Ball Check Valve

Size: 2″-12”(DN50-DN300)
Material: Ductile iron ASTM A536, 65-45-12
Type: MSS SP-126 Silent Check Valve, ANSI STANDARD, BS STANDARD
Design Standard: API594, JB/T8937, MSS SP-125
Connection:BS EN 1092-2 PN10/16/25, Flange to ASME B16.1 CL 125
Pressure Rating: 175PSI, 200PSI, 250PSI, 300PSI, PN10, PN16, PN25
Temperature: 0-80 ℃
Surface Treatment: ANSI/AWWA C550
Medium: Water, gas etc.

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Product Description

Products Details

What is Ball Check Valve?

The ball check valve is one of the check valves. The opening and closing parts are spherical, so it is called the ball check valve. It is used in the pipeline system. Its main function is to prevent the backflow of the medium and the reverse rotation of the pump and its driving motor. , and the discharge of the medium in the container; it can also be used for supplying pipelines for auxiliary systems where the pressure may rise above the pressure of the main system. It can be installed horizontally or vertically. It can be used for cold water, hot water, industrial and domestic sewage pipe networks, and is more suitable for submersible sewage pumps. The medium temperature is 0-80 °C. It can be installed at the water outlet of the pump to prevent backflow and water hammer from damaging the pump.

Product Drawing

No. Part Standard Specification
1 Body EN-GJS-450-10
2 Ball Aluminum ball +EPDM
3 Cover EN-GJS-450-10
4 Bolt Carbon steel Zinc plated
5 Nut Carbon steel Zinc plated
6 Flat Washer Carbon steel Zinc plated
7 O Rings NBR
8 Nut Brass HPb59-1
9 Washer EPDM
10 O Rings NBR
11 Nut Carbon steel Zinc plated
12 Screw Brass HPb59-1


DN PN Dimensions(mm)
inch MM L D D1 d C T n-φL
2″ 50 10/16 200 165 125 99 19 3 4-Φ19
2.5″ 65 10/16 240 185 145 118 19 3 4-Φ19
3″ 80 10/16 260 200 160 132 19 3 8-Φ19
4″ 100 10/16 300 220 180 156 19 3 8-Φ19
5″ 125 10/16 350 250 210 184 19 3 8-Φ19
6″ 150 10/16 400 285 240 211 19 3 8-Φ23
8″ 200 10 500 340 295 266 20 3 8-Φ23
16 12-Φ23
10″ 250 10 600 405 350 319 22 3 12-Φ23
16 355 12-Φ28
12″ 300 10 700 460 400 370 24.5 4 12-Φ23
16 410 12-Φ28

Principle of Ball Check Valve:

The ball check valve uses a rubber-wrapped ball as the valve disc. The principle is that under the action of the medium, it rolls up on the slideway in the valve body, and the valve opens.
Main features of ball check valve:
1), full diameter design, large flow.
2) Straight-through design, small flow resistance pressure loss.
3) The sealing performance is good, and the noise reduction is closed, which can reduce the water shock wave. Can be installed horizontally or vertically.

Malleable Iron SCC Short Compression Coupling NPT Thread

Application and Case

Products are used in fire protection system, water system, HVAC system, plumbing, gas system, irrigation system, etc.These products are used in many projects , such as China Taiwanese Building 101, Xiamen Building,Wuhan Expo Building and other famous landmark projects.


1. What is the minimum quantity of the order?
Answer: The purchase volume of mixed products is 4 tons

2. How long is the delivery time of the order?
Answer: The delivery time for general orders is about 30 days. If the order is urgent and we have stock, around 7 days.

3. What payment methods do you accept?
Answer: We accept payment terms such as TT, L/C, DP, Western Union, Paypal, etc.

4. Where is your departure port of shipment? Is it possible to deliver to the designated warehouse?
Answer: The port of departure of our goods is generally Tianjin Port or Qingdao Port. We can transport the goods to designated warehouses, such as Yiwu, Guangzhou, etc.

5. What certificates do your products have?
Answer: Our products have FM/UL certificates, and we cooperate with third-party quality inspection certification before the factory, such as SGS,TUV

6.What are the series of your products?
Answer: Our products are divided into heavy series, medium series and light series according to different markets and standards. In order to buy more competitive products for you, please communicate your purchasing needs with the salesperson.

7. Do product packaging cartons and labels support customization?
Answer: Packaging cartons and labels can be customized according to customer requirements.

8.Does the purchased product support customization?
Answer: The product supports customization, but there are purchase quantity requirements and mold costs. For details, please consult the salesperson.

9.What are the packaging methods of the product?
Answer: The packaging of the product includes carton packaging, pallet packaging, wooden box packaging, and woven bag packaging.