OPW Engineered Systems
Twist-Lok Dry Disconnect Couplings

Twist-Lok Dimensions

Order Guide

Twist-Lok™ represents the latest addition to OPW’s industry-leading range of Dry Disconnect Couplers. With its user-friendly operation and simple handling, the Twist-Lok provides a quick, easy connection with minimal product loss.

FEATURES & BENEFITS:

• Fully interchangeable with other manufacturers, such as TODO-MATIC, Mann Tek, etc. Manufactured in accordance with NATO STANAG 3756.
• Pressure Ratings up to 360 PSI; ideal for LPG and other higher-pressure applications.
• 316 Stainless-Steel construction
• Available in 1", 2", 3" and 4" sizes. Larger sizes available upon request.
• Integral heavy-duty swivel to aid connection and minimize hose wear.
• Double safety: Fully Interlocked plus locking mechanism in open position.
• Product Selectivity available via mechanical keying – minimizes risk of cross contamination.
• Suitable for vacuum service

TECHNICAL:

Stainless Steel (316Ti)- standard, Hastelloy, Brass & aluminum upon request.
Seals	Fluorocarbon Seals (standard), EPDM, FFKM	Connections	FNPT, ANSI Flanges; others upon request
Pressure Rating	150-360 PSI	Sizes	1", 2", 3", 4"; larger sizes upon request
Temperature Rating	-40F – 350F (-40C – 177C)	Approvals	European & American Rail Car Approvals AAR Approval No. E989073-A

WEIGHTS:

Size	Weight male part [lbs (kg)]	Weight female part [lbs (kg)]
1“	1.65 (0.75)	3.44 (1.56)
2“	2.38 (1.08)	12.79 (5.8)
2 ½“	12.83 (5.82)	18.19 (8.25)
3“	18.96 (8.60)	33.00 (14.97)
4“	23.88 (10.83)	42.39 (19.23)

MATERIALS OF CONSTRUCTION:

Stainless Steel (316Ti) - standard
Seals	Fluorocarbon Seals (standard), EPDM, FFKM	Connections	FNPT, ANSI Flanges; others upon request
Pressure Rating	Up to 360 psi (25 bar)	Sizes	1", 2", 3", 4"; larger sizes upon request
Temperature Rating	-40ºF-350ºF (-40ºC-177ºC)	Approvals	European and American Railcar Approvals AAR Approval No. E989073-A