Description
Clorius G3F Three-Way Control Valve (DN20–DN65)
High-Pressure Three-Way Control Valve for Industrial Heating and Process Systems
The Clorius G3F DN20–DN65 is a PN25 three-way globe control valve designed for precise flow regulation in hot water and hot oil systems. Suitable for both mixing and diverting applications, the G3F valve is commonly paired with Clorius thermostatic regulators or electric and pneumatic actuators to provide accurate temperature control in industrial processes, district heating plants, central heating systems, and marine installations.
Key Features
- Three-way globe control valve
- Nominal sizes: DN20, DN25, DN32, DN40, DN50, DN65
- Pressure rating: PN25
- Suitable for mixing and diverting service
- EN-GJS-400-15 nodular cast iron body
- Stainless steel spindle, seats and valve cone
- Two balanced single-seat design
- Tight shut-off with leakage ≤ 0.5% of Kvs
- Quadratic/linear flow characteristic for stable control
- Same Kvs value for both mixing and diverting applications
- Flanged connection according to EN 1092-2 PN25
- ISO 228 G1B actuator connection thread
Benefits
Precise Temperature Control
The G3F valve delivers stable modulation of flow for heating and process systems. Its balanced seat construction minimizes actuator force while maintaining excellent control accuracy throughout the operating range.
High Pressure Capability
With a PN25 pressure rating, the G3F is ideal for demanding industrial systems requiring higher pressure performance than conventional PN16 control valves.
Durable Industrial Construction
The valve body is manufactured from EN-GJS-400-15 nodular cast iron, while all critical internal components—including the spindle, seats, and valve cone—are made from stainless steel, providing excellent corrosion resistance and long service life.
Optimized Hydraulic Performance
The valve maintains the same Kvs value whether installed as a mixing valve or a diverting valve, simplifying system selection and hydraulic calculations. The quadratic and nearly linear flow characteristics ensure stable control under varying load conditions.
Typical Applications
The Clorius G3F DN20–DN65 is suitable for:
- District heating substations
- Central heating systems
- Industrial process temperature control
- Hot water circulation
- Thermal oil systems
- Marine heating and cooling systems
- Heat exchangers
- Utility process piping
- Energy plants
Technical Specifications
| Specification | Value |
|---|---|
| Model | G3F |
| Valve Type | Three-Way Globe Control Valve |
| Function | Mixing / Diverting |
| Nominal Size | DN20–DN65 |
| Pressure Rating | PN25 |
| Body Material | EN-GJS-400-15 Nodular Cast Iron |
| Seat Material | Stainless Steel |
| Cone Material | Stainless Steel |
| Spindle Material | Stainless Steel |
| O-Ring | FPM (Viton) |
| Gasket | Graphite with Stainless Steel Foil |
| Seat Design | Two Balanced Single Seats |
| Flow Characteristic | Quadratic / Nearly Linear |
| Leakage Rate | ≤0.5% of Kvs |
| Regulating Capability | Kvs/Kvr >25 |
| End Connection | EN 1092-2 PN25 Flanged |
| Counter Flange | DIN 2634 |
| Actuator Thread | G1B ISO 228 |
| Compatible Media | Hot Water, Hot Oil |
| Installation | Vertical or Horizontal |
Why Choose the Clorius G3F?
The Clorius G3F DN20–DN65 combines PN25 pressure capability, balanced seat technology, and a robust nodular cast iron construction to provide reliable and accurate temperature control. Its stainless steel internal components, tight shut-off performance, and compatibility with a wide range of Clorius actuators make it an excellent solution for industrial heating, thermal oil systems, marine applications, and district energy networks.
