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Straub Open-Flex 1L Coupling

STR35901
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Attributes

Weight
3.2 lb
Break Quantity
0
Optional Package/Box Quantity
4
Size
5"
Material
Stainless Steel
Working Pressure
232 PSI
Temperature Range
-7°F to 176°F (-20°C to 80°C)
Pipe OD
5.56"
Range
5.49" to 5.57"

Details

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
  • 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

Resources

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