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Hammer Unions

Gaytri offers a comprehensive range of standard and sour gas Hammer Unions. Each union is thoroughly inspected to ensure long, dependable service in the most extreme conditions. Three lug nuts and self-locking ACME threads provide quick make-up and break-out.

Meet or exceed National Association of Corrosion Engineers Standard NACE MR-01-75 as and where applicable. Manufactured from quality steel and other alloy meeting ASTM, UNS and/or AISI Standards.

The spherical surface male sub and angular surface female sub form a metal-to-metal seal. The ball and tangent provide a perfect seal.

Range from ½” to 12” with cold working pressures from 500 to 20,000 PSI.

Please Contact our Technical Department in case

  • You have special materials and requirements
  • Details such as sizes and pressure / temperature rating are needed

Hammer Unions are used in general service manifold lines and air, water, oil or gas applications.

Available in both threaded and but weld ends.

Metal to Metal Sealing surfaces.

hammer union 100

Figure 100

  • These Hammer Unions are used in low pressure manifold lines and air, water, oil or gas applications.
  • Available in both threaded and butt weld ends
  • Metal to Metals Sealing Surface
hammer union 200

Figure 200

  • These Hammer Unions are used in general service manifold lines and air, water, oil or gas applications
  • Available in both threaded and butt weld ends
  • Metal to metal sealing surface
  • Available in butt weld schedules 40 and 80
hammer union 400

Figure 400

  • These Hammer Unions are used in manifold & line connections, pump suction and mud service
  • Available in both threaded and butt weld ends
  • 3” through 12” sizes have o-ring for primary seal
  • Available in butt weld schedule 80
hammer union 600

Figure 600

  • These Hammer Unions are used in steam service, boiler connections, manifold and line connections for production, drilling and well servicing
  • Available in bronze seating
  • Will not rust in water services
hammer union 1502

Figure 1502

  • These Hammer Unions are used in cementing, acidizing, choke and kill lines
  • Replaceable lip type rubber seal
  • Available in both threaded and butt weld ends