WILLIAMS CONTROLS part description

The WM630-101 is a reinforced version of the WM630B, a normally closed, non-compensating, three-way relay valve that is operated by air, vacuum, or hydraulic signal. A low pressure signal is required to open the valve against a minimum 100 PSI (6895 kPa) supply. Part Number: RELAY NC AIR/VAC Manufactured by Brake Systems.

A division of Curtiss-Wright Corporation, Williams Controls® specializes in aftermarket electronic, hydraulic, and pneumatic control solutions for commercial vehicles. Originally founded in 1937 to manufacture brake components for logging trucks, it has grown into one of the leading producers of control systems for the heavy duty vehicle market. It has also pioneered key products and technologies such as the pneumatic controls and electronic throttle controls for trucks and buses. Today, Williams Controls offers a comprehensive lineup of hand, joystick, throttle controls, adjustable pedal systems, handrest systems, and sensors for all commercial vehicles. All products are manufactured under a strict Quality and Environmental System and comply with ISO standards.

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