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[Province: Shaanxi ]   
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Tubing string testing valve TST valve
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Tubing string testing valve TST valve

Price: 500.0~10000.0 USD
Trade Term: FOB
Payment Terms: T/T
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Basic Info.
  • Application: oil well testing 
  • Type: full bore drill stem testing 
  • working pressure: 10000psi ~ 15000psi 
  • service: H2S 
  • standard: NACE MR0175 
  • Condition: New 
  • Size: 5" 
  • Operate: ANNULAR PRESSURE OPERATED 
  • Model No.: TOP-DST-10 
  • Place of Origin: Shaanxi  
  • Min.Order: 1 Piece/Pieces
  • Means of Transport: Ocean
Supply Capacity
  • Production Capacity: 8 pcs/month
  • Packing:polywood case
  • Delivery Date: 15~30 days
TST valve

The tubing string tetsing valve TST valveis operated after it is stung into a permanent packer or 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 pip flexing if it is run below an annulus pressure-responsive circulating valve.
In downhole operation, the valve can not be closed after open.
When running in the hole, the tester valve must run in downhole in opening condition, after string testing finished, increasing annulus pressure made the flapper valve open, also can process closing well operation for tester valve(pressure-responsive valve).
The TST valve consists of:   
• Flapper valve and spring.
• shear pin section
• locking dogs

Tubing string testing valve TST valve
Oil well drill stem testing Tubing string tester valve TST valve

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Ms. Elaine
Tel: 86-29-81779342
Mobile: 13629207466
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XI'AN ZZ TOP OIL TOOLS CO.,LTD
RM22808,SHANGPIN INTERNATIONAL,NO.88GAOXIN ROAD,HI-TECH ZONE, Xi'an, Shaanxi, China (Mainland)
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