Pup and Swivel Joints

Integral Pup Joint

Integral Pup Joints are straight tubes with union connections on both ends, widely used for transporting high pressure flow in fracturing manifold, cementing manifold, maintenance manifold and test manifold.

Ecostain Integral Pup Joints are forged from premium alloy steel, handled by advanced metal melting and heat treatment technology. Based on the analysis on weight and resistance to erosion,Ecostain has improved wall thickness and inner diameter to extend service life.

  • Available in butt weld, integral, threaded (LPT & NPST)
  • Forged from Alloy Steel one piece construction
  • Sizes from 2” to 3”. Integral Pup Joint available in lengths up to 12 feet while threaded / butt weld is available up to 20 feet
  • Available in 6,000 to 20,000 PSI pressure rating
  • All products manufactured from forged steel which meets ASTM and/or AISI standards
  • Available in both standard and H2S service

Typical Applications Include:

  • Well Testing
  • Fracturing
  • Cement Manifolds

Features:

  • Strictly controlled element content of raw materials and proper heat treatment technology ensure mechanical performance.
  • Optimized design parameters provide excellent erosion resistance, extending service life.
  • Complete size and length option satisfy various demands.

Swivel Joint

Ecostain swivel joints are forged from premium alloy steel, handled with advanced metal melting and heat treatment technology to ensure strength and hardness. Based on analysis of weight, resistance to abrasion and blasting, Ecostain developed optimum wall thickness for swivel joints, introduced advanced equipment and machining technology to ensure the uniformity of wall thickness, the longest service life and highest safety factor with the weight unchanged. Special seal design and seal material significantly increase sealing capability and service life.

Features:

  • Repair kit is available for easy maintenance.
  • Integral design of metal frame plus rubber delivers reliable seal.
  • Continuous and uniform wall thickness delivers excellent resistance to erosion and high safety factor.
  • Integral hardening treatment allows very hard surface and tough core.

Types of Swivel Joints:

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