HV Series Hand Rotary Valve: Complete Guide To HV-02, HV-04 & HV-200B Manual Pneumatic Control Valves 2026-07-17
This comprehensive guide provides an in-depth overview of the HV Series hand rotary valves, including models HV-02, HV-04, and HV-200B. These manually operated directional control valves are essential components in pneumatic systems where reliable, cost-effective manual control is required without electrical power. The article covers the working principle based on spool rotation, detailed technical specifications (flow rates from 500 to 1200 L/min, operating pressure 0-1.0 MPa, temperature range -10 to 60°C, G1/4 to G1/2 port sizes), and structural features including aluminum die-cast bodies and NBR seals. Special attention is given to the HV-200B model, explaining its two-position four-way configuration with side ports and bottom exhaust. Application scenarios span industrial automation, manufacturing, chemical processing, food and beverage, and mining industries. Installation guidelines, maintenance procedures, troubleshooting tables, and selection criteria are provided to assist eng
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