Fast pipe connection and repair. Material: AISI304 AISI316L AISI316TI Sealing rubber: EPDM/NBR SIZE: DN25-600 Working pressure: 5-32bar Temperature: -30----+120 centigrade degree Warranty: 20 years Certification: DNV, GL, CCS, ABS, BV, LR. Fire Proof Pipe Couplingsz