English
Small flow control valve is a special control valve for the control of small flow, can control the flow of all kinds of gas, liquid, steam, KV value up to 0.005.Therefore, it can be used in many occasions where accurate control of small flow rate is needed, such as laboratory test equipment, or industrial equipment in mass production, to control the small flow rate of chemicals, dyes, flavors and other additives.
Item NO.:
XU141Lead Time:
45DaysProduct Orgin:
CHINABrand:
XUVALShipping Port:
ShanghaiPayment:
100%TTColor:
SilveryMOQ:
1001.Product overview:
708ME-ZAZPE Small flow control valve is a special control valve for the control of small flow, can control the flow of all kinds of gas, liquid, steam, KV value up to 0.005.Therefore, it can be used in many occasions where accurate control of small flow rate is needed, such as laboratory test equipment, or industrial equipment in mass production, to control the small flow rate of chemicals, dyes, flavors and other additives.
708ME-ZAZPE electric small flow control valve can also be specially used for SCR/SNCR flue gas denitration system, the use of the medium is generally 20% concentration of ammonia or urea, through the control of the upper computer, the electronic electric actuator output DC4-20mA control signal to accurately control the valve opening,Thus accurately adjust the amount of ammonia or urea injection, in order to achieve a higher standard of flue gas denitration efficiency, in line with the requirements of environmental protection of flue gas.
2.Structure and Principle:
This product is composed of two parts: multi spring pneumatic film actuator or electronic electric actuator and needle type single seat regulating valve.The actuator receives the external control signal,Push rod displacement, drive the valve stem, the valve core relative to the valve seat displacement,The flow rate into the valve body is changed to ensure that the production process is carried out according to certain procedures or requirements.
3.Main technical parameters:
PN1.6,2.5,4.0,6.3 Mpa
ANSI Class 150, 300, 600 LB
0Cr18Ni9(304),0Cr17Ni12Mo2(316),00Cr17Ni14Mo2(316L)
Above+Stellite(surfacing Strylae alloy)
Nominal diameter
1/4",1/2",3/4'
Valve core type
Needle
Flow characteristic
Such as percentage,Linear,Switch
Nominal pressure
Connection method
Internal thread
Body material
0Cr18Ni9(304),0Cr17Ni12Mo2(316)
Trim material
Actuator
Pneumatic film type,Pneumatic piston type,Electric switch type,All electronic
4.Product features:
1.The flow path of the valve body is strictly designed according to constant cross section and low flow resistance, so the pressure drop loss is small.
2.The spool adopts the enhanced stem oriented structure, so the work stability is good, especially can withstand the impact of high-speed fluid on the spool.
3.Actuators are evenly arranged around multiple springs and use high-strength rubber film actuators, which can accept 20-100kPa (3-15psi) standard pressure control signals.
5.Main Performance Indicators:
|
DN |
1/4",1/2",3/4" |
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|
Rated flow coefficient Cv |
Straight line | 0.01 | 0.02 | 0.05 | 0.1 | 0.2 | 0.3 | 0.5 | 0.63 | 1.1 | 1.25 | 2.0 |
| Such as percentage | - | - | 0.05 | 0.1 | 0.2 | 0.3 | 0.5 | 0.63 | 1.1 | 1.25 | 2.0 | |
|
Rated stroke(mm) |
10, 16 |
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Effective area of diaphragm Ae (cm²) |
100, 200 |
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Nominal pressure |
MPa |
1.6;2.5;4.0;6.4(6.3)/2.0;5.0;11.0 |
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| Bar |
16;25;40;64(63)/20;50;110 |
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| Lb |
ANSI:Class150; Class300; Class600 |
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Connection method |
Internal thread |
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Flow characteristic |
Straight line;Correction line; | |||||||||||
|
Valve core type |
Needle |
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|
Inherently adjusttable ratio |
50:1 |
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Actuator type |
Electronic |
Power supply voltage:AC220V,DC24V,etc,Contril signal:DC4-20mA,etc |
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| Pneumatic film type |
Air pressure:0.14/0.25MPa. Spring range20~100KPa,40~200KPa,etc |
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Allowable leakage |
IV，VI(Micro air bubble class) |
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Working temperature t(℃） |
-20~200, -40~250, -60~250,etc |
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Packing & Delivery :
Packing Details : all by seaworthy plywood case and packed strongly by packing belt as below
Delivery Details : Generally it is 5-10 days if the goods are in stock. or 15-30 days if the goods are OEM or not enough subject to the order quantity. But anyway, normally, we are able to make sure the delivery will not exceed 45 days.
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V230 self operated pressure regulating valvenext :
Pneumatic general Angle regulating valveIf you are interested in our valves and want to know more details,please leave a message here,we will reply you as soon as we can.
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NO.139,Xianghe Road,Fangbu Industrial Zone,Tonglu,Hangzhou,China
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