Heating System Brass Thermostatic Blending Valve DN40 2.5 NM Torque
temperature control valve for radiators, best zone valve control for heating system
General description
The brass temperature control valves are used to control the temperature of fluid in the heating and cooling systems. They are suitable for process control and flow control to reach the optimized temperature adjustment. It consists of: motorized valve, actuator motor, and a thermal sensor.
Our advantages
- More than 50 types, diameter ranges from DN15 to DN40, it features small torque, low electricity consumption,leak-proof, high pressure rating.
- Customized production available, thanks to our strong mechanical machining and milling capability
- Sturday valve body with reasonable structure design, and best material to be used

| No | Name | Material | Advantage |
| 1. | O-ring |
Import fluoro rubber (green) |
Resistance to high temperature, oil, corrosion, chemicals, Work temp.: —30℃+280℃.Quadruple seals, minimize the risk of leakage. |
| 2. | Drainage | Drain just in case leakage happens | |
| 4 | 0-ring | EPDM (red) | Between nut and valve body, extra external leak proof, reduce the possibility of internal leak |
| 8. | Ball | Brass or SS304 | Finely polished, rack nickel plating (not barrel plating), smooth surface, improved torque performance |
| 9. | Water proof G | Avoid water into housing, seal between valve body and valve housing |
| No | Name | Material | Advantages |
| 5. | Wall thickness | 2.0mm, PN20 | |
| 6. | Teflon washer | Import teflon |
1. Import teflon tube, numerical processing to perfectly match with ball surface 2. Minimal deformation, polish surface, wearable |
| 7 | 0-ring | EPDM |
1. Good elasticity, as buffer after Teflon washer to improve seal effect 2. Reasonable structure design, ensures perfect holding margin |
Product dimensions
| Valve body material | Connection port | Diameter | D | L | H | W |
| (mm) | (Kg) | |||||
| Brass | Both female thread full diameter | DN8 | 8 | 46 | 31 | 0.357 |
| DN15 | 15 | 57 | 38 | 0.433 | ||
| DN20 | 20 | 71 | 45 | 0.513 | ||
| DN25 | 23.5 | 72 | 49 | 0.603 | ||
| Both female threaded reduced diameter | DN10 | 8 | 46 | 31 | 0.356 | |
| DN20 | 15 | 66 | 38 | 0.448 | ||
| DN25 | 20 | 72 | 47 | 0.608 | ||
| DN32 | 25 | 86 | 60 | 0.82 | ||
| 3-way vertical | DN15 | 12 | 63 | 49 | 0.434 | |
| DN20 | 15 | 66 | 53 | 0.492 | ||
| Female-male thread full port | DN15 | 15 | 63 | 38 | 0.432 | |
| Female-male thread reduce port | DN20 | 15 | 66 | 38 | 0.462 | |
| Both male thread | DN15 | 15 | 68 | 38 | 0.424 | |
| Stainless steel | Both female thread full diameter | DN8 | 8 | 46 | 31 | 0.364 |
| DN15 | 15 | 55 | 38 | 0.44 | ||
| DN20 | 20 | 71 | 45 | 0.508 | ||
| DN25 | 25 | 72 | 49 | 0.617 | ||
| Both female threaded reduce diameter | DN15 | 8 | 46 | 30.5 | 0.368 | |
| DN20 | 15 | 63 | 39 | 0.513 | ||
| DN25 | 20 | 75 | 47 | 0.608 | ||
Applications range
- HVAC, heating supply systems
- Air conditioning systems
- Baseboard/radiant heating
- Convectors
- Fan coil units
- Floor heating
- Unit ventilators
- VAV reheat
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
