STR35351 Straub Open-Flex 1L Coupling

Applications

Suitable for repairing or joining pipes where access to the pipe end is difficult or not possible. The unique wrap-around design differs from similar type repair products because the installation or repair is permanent due to the unique flexible lip seal gasket design. Open-Flex couplings will also act as an expansion joint. Straub Open-Flex couplings do require the pipes to be properly anchored and restrained as they are not pull-out resistant like the Straub Grip-L couplings. Use Straub Open-Flex couplings to replace bolted sleeve type couplings (AWWA Stc. C-219) or for permanent repairs or installation.

Construction

• Highest quality 316 Ti stainless steel construction
• EPDM sealing sleeve standard, temperature range of -4°F to 176°F
• Casing: AISI 316 Ti
• Screws: AISI 4135 steel
• Bolts: AISI 12L 14 Galvanized

Features

• Accommodates up to 5° of pipe misalignment
• Vary gap between pipe ends
• Absorbs vibration, water hammer and sound
• Special patented grip ring for superior holding power on hard-surfaced pipes
• 5 year limited warranty
• Reusable

Installation

Requires no special tools or pipe-end preparation; only a torque wrench is required for a secure and safe pipe connection that seldom needs retightening.

Safety Notes

• Not pull-out resistant.
• Ensure that pipes are properly anchored and supported.

Specifications

• Built to ASTM 1476, Type C, Class 2 specifications
• American Bureau of Shipping (ABS) up to 232 PSI
• Underwriter's Laboratories
• National Sanitation Foundation

Use

• Joins like or dissimilar pipe materials: steel, galvanized, painted, stainless steel, thin-wall stainless steel, PVC, copper
• Use with assembly tool: STR6648