Materials of Construction. The materials of construction for sluice valves shall be in accordance with Table 5-4. Table 5-4 Materials of Construction for Sluice Valves Item Material Body, Wedge, Dome For PN 1.0 - CI IS 210 Grade FG 260 For PN 1.6 - SG Iron IS 1865 Grade 500/7 Hand Wheel Cast Iron IS 210 Grade FG 200 Stem IS 6603, SS 4Cr17 Ni12 Mo2 / AISI 316 Body Seat Ring and Wedge Ring IS 318 Grade LTB 2 Shoe Channel and Stem Nut IS 318 Grade LTB 2 Back Seat Xxxx IS 318 Grade LTB 2 Pressure Reducing Valves Scope Diaphragm controlled pressure reducing valves, suitable for automatic reduction of downstream pressure shall be provided and installed. The downstream pressure shall remain constant to the set value, independently of flow variations or upstream pressure variations. The pressure rating of the valves shall be PN 1.6 (16 kg / cm2 operating pressure). Product features Product features shall be as specified below.
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