| Customization: | Available |
|---|---|
| After-sales Service: | Yes |
| Warranty: | 1 Year |
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Check valve
A check valve is installed about two to three joints above the ESP pump to keep the tubing full liquid when the pump is off. So that, it eliminates the time it takes to raise the fluid from its static fluid level to the surface. In addition, it eliminates the protective shutdown time for fluid fallback.
Check valves are recommended for use in the tubing string for ESP system to keep the discharge-tubing full of fluid when the pump is off. The check valve allows for a full column of fluid/head for the pump to restart against, thereby; eliminating the possibility of damage to the pumping system that may be attributed to insufficient head. It will also eliminate fluid from flushing back through the pump enabling a quicker restart. The check valve is run generally two or three joints above the pump. If the check valve is not installed, the pump should not be started until the fluid column has had a chance to equalize, eliminating the chance for a twisted shaft in the pump, or a burned cable or motor. (A minimum of thirty minutes is recommended.) When a check valve is used, it is recommendedtt to install a drain valve.
Applicable Industries: Energy & Mining
Use::Well Drilling
Place of Origin: Shandong, China
Brand Name: Zhao Xin
Material: Alloy
Type: Tubing Drain
| Size | Length (Ft) | Weight (Lbs) |
| 2-3/8" OD 8RD EUE Tubing | 0.7 | 9 |
| 2-3/8" OD 8RD EUE Tubing | 0.7 | 9 |
| 2-3/8" OD 10RD Reg Tubing | 0.7 | 9 |
| 2-3/8" OD 10RD Reg Tubing | 0.7 | 9 |
| 2-7/8" OD 8RD EUE Tubing | 0.7 | 13 |
| 2-7/8" OD 8RD EUE Tubing | 0.7 | 13 |
| 3-1/2" OD 8RD EUE Tubing | 0.8 | 17 |
| 3-1/2" OD 8RD EUE Tubing | 0.8 | 17 |
| 3-1/2" OD 10RD Reg Tubing | 0.8 | 17 |
| 3-1/2" OD 10RD Reg Tubing | 0.8 | 17 |
| 4-1/2" OD 8RD EUE Tubing | 0.8 | 23 |
| 4-1/2" OD 8RD EUE Tubing | 0.8 | 23 |
| 4-1/2" OD 10RD Reg Tubing | 0.8 | 23 |
| 4-1/2" OD 10RD Reg Tubing | 0.8 | 23 |
Dongying Zhaoxin Industry and Trade Co.,Ltd is an ISO-9001, ISO-14001, ISO45001 certified company and has all the quality systems in place for design, planning,manufacturing and quality monitoring & traceability to ensure that Dongying Zhaoxin Industry and Trade Co.,Ltd products match the highest quality & reliability Standards similar to any International major in this field.
Dongying Zhaoxin Industry and Trade Co.,Ltd with perfect attitude, product and service, is going to make further development together with customers at home and abroad .
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