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

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

Style 20
1 plane of rotation

Style 30
1 plane of rotation

Style 40
1 plane of rotation

Style 50
2 planes of rotation

Style 60
2 planes of rotation

Style 70
2 planes of rotation

Ordering Guide

8000 Series Swivel Order Guide

8000 Series Seal Kits

Size	Buna	Fluorocarbon	PTFE/Silicone	EPDM	Kalrez®
2”	8000RK-0201	8000RK-0202	8000RK-0203	8000RK-0204	8000RK-0209
3”	8000RK-0301	8000RK-0302	8000RK-0303	8000RK-0304	8000RK-0309
4”	8000RK-0401	8000RK-0402	8000RK-0403	8000RK-0404	8000RK-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-CF8M
Tail	ASTM A350-LF2 Class 1*	ASTM A351-CF8M
Elbow	ASTM A234 WPB	ASTM A351-CF3M 316L
150/300 lb Flange	ASTM A105	ASTM A351-CF3M 316L
Bearing	Grade 200 CST	Grade 440 SST
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
885-0083	High Performance Synthetic Lubricant for EPT/EPDM Seals

Design Parameters: EN13480:2002 part 1-7

Max Design Pressure: 500 psi / 34 Bar

Min Design Temperature: See Seal Materials

Max Design Temperature: See Seal Materials

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