Coliter ® Pressure Reducing Valve – PN16, ≤80°C, Hydraulic Self-Operated for Stable Outlet Pressure in Water Systems
200X Pressure Reducing Valve – Pilot-Operated Intelligent Valve for Precise and Reliable Downstream Pressure Control
The Coliter® 200X Pressure Reducing Valve is a hydraulically self-operated, pilot-controlled valve designed to automatically reduce high inlet pressure to a stable, adjustable outlet pressure—maintaining consistent downstream pressure regardless of fluctuations in upstream pressure or flow demand. It is extensively used in domestic water supply, fire protection systems, industrial process lines, and municipal networks to protect piping, fixtures, and equipment from overpressure damage while ensuring reliable service performance. The valve harnesses the energy of the flowing medium itself—requiring no external power source—and features a sensitive pilot relief valve that continuously monitors outlet pressure. When downstream pressure rises above the setpoint, the pilot opens to drain the control chamber of the main valve, causing it to throttle flow and lower pressure; when pressure falls below the setpoint, the pilot closes, allowing the main valve to open further. This closed-loop feedback ensures high-precision regulation with minimal deviation. Constructed from ductile iron or cast steel, rated at PN16 (1.6 MPa), and suitable for media temperatures up to 80°C, it is designed exclusively for clean water applications. Available in sizes from DN20 to DN800 with flanged end connections per GB/T 17241.6. With advantages including stable performance, easy adjustment, long service life, low maintenance, and energy-efficient operation, the 200X delivers intelligent pressure management for modern water distribution infrastructure.
Installation diagram
Product Description
The 200X pressure reducing valve is an intelligent valve that uses the energy of the medium to adjust and control the pressure of the pipeline. The 200X pressure reducing valve is used in domestic water supply, fire water supply and other industrial water supply systems. By adjusting the pressure reducing pilot valve, the outlet pressure of the main valve can be adjusted. The outlet pressure does not change due to changes in the inlet pressure and inlet flow rate. The outlet pressure is maintained at the set value safely and reliably, and the set value can be adjusted as needed to achieve the purpose of decompression. The valve has precise pressure reduction, stable performance, safety and reliability, easy installation and adjustment, and long service life.
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Introduction to Hydraulic control valve
Coliter®’s hydraulic control valves are pilot-operated, multi-function automatic valves designed for intelligent water system management in high-rise buildings, fire protection, and municipal networks. The series includes the 600X electric hydraulic control valve (remote on/off via solenoid), 500X pressure relief/pressure reducing valve, 400X flow control valve, 300X slow-closing check valve, 200X pressure sustaining valve, and the LHS743X low-resistance backflow preventer. All models use system pressure as the driving force—requiring no external power—and feature brass or ductile iron bodies, Y-strainer integration, and precise pilot control for stable operation. Rated at PN16 (1.6 MPa) and suitable for temperatures up to 80°C, they ensure safe, energy-efficient, and code-compliant water distribution with automatic response to demand changes.
