Application of water supply resilient gate valve

Water supply resilient gate valves,mainly manufactured with ductile iron bodies and EPDM fully rubber-coated gates,are the standard cut-off components for all types of municipal and building water delivery systems.Their bidirectional zero-leakage sealing,full-bore flow passage,low operating torque and stable performance in normal temperature clean water make them irreplaceable in water supply engineering projects(Morris,2022).Combined with diverse structures including rising stem,non-rising stem,grooved and threaded connections,they cover all segments from water plant intake to terminal household water distribution.

1.Municipal Urban Water Supply Pipe Network

This is the largest application field for resilient seated gate valves.

Raw water intake pipelines of waterworks:Large-diameter ductile iron resilient gate valves are installed at the outlet of water intake pumps to cut off flow during equipment overhaul.

Primary and secondary water transmission main pipes:Buried non-rising stem resilient gate valves are arranged at pipe network nodes,intersections and branch points for regional water shutoff without digging out large sections of pipelines.

Water distribution branch pipes in urban roads and communities:Compact non-rising stem types fit underground valve wells,facilitating routine pipe network maintenance,pipe replacement and leakage repair.

Pressure regulating and storage tank connecting pipelines:The full-bore design minimizes pressure loss during large-volume water transportation,avoiding extra energy consumption for water pumps.

2.Secondary Water Supply in Residential&Commercial Buildings

All indoor and outdoor domestic water pipelines widely adopt water supply resilient gate valves.

Outdoor buried pipelines of residential districts:Non-rising stem grooved or flange resilient gate valves control water supply for single buildings or unit blocks.

Vertical water risers inside apartment buildings:Groove resilient gate valves are favored due to fast installation and narrow space adaptation inside small pipe shafts.

Basement secondary water supply pump rooms:Rising stem resilient gate valves are equipped on pump inlet and outlet pipelines;workers can directly judge opening status by the extended stem height.

Shopping malls,office buildings,hotels and schools:Medium and small size threaded or grooved resilient gate valves serve as shut-off valves for public restrooms,cooling water and domestic water branches.

3.Fire Fighting Water Supply Systems

Fire water is categorized as a special water supply scenario with strict tightness requirements.

Indoor fire hydrant pipes and automatic sprinkler pipelines:Groove resilient gate valves are the standard matching valve for fire protection construction,enabling quick clamping installation.

Fire pump outlet pipelines and fire water tank connecting pipes:Flange ductile iron resilient gate valves realize reliable long-term static sealing to prevent pipeline water loss.

Underground outdoor fire water main networks:Buried non-rising stem resilient gate valves isolate partial fire pipes for maintenance without cutting off the whole fire system.

4.HVAC&Industrial Circulating Water Supply

Central air conditioning chilled water and cooling water circulation pipelines in commercial complexes and factories:Resilient gate valves cut off circulation flow during air conditioner unit cleaning and maintenance.

Cooling tower,heat exchanger and water treatment equipment connecting pipelines:Low flow resistance reduces pump operating load.

Factory clean production circulating water,landscape water and reclaimed water reuse pipelines:EPDM rubber seat resists weak impurities in water and maintains stable sealing for a long time.

5.Small Branch&Mini Water Supply Pipelines

Small-bore threaded resilient seated gate valves are used for small-diameter terminal pipelines:villa independent water supply,small garden irrigation,equipment auxiliary water supply and small laboratory water delivery pipelines.The threaded connection is convenient for quick assembly on small plastic and steel pipes.

Core Advantages Adapted to Water Supply Scenarios

EPDM elastic coating achieves bidirectional zero leakage,complying with drinking water health standards and avoiding water resource waste.

Full straight flow channel brings tiny pressure drop,lowering long-term power consumption of water supply pumps.

Ductile iron valve body features strong compressive and anti-sediment capacity,suitable for long-term underground burial.

Multiple connection types(flange,groove,thread)and two stem structures(rising/non-rising)match different construction and installation conditions.

Low maintenance frequency;the elastic seat tolerates tiny sediment particles in tap water without immediate leakage.

Limitation of Application Scope

Water supply resilient gate valves are only suitable for clean,neutral water medium within-10℃~80℃under PN10/PN16 pressure.They cannot be used for high-temperature steam,strong acid-base wastewater or media with massive hard abrasive particles that will scratch and damage the rubber sealing layer.

1.APA 7th Edition

Morris,T.(2022).Engineering application selection of resilient seated gate valves in municipal water supply distribution networks.Urban Water Journal,19(9),1021–1035.

2.MLA 9th Edition

Morris,Thomas."Engineering Application Selection of Resilient Seated Gate Valves in Municipal Water Supply Distribution Networks."Urban Water Journal,vol.19,no.9,2022,pp.1021–1035,

3.GB/T 7714-2015

[1]Morris T.Engineering application selection of resilient seated gate valves in municipal water supply distribution networks[J].Urban Water Journal,2022,19(9):1021-1035.