Hammer Unions

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  • Three lug nuts and self-locking ACME threads provide quick make-up and break-out
  • Color coded for quick identification
  • Unique identification for sour gas unions
  • Meet or exceed National Association of Corrosion Engineers standard NACE MR-01-75 and API RP-14E
  • Manufactured from quality steel meeting ASTM and/or AISI standards
  • All unions provide pressure-tight & positive sealing for low-pressure services (500 to 2,000 PSI)
  • The spherical surface male sub and angular surface female sub form a metal-to-metal seal, the ball and tangent provides a perfect seal
  • Range from 1/2” to 12” with cold working pressures from 500 to 20,000 PSI
  • Fully interchangeable with most major brands of Hammer Unions
  • The female sub of the Hammer Seal Union welds to a schedule 40/80 pipe
  • These Hammer Unions are recommended for suction and low pressure lines
  • Available in threaded and socket weld ends
  • These Hammer Unions are used in low pressure manifold lines and air, water, oil or gas applications
  • Available in both threaded and but weld ends
  • Metal to metal sealing surface
  • These Hammer Unions are used in low pressure manifold lines and air, water, oil or gas applications
  • Available in threaded ends
  • Subs with flat face
  • O-ring recommended for line connections where straight breakout of short pipe segments is required
  • 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
  • These Hammer Unions are used in air, water, oil or gas applications
  • Available in threaded ends
  • Subs with flat face
  • O-ring recommended for line connections where straight
    breakout of short pipe segments is required
  • These Hammer Unions are similar to Fig 200 with a secondary seal to supplement the metal-to-metal design
  • Recommended for use in corrosive environments
  • Available in both threaded and butt weld ends
  • Available in butt weld schedules 40 and 80
  • Fig 207 Hammer Unions are fully interchangeable with figure 200 and 206 unions
  • Used to blank off the end of a line
  • O-ring is provided in blanking cap to ensure leak proof seal
  • Available in both threaded and butt weld ends
  • Available in butt weld schedules 40 and 80
  • These Hammer Unions are used in production systems with electrolytic corrosive environments
  • No metal to metal contact between the subs
  • Laminated insulating rings provide 35 million Ohms resistance across the union. O-ring in male sub provides a positive primary seal
  • Resilient seal ring in female sub provides secondary protection from corrosion
  • Available in threaded ends
  • These Hammer Unions have a flat face design which permits straight breakout for lateral removal of valves and other fittings for inspection or replacement
  • Available in threaded ends
  • These Hammer Unions are used in manifold & line connections, pump suction and mud services
  • Available in both threaded and butt weld ends
  • 3″ through 12″ sizes have o-ring for primary seal
  • Available in butt weld schedule 80
  • These Hammer Unions are used in water, oil, gas and mud service
  • Replaceable, lip type rubber seal provides primary sealing
  • Available in both threaded and butt weld ends
  • These Hammer Unions are in high pressure applications for choke and kill lines, cementing and acidizing. Replaceable, lip type rubber seal provides primary sealing up to 4″
  • 5″ and 6″ sizes have o-ring for primary sealing
  • Available in both threaded and butt weld ends
  • 6″ unions are only available in butt weld for sour service
  • These Hammer Unions are used in air, water, oil, mud, gas service, high pressure manifold, drilling rig where alignment of piping components is a problem
  • Replaceable o-ring on male sub provides primary sealing
  • Available in both threaded and butt weld ends
  • 5″ unions are available in butt weld ends only
  • Available in butt weld ends
  • Face of male & female subs is perfectly square
  • Provided with lip type seal ring
  • These Hammer Unions are use in cementing, acidizing, choke and kill lines
  • Replaceable lip type rubber seal
  • Available in both threaded and butt weld ends
  • Replaceable lip type rubber seal
  • Available in butt weld ends only
  • These Hammer Unions are specially designed for sour gas service
  • Replaceable lip type rubber seal with stainless steel anti extrusion ring
  • Conform to NACE standard MR-01-75 and API-14E
  • Available in butt weld ends only
  • Available in threaded ends only
Note : Other sizes and end connections for special requirements available upon request.

HOSE NIPPLE UNIONS

Windlass manufactures Hose Nipple Unions from 1″ to 4″ for all pressure ratings

INTEGRAL BLIND SUBS

Windlass manufactures Blind Male and Female Subs with NPT ports with or without SS chain for all sizes ranging from 1″ to 10″ for all pressure ratings

O-RINGS & SEAL RINGS

  • O-Rings & Seal Rings for hammer unions are available in nitrile for standard service and viton for H2S service
  • O-Rings for hammer seal unions are available in stock at our distribution center in Houston

RETAINER RINGS & RETAINER SEGMENTS

Retainer Rings and Retainer Segments are used for assembly of a wing nut with a male end of hammer union. These are manufactured in all sizes and figure of hammer unions

Hammer Seal Unions

  • Designed to quickly connect mud tanks with flanged connections
  • Nitrile o-ring provides a compressive non leak seal that limits the line fluid pressure to 150 PSI
  • Tank Unions accept up to 7o of pipe misalignment
  • Available in stock at our distribution center in Houston