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US Normally Closed Pilot Operated Piston Water Steam Solenoid Valve
COVNA Brass and Stainless steel steam solenoid valve is widely used for automatic control of high temperature gas or liquid fluid. High quality stainless steel material is used for precision casting. The internal parts are processed and ground at high temperature to ensure that there will be no deformation under high temperature. Imported high temperature wear-resistant sealing materials are used for sealing parts, and the temperature resistance can reach about 700 ℃.
- Model: US
- Size Range: 1/2''~2''
- Pressure Range: 0.03MPa-1.6 MPa
- Material: Stainless Steel or brass
COVNA US Serial brass and stainless steel steam solenoid valve with high performance:
Heat resistance: special heat-resistant electrical materials and sealing materials are used for electromagnetic coils and seals, and various heat insulation measures are applied.
Wear resistance: the material selection is reasonable, and the lubrication effect of the fluid is skillfully used between the valve cup and the guide sleeve to reduce wear.
Corrosion resistance: the main parts, such as valve plug and valve body, are made of stainless steel, with good corrosion resistance and long service life.
Condensation water of steam pipeline is an important factor affecting the action of steam solenoid valve, and this valve is not affected by condensation water.
The valve core adopts a special structure of hard sealing, which can automatically compensate the wear clearance. The seal ring between the piston sleeves has a built-in elastic rack, which can automatically adjust the fit clearance according to the change of the medium temperature, suitable for gas or liquid use. Widely used in high temperature system, steam system, drying equipment, heating system, heat transfer oil pipeline, industrial oil supply system, petrochemical equipment filtration equipment, etc
| Port Size | 1/2″, 3/4″, 1″, 1¼”, 1½”, 2″ | Orifice(mm) | 12,15,20,25,32,40,50 |
| Port Connection | G, BSP,NPT | Function | Normally closed or opened |
| Pressure | 0.00MPa-1.6MPa | Voltage | DC-12V, 24V, 36V; AC-24V, 120V, 240V/60Hz; 110V, 220V/50Hz |
| Temperature of media | -10~180℃ ;-10~220℃ | Suitable Media | Stem, hot water, civil gas, air oil. |
| Material | Stainless steel or Brass | Sealing Material | EPDM, VITON,NBR, PTFE |
| Coils | Y32B , 40VA ( AC ) , 18W ( DC ) , Ip65 , 100 % ED
Y42B , 50VA ( AC ) , 20W ( DC ) , Ip65 , 100 % ED |
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Working principle of high temperature steam solenoid valve:
Normally closed: when the solenoid coil is powered on, the solenoid core is closed, the pressure relief hole is opened, the main piston is driven by the medium pressure, and the main valve port is opened. When the coil is powered off, the main valve port is closed and the medium is cut off.
Normally open: when the solenoid coil is powered on, the solenoid core is closed, the pressure relief hole is closed, the main piston is driven by the medium pressure, and the main valve port is closed. When the coil is powered off, the main valve port is opened and the medium flows.
