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SWGL
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G & L-Series Multifunction Pressure & Temperature Switches FEATURES • Single setpoint, fixed deadband • Single setpoint, adjustable deadband • Dual setpoint G-Series L-Series BULLETIN SWGL-1 Ashcroft® is a supplier of highly reliable switches and controls for industrial and process applications. We stress total value to the customer. We begin with rock-solid designs, matching the most appropriate technology with the safety and reliability requirements of the applications. Materials of construction are specified to the exacting standards of Ashcroft®, and product is built to last in the toughest applications. Our modern, responsive manufacturing facility in Connecticut is supported by an extensive network of stocking distributors and factory sales offices located in virtually every part of the world. Special application assistance is always only a telephone call away. Ashcroft® pressure and temperature switches are designed for the tough applications where conventional designs often don’t measure up. A rugged 316 SS or epoxy-coated aluminum enclosure gives uncompromising protection. Materials of construction have been selected for long life. A wide variety of precision switch elements, including hermetically sealed contacts for added reliability and safety are available to meet every application requirement. The actuators we use have been proven in more than 40 years of service in the world’s plants and mills. Multiple features such as dual setpoints and adjustable deadbands are offered. Special designs are available for fire safety, limit control and other stringent requirements. Ease of use is stressed to improve reliability of the installation. G- and L-Series switches are currently being used successfully in pulp and paper mills, refineries, chemical and petrochemical plants, pharmaceutical plants, dairies, breweries, water and sewage treatment plants, steel mills, and other tough environments. Typical applications are on compressors, pumps, paint spraying equipment, boilers and burners, turbines, reverse osmosis systems, filters and presses. All specifications are subject to change without notice. All sales subject to standard terms and conditions. © Ashcroft Inc. 2007 8/07 Thermowells Thermowells must be used on any application where the stem of the temperature switch may be exposed to pressure, corrosive fluids or high velocity. Additionally, the use of a thermowell permits instrument interchange or calibration check without disturbing or closing down the process. Ashcroft temperature switches have bulb diameters to match 3⁄8˝ nominal bore thermowells. The bulbs have a sensitive portion length of 21⁄4˝ which can be used with 21⁄2˝ “U” dimensioned thermowells or longer. For maximum accuracy, a thermowell “U” dimension should be selected to permit complete immersion of the sensitive portion plus 1˝ when measuring the temperature of liquids; an extra 3˝ should be allowed when measuring the temperature of gases. Thermowell bushings should be used with remote mount temperature switches. We recommend the standard 3˝ bulb and code 69 Series bushings for use with any thermo-well “U” dimension. A split rubber grommet allows easy installation and “S” dimension adjustment. Ashcroft Inc., 250 East Main Street, Stratford, CT 06614 USA Tel: 203-378-8281 • Fax: 203-385-0408 email: info@ashcroft.com • www.ashcroft.com

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G & L-Series Multifunction Pressure & Temperature Switches Temperature Switches G- and L-Series temperature switches feature a SAMA Class II vapor pressure thermal system. This system provides quick, accurate response to process temperature changes with negligible ambient temperature effects. This is inherent in the design due to the precise relation-ship between temperature and pressure according to the vapor pressure laws. A wide selection of sensing bulb and armored capillary lengths are available. The vapor pressure system design features small bulb sizes, making installation easy and...

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G & L-Series Multifunction Pressure & Temperature Switches Pressure & Differential Pressure Switches G- and L-Series pressure, differential pressure and vacuum switches use two different actuators depending on setpoint requirements. For setpoints between 2 and 3000 psi, the simple, rugged diaphragm- sealed piston actuator is used. This design features high reliability and a choice of actuator seal materials for virtually every application. An optional welded design is also available for setpoints up to 1000 psi for maximum reliability. This design is available in 316 SS or Monel....

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G & L-Series Multifunction Pressure & Temperature Switches G- and L-SERIES PRESSURE SWITCH AND DIFFERENTIAL PRESSURE SWITCH ORDERING INFORMATION 1 G 1 – FUNCTION GPS/LPS - Pressure control, single setpoint, fixed deadband. GPA/LPA - Pressure control, single setpoint, adjustable deadband. GPD/LPD - Pressure control, two independently adjustable setpoints, fixed deadband. GDS/LDS - Differential pressure control, single setpoint, fixed deadband. GDA/LDA - Differential pressure control, single setpoint, adjustable deadband. GDD/LDD - Differential pressure control, two independently adjustable...

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G & L-Series Multifunction Pressure & Temperature Switches G- and L-SERIES TEMPERATURE SWITCHES ORDERING INFORMATION 1 2 3 4 5 6 7 8 G T A N 4 H 0 5 A 7 030 X N H 150°-260°F 1 – FUNCTION GTS/LTS - Temperature Control, Single Setpoint, Fixed Deadband 3 – SWITCH ELEMENTS FOR GTA/LTA CONTROLS Code GTA/LTA - Temperature Control, Single Setpoint, Adjustable Deadband H GTD/LTD - Temperature Control, Two Independently Adjustable Setpoints, Fixed Deadband J 2 – ENCLOSURE N4 - NEMA 4, 4X L-Series: Epoxy Coated, Die Cast Aluminum, IP66 G-Series: 316 SS IP65 Description/Maximum Electrical Ratings...

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