FM UL Approved ductile iron Grooved pipe Fittings and couplings

UL FM approval ductile iron grooved pipe fittings and grooved rigid/flexible couplings 
 

Material: ductile iron ASTM A536, QT450-12  
Standard: ANSI, BS, JIS  
Techonology: casting  
Type: Rigid coupling, Flexible coupling, Elbow, Tee, Cross, Mechanical Tee.u-bolted mechanical tee  
Size: 1"-12"  
Wall thickness: SCH10-SCH160, XS,XXS,STD  
Pressure: 300PSI and 500PSI  
Treatment: Darcrome, Galvanized, PAINTING(Red(RAL3000), Orange)  
Certificates: FM&UL&CE&ISO  
Application: Fire protection，fire fighting pipe systems