8000 Series Endura Split Flange Swivels

The Endura™ Dual Split Flange (DSF) swivel joint from OPW® Engineered Systems represents the best in swivel technology. Specifically designed for the transfer of hazardous materials such as acids, solvents, petrochemicals and other toxic fluids, Endura™ sets the standard in Loading Arm Swivel performance.

  • Standard Sizes: 2 in., 3 in., 4in.
  • Standard Materials: Carbon Steel, Stainless Steel
  • Standard Seals: Buna-N, Fluorocarbon, PTFE, EPDM, Neoprene
  • End Connections: FNPT, 150/300 ANSI Flanges, Butt Weld

Features/Benefits

  • Endurance – Heavy-duty construction and unique design features result in long-life, hassle-free operation
  • Improves Uptime Performance – Endura™ DSF swivel technology, combined with the most user-friendly counterbalance solutions,results in LESS DOWNTIME–LESS LABOR– LESS COST!
  • Lowest Overall Cost of Ownership – Optimized performance, downtime prevention and reduced maintenance time and costs make this the best overall loading arm solution currently available.
  • Redundant Sealing for added safety!
    • Incorporates a main seal, back-up seal, and environmental seals
    • If main product seal ever leaks due to normal wear, the back-up seal contains the fluid
    • Any main seal leakage would be channeled to leak detection port
    • Environmental seal provides a third layer of protection
  • Bearing Module for easy maintenance
    • Deep groove replaceable dual & single race ball bearing technology
    • Easy replacement or rebuild options
    • Ball removal not required to access main seals
    • Endura™ 8800-8900 series feature ALL stainless steel construction
  • Easy Maintenance
    • Simply unbolt sealing flanges to access seals
    • No ball bearings to remove
  • Leak Detection Port
    • In the event of main seal leakage, fluid would be channeled to leak detection port
    • Quick & easy way to monitor performance so that maintenance can be performed
  • Purge Port
    • For critical applications, an inert gas can be injected at leak detection/purge port
    • Inert gas pressure higher than product pressure to virtually eliminate risk of fugitive emission.
    • Recommended for your extreme applications!

Swivel Styles

 

 

Order Guide

8000 Series Swivel Order Guide

8000 Series Seal Kits

Size

Buna

Fluorocarbon

PTFE/Silicone

EPDM

Kalrez®

2”

8400RK-0201

8400RK-0202

8400RK-0203

8400RK-0204

8400RK-0209

3”

8400RK-0301

8400RK-0302

8400RK-0303

8400RK-0304

8400RK-0309

4”

8400RK-0401

8400RK-0402

8400RK-0403

8400RK-0404

8400RK-0409

All Endura DSF Seal Kits include (2) Main seals, (1) Back-up seal and (3) PTFE encapsulated Fluorocarbon environmental seals. Also included are required seal spacers and hardware.

Technical

Materials

Materials

Carbon Steel

Stainless Steel 

Sealing Flange 

ASTM A350-LF2 Class 1

ASTM A351-CF3M 

Body 

ASTM A350-LF2 Class 1* 

ASTM A351-CF3M 

Tail

ASTM A350-LF2 Class 1* 

ASTM A351-CF3M 

Elbow 

ASTM A234 WPB 

ASTM A351-CF3M 316L 

150/300 lb Flange 

ASTM A105 

ASTM A351-CF3M 316L 

Bearing 

Grade 200 CST 

Grade 400 CST 

Bolts 

A193 B7 

A193 B8M Class 2 

Ball Plug/Nut 

Carbon Steel 

Stainless Steel 

Grease Fittings 

Stainless Steel 

Stainless Steel 

*Carburized to RC 45-60

Main and Back-Up Seals

 

Min Temp (F/C)

Max Temp (F/C)

Buna 

-20°F/-28.8°C

212°F/100°C

Fluorocarbon 

-20°F/-28.8°C

400°F/204.4°C

PTFE (PFA) encapsulated
Silicone (FDA Approved)

-50°F/-45.6°C

500°F/260°C

EPDM 

-50°F/-45.6°C

250°F/121°C

Kalrez 

0°F/17.7°C

500°F/260°C

All Endura DSF Swivels come standard with specified main and back-up seals. PTFE encapsulated Fluorocarbon environmental seals (qty 2) and static product seals (qty 1) are standard. Other seals available upon request.

Lubricants

Product

Description 

880-0089 

High Performance Synthetic Lubricant

(14 oz. (400 gram) cartridge)

Specially formulated to reduce friction and wear

Requires only annual lubrication

Will not drip, melt or carburize

Complies with FDA Regulation 21CFR 178.3570

Temperature Range: -40°F – 750°F (-40°C – 398.8°C)

NOT FOR USE WITH EPT/EPDM SEALS

885-0085 

High Performance Synthetic Lubricant for EPT/EPDM Seals 

Design Parameters: EN13480:2002 part 1-7, ASME B31.3

Max Design Pressure: 500 psi / 34 Bar

Min Design Temperature: See Seal Materials

Max Design Temperature: See Seal Materials

 

 

                                                                          

 

 

 

 

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