The LF10 pressure switches are used to regulate the tank pressure between two preset values on electrically driven air compressors. They are available with an unloader valve, which prevents compressors from starting under load, and an auto-off disconnect lever for manual cut off the compressor. A four port manifold style is available which provides a means for easy mounting of valves and gauges.

The rugged LF17 pressure switch is designed for the demanding requirements of larger, heavy duty commercial air compressors (up to 250psi). The sturdy painted steel case and cover resist the harsh conditions encounted in industrial applications. This style is available with an unloader valve to prevent the compressor from starting under load.

LF16 Water pressure switch provide time tested, reliable control for automatic water supply systems. The switch is universally acceptable for use as original equipment on water pumps or pumping systems.

The LF17-W is a ruggedized water pressure switch designed to meet the requirements of heavy duty industrial pumping applications.

LF37 diaphragm pressure switch is available for various sumps, effluent, and sewage application to control the liquid level. Various switch settings are available for to turn-on or turn-off the pump. The diaphragm pressure sensing design make it more reliable than traditional float ball mechanism.

LF10-W pressure switch provide time tested, reliable control for automatic water systems. The switch is universally acceptable for use as original equipment on water pumps or pumping systems. Lf10-WR can prevent thepump from starting whenever the system falls considerable below cut-in pressure. Upon the restorations of the water supply, it will automatically cut-in. A manual reset level is depressed until a build up of system pressure permits automatic operation. Its simple design makes it easy to use for professionals and nonprofessionals alike.

LF31 pressure switch was designed for use in the HVAC industry where safety and reliability ar essential. Despite the design intent this series has proven to be a viable solution for many pneumatic applications as well. Available in vacuum, differential and pressure models with fine silver or gold cross bar contacts, the LF31 is capable of detecting pressures as low as .05 inches of water. Factory calibrated units maintain set point tolerances of +/-10% over a temperature range of -40 F to 185 F due to its molded silicone diaphragm and the stability of its glass filled polyester body. LEFOO offers multiple electrical terminations and mounting options as well as bleed holes and 3 different size orifices. This switch series is not only the leading product in the market offering the highest quality and reliability but is also the most economical.

LF32 switch is capable to sense tiny pressure change and widely used to control the flue of aerator, to monitor and fan and air conditioner; it is also for over heating protection and frost protection in industrial cooling system. Due to its outstanding design, the setpoint can been adjust visually.

LF31 pressure switch was designed for use in the HVAC industry where safety and reliability ar essential. Despite the design intent this series has proven to be a viable solution for many pneumatic applications as well. Available in vacuum, differential and pressure models with fine silver or gold cross bar contacts, the LF31 is capable of detecting pressures as low as .05 inches of water. Factory calibrated units maintain set point tolerances of +/-10% over a temperature range of -40 F to 185 F due to its molded silicone diaphragm and the stability of its glass filled polyester body. LEFOO offers multiple electrical terminations and mounting options as well as bleed holes and 3 different size orifices. This switch series is not only the leading product in the market offering the highest quality and reliability but is also the most economical.

LF32 switch is capable to sense tiny pressure change and widely used to control the flue of aerator, to monitor and fan and air conditioner; it is also for over heating protection and frost protection in industrial cooling system. Due to its outstanding design, the setpoint can been adjust visually.

LF37 diaphragm pressure switch is available for various sumps, effluent, and sewage application to control the liquid level. Various switch settings are available for to turn-on or turn-off the pump. The diaphragm pressure sensing design make it more reliable than traditional float ball mechanism.

LF40-01 can be used togethr with an air button (also called as Actuator ) for remote control purpose. It is widely used in food waste disposers, pumps for swimming pools and spas, hot tubs, sanitary equipments, out door machines,medical equipments ect. As remote control switch, it i small enough to fix in the control box of the engine. Used as a remote control the air switch has two actions:

1. Momentary action: when the air button is pushed, the air switch is actuated. When the air button is released, the air switch will also be released. This is the way the basic pressure switches are working.
2. Alternate action (also referred to as latching or bistable): the first pushing on air button actuates the air switch, and the air switch keep acuating when air button is released. A second push on the air button will release the air switch.

LFS-01 pressure switch is applied to detection of negative pressure, widely used in electrical appliance such as the vacuum cleaner, paking etc. It provides solder pin connections and is especially designed for mounting on "Printed Circuit boards".

LFS-02 pressure switch is designed as an economical interface between pressure systems and Printed Circuit Boards. This switch can be used as a gauge or differential pressure switch with almost no hysteresis. Features of this switch include a body design that allows the pressure ports to be rotated, various terminal styles including wire leads. Strong and reliable, LFS-02 is a popular choice for many manufacturers.

LF25 pressure switch is to control the pressure of application with higher current catacity. It is widely used in stream cleaner, stream iron and othe pressure control system. It provides SPST or SPDT contact form and switch deadband (also referred to as mechanical differential or hysteresis).

LF25 switch utilize high-quality miniature snap-action switches. The switch is diaphragm operated. Diaphragm material can be selected for the opering medium, temperature range and other parmeters. During the development of a specification, acuation point can be adjusted by the designer, in production, factory setting is required.

The LF20 pressure switch is specifically designed to stand up to extended duty applications. This switch is factory set but capable of field adjustment. It features different diaphragms for compatibility with a wide variety of fluids, and various terminations including a Metri-Pack connector that forms a tight seal when connected. Among the outstanding design benefits are its durable construction, compact size, and enhanced set point integrity.

It can be widely used for pool and spa, anti-skid braking systems, water pump systems, and dental air compressors, heavy construction, off road applications and other pressure control systems.