Motorized Globe Valve For Precise Flow Regulation HVAC Heating System
motorized globe valve with accurate flow regulation performance, for heat-exchange, HVAC and water-treatment process control.
Description
1. Product Overview
The motorized globe valve is a linear‑stroke valve, distinct from 90°‑rotary electric ball valves. An electric actuator drives the stem to move the disc vertically, altering the clearance between the disc and seat – primarily enabling flow regulation, while also offering full shut‑off capability. A manual override is provided for local operation.
Modulating actuators accept 4‑20 mA or 0‑10 V analogue signals for continuous stepless control; on‑off versions handle only full open/close duties. The valve supports threaded and flanged connections, with excellent high‑temperature resistance. It is widely used in heating exchange stations, central air‑conditioning, and process water treatment where flow modulation is required.
2. Materials & Technical Specifications
| Parameter | Detail |
|---|---|
| Nominal sizes | 1/2″ ~ 4″ (DN15–DN100) |
| Connection type | BSP/NPT threaded; flanged optional |
| Body material | Brass / SS304 / SS316 stainless steel |
| Supply voltage | DC24V, AC110V/120V/220V |
| Actuator type | On‑off / Modulating (4‑20 mA, 0‑10 V) |
| Key characteristics | Flow regulation, linear‑stroke construction, suitable for high‑temperature water/steam |
| Optional features | Manual override, position feedback signal output |
| Working pressure | 0.1–1.6 MPa |
| Medium temperature | 0–180°C |
| Applicable media | Hot water, steam, cooling water, clean water, mildly corrosive process fluids |
3. Application Scenarios
Typical deployments include district heating exchange stations, central air‑conditioning water systems, boiler auxiliary piping, water‑treatment process lines, heating networks, light‑chemical process pipelines, and building temperature control systems.
4. Real‑World Project
At the Heiz‑Technik Köln district heating exchange station in Cologne, Germany, the motorized globe valve has been extensively adopted across the heating network. Its flow‑adjustment capability dynamically modulates hot‑water delivery in response to thermal load changes, stabilising supply temperatures across different zones. For applications requiring only on‑off control, the 2‑wire motorized globe valve is selected to simplify control‑cabinet wiring.
5. Selection Guide & Distinctive Strengths
The core strength lies in its flow‑modulation function – the linear‑stroke disc varies the flow passage, enabling precise, continuous control of flow rate and differential pressure. This goes beyond simple open/close operation, making it ideal for heating and air‑conditioning systems with fluctuating loads.
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For applications where a PLC outputs analogue signals for continuous adjustment → prioritise the modulating motorized globe valve.
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For corrosive media → prefer the stainless‑steel body (stainless steel motorized globe valve).
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For systems requiring actual valve‑position feedback → choose the signal feedback motorized globe valve.
Note: This valve has higher flow resistance than ball valves; system pressure‑drop calculations should account for this. For steam or high‑temperature hot‑water services, always verify the valve’s temperature rating.The product holds CE certification. We provide actuator selection tables, wiring schematics, and dimensional drawings to facilitate system design and project acceptance for overseas contractors. Bulk orders are welcome, and separate replacement actuators are available to reduce future maintenance costs.
