3/4″ Electric Ball Valve Full Port DN20 Compact Low Pressure Drop
3/4″ electric ball valve DN20 full-port, compact size for HVAC, water purification and irrigation automatic control.
Description
1. Product Overview
The 3/4″ electric ball valve (DN20) is a highly common automated valve for residential and light‑commercial applications. It features a full‑port (full‑bore) ball with an unobstructed internal opening, minimising pressure drop across the valve. A compact body is paired with an electric actuator that drives the ball through a 90° rotation for on/off control.
A manual override allows local emergency operation, and an optional spring return mechanism provides fail‑safe closure upon power loss. The valve is primarily available with NPT or BSP female threads for easy installation. The full‑bore design avoids the flow restrictions typical of reduced‑port valves, making it ideal for HVAC, water purification, small‑scale irrigation, and other medium‑or‑small piping systems where flow capacity matters.
2. Materials & Technical Specifications
| Parameter | Detail |
|---|---|
| Nominal size | 3/4″ (DN20) |
| Ball type | Full port (full bore) |
| Connection | BSP / NPT female thread |
| Body material | Brass / SS304 / SS316 stainless steel |
| Supply voltage | DC12V/24V, AC110V/120V/220V |
| Control wiring | 2‑wire basic / 5‑wire with position feedback |
| Key features | Full‑bore high flow, compact footprint, suited for residential and light‑commercial duty |
| Optional functions | Manual override, spring‑return fail‑safe |
| Working pressure | 0.1–1.6 MPa |
| Medium temperature | 0–95°C |
| Applicable media | Tap water, hot circulating water, irrigation water, mildly corrosive fluids |
3. Application Scenarios
Typical uses include residential HVAC branches, domestic water‑purification systems, zone control in small‑to‑medium irrigation, compact swimming‑pool equipment, boiler feedwater, laboratory fluid lines, and small‑scale water‑treatment units.
4. Real‑World Project
Clima‑Serv Barcelona, an HVAC contractor in Spain, has deployed the 3/4″ electric ball valve in bulk on individual apartment heating branches. The full‑bore configuration ensures adequate water flow for each unit, delivering stable heating performance without the shortfall caused by throttling. For standard on‑off control on ordinary lines, the 2‑wire 3/4″ motorized ball valve is selected to simplify equipment wiring.
5. Selection Guide & Distinctive Strengths
The key strength lies in its full‑bore design: the ample ball opening offers minimal flow resistance, avoids creating a system bottleneck, and preserves the designed flow rate while reducing pressure losses.
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For systems where a central controller needs to read the actual valve position → choose the 5‑wire 3/4″ electric ball valve.
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For corrosive water media → prefer the stainless steel 3/4″ electric ball valve.
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For unattended feedwater or irrigation → configure with the spring return 3/4″ electric ball valve for automatic shut‑off on power failure, preventing overflow.
Note: For this DN20 full‑port valve, verify actuator torque ratings when the medium differential pressure is high to ensure complete opening/closing.
The product holds CE and RoHS export certifications; the actuator is rated IP54. Customisation options include voltage, thread type, and body material. Each shipment includes English technical documentation and dimensional drawings to facilitate OEM integration and project acceptance for overseas equipment manufacturers. Bulk deliveries are supported, and separate replacement actuators are available to reduce future maintenance costs.
