Group: AMETEK
Catalog excerpts
Liquid Float Level Switches DESCRIPTION External cage type level switches are completely self-contained units designed for side mounting to a tank or vessel with threaded or flanged pipe connections. These switches are engineered to customer specifications. FEATURES • Carbon or stainless steel welded float cages (other materials available at request) • Process temperature up to 400 °C (750 °F) • Up to 3 switch levels • Standard anti corrosive protection Flanged cages: - Removable sensing unit from cage allows easy maintenance - Specific gravity as low as 0,34 - Process pressure up to 62 bar (900 psi) Sealed cages: - Sensing unit and cage are self-containing - Specific gravity as low as 0,35 - Process pressure up to 138 bar (2000 psi) Optional: - NACE construction (MR-01-75) - Interface calibration - Customized installation dimensions - Special actuating levels - Code compliance construction - Special tank connections - Extreme temperature modifications - Class 1, Group B explosion proof electrical enclosure - Special exterior surface preparation and finish APPLICATIONS • Foaming or surging liquids • Agitated fluids • Sewage handling • Dirty liquids Standard & tailor made designs AGENCY APPROVALS Paints Varnishes Heavy oils Liquids with solids © For CCE approved units, use the ATEX explosion proof model numbers. © Consult factory for proper model numbers. Worldwide level and flow solutions
Open the catalog to page 1P R I N C I P L E O F O P E R AT I O N A permanent magnet A is attached to a pivoted switch B . As the float C rises following the liquid level, it raises the magnet attractor D into the field of the magnet, which in turn snaps against the non-magnetic barrier tube E , tilting the switch. The barrier tube provides a static seal between the switch mechanism and the float, eliminating the need for a flexing bellows seal, packing gland or other failure prone sealing elements. When the liquid level falls, the float draws the magnet attractor below the magnetic field. The magnet swings out and tilts...
Open the catalog to page 2Type of switch module ® ® For applications with heavy vibration, consult factory for suited switch modules. ® Max process temperature is specified at 40 °C (100 °F) ambient temperature and for non condensing applications. ® For more details - see bulletin BE 42-120. ® For condensing applications, max process temperature is down-rated to 200 °C (400 °F) @ 40 °C (100 °F) ambient. • For Non Ex use • IP 66 • Die cast Aluminium • 2 Entries (one plugged) • Standard blue anti corrosive coating • Housing heater/drain available, consult factory • For Exd/Exi use • IP 66 • Die cast Aluminium • 2...
Open the catalog to page 3Flanged Cages I I EXPEDITE SHIP PLAN (ESP) Several mechanical switches are available for quick shipment, within max. 3 weeks after factory receipt of purchase order, through the Expedite Ship Plan (ESP). Models covered by ESP service are conveniently grey coded in the selection data charts. To take advantage of ESP, simply match the grey coded model number codes (standard dimensions apply). ESP service may not apply to orders of ten units or more. Contact your local representative for lead times on larger volume orders, as well as other products and options.
Open the catalog to page 4SELECTION DATA A complete measuring system consists of: SWITCH MECHANISM & ENCLOSURE - for all units except B73 and B41 (see page 6) - for B73 and B41 units (see page 6) - for pneumatic switch mechanisms (see page 7) complete order code for caged models
Open the catalog to page 5Select pneumatic switch mechanism & enclosure ELECTRICAL CONNECTION
Open the catalog to page 7- All models except A75 - Housing type Allow 200 mm (7.87") overhead clearance / All housings are 360 ° rotatable ACTUATING LEVELS Actuating levels shown are for single switch units at minimum specific gravity only. Levels will change for multistage units. Consult factory for these units.
Open the catalog to page 8Threaded & socket weld upper side/bottom aluminium housing Housing type Allow 200 mm (7.87") overhead clearance / All housings are 360 ° rotatable ACTUATING LEVELS Actuating levels shown are for single switch units at minimum specific gravity only. Levels will change for multistage units. Consult factory for these units.
Open the catalog to page 10QUALITY ASSURANCE - ISO 9001 THE QUALITY ASSURANCE SYSTEM IN PLACE AT MAGNETROL GUARANTEES THE HIGHEST LEVEL OF QUALITY DURING THE DESIGN, THE CONSTRUCTION AND THE SERVICE OF CONTROLS. OUR QUALITY ASSURANCE SYSTEM IS APPROVED AND CERTIFIED TO ISO 9001 AND OUR TOTAL COMPANY IS COMMITTED TO PROVIDING FULL CUSTOMER SATISFACTION BOTH IN QUALITY PRODUCTS AND QUALITY SERVICE. PRODUCT WARRANTY ALL MAGNETROL MECHANICAL LEVEL CONTROLS ARE WARRANTED FREE OF DEFECTS IN MATERIALS AND WORKMANSHIP FOR FIVE FULL YEARS FROM THE DATE OF ORIGINAL FACTORY SHIPMENT. IF RETURNED WITHIN THE WARRANTY PERIOD; AND,...
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