Single Arch Rubber Expansion Joint Features: -Working pressure ratings up to 150 psi,Temperature ratings to 250°F -Vacuum ratings to 15 in.Hg -Allows for greater motion capabilities than general expansion joint -Excellent for absorbing thermal expansion,eliminating vibration&sound -Gaskets and packing not required -Absorbs water puisation and protects against start-up surge force Rubber Expansion Joint EPDM,NBR,NR, CSM,VITON,SILICON. Size:Size: DN32-DN3000 Pressure: PN10,PN16,PN25 Pressure Test: 15Bar, 24Bar,37.5Bar.