Coliter ® Premium Brass Angle Valve & PPR Thermostatic Valve, 1.6MPa, 0–90°C
NQ2022 Premium Brass Angle Valve & PPR Thermostatic Valve – Hybrid Radiator Control Valve for Modern Plastic Heating Systems
The Coliter® NQ2022 Premium Brass Angle Valve & PPR Thermostatic Valve is a high-performance hybrid radiator valve designed specifically for modern heating systems using PP-R (polypropylene-random) piping. It integrates a pure PP-R body with a brass ball core and stem, enabling reliable shut-off and precise thermostatic flow control while maintaining full compatibility with heat-fusion PP-R pipe networks—eliminating metal-to-plastic transition joints and reducing potential leak points. Available in angle configuration, it features standard G3/4" female threads for radiator connections and supports two common sizes: 20×25 mm and 25×32 mm. Rated for a nominal pressure of 1.6 MPa, it operates safely within a temperature range of 0°C to 90°C, making it ideal for radiator branches, underfloor heating manifolds, and energy-efficient residential installations. The valve ensures long-term corrosion resistance, thermal stability, and seamless integration into fully plastic hydronic circuits.
Installation diagram
Product Description
| DN | DE | G | H1 | H2 | L |
| 20*25 | 25 | G3/4" | 66 | 50.5 | 59 |
| 25*32 | 32 | G1" | 76 | 59.5 | 72.5 |
Technical Specifications
Nominal Pressure: 1.6 MPa
Working Medium: Water
Working Temperature: 0℃ ≤ t ≤ 90℃
Pipe Threads: ISO 228
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Faq - Frequent questions
Introduction to PPR Radiator Valve
Coliter®’s PPR radiator valves (including NQ2008-H, NQ2008-C, NQ2009-H) are specially designed for modern plastic-based heating systems using PP-R (polypropylene-random) piping. These valves combine a pure PP-R body with a brass ball core and stem, enabling reliable shut-off and flow control while maintaining full compatibility with heat-fusion PP-R pipe networks. Available in angle and straight configurations, they feature standard G1/2" female threads for radiator connections and are rated for PN20 (2.0 MPa) at 20°C and continuous operation up to 70–95°C. Ideal for underfloor heating manifolds, radiator branches, and energy-efficient homes—eliminating metal-to-plastic transition joints, reducing leak points, and ensuring long-term corrosion resistance.
