Gas Shut-off Valve Control Method Cable Release to Close Configuration Normally Closed Pipe Size 1 1/4 in Orifice Dia 1 5/8 in Cv Flow Factor 34 PSI Differential Min 0 PSI Differential Max 5 Valve Design 2-Way Body Material Aluminum Disc Material NBR Height 7 3/16 in Width 5 3/8 in Max Fluid Temp 132 Degrees F Seal Material NBR Spring Material 302 Stainless Steel Standards UL Component listed Tube Material 430F Stainless Steel