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OPW Engineered Systems
OPW Style 55 Swivel Joints

OPW Style 55 Swivel Joints

Vendor: OPW Engineered Systems

Coupling Type: Industrial / Specialty Couplings & Accessories

Description:

Styles 55 - 55F - 55FFT - 55FO - 55FT - 55TFT

Coupling Category:

Standard Swivel Joints

Overview

OPW Engineered Systems manufactures swivel joints for a broad range of uses in the chemical, petroleum, petrochemical, refining, mining, distilling, brewing, ink and paint industries, as well as farm irrigation and fertilizing. Design, plant and maintenance engineers use OPW swivels in flexible piping systems, loading arms, hose reels, sewer rodding and wastewater treatment equipment, and various types of process machinery. They also use our swivel joints in machine tool coolant transfer, drum filling applications, and in a variety of in-plant fluid and dry bulk transfer applications.

Versatility is the key to OPW Engineered Systems swivel joints. They make it possible for you to use rigid metal piping for loading and unloading fluids and dry product under pressure or vacuum without the difficulty or danger of handling heavy, cumbersome hoses.

Design Features

OPW Engineered Systems fabricated and cast ball bearing swivel joints allow you to construct a metal piping system that permits easy movement in any direction. Moveable, flexible and reliable, OPW Engineered Systems swivels are designed and built to the highest quality standards, including precision machining and 100% penetration welding, with special design features that include:


  1. Tight Seals
    • O-Rings provide a tight seal without hindering swivel action
    • Accurately machined and micro-finished grooves provide for minimal seal wear
    • Available in Buna-N, Viton®, EPT, Neoprene, Kalrez® and other seal materials as required
    • PTFE seals are available as spring energized or silcone/Viton® encapsulated
  2. True Ball Bearing Race Alignment
    • Body and tail sections are locked together by a double row of ball bearings
    • Raceways are machined to precise tolerances
    • Double raceway design assures proper alignment and prevents binding caused by temperature changes and heavy radial loads
    • Carbon steel swivels have hardened races to maximize load-carrying capability
  3. Protected Bearing Chamber
    • Protective inner O-ring seal prevents product from entering bearing chamber
    • Outer seal keeps rain, dirt, and other contaminants out
    • Both seals hold in lubrication
  4. Long-Life Bearings
    • Ball bearings are hardened, precision-ground steel
    • Stainless steel swivels have stainless steel bearings
    • All OPW swivels are available with stainless steel bearings on special order
  5. Easy Lubrication
    • All OPW swivels are pre-lubricated at the factory
    • All 3/4", 1", and submerged swivels are permanently lubricated
    • A grease fitting between races that accepts a standard grease gun is available for swivels that require field lubrication
    • Non-lubricating swivels are available on special order
  6. No Field Adjustment Necessary
    • Balls are held in place by factory-installed plugs that never need to be adjusted to maintain bearing performance Convenience of Choice
    • Available in a variety of sizes beginning at 3/4" and up
    • Available in threaded, flanged, and butt welded ends
    • Steam jacketed and split flange swivels are also available


Counterweighted Loading Arm
Counterweighted loading arms of this type use basic Style 55 inlet swivels. Style 55FO inlet swivel is shown. Aluminum swivels are not recommended for this application.


  Material  Model  Size (inches)  Dimensions 
Thread x Thread
Style 55
Steel, Fabricated  3455  2, 3, 4  Steel & Stainless Steel
Stainless Steel, Fabricated  3955  2, 3, 4  Steel & Stainless Steel
Aluminum  3655  3, 4  Aluminum, Ductile Iron, & Bronze
Ductile Iron  3855  2, 3  Aluminum, Ductile Iron, & Bronze
  Material  Model  Size (inches)  Dimensions 
Flange x Flange
Style 55F
Steel, Fabricated  3455F  2, 3, 4, 6  Steel & Stainless Steel
Stainless Steel, Fabricated  3955F  2, 3, 4, 6  Steel & Stainless Steel
  Material  Model  Size (inches)  Dimensions 
Flange x TTMA Truck Flange
Style 55FFT
Steel, Fabricated  3455FFT  3, 4  Steel & Stainless Steel
Ductile Iron  3855FFT  Aluminum, Ductile Iron, & Bronze
  Material  Model  Size (inches)  Dimensions 
Flange x Thread
Style 55FO
Steel, Fabricated  3455FO  2, 3, 4  Steel & Stainless Steel
Stainless Steel, Fabricated  3955FO  2, 3, 4  Steel & Stainless Steel
Aluminum  3655FO  3, 4  Aluminum, Ductile Iron, & Bronze
Ductile Iron  3855FO  Aluminum, Ductile Iron, & Bronze
  Material  Model  Size (inches)  Dimensions 
 TTMA Truck Flange
Style 55FT
Aluminum 3655FT 4 Aluminum, Ductile Iron, & Bronze
  Material Model Size (inches) Dimensions
 Thread x TTMA Truck Flange
Style 55TFT
Ductile Iron 3855TFT 3 Aluminum, Ductile Iron, & Bronze


Steel & Stainless Steel Dimensions

Aluminum Dimensions

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