HONGON Water Treatment Valves: Selection Guide for Engineers and Plant Managers

Selecting the right water treatment valves ensures efficient operation and low maintenance costs. Shanghai HONGON Machinery Technology Co., Ltd. helps water treatment professionals make the right choice.

Valve Selection Guide

Step 1: Identify the Application

ApplicationValve TypeConnectionRaw water intakeConcentric butterflyFlanged or waferPump stationConcentric butterflyLug (for removal)FiltrationConcentric butterflyWaferBackwashConcentric butterflyWafer (quick actuation)Chemical dosingConcentric butterflyWafer or flangedSludgeTriple offset or knife gateFlanged

Step 2: Choose Connection Type

ConnectionBest ForWhyWaferGeneral in-line serviceLowest cost, compactLugPump connections, maintenance pointsDead-end capableFlangedLarge diameters, buried serviceMost secure

Step 3: Select Seat Material

MediaRecommended SeatFresh waterEPDMWastewaterEPDMChemical dosingPTFE (check compatibility)SludgeEPDM or metal

Step 4: Choose Disc Material

ServiceDisc MaterialClean waterCoated ductile ironCorrosive waterStainless steel 316WastewaterCoated ductile ironAbrasiveHard coated or stainless steel

Step 5: Determine Actuation

ActuationBest ForManual leverSmall valves, infrequentGear operatorLarger valves, easy operationElectric actuatorRemote SCADA controlPneumatic actuatorFast cycling (backwash)

Common Water Treatment Valve Sizes

ApplicationTypical Size RangeRaw water intake12” — 48”Pump suction8” — 24”Filter control6” — 24”Backwash6” — 24”Distribution4” — 24”Chemical dosing1” — 4”

Installation Best Practices

Pump Station Installation

• Use lug style valves for pump connections
• Allow space for valve removal
• Install pressure gauges for diagnostics

Filter Installation

• Use wafer style for in-line service
• Install actuators for backwash sequencing
• Verify quick operation

Underground Installation

• Use flanged connections
• Provide valve box access
• Extend stem to grade

Maintenance Tips

IntervalActionMonthlyVisual inspection, cycle valveQuarterlyCheck for leakageAnnuallyFull operation testAs neededReplace seat if leakage occurs

Energy Efficiency Considerations

PracticeBenefitLow pressure drop designReduced pump energyTight shutoffNo leakage when closedProper sizingOptimal flow controlReliable actuationPrecise system control

Why HONGON for Water Treatment Valves

• EPDM seats standard for water
• Coated discs for corrosion protection
• 100% leakage tested
• BHC automated production line
• Competitive pricing

The HONGON Commitment

Chairman Sun Maoteng’s principles — economy, effectiveness, efficiency — guide HONGON as your trusted water treatment valves supplier.

Discover HONGON water treatment valves at https://hongonvalve.com/shop/. Contact us for specifications and quotes.