 610 | 20-33 |
| 600 | 1300 | 780 | 725 | 685 | 20-30 | 840 | 770 | 725 | 20-36 |
Frequently Asked Questions
❓What is a ball type check valve and how does it work?
A ball type check valve uses a movable ball inside the valve body to control flow direction. When fluid flows in the correct direction, the ball is pushed away from the seat, allowing flow to pass. When reverse flow occurs, the ball is pushed back by gravity or pressure difference to seal the seat and block backflow automatically.
❓What materials are available for the ball type check valve?
Our ball type check valves are available in ductile iron (DI), cast iron, and stainless steel. The standard body and bonnet are made from ductile iron, bolts from carbon steel (CS), and sealing components from EPDM rubber, ensuring excellent corrosion resistance and long service life.
❓Can the ball type check valve be installed horizontally and vertically?
Yes. The ball type check valve supports both horizontal and vertical installation orientations. Its compact design allows flexible placement with minimal space requirements, making it suitable for a wide range of pipeline configurations in water treatment plants, industrial systems, and underground pipelines.
❓Is the ball type check valve suitable for wastewater or slurry applications?
Absolutely. The ball type check valve is specifically designed for media containing suspended solids, slurry, or wastewater. The self-cleaning ball seat design prevents clogging and ensures reliable long-term performance even in demanding conditions such as sewage treatment and chemical processing systems.
❓What pressure ratings are available for the ball type check valve?
Our ball type check valves are available in PN10 and PN16 pressure ratings. Detailed dimensional specifications for both ratings across DN sizes from DN50 to DN600 are provided in the dimensions table above, covering flange outer diameter, bolt circle diameter, and bolt hole configurations.
❓What are the main advantages of using a ball type check valve over other check valve types?
Compared to swing or lift check valves, the ball type check valve offers quieter operation, better sealing performance for low-pressure conditions, and superior resistance to clogging when handling media with solids. It also requires less maintenance due to its simple internal structure and self-cleaning seat design, resulting in lower operational costs over time.