STR35351 - Straub Open-Flex 1L Coupling

Scraped SKU: straub-open-flex-1l-coupling/str35351 2026-07-23 18:32:06

Description

## 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 - 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 ## Prop 65 Warning **WARNING**: This product contains lead, a chemical known to the State of California to cause cancer and birth defects or other reproductive harm.

Specifications

Weight2.1 lb
Break Quantity1
Optional Package/Box Quantity1
Size3"
MaterialStainless Steel
Working Pressure232 PSI
Temperature Range-4°F to 212°F
Pipe OD3.50"
Range3.44" to 3.56"
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.
ConstructionHighest quality 316 Ti stainless steel construction EPDM sealing sleeve Casing: AISI 316 Ti Screws: AISI 4135 steel Bolts: AISI 12L 14 Galvanized
FeaturesAccommodates 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
InstallationRequires 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 NotesNot pull-out resistant. Ensure that pipes are properly anchored and supported.
SpecificationsBuilt to ASTM 1476, Type C, Class 2 specifications American Bureau of Shipping (ABS) up to 232 PSI National Sanitation Foundation
UseJoins like or dissimilar pipe materials: steel, galvanized, painted, stainless steel, thin-wall stainless steel, PVC, copper Use with assembly tool: STR6648
Prop 65 WarningWARNING : This product contains lead, a chemical known to the State of California to cause cancer and birth defects or other reproductive harm.
CasingAISI 316 Ti
ScrewsAISI 4135 steel
BoltsAISI 12L 14 Galvanized
Joins like or dissimilar pipe materialssteel, galvanized, painted, stainless steel, thin-wall stainless steel, PVC, copper
Use with assembly toolSTR6648

PDF Documents