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The Series PLS Paddle Level Switch uses a 1 rpm synchronous motor to rotate a paddle and sense the presence of dry powder or bulk materials. Movement is impeded when product comes into contact with the paddle and the resulting motor torque activates the output switches and stops the motor. The PLS is designed with the industry standard 1-1/4″ male NPT connection and mounting flanges.
Retail price from $50,45
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The Series PLS2 Paddle Level Switch is an electromechanical level switch designed for level monitoring of bulk materials. The rotating measuring vane is driven by a brushless synchronous motor at one revolution per minute and as product builds up, the paddle rotation is impeded and the resulting motor torque activates the output switch and stops the motor. The PLS2 is designed with the industry standard 1-1/4″ male NPT connection and unit can be side or top mounted.
Retail price from $351.90
Available
These heavy duty top-mounted liquid level controls operate in pressurized or non-pressurized tanks and sumps with pressures to 600 psi and temperatures to 500°F. They can be ordered to operate at depths to 12 feet with a 12 foot guide rod. Adjustable in single stage and two stage operation to provide action such as operating a pump; pump and high alarm or shutdown; pump and low alarm, or high and low alarm; or high, high alarm; or low, low alarm. Alarm functions can also be used as shutdowns. Series 401 is available in mercury or snap action contact switches. Specific gravity applications from 0.5 to 1.0.
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The reliable 301 Series has proven to be a rugged economical choice for top mounting on tanks where side mounting is not practical, or for use in sumps. These units feature a fixed deadband for high or low alarm or shutdown. This control can be mounted on top of any closed or open tank or sump by use of the 3/4″ NPT connection. Flanges are also available in various sizes, pressure rating and material to meet any installation. Several size floats are available to accommodate liquids to a specific gravity of 0.5 and depths to 12 feet.
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Inexpensive yet rugged construction in a welded chamber control. The Series 291/293/294 Welded Chamber Level Control is specifically designed for single stage operation where pressure does not exceed 350 psig (24 bar) at 100°F (38°C) or 300 psig (21 bar) at 600°F (315°C) available with a variety of hermetically sealed snap switch or mercury switch circuits protected by a general purpose, weatherproof or explosion-proof enclosure and will accommodate specific gravities down to 0.60.
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Heavy duty flanged chamber features removable float for ease of inspection and maintenance. The 221 Series also provides 1″ NPT for standard external mounting. Socket weld hubs or flanges are optional. Rugged C1-75 construction is suitable for operation at 1000 psi (69 bar) at 100°F (38°C), and 850 psig (59 bar) at 475°F (246°C) with a minimum specific gravity of 0.75. C1-60 construction is suitable for operation at 600 psig (41 bar) at 100°F (38°C), and 550 psig (38 bar) at 475°F (246°C) with a minimum specific gravity of 0.60. Models featured can be ordered with various circuits including SPST, SPDT, or DPDT with hermetically sealed snap action or mercury contacts. A full range of enclosures are available including general purpose, weatherproof, explosion-proof, or explosion-proof – vapor proof.
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Leak proof all welded heavy duty carbon steel bodies coupled with snap action or mercury switches provide reliable, long term service for compatible liquids. The use of an external magnet reduces the possibility of magnetic particle build-up inside the armature tube and subsequent loss of operation as may occur with the internal magnet repulsion design. A variety of snap action or mercury switches in SPST, SPDT, DPDT or DPST configurations will satisfy most electrical requirements. These switch assemblies are contained in NEMA 1 general purpose, NEMA 4X weatherproof, NEMA 7, 9 groups B, C, D, E, F, G, explosion-proof or explosion-proof – vapor proof enclosures.
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Low minimum specific gravity of 0.40 and rugged flanged chamber for inspection purposes helps insure superior long term performance. Control can be used at maximum process pressure of 450 psig (31 bar) at 100°F (38°C), and 300 psig (21 bar) at 500°F (260°C). Standard 1″ NPT connections are provided for mounting. 19 socket weld hubs or 1″ flanges are available as options. Hermetically sealed snap switch or mercury switches are provided in a variety of circuit configurations such as SPST, SPDT, or DPDT. High or low DC applications can also be accommodated. General purpose, weatherproof, explosion-proof, or explosion-proof – vapor proof enclosures are provided.
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Adjustable deadband, flanged chamber and side mount are featured in the heavy duty reliable 215 series. A choice of four operating styles are offered: 1. Single stage adjustable deadband suitable for pump operation; 2. Two stage operation with adjustable lower stage, fixed upper stage for pump and high alarm; 3. Fixed lower stage and adjustable upper stage for pump and low alarm; 4. Fixed upper and lower stage for high and low alarm. Alarm stages can also be used for shutdown. Adjustable level changes are available in increments of 12″, 24″, 36″, or 48″.
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Heavy duty and low cost is the perfect description for the Series 391 Level Control level control. Stainless steel switching mechanism uses gravity return action instead of springs for long life. Weatherproof enclosure is standard. Welded steel chamber is good for 650 psig (45 bar) at 600°F (315°C).
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Low specific gravity and superior long term performance make this Series ideal for applications which require operation at specific gravities as low as 0.40. This Series also provides a heavy duty flanged chamber with removable stainless steel float for easy inspection and maintenance. Chamber is rated for operation of 1000 psig (69 bar) at 100°F (38°C), and 850 psig (59 bar) at 475°F (246°C). 1″ NPT process connections are standard. Socket weld hubs or flanged connections are optional. Various circuits are available in SPST, SPDT or DPDT configurations with hermetically sealed snap action or mercury contacts. Enclosures are general purpose, weatherproof, explosion-proof, or explosion-proof – vapor proof.
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- High pressure capability in a heavy duty welded carbon steel chamber provides a rugged heavy duty control to operate up to 1750 psi (121 bar) at 100°F (38°C), and 1650 psi (114 bar) at 500°F (260°C) with a minimum specific gravity of 0.60. Electrical enclosures are suited for general purpose NEMA 1, weatherproof NEMA 4X, explosion-proof or explosion-proof – vapor proof NEMA 7, 9 groups B, C, D, E, F, G, Division I and II requirements. Electrical requirements are met by use of hermetically sealed snap action or mercury switches in a variety of actions including SPST, SPDT, DPDT and DPST arrangements. Optional circuits are available for low current, low DC voltage, high DC current, or high temperature applications. Check the model chart for the switch best suited for your application.
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Adjustable deadband, flanged chamber and side mount are featured in the heavy duty reliable 225 series. A choice of four operating styles are offered: 1. Single stage adjustable deadband suitable for pump operation; 2. Two stage operation with adjustable lower stage, fixed upper stage for pump and high alarm; 3. Fixed lower stage and adjustable upper stage for pump and low alarm; 4. Fixed upper and lower stage for high and low alarm. Alarm stages can also be used for shutdown. Adjustable level changes are available in increments of 12″, 24″, 36″, and 48″.
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Adjustable deadband combined with direct 2-1/2″ threaded or 2-1/2″ flange mount makes the reliable, heavy duty Series 500 Insertion Type Level Control ideal for liquid level control in large or small tanks. Chambers are available in cast iron, cast steel or cast 316 stainless steel to meet the most demanding application. Float rods are available from the standard 6″ (152.4 mm) up to 24″ (610 mm) long providing action down to a specific gravity of 0.55. 2-1/2″ (64 mm) float is suitable for pressure of 400 psig (28 bar), 2-1/2″ x 4″ (64 x 102 mm) float is suitable for 200 psig (14 bar). Maximum operating temperature is 425°F (218°C). A variety of circuits can be ordered including SPST, SPDT or DPDT with hermetically sealed snap action or mercury contacts. Single pole, double throw electrically independent circuits are available as well as contact for high or low DC current applications. A full range of enclosures are available such as general purpose, weatherproof, explosion-proof or explosion-proof/vapor proof..
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A removeable stainless steel float enclosed in a flanged carbon steel chamber is featured in the durable, field proven 1241 series. External side mount series includes 1″ NPT process connections as standard or 1″ flanges as options. Pressure and temperature limits are 1440 psi (99 bar) at 100°F (38°C) and 1275 psi (87.9 bar) at 475°F (246°C). Minimum specific gravity for all models is 0.60. The models shown can be ordered with a variety of electrical arrangements including SPST, SPDT, or DPDT circuits in hermetically sealed snap action or mercury contacts. Switches can be ordered open on level rise or fall. Single pole double throw electrically independent circuits are available as well as low current or high DC current applications. A full range of enclosures are offered including general purpose NEMA-1; weatherproof NEMA-4X; (explosion-proof) and (explosion-proof – vapor-proof) groups B, C, D, E, F, G, NEMA-7-9.
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Long life and reliable operation is inherent in the design of the 205 series. The heavy duty welded carbon steel chamber provides a control to operate up to 1250 psi (86 bar) and process temperature up to 650°F (343°C), 400°F (205°C) at the electrical head assembly. The use of an external magnet reduces the possibility of magnetic particle build up inside the armature tube and subsequent loss of operation as may occur with the internal magnet repulsion design. Choice of construction provides equipment suitable for specific gravity as low as (0.75). Electrical requirements are met by use of hermetically sealed snap action or mercury switches in a variety of actions including SPST, SPDT, DPDT and DPST arrangements. Optional circuits are available for low current/voltage DC; high current DC; or high temperature applications. Check the current chart for the switch best suited for your application. Standard process connections are combination 1″ NPT and 1″ socket weld hubs. Flanged connections are offered as an option. Contact factory for ANSI B31.1.
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One of our most versatile level controls, the Series 190 can be used on all types of tank or sump level control applications.
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The Series B-190 Liquid Level Switch-Control is a top mount displacer type level control. They work on the principle that submerged solids weigh less in liquids, and as the liquid level rises and their weight decreases, the tension on the spring by which they are suspended is decreased. This Series is offered in a range of cable lengths, specific gravities, circuit types and enclosure ratings.
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The Series F7-MM Miniature Multi-Station Level Switches provides a customized level switch to meet application requirements in a miniature size. Control up to five different level points across a maximum length of 48″ (121 cm). Stems and mounting fixtures are available in 316 stainless steel or brass.
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The Series F7-MQ Quick-Ship Multi-Station Level Switches provides a customized level switch to meet application requirements. Switches can be configured with up to four different control points and stem lengths up to 72″ (1.82 m). Stems and floats are available in 316 SS or brass, SPST or SPDT switches, and choice of mountings.
price by request
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price by request
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The Series F7-MS Multi-Station Level Switches provides a customized level switch to meet application requirements. Switches can be configured with up to six different control points and stem lengths up to 140″ (3.56 m). Stems and floats are available in 316 SS or brass, SPST or SPDT switches, and choice of mountings.
price by request
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