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Electric three-way merging and diverging regulating valve
Model specifications ZYHDH, ZYHDF nominal diameter 25-300mm pressure range 1.6, 4.0, 6.4MPa applicable media water, oil, steam, etc
Product details
main features
ZYHDH and ZYHDF electric three-way merging control valves and electric three-way diversion control valves adopt cylindrical slotted window valve core guidance. Equipped with DKZ type linear electric actuator, it accepts 0-10 or 4-20mADC signal to drive valve opening and closing. The three-way merging regulating valve is used to mix two fluids into a third fluid, or to mix the same fluid at different temperatures into the same temperature fluid. A three-way splitter valve divides a fluid into two streams. The nominal diameter of the electric three-way merging regulating valve and the electric three-way diversion regulating valve ranges from 25mm to 330mm, with nominal pressures of PN1.6, 4.0, and 6.4Mpa. They are suitable for liquid temperatures ranging from -60 ℃ to 450 ℃, with control signals of 0-10 or 4-20mADC. The leakage standard is Class IV and VI, and the flow characteristics are linear and parabolic. There are two types of valve covers that can be used: ordinary type and heat dissipation type. *The performance indicators of this electric control valve comply with GB/T4213-92
Design features and execution standards
Valve body and valve coverWCB、HT200、ZG230-450、ZG1Cr18Ni9Ti
Valve core and seat1Cr18Ni9Ti、 Si Ti Lai alloy overlay welding
fillerPolytetrafluoroethylene, stainless steel corrugated pipe
Valve stem push rod2Cr13、1Cr18Ni9Ti
bush2Cr13
shimRubber asbestos board, 1Cr18Ni9Ti, graphite wrapped gasket
Inherent flow characteristicsStraight lines, parabolas
Working temperature (℃)
Ordinary type: cast iron: -20~200, cast steel: -40~250, cast stainless steel: -60~250
Heat dissipation type: -40~450, cast stainless steel: -60~450
Medium temperature (℃)Below 200 (for merging valves)
Inherent adjustable ratio R30：1
Nominal pressure PN (Mpa)1.6, 4.0, 6.4
Allowable leakage amountHard seal: Grade IV, soft seal: Grade VI
actionElectric open type, electric closed type
Signal range (mA. DC)0-10, 4-20
supply voltage220V、 50HZ
scope of application
Urban construction, chemical industry, metallurgy, petroleum, pharmaceuticals, food, beverage, environmental protection
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