Material & construction
Diaphragm-regulated polymer back-pressure valve with adjustable spring setting.
WOG-334 / Chemical injection accessories
Diaphragm Back-pressure Valve
Maintain controlled back pressure for stable chemical-metering operation.
| Nominal connection | 1/2, 1, 1-1/2 in NPT (DN 15, 25, 40 nominal) |
|---|---|
| Reference adjustment range | 10-150 psi (0.69-10.34 bar); verify selected model |
| Sizing basis | Maximum pump flow and minimum required discharge back pressure |
| Wetted materials | 316 SS / PVC / PVDF; chemically compatible diaphragm |
Industry reference selections; ordered specification requires supplier confirmation.
View catalogue page 78 ↗Options & acceptance
Select diaphragm/packing, adjustment range, connection, mounting and material compatibility.
Application & RFQ details
Match chemical compatibility, pump delivery at back pressure and suction conditions. A process back-pressure valve is not a certified pressure-vessel safety valve.
Standards & documents
Require product-specific pressure-temperature limits, wetted-material compatibility and functional tests. Applicable pressure-equipment requirements are order-specific.
Packing
Individual braced cartons/crates; drain and seal wetted passages; ship dampeners depressurized.
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