(12) These are our most popular line of switches with a body that is 1 1/8 in square and are manufactured from aluminum and stainless steel materials. The stainless steel units are approved for the 15 minute FAA flame test requirement. For economy of weight and cost we do recommend the aluminum version. These units can be provided with many different connectors. These units also come in a variety of different pressure port connections and sizes. The range in pressures is from 1.5 PSIG to 400 PSIG. Also, it is used in vacuum service.
(15) These are similar to the 670 series except they have an MS electrical connector. The 1670 series has double pole, double throw, snap switch capability. These units come in a variety of port sizes and configurations as well as electrical connectors.
(4) This is the first dual differential switch manufactured. It can sense a differential pressure in any direction at either port. Its range in differential pressure capability is from 40 PSIG to 500 PSIG. It also comes in a variety of pressure ports and electrical connectors or none at all.
(25) These units are explosion proof pressure switches. They are similar to the ones preceding but are placed in explosion proof housings. The most popular ones are the 2658 series. Our dual differential pressure switches are used as the core of the unit. They are most commonly used on gas pipe line pumping units.
(2) This is a slightly larger unit than our standard 670 series. It measures 1.6 in square which allows it to be used at much lower pressure settings such as - 0.5 in Hg and +1.5 PSIG. It has a much lower hysteresis than the 670 series. It also comes in a variety of fittings and electrical connectors. They are in use in both vacuum and pressure service.
(49) These 2 5/8 in or 3 1/2 in diameter pressure switches are primarily used to measure very low airspeeds and cooling duct pressures. They have been used on fuel systems as well. These units can be used as vacuum, pressure or differential switches. The differential setting range for 654 series is from 1.5 in water column to 6 PSID and 0.5 in water column to 3 PSIG for 656 series. They come in a variety of pressure ports with or without electrical connectors. A popular use today for these units is in the prevention of premature retraction of the landing gear. These units are set at an airspeed which guarantees flight and only when that speed is reached can the landing gear be retracted.
(10) These 2 5/8 in or 3 1/2 in diameter pressure switches are primarily used to measure very low airspeeds and cooling duct pressures. They have been used on fuel systems as well. These units can be used as vacuum, pressure or differential switches. The differential setting range for 654 series is from 1.5 in water column to 6 PSID and 0.5 in water column to 3 PSIG for 656 series. They come in a variety of pressure ports with or without electrical connectors. A popular use today for these units is in the prevention of premature retraction of the landing gear. These units are set at an airspeed which guarantees flight and only when that speed is reached can the landing gear be retracted.
(74) These units are used in high pressure systems to control the pumps for landing gear and brake applications. They cover a pressure range from 3.0 to 2650 PSIG. Most models are externally adjustable. These units are made of aluminum or stainless steel. Many different types and sizes of pressure port fittings and electrical connectors are available.
Value Engineered Products
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