Tekflow supplies special solutions to link your connections like spools or adapter flanges, crossovers, pup pieces, studded / flanged crosses and tees. Those adapters can be in line with specific customer requirements and conforming to API-16 A and 6A.

GRAYLOC Clamp to Wecco pup piece
GRAYLOC Clamp to Wecco pup piece

Adapter Flanges

Adapter Flanges in all sizes and pressure ratings. Popular Adapter Flanges are Double studded adapter flanges, companion flanges, flange x union adapters. Customers may use Adapter Flanges for transition in nominal size and/or pressure rating, or customer specified thicknesses, consistent with design considerations.

Adapter Spools

Adapter Spools in every size and pressure rating. Adapter Spools have end connections that differ from one another in nominal size and /or pressure rating.


Spacer Spools

Spacer Spools in all sizes and pressure ratings suitable for Well Head extension, B.O.P. spacing, and Choke, Kill and Production Manifold applications. Spacer Spools usually have the same nominal end connections. Customers may specify outlets.

Drilling Spools

Drilling Spools in every size and pressure rating.

Customers may specify any combination of end connections and outlet connections as well as overall height or length (OAL) and outlet extension.

Studded Crosses and Tees

Studded Crosses and Tees according to the designs and tables in API Spec 6A.

Flanged Crosses and Tees

Flange Crosses and Tees according to the design requirements and face to centerline requirements of API Spec 6A.

Studded adapters
Studded adapters

Swivel Joints

Swivel joints
Swivel joints

Available in sizes 3/4″ through 3  » up to 15,000 PSI non-stock cold working pressure, Swivel Joints offer the following features.

  • Minimum flow restriction
  • Heavy duty hex head style ball loading plug
  • Grease retainer ring (ensures clean ball race)
  • Standard packing units (operating temperature to 2250 F)
  • Superior hardened ball races ensure uniform surface hardness and depth for longer life under severe thrust and radial loading
  • Standard Swivel Joints are provided with API line pipe threads
    Other end connections are available on request
  • Available for standard and sour service
  • All sizes are available in 8 styles, for 360 rotation in 1, 2 or 3 planes

Pup Joints

Pup joint
Pup joint

Available with integral, NPST or welded union end connections from 10,000 to 15,000 PSI NSCWP for standard and sour service.

Steel Hose Assemblies

High pressure cementing and circulating hose incorporate swivel joints of forged steel with superior quality hardened ball races and high pressure type packing units.

Long Radius Swivel Joints & Short radius Swivel Joints