Coliter ® H-pattern Thermostatic Valve – 1.0 MPa, 0–100°C, for Hydronic Radiator Systems
NQ3010 H-pattern Thermostatic Valve – Brass Dual-Outlet Thermostatic Valve for Radiator Temperature Control
The Coliter® NQ3010 H-pattern Thermostatic Valve is a specialized brass thermostatic valve featuring an “H” configuration with dual outlets, designed for precise temperature regulation in hydronic radiator systems—operating without electricity. Its unique layout allows connection to both supply and return lines or dual radiator tails, offering versatile installation options in compact spaces. Constructed from high-quality lead-free brass, it is rated for a nominal pressure of 1.0 MPa and operates reliably within a temperature range of 0°C to 100°C. The valve complies with ISO 228 (BSP parallel) threading standards and is available in size DN20 (G1"), with dimensions B=20 mm, L1=120 mm, L2=187 mm, and H=32 mm. It features an M30×1.5 mm mounting thread on the head, compatible with standard automatic or manual thermostatic heads for adjustable room temperature control. Ideal for residential and light commercial heating systems seeking energy efficiency, comfort, and flexible piping arrangements.
Installation diagram
Product Description
| DN | G | B | L1 | L2 | H |
| 20 | G1" | 2025 | 120 | 187 | 32 |
Technical Specifications
Nominal Pressure: 1.0 MPa
Working Medium: Water
Working Temperature: 0℃ ≤ t ≤ 100℃
Pipe Threads: ISO 228
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Faq - Frequent questions
Introduction to Automatic Thermostatic Valve
Coliter®’s automatic thermostatic valves enable precise, energy-saving temperature control in hydronic radiator systems. The series includes straight (NQ1022, NQ1019, NQ1017) and angle (NQ1039, NQ1023, NQ1020, NQ1016) models with pre-set or adjustable thermal heads that automatically modulate hot water flow based on room temperature—no electricity required. Constructed from high-quality brass with lead-free compliance, rated at PN10 (1.0 MPa), and suitable for temperatures up to 110°C, these valves comply with European heating standards and feature M30×1.5mm mounting threads for universal thermostat head compatibility. Ideal for residential and commercial radiator retrofits—reducing energy consumption by up to 20% while enhancing comfort.
