Coliter ® Differential Pressure Valve, 1.6MPa, -20–120°C, Adjustable 0.02–0.3MPa, Lead-Free Brass
YC1001 Differential Pressure Valve – Self-Operated Hydraulic Balancing Valve for Stable Flow in HVAC and District Energy Systems
The Coliter® YC1001 Differential Pressure Valve is a self-operated, lead-free brass control valve designed to automatically maintain a constant pressure difference across heating, cooling, or district energy circuits—ensuring stable flow distribution, protecting variable-speed pumps from overload, and enhancing system energy efficiency. Featuring an adjustable differential pressure range of 0.02–0.3 MPa, an integrated needle valve for fine-tuning, and optional pressure gauge ports, it delivers precise hydraulic balancing without external power or control signals. Rated at PN16 (1.6 MPa) and suitable for water media within a temperature range of -20°C to 120°C, it complies with GB/T 22130 standards. Available in sizes DN15 (G1/2") to DN50 (G2"), with compact dimensions and ISO 228 (BSP parallel) threads. Ideal for radiator systems, underfloor heating manifolds, chiller bypass lines, and commercial HVAC applications—providing noise reduction, thermal comfort, and long-term hydraulic stability.
Installation diagram
Product Description
| DN | G | H | L |
| 15 | G1/2" | 83.5 | 72 |
| 20 | G3/4" | 83.5 | 72 |
| 25 | G1" | 87.5 | 80 |
| 32 | G1¼ | 103.5 | 85 |
| 40 | G1½ | 103.5 | 90 |
| 50 | G2" | 103.5 | 100 |
Technical Specifications
Nominal Pressure: 1.6 MPa
Working Medium: Water,
Working Temperature: -20℃ ≤ t ≤ 100℃
Pipe Threads: ISO 228
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Faq - Frequent questions
Introduction to Differential Pressure Valve
Coliter®’s differential pressure control valves, led by the YC1001 self-operated model, automatically maintain a constant pressure difference across heating, cooling, or district energy circuits—ensuring stable flow distribution and protecting variable-speed pumps from overload. The YC1001 features a lead-free brass body, adjustable differential pressure range (0.02–0.3 MPa), integrated needle valve for fine-tuning, and optional pressure gauges. Rated at PN16 (1.6 MPa) and suitable for temperatures up to 120°C, it complies with GB/T 22130 standards. Ideal for radiator systems, underfloor heating manifolds, and chiller bypass lines—delivering energy savings, noise reduction, and hydraulic stability without external power or control signals.
