Full-opening check valves are designed in accordance with API6D, it is ideal for crude oil and gas transportation to avoid the reverse flow. The full-opening design can be capable for pig ball cleaning services. For big size, a dashpot device is optional to protect the sealing surface with controlling the disc closing time.
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Fax : 010-64108980-808
Email : firstname.lastname@example.org
Address : Room A2,18F Hanwei Plaza,No.7 GuangHua Road, Chaoyang District,Beijing,China