ANTI-SYPHON/BACK PRESSURE AND PRESSURE RELIEF VALVES These rugged valves are constructed from PVC, PP, PVDF, or SS components to ensure long life and reliability. The spring loaded PTFE faced diaphragms provide positive discharge pressure to stabilize...

BPR-5-PVDF-N BP/PR VALVE, PVDF/PTFE, 1/2" NPT Walchem Metering Pump Repair Part With a construction featuring PVDF (polyvinylidene fluoride) for the valve body and PTFE (polytetrafluoroethylene) for the sealing elements, this valve provides exceptional...

BPR-5-PVDF-F BP/PR VALVE, PVDF/PTFE, 1/2" FLANGED Walchem Metering Pump Repair Part Featuring a construction with PVDF (polyvinylidene fluoride) for the valve body and PTFE (polytetrafluoroethylene) for the sealing elements, this valve ensures...

BPR-5-PVC-UV-M BP/PR VALVE, PVC/FKM/FKM, 1/2"UNION, MED PRESS Walchem Metering Pump Repair Part Crafted with a PVC (polyvinyl chloride) valve body and featuring FKM (fluoroelastomer) sealing elements, this precision-engineered valve ensures robust...

BPR-5-PVC-UE-M BP/PR VALVE, PVC/EPDM/EPDM, 1/2"UNION, MED PRESS Walchem Metering Pump Repair Part With a PVC (polyvinyl chloride) valve body and EPDM (ethylene propylene diene monomer) sealing elements, this precision-engineered valve offers robust...

BPR-5-PVC-UE BP/PR VALVE, PVC/EDPM/PTFE, 1/2" UNION (NPT/SOC) Walchem Metering Pump Repair Part With a PVC (polyvinyl chloride) valve body and a combination of EPDM (ethylene propylene diene monomer) and PTFE (polytetrafluoroethylene) for sealing...

BPR-5-PVC-U BP/PR VALVE, PVC/FKM/PTFE, 1/2" UNION (NPT/SOC) Walchem Metering Pump Repair Part Crafted with a PVC (polyvinyl chloride) valve body and a combination of FKM (fluoroelastomer) and PTFE (polytetrafluoroethylene) for sealing elements, this...

BPR-5-PVC-NP BP/PR VALVE, PVC/PTFE, 1/2" NPT, 1/4"NPT PORT Walchem Metering Pump Repair Part Crafted with a PVC (polyvinyl chloride) valve body and PTFE (polytetrafluoroethylene) sealing elements, this valve ensures robust corrosion resistance and...

BPR-5-PVC-N-BV BP/PR VALVE, PVC/PTFE, 1/2" NPT, 1/4"NPT & VALVE Walchem Metering Pump Repair Part Crafted with a PVC (polyvinyl chloride) valve body and PTFE (polytetrafluoroethylene) sealing elements, this valve ensures robust corrosion resistance...

Anti-Syphon/Back Pressure Valves   Walchem Back Pressure / Anti-Siphon valves provide stability and safety to your metering pump installations.  All metering pump require back pressure to operate correctly and often installations do...

BPR-5-PP-UE BP/PR VALVE, PP/EDPM, 1/2" NPT UNION Walchem Metering Pump Repair Part Constructed with a polypropylene (PP) valve body and featuring EPDM (ethylene propylene diene monomer) for sealing elements, this valve ensures robust corrosion...

BPR-5-PP-U BP/PR VALVE, PP/FKM, 1/2"" NPT UNION Walchem Metering Pump Repair Part This specific component, the BP/PR Valve, is crucial for the proper functioning and maintenance of the metering pump system. The materials used in its construction include...

BPR-5-PP-N BP/PR VALVE, PP/PTFE, 1/2" NPT Walchem Metering Pump Repair Part This specific component, the BP/PR Valve, is crucial for the proper functioning and maintenance of the metering pump system. The materials used in its construction include...

BPR-3-SS-N BP/PR VALVE, SS/PTFE, 1/4" NPT Walchem Metering Pump Repair Part This valve, constructed with stainless steel (SS) for the valve body and PTFE (polytetrafluoroethylene) for the sealing elements, ensures excellent resistance to corrosion and...

BPR-3-PVDF-N BP/PR VALVE, PVDF/PTFE, 1/4" NPT Walchem Metering Pump Repair Part This precision-engineered valve features a construction using PVDF (polyvinylidene fluoride) for the valve body and PTFE (polytetrafluoroethylene) for the sealing elements...

BPR-3-PVC-UE BP/PR VALVE, PVC/EDPM/PTFE, 1/4" UNION (NPT/SOC) Walchem Metering Pump Repair Part This precision-engineered valve boasts a construction of PVC (polyvinyl chloride) for the valve body, and a combination of EPDM (ethylene propylene diene...

BPR-3-PVC-U BP/PR VALVE, PVC/FKM/PTFE, 1/4"" UNION (NPT/SOC) Walchem Metering Pump Repair Part This precision-engineered valve features a construction of PVC (polyvinyl chloride) for the valve body and a combination of FKM (fluoroelastomer) and PTFE...

BPR-3-PVC-N BP/PR VALVE, PVC/PTFE, 1/4"" NPT Walchem Metering Pump Repair Part Featuring a construction of PVC (polyvinyl chloride) for the valve body and PTFE (polytetrafluoroethylene) for the sealing elements, this precision-engineered valve offers...

BPR-3-PP-N BP/PR VALVE, PP/PTFE, 1/4" NPT Walchem Metering Pump Repair Part This precision-engineered valve features a construction using polypropylene (PP) for the valve body and PTFE (polytetrafluoroethylene) for the sealing elements. This material...