Flow Iron

BEST Quality and Longevity

Flow Iron Products Include: Long Radius Hose Loops, Integral Fittings, High Pressure Swivels, Steel Hoses, Flange Adapters, Chokes, Temporary Pipe Restraining Systems, Long Radius Extra High Pressure Swivels, Pup Joints, Plug Valves, Hammer High Pressure Unions



Flow Line Equipment

Long Radius Hose Loops

Sizes 2" and 3"
10,000 and 15,000 PSI Integral, NPST, and LPT
for Standard and Sour Service

Integral Fittings

2″ and 3″ 10,000 PSI to 15,000 PSI Ells, Tees, Crosses and Crossovers for Standard and Sour Service

Check Valves

Sizes 3″ and 7″
3″ 1502 HD Wing Nut
3″ Clamp Hub
7″ Check Valve

Long Radius Extra High Pressure Swivels

Sizes 2″- 4″
10,000 PSI to 15,000 PSI for Standard and Sour Service

Pup Joints

Sizes 1″ – 4″
6,000 PSI to 15,000 PSI Threaded and Integral & NPST for Standard and Sour Service

Plug Valves

Sizes 1″ – 3″
6,000 PSI to 15,000 PSI for Standard and Sour Service



View Sizes

  • 1502 swivels joints (2”, 3”, and 4”)
  • Plug valves (1”x2”, 2”x2”, 3”x3”)
  • Pup Joints (2”, 3”, 4”)
    • Integral o NPST
    • LPT
  • Integral Joints
    • Crossover
    • Tees (2” and 3”)
    • Short Radius Elbow (2” and 3”) o Block Lateral (4”)
  • Check Valve (3” and 7″)
  • Unions

BEST 1502 swivels are made of AISI 4715 for 1502 iron.

To ensure long life under intense hydraulic fracturing environments, BEST swivels have implemented the following design features:

Made from AISI 4715 that allows 

  • High Yield Strength while maintaining high impact properties to increase
    service life and prevent fatigue cracking.

Long sweep elbow design with optimized flow through bore

  • Reduces flow turbulence resulting in slower erosion

Hardened races and bore from carburization

  • Strengthen races from high-stress bending
  • Case-hardened bore mitigates erosion

BEST 3” T3 swivels contain additional inclusive features:

Proprietary Packing seal design

  • BEST wide packing internal swivel seal

Triple Step Races

Proprietary Clamp Ended Hub design

  • Superior design to the 3” male hammer union connection
Power Ends
Pump Parts

Work with the BEST.

We understand the challenges of today’s operating environment and focus on continuous improvements to innovate products that revolutionize your operational efficiency, safety, and economics.

1329 Markum Gate Way Rd.
Ft. Worth, Tx.

945 Bunker Hill Rd.
Houston, Tx 77024

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