4 COLORS AVAILABLE: RED BLUE GALVANIZED GROOVED COUPLING ,ORANGE ,,,
1.FM UL approved of all grooved fitting
2.Size:Standard grooved specifications: ( 1-12" )
3.Material:ductile iron ASTM-A536 Grade 65-45-12
4.Surface :painting,epoxy,hot dip galvanzed grooved fittings
5.Gasket : 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
ductile iron Flexible coupling / fire fighting /grooved fittings / rigid coupling
Usage:
1) Automatic sprinkler system for fire protection on commercial, civil and municipal constructions like water supplying, gas supplying, heat supplying, etc. ...
2) Industrial pipeline system on shipping, mine, oil field, textile, powder plant, etc.
3) Pipeline system on subway station, railway station, airport, seaport, bridge, etc.