4 colors choice: Red ,Orange ,Blue ,Galvanized Of Rigid Coupling
ductile iron rigid coupling /fire fitting coupling /grooved fittings   

1.FM UL approved  of  All Grooved Coupling
2.Size:1-12" for all grooved fitting
3.Grooved Coupling Material:ductile iron ASTM-A536 Grade 65-45-12
4.Grooved Coupling Surface :painting,epoxy,hot dip galvanzed
5.Gasket for Grooved Coupling : 
                  EDPM , tempersture Range :     (-34----+110ºC)
                  SILICON , tempersture Range : (-40----+177ºC)
                  NITRILE, tempersture Range :   (-29----+82ºC)

6.Thread :BSPT or NPT
7.Painting /Epoxy RAL 3000
8.Bolts and Nuts: ISO 898-1class 8.8






PACKING




KINGMETAL STEEL INDUSTRY CO.,LTD ,is a professional company in manufacturing and saling steel pipes and pipe fittings ( tee, elbow ,reducer ,flanges). we are an old company in this area ,we start from 1989 and have rich exporting experience ..
Cooperating with us you will feel easy and safe !