1. Úvod
This user manual provides essential information for the safe and efficient operation, installation, and maintenance of the Danfoss EV220B 032U7520 Solenoid Valve. Please read this manual thoroughly before installation or operation to ensure proper use and to prevent damage or injury.
2. Bezpečnostní informace
Always observe general safety precautions during installation, operation, and maintenance. Failure to follow these instructions may result in serious injury or property damage.
- Ensure power is disconnected before any installation or maintenance work.
- Instalaci a servis by měl provádět pouze kvalifikovaný personál.
- Verify that the valve's specifications match the system requirements (pressure, temperature, medium).
- Protect the valve from physical damage and extreme environmental conditions.
3. Popis produktu
The Danfoss EV220B 032U7520 is a robust 2/2-way servo-operated solenoid valve designed for use in various industrial applications. It features a 1/2 inch NPT connection and is suitable for neutral media. The valve is constructed from durable metal, ensuring long-term reliability.

Obrázek 3.1: Danfoss EV220B 032U7520 Solenoid Valve. This image shows the brass body of the valve with a threaded inlet/outlet and the cylindrical solenoid coil assembly extending upwards from the top.
Klíčové vlastnosti:
- Model: 032U7520
- Velikost připojení: 1/2 palce NPT
- Typ ventilu: 2/2-way, servo-operated
- Materiál: Metal (Brass body)
- Aplikace: Suitable for neutral media
4. Nastavení a instalace
Správná instalace je klíčová pro výkon a dlouhou životnost ventilu. Pečlivě dodržujte tyto kroky:
- Příprava:
- Ujistěte se, že je systém bez tlaku a vypuštěný.
- Clean the pipe threads to remove any debris or sealant residue.
- Verify that the flow direction arrow on the valve body matches the system flow.
- Montáž:
- Mount the valve in a position where it is easily accessible for maintenance.
- The valve can be mounted in any position, but mounting with the coil upwards is recommended for optimal performance and lifespan.
- Use appropriate thread sealant on the NPT connections.
- Tighten the valve securely into the piping system, avoiding overtightening which can damage the threads or valve body.
- Elektrické připojení:
- Connect the solenoid coil to the appropriate power supply as specified on the coil label.
- Ujistěte se, že všechna elektrická připojení jsou bezpečná a izolovaná, aby se zabránilo zkratu.
- Dodržujte místní elektrické předpisy a předpisy.
- Kontrola systému:
- After installation, slowly pressurize the system and check for leaks.
- Test the valve's operation by applying and removing power to the coil.
5. Návod k obsluze
The Danfoss EV220B 032U7520 is a normally closed (NC) solenoid valve, meaning it is closed when de-energized and opens when energized.
- Napájení cívky: When electrical power is supplied to the solenoid coil, it creates a magnetic field that pulls the plunger, opening the valve and allowing fluid to flow.
- Odpojení cívky od napájení: When power is removed from the coil, the magnetic field collapses, and a spring forces the plunger back to its original position, closing the valve and stopping fluid flow.
- Manual Override (if applicable): Some models may feature a manual override. Refer to specific product documentation if a manual override is present and how to use it safely. This model typically does not include a manual override.
Zajistěte provozní objtage and frequency match the coil's specifications to prevent damage and ensure proper function.
6. Údržba
Regular maintenance ensures optimal performance and extends the lifespan of your solenoid valve. Always disconnect power before performing any maintenance.
- Čištění: Periodically inspect the valve for dirt, debris, or corrosion. Clean the exterior with a soft, damp tkanina. Nepoužívejte abrazivní čisticí prostředky nebo rozpouštědla.
- Kontroly těsnosti: Regularly check all connections for signs of leaks. Tighten connections if necessary, but do not overtighten.
- Kontrola cívky: Inspect the solenoid coil for any signs of damage, overheating, or discoloration. Replace the coil if any damage is observed.
- Internal Inspection (Advanced): For internal component inspection or replacement (e.g., diaphragm, plunger), it is recommended to consult a qualified technician or refer to detailed service manuals provided by Danfoss. Ensure the system is fully depressurized and drained before opening the valve.
7. Řešení problémů
This section provides solutions to common issues. For problems not listed here, contact Danfoss technical support.
| Problém | Možná příčina | Řešení |
|---|---|---|
| Valve does not open when energized. |
|
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| Valve does not close when de-energized. |
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| Únik z přípojek. |
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8. Specifikace
Detailed technical specifications for the Danfoss EV220B 032U7520 Solenoid Valve:
- Číslo modelu: 032U7520
- Číslo dílu: G032U7520
- Typ ventilu: 2/2-way, Servo-operated, Normally Closed (NC)
- Velikost připojení: 0.5 Inches NPT (National Pipe Tapered)
- Počet portů: 2
- Materiál: Metal (Brass body)
- Hmotnost položky: Approximately 11 ounces (0.69 LBR)
- Rozměry produktu (D x Š x V): 2.5 x 3.75 x 2.13 palce
- UPC-EAN: 5702423044412
- Výrobce: Danfoss
- První k dispozici: 14. prosince 2016
9. Záruka a podpora
For specific warranty information regarding the Danfoss EV220B 032U7520 Solenoid Valve, please refer to the documentation provided with your purchase or visit the official Danfoss webZáruční podmínky se obvykle vztahují na výrobní vady po stanovenou dobu.
For technical support, service, or spare parts, please contact your authorized Danfoss distributor or visit the Danfoss global support portal. Provide the model number (032U7520) and serial number (if applicable) when seeking support.
Danfoss Official Webmísto: www.danfoss.com





