OCTG - Drill Stem Sub

A sub is a special short length of threaded pipe used to connect drill pipes to drill collars, with a drill pipe connection on one end and a drill collar connection on the other.

When a bit sub is used to convert connectors of different types or sizes, it is called a crossover sub. The sub that connects the drill bit to the last drill collar is the bit sub.

Products are manufactured in accordance with API Spec 7 RP7G as applicable.

There is a wide range of subs available, including:

  • Straight Crossover Sub (Box/Pin, Box/Box, Pin/Pin)
  • Bottleneck (reduced section) Sub (Box/Pin, Box/Box, Pin/Box, Pin/Pin)
  • Crossover Sub with Float Bore (Box/Pin, Box/Box, Pin/Box)
  • Bit Sub with Float Bore (Box/Box)
  • Bit Sub without Float Bore (Box/Box)
  • Top Drive Saver Sub (Pin/Pin)
  • Kelly Saver Sub without rubber protector (Box/Pin)
  • Kelly Saver Sub with a stretched on rubber protector (Box/Pin)
  • Lift Sub (18 deg taper or square shoulder) (None/Pin, Box/Pin)
  • Lift Plug (None/Pin)

Options:

  • API Pin Stress Relief Groove and Box Boreback
  • Cold Rolling
  • Phosphate Coating
  • Proprietary Connections of Leading Manufacturers
  • Proprietary Connections of Leading Manufacturers
  • Rubber Sleeve Protectors (For Kelly Saver Subs only)
  • Third Party Inspection

ADAPTOR SUB ENQUIRY

Please fill in as many fields as you can in the form below for your enquiry. If you’re unsure, then please leave blank. For multiple product enquiries, please email or call us directly.
Contact Details
*
* *
*
Specifications of Subs Required
Options:

CONTACT

We are open to discussion on the way you might like to structure the deal, payment plans or what you might have in mind.

To talk to us about your requirements now, please contact:

Doreen Ong
General Manager
+65 6505-9206

Alternatively, just fill up our Enquiry Form on the right and we will be in touch with you by the next working day.

News & Highlights


New Product for SALE !!!

1) CLUTCH ASSEMBLY - AIRFLEX P/N 142677 JL, 42-VC-1200 WITH FOUR QUICK RELIEF VALVES ( IDECO P/N IA-246 )

2)CLUTCH ASSEMBLY - AIRFLEX P/N 142671 JL, 46-VC-1200 WITH FOUR QUICK RELIEF VALVES ( IDECO P/N IA-244 )

3) Balluff Micropulse Transducer, Linear Type, BTL5 4 to 20 mA output, 700 mm Length

4) FAG 29388 Thrust Roller Bearing, Type EM-B. (440 ID X 680 OD X 145MM HT)

Please contact us at +65 6505 9200 or [email protected] for a quotation today.