Home » Valves & Fittings » AST ValvesModel 403 - Anti-Syphon ValveReducing fire hazard and preventing fuel spillage should a line rupture. The flow would automatically stop the syphon effect. No need to specify head settings. Everything is included to cover an operating range of 0' to 20'.Application -Reducing fire hazards and preventing fuel spillage should a line rupture. The flow would automatically stop the syphon effect. *Also available with pressure relief for thermal expansion (403PR).Features-✔Automatic shut off syphon effect✔Precision machined valve seats✔Prevents fuel spillage✔No need to specify head settings when ordering✔Compatible with E-85 (Model E-403)Construction-• Zinc plated cast iron body• Buna-N sealsSales SheetPrice: $0.00 403 Please Select...-34 PR-34 -10 PR-10 -15 PR-15 -20 PR-20 Tweet« Previous | Next »