Straub Metal Grip Coupling The Straub Metal Grip coupling series provides ultimate pull out resistance for use in all metal pipes, and meets the highest standards in both design and construction, as well as safety. These couplings are used around the world in piping systems transferring a range of media, including water, wastewater, gas, oil, fuel, chemicals and solid materials. The range also includes the FF (Fire Fence) range of couplings for use wherever fire protection is required by your application: Self-anchoring Resist axial force Detachable and reusable Diameter: 30 to 609.6 mm (457.2 mm on fire resistant versions) Temp. range: -30 ° to 100 ° C Pressure: 67 bar EPDM and NBR sealing sleeves as standard DIN 86128-1 and 86128-2-compliant manufacture
