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Stainless steel 1 inch socket weld union fitting, silver metallic finish

Smith-Cooper

Smith-Cooper 1" Socket Weld SS Union 304 Class 3000 Schedule 80

SKU CH-3JTJ-MR5N4

Stainless-steel 304 socket-weld union rated Class 3000 for Schedule 80 pipe

  • Stainless steel 304 resists corrosion in harsh piping environments
  • Class 3000 rating handles high-pressure service up to specification limits
  • Schedule 80 socket weld ends match heavy-wall pipe dimensions
  • Union design allows quick disassembly for maintenance and inspection
  • 1-inch nominal size fits standard industrial piping systems

Smith-Cooper 1" Stainless Steel Union

This Smith-Cooper socket-weld union is manufactured from Grade 304 stainless steel and rated to Class 3000 for Schedule 80 piping. It provides a 1-inch female socket connection on each end with a 2 3/8-inch centre-to-centre dimension. The fitting is supplied new and ready for installation in compatible piping systems.

Class 3000 Schedule 80 Upgrade

Moving to a Class 3000 Schedule 80 union from a lower-pressure class or thinner-wall schedule increases the maximum allowable working pressure for demanding service conditions. The jump is worthwhile when the system design calls for the higher pressure rating and the thicker Schedule 80 wall thickness to match the adjoining pipe.

High-Pressure Stainless Piping Builders

This union suits engineers and pipefitters assembling Schedule 80 stainless systems that require a Class 3000 socket-weld joint. It is not intended for applications needing a different pressure class, pipe schedule, material grade, connection type or nominal size.

Highlights

  • Stainless steel 304 resists corrosion in harsh piping environments
  • Class 3000 rating handles high-pressure service up to specification limits
  • Schedule 80 socket weld ends match heavy-wall pipe dimensions
  • Union design allows quick disassembly for maintenance and inspection
  • 1-inch nominal size fits standard industrial piping systems

Specifications

BrandSMITH-COOPER

Questions about this item

Will the 1 in socket-weld ends fit Schedule 80 pipe without reaming?

The union is made for Schedule 80 pipe; the socket bore matches that wall thickness so the pipe seats fully without reaming.

What is the correct tightening sequence for the three-piece union body?

Hand-tighten the nut, then apply one to one-and-a-half turns with a wrench while holding the body steady to avoid twisting the socket welds.

How often should the PTFE seat gasket be inspected or replaced in a 304 stainless system?

Inspect the gasket at each scheduled shutdown; replace it if you see compression set, cracking or any weeping at the joint.

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