In detail
What it is made of
How it works
Normally closed solenoid valve
Assisted-lift solenoid inset
The number that matters
Nominal pressure
10bar
The pressure class of the valve body at 20 °C. Working limits depend on the medium and its temperature.
Construction
Parts and materials
Applications
Media and industries
- Water
- Air
- Liquid Medium
- Heating Systems
- Irrigation Systems
- Ventilation Systems
An electric solenoid valve is a type of valve that uses an electromagnetic solenoid coil to control the flow of fluids or gases. When an electric current is applied to the solenoid coil, it generates a magnetic field that moves a plunger or a valve stem, allowing or stopping the flow of the fluid through the valve. Electric solenoid valves are commonly used in various applications such as irrigation systems, HVAC (heating, ventilation, and air conditioning) systems, industrial automation, and control systems, where remote control of fluid flow is necessary.
Characteristics of solenoid valves
| Parameter | Value |
|---|---|
| Nominal diameter DN, mm (inch) | 15–50 (1/2”–2”) |
| Nominal pressure PN, bar | for 220VAC DN15–50 – 10for 24VDC DN15–25 – 6for 24VDC DN32–50 – 5 |
| Minimum pressure, bar | 0 |
| Max. working medium temperature, °C | +180 |
| Ambient temperature, °C | from -20 to +65 |
| Working medium | steam, hot water, high-temperature liquid |
| Operating principle | zero differential pressure |
| Device type | normally closed |
| Pipe connection | threaded |
| Thread type | G |
| Coil power supply | AC220V or DC24V |
| Body material | brass or stainless steel AISI 304 |
| Seal | PTFE |
| Protection rating | IP65 |
| Coil insulation class | F |
| Coil design | Ø 2.5–4 mm: with DIN standard connectors (fully encapsulated)Ø 15–50 mm: with lead wires (fully encapsulated) |
| Average service life (open/close cycles) | 200,000 |
| Average lifespan, years | 5 (under non-aggressive media and average pressure and temperature conditions) |
Dimensions and installation dimensions of solenoid valves DNOVA DHP21-NZ G YS-018 24V
| DN | A | B | C | D | Weight, kg | |
| mm | brass | stell | ||||
| 15 | 67 | 56 | 122 | 107 | 0.8 | 0.8 |
| 20 | 80 | 60 | 140 | 123 | 1 0 | 1.0 |
| 25 | 92 | 72 | 151 | 129 | 1.5 | 1.4 |
| 32 | 96 | 75 | 175 | 149 | 2.1 | 1.9 |
| 40 | 118 | 93 | 183 | 153 | 2.7 | 2.6 |
| 50 | 150 | 116 | 202 | 167 | 4.5 | 4.1 |
Sketch of solenoid valve DNOVA DHP21-NZ G YS-018 24V
Detail of solenoid valves DNOVA DHP21-NZ G YS-018 24V
| No. | Part Name | Material |
|---|---|---|
| 1 | Valve body | brass or stainless steel AISI 304 |
| 2 | Body O-ring | PTFE |
| 3 | Piston assembly | stainless steel AISI 304 |
| 4 | Elastic ring | stainless steel AISI 304 |
| 5 | Piston ring | PTFE-filled |
| 6 | Spring | stainless steel AISI 304 |
| 7 | Plunger | stainless steel AISI 304 |
| 8 | Guide sleeve | PTFE-filled |
| 9 | Valve cap | brass or stainless steel AISI 304 |
| 10 | Screw | stainless steel AISI 304 |
| 11 | Gasket | stainless steel AISI 304 |
| 12 | Seal | PTFE |
| 13 | Metal washer | stainless steel AISI 304 |
| 14 | Plastic washer | – |
| 15 | Plunger tube | stainless steel AISI 304 |
| 16 | Coil | – |
| 17 | Washer | stainless steel SS 201 |
| 18 | Nameplate | aluminum alloy Ly12 |
| 19 | Gasket | stainless steel AISI 304 |
| 20 | Locknut M10 × 1 | stainless steel SS 201 |
Sketch of solenoid valve DNOVA DHP21-NZ G YS-018 24V
Main operating parameters DHP21-NZ G YS-018 24V
Technical parameters
| DN | G thread, inch | Ø cross-sections, mm | Cv |
| 15 | 1/2" | 15 | 4.8 |
| 20 | 3/4” | 20 | 7.6 |
| 25 | 1" | 25 | 12 |
| 32 | 1 1/4" | 32 | 24 |
| 40 | 1 1/2" | 40 | 30 |
| 50 | 2” | 50 | 48 |
Pressure and power
| DN | Nominal pressure, bar | Coil power | ||
| AC 220V | DC 24V | AC 220V, VA | DC 24V, W | |
| 15 | 10 | 6 | 23 | 28 |
| 20 | 10 | 6 | 23 | 28 |
| 25 | 10 | 6 | 48 | 42 |
| 32 | 10 | 5 | 48 | 42 |
| 40 | 10 | 5 | 48 | 42 |
| 50 | 10 | 5 | 48 | 42 |
Characteristics of solenoid valves DNOVA DHP21-NZ G YS-018 24V
| DN | G | Ø sections | Throughput capacity, m3/hour |
Working pressure min, bar |
| 8 | 1/4" | 2.5 | 0.2 | 0 |
| 8 | 1/4" | 3 | 0.25 | 0 |
| 8 | 1/4" | 4 | 0.30 | 0 |
| 15 | 1/2" | 15 | 4.8 | 0 |
| 20 | 3/4" | 20 | 7.6 | 0 |
| 25 | 1" | 25 | 11 | 0 |
| 32 | 1 1/4" | 32 | 24 | 0 |
| 40 | 1 1/2" | 40 | 29 | 0 |
| 50 | 2" | 50 | 45 | 0 |
| Working pressure (bar), max | Coil power, VA | Coil power, W | |||
| Steam, AC | Steam, DC | High temperature fluid, AC |
High temperature fluid, DC |
AC 220V | DC 24v |
| 10 | 8 | 10 | 8 | 22 | 13 |
| 6 | 5 | 6 | 5 | 22 | 13 |
| 4 | 3 | 4 | 3 | 22 | 13 |
| 10 | 6 | 10 | 6 | 23 | 28 |
| 10 | 6 | 10 | 6 | 23 | 28 |
| 10 | 6 | 10 | 6 | 48 | 42 |
| 10 | 5 | 10 | 5 | 48 | 42 |
| 10 | 5 | 10 | 5 | 48 | 42 |
| 10 | 5 | 10 | 5 | 48 | 42 |
- Body material
- Brass
- Maximum allowable temperature
- 180 °C
- Connection type
- Threaded G (BSPP), ISO 228
- Operating environment
- Water وAir وLiquid Medium
- Applications
- Heating Systems وIrrigation Systems وVentilation Systems
- Nominal pressure
- 10 bar
- Type of seal
- PTFE
- Locking material
- PTFE
- Solenoid valve type
- Normally closed
- Solenoid valve working principles
- Semi-direct acting
- Voltage
- 24V DC
Production. Usually 7–14 business days after you approve the quotation and pay. Made-to-specification items are confirmed in the quotation.
Freight. Not charged at checkout. A manager quotes air and sea freight to your port or airport, and nothing ships until you approve the price and the freight.
To North America. From approval and payment to the destination port or airport: air 14–24 days, sea 32–60 days. Estimates, not guarantees.
Terms. EXW Ningbo or FOB Ningbo Port; CIF on request. The agreed term is written on the Proforma Invoice.