On/off valves represent essential control components in high-pressure washing systems, providing reliable flow management through simple open-or-closed operation. These two-position valves feature two ports (inlet and outlet) and are engineered to deliver precise water flow control across diverse professional applications, from self-service car wash installations to heavy-duty industrial cleaning operations.
Pneumatic on/off valves deliver automated flow control through compressed air actuation, making them ideal for remote operation and integration with automated systems. These valves are designed to be regulated by a compressed air circuit, automatically closing the water passage when air pressure is absent, providing an inherent fail-safe mechanism that enhances system safety. The normally closed configuration ensures that loss of air pressure immediately stops water flow, preventing potential equipment damage or safety hazards.
Emiltec's pneumatic valve range accommodates varied operational requirements, with models capable of handling pressures from 160 bar up to 500 bar and flow rates from 30 l/min to 120 l/min. This versatility enables application across multiple sectors, including self-service car wash systems, small urban cleaning vehicles, medium and large municipal cleaning trucks, sewer jetting operations, and industrial cleaning contexts requiring high pressures such as hydro sandblasting, paint removal, and hydrodemolition.
Foot valves provide manual flow control through pedal actuation, functioning as critical safety devices that place water flow management directly under operator control. These normally closed valves require continuous foot pressure on the pedal to maintain the open position, ensuring that water flow stops immediately when the operator releases the pedal. This hands-free operation allows operators to maintain full control of cleaning guns and lances while managing water flow with their foot.
Safety features include integrated latches that prevent accidental opening, along with mounting holes for secure installation. Foot valves are primarily used as safety devices on systems requiring large water flows, such as sewer jetting trucks, and on industrial cleaning equipment where operator safety and precise flow control are paramount. Performance specifications range from models handling 280 bar at 120 l/min for municipal applications, to heavy-duty industrial versions capable of 500 bar at 80 l/min for demanding operations like water sandblasting and hydrodemolition.
The manual, foot and pneumatic on/off valves in Emiltec's catalogue are manufactured to demanding industrial standards by recognized brands including Mtm Hydro and R+M. Many models feature Italian manufacturing, ensuring superior build quality, reliability, and compliance with stringent safety requirements. The robust construction ensures long service life even under continuous exposure to high pressures and demanding operational environments.
Choosing the appropriate on/off valve requires careful evaluation of operating pressure, required flow capacity, control method preference (manual foot operation or pneumatic automation), and specific safety requirements. Pneumatic valves excel in automated systems and remote applications, while foot valves provide direct operator control and immediate emergency shutoff capability. Emiltec's technical team is available to provide expert guidance in selecting the ideal on/off valve solution that matches your high-pressure system specifications and operational requirements.
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