Threaded rubber bellow, PN 20, twin sphere, re-inforced EPDM rubber, threaded end connection to BSPP, malleable iron c/w galvanized unions.

Hydrostatic Test Pressure
Body: 15 bar
Burst Pressure
50 bar at 20 deg C

Pressure - Temperature Rating
10 bar at 60 deg C
6 bar at 80 deg C
3 bar at 90 deg C
Maximum allowable short term temperature: 100 deg C
Maximum Vacum Rating: 400 mm Hg