Shaanxi FYPE Rigid Machinery Co., Ltd.
Main products:Mud Pump Liner,Integral Blade Stabilizer,Mud Pump Piston,Stabilizer Forging
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Contact Us
  • Contact Person : Mr. Wei Rain
  • Company Name : Shaanxi FYPE Rigid Machinery Co., Ltd.
  • Tel : 86-29-88895909
  • Address : Shaanxi,Xi'an city,No.36th South Fenghui Road, hi-tech zone, xi'an city
  • Country/Region : China

API Standard back off sub

API Standard back off sub
Product Detailed
API Standard back off sub 1. Standard: API 2. Delivery: within 10 days

API Standard back off sub

API Standard back-off sub

The back-off sub also named back-off spear. There is usually a left hand thread for tool joint at the upper part of the body, while the expansion sleeve has right hand thread. The guide cone at the lower part can make the expansion sleeve of the sub conveniently screw the fish connection. Raising the drilling tool, the expansion sleeve can hold the fish firmly, then reversing.

Specification

Type

OD    (mm)

ID   (mm)

Connection(API)

Thread for Fishing(API)

OAL   (mm)

ZDK105-1-00

105

20

NC31 LH

2 7/8EUE

572

ZDK121-1-00

121

22

NC38 LH

3-1/2EUE

600

ZDK121-2-00

121

22

NC38 LH

NC38

630

ZKD159-1-00

159

28

NC50 LH

NC50

690

We could provide you qualified API Back-off Sub with positive price. If you have any interest, welcome to contact with me!

API Standard back off sub



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