Basic Info.Model NO.ST-KZ0009Temperature0°c~85°cCertificationGS,
RoHS, CE, ISO9001Media Water StandardPn10/Pn16/Pn25Connection Mode
Flange Power Hydraulic MaterialAlloyType Sleeve
TrademarkSHSUOTETransport PackageWooden
Case/PalletSpecificationDN50~DN600OriginShanghaiProduct
Description01.DescriptionFloat control Valve is
a non-modulating valve that accurately controls the liquid
level in tanks. This valve is designed to open fully when the
liquid level reaches a preset low point, and close drip-tight
when the level reaches a preset high point. The float pilot is
remotely installed inside of reservoir, or integrally installed
with main valve for size less than 4 inch. The high and low
point can be adjusted on the spot. The max adjustable distance is
0.5m, if need more, consult factory.02.Main
parts&materialNo.PartMaterialChina stardard1bodyDuctile
ironEN-JS10402Seat ringStainless steelAISI
3043O-ringRubberNBR4O-ringRubberNBR5Screw boltStainless
steelA26GasketStainless steelA27bonnetDuctile ironEN-JS10408Shaft
SleeveLead BrassCZ 1229SpringStainless steelAISI 30410NutStainless
steelA211DiaphragmRubberNBR12Diaphragm pressure plateDuctile
ironEN-JS104013Hinge PinStainless steelAISI 30414YokeDuctile
ironEN-JS104015Seal RingRubberNBR16Guide plateStainless steelAISI
30417StemStainless steelAISI 304I8PlugStainless steelAISI
30403.Features001.The diaphragm assembly provides long life and
reliability with a stem guided by both top and seat
rings.002.All cast iron parts are coated with split epoxy resin to
resist corrosion.003.During maintenance, the main valve does not
need to be removed from the pipeline and can be repaired directly
on line.004.The alignment of valve body allows for better control
characteristics and lower head loss.005.Ductile iron body has high
strength and light weight.006.Reinforced nylon diaphragm, film
thickness uniform high strength, good precision,
durable.007.Internal use of stainless steel seat, guide platen and
shaft, durable.008.Good closing effect, zero leakage
safety.009.Hydraulic operation does not need external power, can
cooperate with the need to match different guide valves and
accessories as opening and closing or adjust the water level,
pressure and flow.04.DimensionsDN LBHDPN10PN16PN25N.W.
kg5023017323285 4-019 1465290197259954-0194-0198-01919803102242791028-0198-0198-019231003502653051208-0198-0198-023321504803524451528-0238-0238-028682006004365691828-02312-02312-02811225073051861121212-02312-02812-03117830085060065924212-02312-02816-031225DNLØDØK HN-ØdPN10PN16PN25PN10PN16PN25PN10PN16PN25400110056558062051552555081316-02816-03116-037450110061564067056558560081320-02820-03120-0375CO125067071573062065066096720-02820-03420-0376CO1450780840845725770770114020-03120-03720-0407001450895910960840840875114024-03124-03724-04305.Execution
standardDesign standardCJ/T219, JB/T10674Connection
standardGB/T17241.6Face spacing standardGB/T12221Inspection testing
standardGB/T1392706.Technical parametersNominal
diameterDN50~DN600(2"~24") PN10DN50~DN600(2"~24")
PN16DN50~DN200(2"~8") PN25Nominal
pressure0.1MPa-0.8MPa0.8MPa-1.3MPa1.3MPa-2.0MPaOperating
temperature-10°C~85°CSeal test1.1PNShell test1.5PNSuitable
mediumWater07.Operating principleFluctuations when the pipeline
pressure in normal circumstances, sampling valve tube after
Y type filter to wave the upper valve diaphragm, a buffer
holes due to the lower part of the diaphragm valve and valve body
are interlinked, diaphragm valve at this time due to the
fluctuation of pressure equal to there is no pressure difference
and fluctuation valve close on lower part of the diaphragm spring
force, when the sudden rise in pressure in pipe, rises high, lower
part of high pressure pilot valve diaphragm pressure lifts
suddenly, when the pressure rises to more than low pressure pilot
valve spring pressure, high pressure pilot valve to open, will wave
valve diaphragm upper water leakage, pressure fluctuation after the
upper valve diaphragm pressure relief to the diaphragm valve spring
force to overcome fluctuations, fluctuation valve open, high
pressure pilot valve opens,Pressure water relief into the
low-pressure guide valve, the low-pressure guide valve due to the
spring force will open the low-pressure guide valve, further drain
the pressure fluctuation valve diaphragm on the cavity of the
water, so that the pressure fluctuation valve as soon as possible
to open.When the water pressure in the pipeline falls, the water in
the lower part of the high-pressure guide valve diaphragm is not
enough to overcome the spring force on the low-pressure guide
valve, the high-pressure guide valve closes, the low-pressure guide
valve also closes, at this time the upper part of the fluctuation
valve diaphragm is full of water, there is no pressure difference
on the lower part of the fluctuation valve diaphragm, the
fluctuation valve closes the fluctuation valve by the action of the
spring force.Since the lower chamber is connected to the pressure
in the valve body throu
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