Description
In a normally closed solenoid valve, the closed position is maintained if no control voltage is applied to the solenoid coil. When voltage is applied to the coil, the normally closed valve opens and allows the medium flow to pass through. When the control voltage is switched off, the valve closes automatically and cuts off the flow of medium in the pipeline. Solenoid valves are used in automobiles, special equipment, water supply systems and auto irrigation and heating systems. They are also widely used in industry to regulate and control the transportation of a variety of liquids and gases.
General technical specifications DNOVA VS731-PT-NC-24VAC solenoid valves, body material - stainless steel AISI 304, seal - PTFE, normally closed, coil - 24 VAC:
| 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) |
Solenoid valves VS731-PT-NC-24VAC, body material - Stainless steel AISI 304, seal - PTFE, normally closed, coil - 24 VAC
Dimensions and dimensions of DNOVA VS700-PT-NC-24VAC solenoid valves, body material - brass, seal - PTFE, normally closed, coil - 24 VAC:
| 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 |
Dimensional sketch of solenoid valves VS731-PT-NC-24VAC, body material - Stainless steel AISI 304, seal - PTFE, normally closed, coil - 24 VAC
Detail of solenoid valves DNOVA VS731-PT-NC-24VAC, body material - Stainless steel AISI 304, seal - PTFE, normally closed, coil - 24 VAC
| 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 VS731-PT-NC-24VAC, body material - Stainless steel AISI 304, seal - PTFE, normally closed, coil - 24 VAC
Main operating parameters DHP21-S-HЗ SS304 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, ВА | 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 |
Specifications
Delivery
The cost and delivery time for your order depend on several factors, including the specific product you are ordering, the quantity, and the country of destination. Each product may have different manufacturing lead times and shipping requirements, which can affect the overall delivery schedule.
To get the most accurate and up-to-date information on delivery costs and timelines, we recommend contacting our sales managers. They will be happy to provide you with a detailed quote and estimated delivery time based on your specific requirements.
Please feel free to reach out to us for any questions or further assistance regarding your order.