Tubing String Testing (TST) Valve
Elaine Li
Contact person
Basic Information
| Place of Origin | China (Mainland) |
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The tubing string testing (TST) valve is a full-opening valve used to pressure-test the workstring while running in the hole. The valve is operated after it is stung into a permanent packer or after a retrievable packer is set. The TST valve requires a differential pressure between the annulus and the tubing to shear. The TST valve can also be used for pipe flexing if it is run below an annulus pressure-responsive circulating valve. The TST valve consists of: flapper valve and spring shear pin section locking dogs Features and Benefits Flapper valve requires only 4 psi to open. Testing string can be pressure-tested as many times as required as it is run in the hole. Valve shear rating can be pre-determined at 500 psi increments. Valve can also be used for pipe flexing.
Delivery terms and packaging
Packaging Detail: Iron or woodern carton Delivery Detail: as per actual qty
Port: China Port or as per requirement
Payment term
Letter of credit
Telegraphic transfer
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