Anti-Syphon/Back Pressure Valves
From Walchem Corporation


  • Anti-syphon/Back Pressure valvesRugged valves are constructed from PVC, PP, PVDF, or Stainless Steel components to ensure long life and reliability.

  • Spring loaded PTFE faced diaphragms provide positive discharge pressure to stabilize pump output and prevent syphoning.

  • All valves are screw adjustable from 0 to 150 psi standard.

  • Ideal for LK and EHE metering pumps, but can be used with any metering pump requiring back pressure adjustment or anti-syphon protection.
VALVES - FIXED 30 PSI BACK PRESSURE & ANTI-SYPHON
8011-C VALVE ASM, TRI-PURPOSE, PVC/TEFLON, "
8011-CP VALVE ASM, TRI-PURPOSE, PP/TEFLON, "
E90068 VALVE ASM, BP/AS, PVC, "
E90069 VALVE ASM, BP/AS, POLYPRO, "
E90198 VALVE ASM, BP/AS, POLYPRO, 3/8"
E90199 VALVE ASM, BP/AS, PVC, 3/8"
E90340 VALVE ASM, BP/AS, PVC, " NPTF
VALVES - ADJUSTABLE BACK PRESSURE & ANTI-SYPHON / PRESSURE RELIEF
BPR-3-PVC-N BP/PR VALVE, PVC, 1/4" NPT
BPR-3-PVC-U BP/PR VALVE, PVC, 1/4" UNION (NPT)
BPR-3-PP-N BP/PR VALVE, PP, 1/4" NPT
BPR-3-PVDF-N BP/PR VALVE, PVDF, 1/4" NPT
BPR-3-SS-N BP/PR VALVE, SS, 1/4" NPT
BPR-5-PVC-N BP/PR VALVE, PVC, 1/2" NPT
BPR-5-PVC-U BP/PR VALVE, PVC, 1/2" UNION (NPT)
BPR-5-PP-N BP/PR VALVE, PP, 1/2" NPT
BPR-5-PVDF-N BP/PR VALVE, PVDF, 1/2" NPT
BPR-5-SS-N BP/PR VALVE, SS, 1/2" NPT
BPR-7-PVC-N BP/PR VALVE, PVC, 3/4" NPT
BPR-7-PVC-U BP/PR VALVE, PVC, 3/4" UNION (NPT)
BPR-7-PVDF-N BP/PR VALVE, PVDF, 3/4" NPT
BPR-7-SS-N BP/PR VALVE, SS, 3/4" NPT
BPR-1-PVC-N BP/PR VALVE, PVC, 1" NPT
BPR-1-PVC-U BP/PR VALVE, PVC, 1" UNION (NPT)
BPR-1-PVDF-N BP/PR VALVE, PVDF, 1" NPT
BPR-1-SS-N BP/PR VALVE, SS, 1" NPT


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METEX CORPORATION LIMITED

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Metex Corporation Limited has been providing superior products and services to the process control, chemical treatment, waste water, industrial and manufacturing industries for over 25 years. It is our goal to continually provide our customers with the best possible equipment, technology, and service.

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