Detailed Description ZAZ (PNM) electric control valve: ZAZP electric single seat control valve, ZAZN electric valve seat, ZAZM electric sleeve valve is DKZ type electronic control execution unit, which is the production process automatic control system One of the important part, it AC220V power supply voltage for the action, accept a unified standard signal 0 ~ 10mA DC or 4 ~ 20mA DC, this converted input signal corresponding to the upper and lower displacement, automatically operated valves, valve change opening displacement, so as to achieve a fluid medium such as process piping automatically adjust the pressure, flow, temperature, level and other parameters of control. ZAZP, ZAZN, ZAZM electric control valve can be divided according to the mode of action; a positive effect: electric closed - normally open (when the electrical signal increases valve downward displacement), "B-type" reaction: Electric open - often closed (when the electrical signal increases valve upward shift), "K-type" ZAZP, ZAZN, ZAZM electric control valve is widely used in chemical, petroleum, metallurgy, power, textile, paper and pharmaceutical industries automation of production processes regulation and remote control. There are standard, bellows seal type, jacket insulation and other varieties of products pressure levels have PN1.6 4.0 6.4MPa;. Nominal diameter DN20 ~ 300mm; For fluid temperature -40 ~ + 450 ℃; press equipped with high and low temperature Bonnet different type can be divided into normal, high temperature; there is equal percentage flow characteristics (log) sex, straight sex. ZAZP electric single seat control valve type DKZ straight away from the actuator and low flow resistance straight single-seat valve. It is only one seat and a piston-shaped valve body, with good sealing ability. Guide part (upper and lower double guided or top guide bushing type) structure, has a guide area, anti-vibration performance characteristics, suitable for medium leakage, there are strict requirements of the occasion, but because the valve structural imbalances larger force on the stem , especially in the nominal diameter larger more obvious conditions, thus the valve is only suitable for working pressure smaller occasions. ZAZN electric valve seat straight away by the DKZ type electric actuator and two-seat pass-through low flow resistance valves, two-seat double guided structure, the spool in the displacement process is stable and reliable, the valve body has two seats and two piston-shaped valve body, fluid medium flowing through the upper and lower valve seat, with a flow rate, allow pressure large, small unbalanced force, is a balanced structure seat valve, which is not a very clean, medium and leakage requirements are not strict occasions. ZAZM electric control valve sleeve by the DKZ electric actuator and straight low Balanced flow resistance sleeve valves, valve with a pressure-balanced valve plug structure, the spool is cylindrical, the inner circle of the guide sleeve and the top guide, and thus the valve stem unbalanced force is small, stable operation good performance, is a force balance type of valve suitable for high pressure differential across the valve before and after the case, since the valve body has a lateral guide sleeve, shock vibration generated by the eddy current is reduced, it has a noise low cavitation flash effect, long life and other advantages, but the seat leakage rate is slightly larger than the single seat valve. Electric control valve actuator model DKZ-310 / 310C DKZ-410 / 410C DKZ-510 / 510C thrust N 4000 6400 16000 or a 10 16 2,530,183,040,603,050 60 100 the travel time S 8 12.5 20 24 15 24 32 48 16 30 37 62 DKZ straight trip type electric actuator with DDZ-Ⅲ type instrument supporting the use and assembly can be equipped with instruments and TA instrument. It is powered with 220V power supply 4 ~ 20mmA.DC, this into the the input signal corresponding to the linear displacement of the shaft is automatically operated control valve or other terminal agencies to complete the automatic adjustment task, or equipped for manual remote control with an electric operator. The instrument has a continuous adjustment, manual remote control, local hand-operated three control modes using DKZ straight trip actuator automatically adjust the system to be equipped with ZPE-3101 servo amplifier can automatically adjust the system manually ← → automatic bumpless after DFD-1000 type electric or manual operator action. Rated Capacity sleeve valve electric control valve Performance Item Index Basic error% ≤ ± 5.0 Hysteresis% ≤3.0% ≤3.0 dead zone leakage single-seat valve 10-4 × valve rated capacity of 10-3 × valve seat valve 10-3 × valve rated capacity of the electric control valve to allow pressure usage spool in the flow state, after closing the valve when the pressure P2 = 0 nominal diameter DN (mm) seat diameter DN (mm) Effective thrust actuator ( N) to allow pressure (MPa) electric single seat control valve PN1.6 (MPa) PN6.4 (MPa) 20 10 12 15 20 400,1000,2500 Nominal Nominal 3.8 2.7 1.7 1.0 4.3 2.5 25 26 400,1000 2500 0.5 3.6 3232 0.4 0.6 Nominal Nominal 0.4 2.3 4040 0.7 1.0 0.7 1.5 400,1000 2500,6400 50 50 0.5 1.0 0.5 1.0 6566 1.4 1.4 8080 6400,16000 1.0 0.6 0.6 1.0 100 100 1251256400 16,000 0.5 1.0 0.5 1.0 150 150 0.7 200 200 0.3 0.7 0.3 0.2 0.4 0.2 0.4 25,025,016,000 0.2 0.2 0.3 0.3 300 300 electric control valve main parts Material Material Code C (WCB) P (304) R (316) Main Parts Valve body, bonnet WCB (ZG230-450) ZG1Cr18Ni9Ti (304) ZG1Cr18Ni12Mo2Ti (316) plug and seat 1Cr18Ni9Ti (304) or by the Secretary titanium alloy welding Levin 1Cr18Ni9Ti (304) or by the Secretary titanium alloy welding Levin 1Cr18Ni12Mo2Ti (316) or titanium alloy welding Secretary Lai stem 2Cr13 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti packing V-type PTFE (F4), flexible graphite, stainless steel bellows gasket PTFE (F4), stainless steel spacer, metal graphite spiral wound gasket putter bush 2Cr13 applicable conditions applicable medium water, steam, oil type gas liquid gas liquid alkali corrosive nitric acid and other corrosive gas or liquid at room temperature class type -30 ~ + 250 F4: ≤200 ℃ -40 ~ + 250 F4: ≤200 ℃ -40 ~ + 250 ℃ F4: ≤200 ℃ high temperature -30 ~ + 450 ℃ -40 ~ + 450 ℃ -40 ~ + 450 ℃ electric control valve main technical parameters Nominal diameter mm 20 25 32 40 50 65 80 100 125,150,200,250,300 seat diameter mm 20 25 32 40 50 65 80 100 125 150 200 250 300 Rated flow coefficient Kv single base 5 8 1,220,325,080,120,200,280 450 800 1200 seater 1016254063 1,001,602,504,006,301,000 1600 sleeve full quantity of 3,550,125,190,400,630 0.6 9,203,075,115,240,350 rated stroke L (mm) 10 16 25 40 60 100 Executive Model DKZ-310 DKZ-310 DKZ-310 DKZ -410 DKZ-410/510 DKZ-510 shaft thrust N? m 4000 4000 4000 6400 6400/16000 16000 full travel time S 8 12.5 20 32 48/37 62 Power supply voltage AC220V 50Hz input signal 4 ~ 20mA DC 0 ~ 10mA DC Ⅱ type input impedance: 200Ω Ⅲ type: 250Ω electric mode of action open (K) type, electric-close type (B) Flow characteristics Equal percentage, linear, quick opening of the allowable leakage rate (L / h) single-seat ≤10- 4 × valve rated capacity; seater ≤10-3 × rated capacity; sleeve: ≤10-3 × valve rated capacity inherent adjustable ratio R 30: 1 Nominal pressure PN (MPa) 1.6 2.5 4.0 6.4 electric control valve main external size electric single seat control valve, electric seat control valve nominal diameter DN A × BLH H1 ZAZP ZAZN single seat two-seater PN1.6 PN4.0 PN6.4 common type heat sink type common type heat sink type ZAZP ZAZN 20 230 × 460 180,185,190,653,804 / / 91/25185190205665 816,670,820,112,104 32,200,210,220,671 822,673,823,118,107 40,220,230,240,683 834,693,843,129,126 50,250,255,265,698 849,698,848,144,131 65 230 × 530 275 285 295 789 949 799 959 175 175 80 305 310 325 792 952 809 969 191 190 100 350 355 370 796 956 821 981 195 202 125 260 × 630 410 425 440 847 1062 872 1087 243 250 150 450 460 475 855 10708821097251 260 2,005,505,605,708,941,109 9,241,139,290,302,250,670 69075011561368 11561368380422 300 740 78581512151427 12151427435484 electric single seat control valve, electric control valve sleeve nominal diameter DN L (mm) A × BH (mm) H1 (mm) PN16 PN40 PN64 ordinary type heat sink 25 185 200 210 230 × 460 668 819 75 40 220 235 251 684 835 95 50 254 267 286 684 835 98 80 295 317 337 230 × 530 785 946 130 100 350 368 394 795 946 156 150 450 473 508 260 × 630 945 1160 208 200 600 615 650 945 1160 250 250 650 670 690 1050 1320 265 300 740 770 800 1145 1380 295 Ordering :( country Standard) a, A: product name, model number, nominal diameter B: medium and temperature, pressure range C: Are there attachments, delivery, special requirements so that we can correct for your selection. Second, if the company has been selected by the design of the valve type, please directly contact our sales center to order according to the valve parameters. Third, when you use the occasion is very important or the environment is more complicated, please provide design drawings and detailed parameters, our engineers can concentrate on your expert review and analysis of four, the above prices are nominal price, please contact us. We can provide you with professional solutions, including design, custom, sets, run the service. We have been committed leader in the field of valve industry, to provide you with the latest knowledge of valves, the best service, the best technical adviser. If you have any questions, you can call us, we will try our best to provide you with quality services. We aspire to be the world's leading manufacturer of valves. That the Crown has a sound quality assurance system and excellent after-sales service system. 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