032F6225 EVRA 25 Flange Solenoid Valve For Ammonia
Product features of 032F803432 EVRA 25 Flange Solenoid Valve For Ammonia:
EVRA is a direct or servo operated solenoid valve for liquid, suction and hot gas lines with ammonia or fluorinated refrigerants. EVRA valves are supplied complete or as separate components, i.e. valve body, coil and flanges can be ordered separately. EVRA 25, 32 and 40 are servo operated piston valves.The valves are closed with currentless coil.The servo piston with main valve plate closes against the valve seat by means of the differential pressure between inlet and outlet side of the valve, the force of the compression spring and possibly the piston weight.When current to the coil is switched on, the pilot orifice opens. This relieves the pressure on the piston spring side of the valve. The differential pressure will then open the valve. The minimum differential pressure needed for full opening of the valves is 0.2 bar.
Overall dimension of 032F803432 EVRA 25 Flange Solenoid Valve For Ammonia:
Technical data of Danfoss Type NC Refrigeration Solenoid Valve For Refrigerant Control:
| Type | Opening differential pressure with standard coil ( ∆p bar) | Temperature of medium (°C) | Max. working pressure (bar) | kv-value (m³/h) |
| Min. | Max. (= MOPD) liquid²) |
| 10W AC | 12W AC | 20W DC |
| EVRA 3 | 0.00 | 21 | 25 | 14 | -40 to 105 | 42 | 0.23 |
| EVRA 10 | 0.05 | 21 | 25 | 18 | -40 to 105 | 42 | 1.5 |
| EVRAT10 | 0.00 | 14 | 21 | 16 | -40 to 105 | 42 | 1.5 |
| EVRA 15 | 0.05 | 21 | 25 | 18 | -40 to 105 | 42 | 2.7 |
| EVRAT15 | 0.00 | 14 | 21 | 16 | -40 to 105 | 42 | 2.7 |
| EVRA 20 AC | 0.05 | 21 | 25 | 13 | -40 to 105 | 42 | 4.5 |
| EVRA 20 DC | 0.05 | 19 | 21 | 16 | -40 to 105 | 42 | 4.5 |
| EVRAT20 | 0.00 | 14 | 21 | 13 | -40 to 105 | 42 | 4.5 |
| EVRA 25 | 0.20 | 21 | 25 | 14 | -40 to 105 | 42 | 10.0 |
| EVRA 32 | 0.20 | 21 | 25 | 14 | -40 to 105 | 42 | 16.0 |
| EVRA 40 | 0.20 | 21 | 25 | 14 | -40 to 105 | 42 | 25.0 |
Spare parts of 032F803432 EVRA 25 Cast Iron Body Ammonia Solenoid Valve:
Packing of 032F6225 EVRA 25 Servo-Piston Solenoid Valve With Two Flanges:
Specifications to the Component Supplier:
1. All pipes shall be cleaned inside with dry air to remove residues after production and capped on both ends.
2. Optionally primed on outer surface (batch number shall still be visible).
3. Main components should be cleaned and dried inside after pressure test and delivered sealed and slightly pressurized with inert gas.
4. Refrigerant should have a controlled water content following local recommendations or requirements and not higher than below.
Instructions to the Fitter:
1. Disassemble the valve top and clean, lubricate (e.g. with refrigerant oil), protect sealing parts and store in a clean/dry place.
2. Use only pipes that are still capped and clean.
3. Remove metal burrs after drilling and grinding, e.g. using air and/or a magnet.
4. Cap any open pipe ends and don’t leave any tool cloths, cigarettes, tools etc. inside the pipes.
5. Clean and lubricate valve housing sealing surfaces (e.g. with refrigerant oil) and protect openings against rain and dust, e.g. with plastic.
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