Electric Three-way Confluence and Shunt-off Regulating Valve
Description:
A brief introduction:
ZAZQ, ZAZX seriesElectric three confluence, shunt valveThe cylinder shaped valve type thin window guide.With DKZ straight travel electric actuator, take 0 ~ 10 or 4 ~ 20mA.DC signal to drive the valve opening and closing.The three confluence valve for two kinds of fluid mixed into a three fluid, or different temperature of the same fluid, mixed into the same temperature fluid.Three shunt valve will be a fluid into two fluid.
ZAZQ, ZAZX seriesElectric three confluence, shunt valveThe caliber of the product from 25mm to 200mm, nominal pressure 1, 1.6, 4, 6.4MPa, temperature range of -60 to 450 DEG C, the control signal is 0~10 or 4 ~ 20mA.DC.With different actuators can be divided into common type and the electronic type two.
Two, work principle:
ZAZQ, ZAZX seriesElectric three confluence, shunt valveComposed of DKZ electric actuator and three confluence or three shunt valve, with power supply as power, accept the standard signal, 0 ~ 10mA or 4 ~ DC 20mA DC drives the valve opening and the corresponding operation signal.The confluence of valve is the role of the two kinds of the three kinds of fluid exchange synthetic fluid, a fluid diverter valve is divided into two fluid.Shunt valve can only be selected corresponding confluence, but when DN = 80, the mixing valve can be used for streaming applications.Can replace two single seat control valve, saving investment, small occupied space.Three valve commonly used in two kinds of medium heat exchanger regulation ratio and simple adjustment.
Three,Electric three confluence, shunt valveThe main features:
1, the fluid in flow state on the spool direction, so the working stability is good.
2, in addition to the valve cover at the guide bushing, the spool side and the valve seat surface also has a guiding role, oriented area, reliable work.
3, servo amplifier with depth dynamic negative feedback, can improve the accuracy of regulation.
4, electric operation in various forms, can be applied to 4 ~ 20mA.DC or 0 ~ 10mA.DC.
5, the electronic type electric control valve control valve opening directly from the current signal without servo amplifier.
6, automatic save investment, compared with single, double seat or sleeve valve, composed of the same system can dispense with a valve, simplifying the system, saving investment.
7, bellows seal type to form a complete seal for moving the valve stem, fluid leakage blocking must.
Four,Electric three confluence, shunt valveThe main parts of the data:
1, valve body, valve cover: HT200, ZG230 ~ 450ZG1Cr18Ni9Ti;
2, valve, valve seat: 1Cr18Ni9Ti surfacing division Stellite alloys;
3, packing: ptfe;
4, a push rod, Bush: 2Cr13.
Fifth, connection size and standard:
1, standard: flange cast iron flanges GB4216.5-84 steel flanges GB9113-88, JB/T79-94;
2, flange sealing surface: PN10, PN16 PN40, PN64 convex concave and convex, concave body;
3, the length of the structure: GB12221-89;
4, insulation jacket type jacket heat carrier interface: 18X4 diameter welding;
5, the valve flange and the flange end face distance can be manufactured according to user specified standards.Such as ANSI, JIS, JPI and other standards.
Six, the main technical parameters:
Nominal DN (mm) | Twenty-five | Thirty-two | Forty | Fifty | Sixty-five | Eighty | One hundred | One hundred and twenty-five | One hundred and fifty | Two hundred | Two hundred and fifty | Three hundred |
Rated flow coefficient Kv | Confluence | Eight point five | Thirteen | Twenty-one | Thirty-four | Fifty-three | Eighty-five | One hundred and thirty-five | Two hundred and ten | Three hundred and forty | Five hundred and thirty-five | Eight hundred | One thousand two hundred and eighty |
shunt |
|
|
|
|
| Eighty-five | One hundred and thirty-five | Two hundred and ten | Three hundred and forty | Five hundred and thirty-five | Eight hundred | One thousand two hundred and eighty |
Rated stroke L (mm) | Sixteen | Twenty-five | Forty | Sixty | One hundred |
Inherent flow properties | Straight line, parabola |
Working temperature (C DEG) | Common type: cast iron: -20 ~ 200, -40 ~ 250, steel casting stainless steel: -60 ~ 250 Heat type: Steel: -40 ~ 450, -60 ~ 450 cast stainless steel |
The temperature of the medium (C) | 200 the following (the confluence for) |
The inherent adjustable ratio R | 30:1 |
Nominal pressure PN (MPa) | 1.6, 4.0, 6.4 |
Allowable leakage | Hard seal, soft seal: IV: VI |
Mode of action | Open and closed the electric power |
Signal range (mA.DC) | 0~10, 4~20 |
| 220V, 50Hz |
Seven, size (mm):
Nominal diameter | Twenty-five | Thirty-two | Forty | Fifty | Sixty-five | Eighty | One hundred | One hundred and twenty-five | One hundred and fifty | Two hundred | Two hundred and fifty | Three hundred |
Flange distance (L) | PN16 | One hundred and eighty-five | Two hundred | Two hundred and twenty | Two hundred and fifty | Two hundred and seventy-five | Three hundred | Three hundred and fifty | Four hundred and ten | Four hundred and fifty | Five hundred and fifty | Six hundred and seventy | Seven hundred and seventy |
PN40 | One hundred and ninety | Two hundred | Two hundred and twenty | Two hundred and fifty-five | Two hundred and eighty-five | Three hundred and ten | Three hundred and sixty | Four hundred and thirty | Four hundred and sixty-five | Five hundred and sixty | Six hundred and ninety | Seven hundred and ninety-five |
PN64 | Two hundred | Two hundred and ten | Two hundred and thirty-five | Two hundred and sixty-five | Two hundred and ninety-five | Three hundred and twenty | Three hundred and seventy | Four hundred and forty | Four hundred and seventy-five | Five hundred and seventy | Seven hundred and fifty-two | Eight hundred and nineteen |
Standard valve cover H1 | PN16 | Eight hundred and five | Eight hundred and twenty-one | Eight hundred and forty-three | Eight hundred and seventy-eight | Nine hundred and eighty-nine | One thousand and fourteen | One thousand and sixteen | One thousand one hundred and forty-nine | One thousand two hundred and ten | One thousand two hundred and thirty | One thousand nine hundred and eighty | Two thousand and one hundred |
PN40 | Eight hundred and five | Eight hundred and twenty-one | Eight hundred and forty-three | Eight hundred and seventy-eight | Nine hundred and eighty-nine | One thousand and fourteen | One thousand and sixteen | One thousand one hundred and forty-nine | One thousand two hundred and ten | One thousand two hundred and thirty | One thousand nine hundred and eighty | Two thousand and one hundred |
PN64 | Eight hundred and twenty-five | Eight hundred and forty-one | Eight hundred and sixty-three | Eight hundred and ninety-eight | One thousand and nine | One thousand and thirty-four | One thousand and fifty-six | One thousand one hundred and seventy-nine | One thousand two hundred and sixteen | One thousand and three hundred | Two thousand one hundred and twenty | Two thousand four hundred and sixty |
Medium temperature valve cover H1 | PN16 | One thousand and five | One thousand and twenty-one | One thousand and forty-three | One thousand and seventy-eight | One thousand two hundred and thirty-nine | One thousand two hundred and sixty-four | One thousand two hundred and sixty-six | One thousand four hundred and sixty-nine | One thousand five hundred and thirty | One thousand five hundred and fifty | Two thousand three hundred and thirty | Two thousand four hundred and fifty |
PN40 | Eight hundred and five | Eight hundred and twenty-one | Eight hundred and forty-three | Eight hundred and seventy-eight | Nine hundred and eighty-nine | One thousand and fourteen | One thousand and sixteen | One thousand one hundred and forty-nine | One thousand two hundred and ten | One thousand two hundred and thirty | Two thousand three hundred and thirty | Two thousand four hundred and fifty |
PN64 | One thousand and twenty-five | One thousand and forty-one | One thousand and sixty-three | One thousand and ninety-eight | One thousand two hundred and fifty-nine | One thousand two hundred and eighty-four | One thousand three hundred and six | One thousand four hundred and ninety-nine | One thousand five hundred and twenty-six | One thousand six hundred and twenty | Two thousand three hundred and seventy | Two thousand seven hundred and ten |
H2 | PN16 | One hundred and forty | One hundred and fifty | One hundred and sixty | One hundred and eighty | Two hundred | Two hundred and twenty-two | Two hundred and twenty | Two hundred and seventy | Two hundred and eighty | Three hundred and six | Four hundred and seventy-four | Five hundred and eighty-four |
PN40 | One hundred and forty | One hundred and fifty | One hundred and sixty | One hundred and eighty | Two hundred | Two hundred and twenty-two | Two hundred and twenty | Two hundred and seventy | Two hundred and eighty | Three hundred and six |
PN64 | shunt | One hundred and sixty | One hundred and seventy | One hundred and eighty | Two hundred | Two hundred and twenty | Two hundred and forty-two | Two hundred and sixty | Three hundred | Three hundred and twenty-two | Three hundred and seventy-six |
Confluence | One hundred and sixty | One hundred and seventy | One hundred and eighty | Two hundred | Two hundred and twenty | Two hundred and forty-two | Two hundred and sixty | Three hundred and twenty-five | Three hundred and twenty-two | Three hundred and seventy-six |
B | Four hundred and sixty | Five hundred and thirty | Six hundred and thirty |
Flange standard | GB:1.6, 2.5, 4, 300, 6.4MPa ANSI:150, 600Lb JIS:10K, 20K, 30K |
When ordering, please provide the following information:
1, the name and type of control valve;
2, nominal diameter (mm);
3, nominal pressure (MPa);
4, the rated flow coefficient (KV);
5, the inherent flow characteristics;
After 6, medium name, valve pressure, temperature and flow rate;
7, the mode of action (open, power off) and the input signal;
8, valve body, valve parts and packing material;
9, accessories (manipulator, servo amplifier, etc.);
10 and other special requirements.