Ductile iron grooved pipe fittings Ductile iron grooved couplings FM and UL approved 1. Type: Grooved Elbow, tee, cross, reducer, cap, grooved coupling, mechanical tee, mechanical cross, flange adaptor 2. Material: Ductile Iron, ASTM A536, Grade 65-45 3. Certificates: FM & UL & CE 4. Pressure rate: 1.6MPA &2.5MPA or 300PSI - 750PSI 5. Connect type: Grooved-thread end & grooved end 6. Size: 1"-16" 7. Finish: Paint, Epoxy or Galvanization 8. Packaging: Wooden cases or pallets or as per customers'requirement 9. Delivery Time: 25 days after order conformed 10. Payment: By T/T or L/C 11. Applications range: 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 cartons and pallets