Weld On Swivels

The Liquip/OPW range of weldable swivels are used for the fabrication of loading arms and pipework requiring up to 360° rotational joints.

Available in a variety of materials, sizes and styles to meet virtually any application. They are also machined with pre-prepared ends for welding directly to pipe or tube.


Features & Benefits
  • Cost-effective way of achieving a rotating joint, for loading arms or other equipment requiring swiveling joints.
  • Range of Sizes Available 3/4 inch up to 12 inch sizes.
  • Available in a variety of materials and sizes to meet virtually any application.
  • Sealing is enhanced by the purpose designed primary and secondary seals, which isolate the bearing pack from product leaks.
  • In the unlikely event that the primary seal leaks, the  product is contained by the O-Ring before it can wash grease from the bearings causing them to fail in operation.
  • Any leaks are immediately visible from a tell-tale weep hole (SJW series).
  • The greasing system incorporates the Liquip trade-mark pressure relief outlet to ensure correct lubrication, by ejecting old grease and particles that can cause wear (SJW series).
  • Dual Race Ball Bearings Ensures true alignment under heavy loads (bearings protected by seals on both sides) (3000 series
Technical Information

SJW Series
Operating temperature
-20°C to +220°C.


Stainless Steel or Mild Steel.

Working pressure
1,100 kPa.

Test Pressure
1,650 kPa.

Weld on.


3000 Series

Metal Options

  • Aluminum (ASTM B26, A356 T6)
  • Bronze ( ASTM B62-83600)
  • Carbon Steel (ASTM A105)
  • Ductile Iron (ASTM A-536)
  • Stainless Steel (ASTM A351-CF3M/CF8M)

Seal Options

  • Buna
  • Fluorocarbon
  • PTFE
  • EPDM
  • Neoprene
  • Kalrez

Pressure/Temperature Guide

Ordering Information

SJW Series - 4" Only

SJW100MMVZ - SJW Weld-On 4” Swivel Mild Steel, Viton Main Seal.

3000 Series - 3/4" to 12"

3x20W-xxxx - 3000 Series weld on Swivel.


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