Model NQ2026

Coliter ® Straight Manual Thermostatic Valve – 1.0 MPa, 0–100°C, for Hydronic Radiator Systems

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NQ2026
NQ2026.1
NQ2026
NQ2026.1

NQ2026 Straight Manual Thermostatic Valve – Brass Temperature Control Valve for Radiators

The Coliter® NQ2026 Straight Manual Thermostatic Valve is a manually operated thermostatic radiator valve designed for simple, reliable temperature regulation in hydronic heating systems—without requiring electricity. Its straight-through configuration ensures minimal flow resistance and straightforward installation in-line with supply piping. The valve features a manual knob with numbered settings (typically 1–5) to adjust heat output based on user comfort preferences. Constructed from high-quality lead-free brass, it is rated for a nominal pressure of 1.0 MPa and operates safely within a temperature range of 0°C to 100°C. It complies with ISO 228 (BSP parallel) threading standards and is available in size DN15 (G1/2"), with dimensions L=87.5 mm, H=62 mm, and A=38 mm. The valve head includes an M30×1.5 mm thread, allowing optional upgrade to an automatic thermostatic actuator for smart climate control. Ideal for cost-effective, maintenance-free comfort in residential and light commercial buildings.

Installation diagram

Product Description

DNGBLHA
15G1/2"1687.56238

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

Coliter®’s manual thermostatic valves provide simple, reliable temperature regulation for hydronic radiator systems without electricity. The series includes straight models (NQ2026, NQ2027, NQ2029) and angle types (NQ2012, NQ2028, NQ2030, NQ2039), all featuring a manual knob with numbered settings (e.g., 1–5) to adjust heat output based on user preference. Constructed from high-quality lead-free brass, rated at PN10 (1.0 MPa), and suitable for temperatures up to 110°C, these valves comply with European heating standards and include an M30×1.5mm thread for optional upgrade to automatic thermostatic heads. Ideal for cost-effective, maintenance-free comfort control in residential and light commercial buildings.