Pilot Piston Type Magnetic Valve
manufacturer: Shanghai MeiYan Yi Pump & Valve Co., Ltd.
Eml: sales@1bengfa.com
Tel: +86 (21) 5640 2009
Mob: +86 138 1691 3072（WeChat Same Account）
product drawing
Pilot piston type magnetic valves
Structure characteristics
Electromagnetic indirectly pilot diaphragm type operation structure, when the automatic control.
1 not affect by the steam and condensate,
2 the medium fluid temperature, can reach 200 ° c,
3 the main valve core adopts special materials, wear resistance,
4 valve spool of fluid lubrication, reducing attrition,
This valve USES pilot structure, applies to large diameter series.
Applicable scope
Apply to heat superheated steam, water, oil, water, air, and widely used in steam heaters, dryer, petrochemical industry, pharmacy, food, cement products and environmental protection departments of the control system.
Structural principle
This valve pilot twice open valve magnetic valve, which is constituted by two components: main and vice valve. The switch of the main valve is controlled by the on and off of the vice valve. According to the power switch state, the place is different, can be divided into normal closed and open solenoid valves. Normal Closed solenoid valves, often in a breakpoint, vice valve is closed, the main valve mouth, when the telecommunications enters breakers, pilot valve coil of core activities by the electromagnetic absorption effect, the deputy valve opens a valve pressure of the pressure is rapidly disappearing, medium main valve of the main valve opens onto the cup, the working medium, can flow. But when the telecommunications, disappeared, the activity, the core, valve closed the medium from balance aperture, when entering valve, pressure on equilibrium of the main valve spring, valve and the medium weight cup pressure valves, tight seal moves cups of the main valve, the valve is closed mouth again. Normal open solenoid valves, and often in power, vice valve spring, the main valve opens mouth. When the telecommunications enters vice valve, iron wire by electromagnetic activity effect when pressure is closed down by the equilibrium, valve spring, valve and the medium weight cup pressure valves, tight seal moves cup, the valve is closed valves. When the valve is cut, electromagnetic valve is opened, vice-president of the main valve, pressure in the cup quickly disappear, the medium pressure on the valve, the valve opens the cup, the circulation medium, the valve is opened.
Dimensions & constructral diagram
Pilot piston type dimension drawing(pic1)
Pilot piston type dimension drawing(pic2)
technical parameter
| parameter/type | ZCZP-1 | ZCZP-2 | ||||||||
| working medium | normal temperature liquid,gas etc. | high temperature liquid,gas etc. | ||||||||
| mediumtemperature(℃) | ≤60 | ≤220 | ||||||||
| voltage of power supply | AC220V other specification can be special order | |||||||||
| working pressure(MPa) | 0.04～1.6 | 0.1～1.6 | ||||||||
| nominal diameter(mm) | 40 | 50 | 65 | 100 | 125 | 150 | 200 | 250 | 300 | 350 |
| power | 24W | 50VA | ||||||||
| body material | brass and stainless steel | cast steel or stainless steel | ||||||||
| flow factor(Kv) | by JB/T7352-94 | |||||||||
installation dimensions
| nominal diameter DN | internal threadconnecting | flange connecting | ||||||||
| internal thread | external dimensions | external dimensions | flange dimensions | |||||||
| G | H | L | H | L | D | D1 | D2 | n-d | b | |
| 40 | 11/2 | 200 | 145 | 244 | 141 | 150 | 110 | 84 | 4--Φ18 | 18 |
| 50 | 2 | 210 | 160 | 250 | 158 | 165 | 125 | 94 | 4--Φ18 | 20 |
| 65 | 260 | 290 | 185 | 145 | 118 | 4--Φ18 | 20 | |||
| 80 | 260 | 310 | 200 | 160 | 132 | 8-Φ18 | 20 | |||
| 100 | 290 | 350 | 220 | 180 | 156 | 8-Φ18 | 22 | |||
| 125 | 365 | 400 | 250 | 210 | 184 | 8-Φ18 | 22 | |||
| 150 | 400 | 480 | 285 | 240 | 211 | 8-Φ18 | 24 | |||
| 200 | 443 | 600 | 340 | 295 | 266 | 8-Φ18 | 24 | |||
| 250 | 493 | 750 | 395 | 350 | 319 | 12-Φ26 | 26 | |||
| 300 | 549 | 850 | 445 | 400 | 370 | 12-Φ26 | 28 | |||
| 350 | 600 | 980 | 520 | 470 | 429 | 16-Φ26 | 30 | |||
