Material & construction
Spring-loaded chemical-service relief valve for an independently sized return/bypass line.
WOG-335 / Chemical injection accessories
Chemical Dosing Relief Valve
Bypass excess chemical-feed pressure to a safe return within the selected valve limits.
| Nominal connection | 1/2, 3/4, 1 in NPT (DN 15, 20, 25 nominal); verify model |
|---|---|
| Relieving capacity | Size for the full pump discharge flow at the required relief pressure |
| Set-point constraint | Above normal discharge pressure; below the lowest component pressure limit |
| Wetted materials | 316 SS / compatible polymer; chemically compatible diaphragm |
Industry reference selections; ordered specification requires supplier confirmation.
View catalogue page 79 ↗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.
Related products
WOG-331
Fixed NPT Injection Quill
Inject corrosion inhibitor, scavenger or process chemicals into a flowing stream.
Specifications & details ↗
WOG-332
Metering Pump Calibration Column
Check metering-pump delivery and repeatability using a measured drawdown.
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WOG-333
Diaphragm Pulsation Dampener
Reduce metering-pump discharge pulsation using a correctly sized diaphragm chamber.
Specifications & details ↗