Check Valve

Check valve effects seal between valve core and body by fluid pressure. It is designed and manufactured in accordance with API spec 6A. it can be used interchangeably with the domestic and overseas equipments complied with the specification of API spec 6A.

Check Valves

  • Working Pressure: 2000psi ~ 20000psi
  • Nominal Bore Diameter: 1 13/16″ ~ 7 1/16″
  • Temperature Class: L ~ U
  • Material Class: AA ~ HH
  • Product Specification Level: PSL1 ~ PSL4
  • Performance Requirement: PR1 ~ PR2
  • Working Medium: petroleum, natural gas, water, mud, gas containing H2S or CO2

The metal-to-metal seal is between valve body and valve plug. It is attained by the pressure of medium. The higher pressure of the medium is, the better sealing property is. Valve chest can bear the pressure of pipeline at any time.

The valve body is made of the forging alloy steel. It has the strong mechanical performance and can bear high pressure. Security and reliability is guaranteed.

Instructions
According to the valve’s flow direction, install the valve body on the pipeline valve trim by the pressure upstream and downstream of the pressure to achieve movement and seal, thus the valve trim can’t be stuck.

Professional Manufacturer

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Strict Quality Control

We have a strong quality control team with an advanced laboratory. We test each batch of material and each hose.

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API Certificates

China Jingbo, founded in 1986, API certified producer, Certificate number: API Spec 7K-0376, API Spec 16C-0275, API Spec 16D-0109.

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Best Industry Experts

Since the early 1986s, Jingbo has successively introduced the design and manufacturing technology from world first class oilfield hose giants, and became the leading player in the industry oilfield field.

Trusted Partners

cnoocs
Accionistas Ecopetrol
petrobras
shell

API Certifications

API 7K-0376
API 16C-0374
API 16D-0140

Contact Us

Add: Chengxi Industrial Zone, Jing County, Hebei Province, China.