Couplings

  • ● Premium Couplings
  • ● Semi-Premium Couplings
  • ● API 4 1/2 to 13 3/8  J55 K55 L80 N80 P110
  • ● Limited Service
  • ● Coupling Conversion
  • ● Waterwell

Couplings are used to connect casing and tubing down-hole in oil and gas wells. In general, the joints of casing and tubing pipe are not connected to each other, but, for reasons of connective strength, are connected to couplings, which are in turn screwed to the next length of casing or tubing. Casing and tubing are permanent fixtures in a well. The casing is larger and is cemented into the hole. The tubing is suspended inside the casing. Typically, the oil, gas or oil/gas mixture travels through the tubing to the wellhead assembly at the surface.

Couplings are a very small percentage of the price of a string of pipe. However, frequently they are purchased on a very fast turnaround so the customer may ship an order of pipe to its customer. The end user is the oil company.

We are one of the most trusted manufacturers for the major domestic mills and distributors. We carry a very large inventory of couplings and coupling stock that enables us to react to our customers quickly for orders large and small.

Contact us for your coupling needs today!

Thread Capabilities at LB Pipe

TMK

  • DQX TORQUE
  • ULTRA DQX
  • BPN
  • ALL NON-FLUSH JOINT TMK CONNECTIONS

LONE STAR PIPE

  • EZGO HT
  • EZGO HTGT
  • HARRIS HTGT

REPUBLIC TUBE

  • BK
  • HASS (PENDING)

US STEEL

  • US IMPROVED BUTTRESS

GB TUBULARS

  • ALL GB CONNECTIONS

GOST

  • OTTM
  • OTTG

TENARIS

  • TXP PINS

TEJAS

  • ALL TEJAS CONNECTIONS

TPCO

  • TP-BM(S)

API 5CT / 5L

  • ALL API CONNECTIONS