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TUFFY® II

TUFFY® II
12Pages

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TUFFY® T3 Side Mounting Level Controls Tuffy liquid level switches are ﬂoat actuated devices designed for horizontal mounting in a tank or vessel through threaded or ﬂanged pipe connections. The compact size allows for installation in small vessels, while its many features provide a variety of application uses. The single switch mechanism is available in SPDT or DPDT forms on units designed for adjustable, narrow or wide differential and interface service. Compact and cost effective Maximum Process temperature: +400 °C (750 °F). Minimum Process temperature: -55 °C (-65 °F). Maximum process Pressure: 150 bar abs (2160 psi). Speciﬁc gravities as low as 0.4. Wetted parts in 316/316L (1.4401/1.4404) or Hastelloy C (2.4819). Available as: - Flanged - Threaded - Flanged or sealed cage mounted. External cage mounted Tuffy Shut-off valve Narrow differential switch (for alarm functions) - standard pressure (up to 50 bar abs (720 psi) - high pressure (up to 150 bar (2160 psi). Wide adjustable differential switch (for control functions) Interface switch (detection of interface level between liquids). External cages. Compact versions: - pneumatic narrow differential switch - electric narrow differential switch. Safety check valve Sour service (NACE). High/low alarm. Single pump control. Day storage tanks. Corrosive processes. Process vessels. Boiler low water cut off. Interface level. Dirty process high level w/offset. Installations in hazardous area. Shut-off valve Switch actuation level Drain valve Pressure vessel Typical piping arrangement AGENCY APPROVALS Agency ATEX (zone 0) FM/CSAx II 1/2G EEx d II C T6, explosion proof II 1G EEx ia II C T6, intrinsically safe Explosion proof x Consult factory for proper partnumbers

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SWITCH MECHANISMS All TUFFY® are available with a selection of switch modules that vary in switch rating (Amp) and max process temperature allowance. The max temperature is dependent upon the housing material selected. Consult table below, before selecting the proper module in the order number structure on pages 3, 5, 7 or 9. Electric switch rating V AC V DC Contacts and type 120 240 24 120 SPDT with silver contacts 10.0 10.0 6.0 0.6 DPDT with silver contacts 10.0 10.0 6.0 0.6 SPDT with gold plated contacts 0.1 0.1 DPDT with gold plated contacts 0.1 0.1 HS SPDT with silver contacts 1.0 1.0...

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PRINCIPLE OF OPERATION Float Magnet The Tuffy achieves switching action through the use of a magnetic switch mechanism and a magnet attached to the ﬂoat assembly. Separating the two magnets is a non-magnetic pressure barrier. As the liquid level changes, the ﬂoat, and therefore the ﬂoat magnet, moves. The ﬂoat and switch magnets repel each other causing movement of the switch mechanism, tripping the switch and making or breaking an electrical circuit. Non-magnetic Float holder (pressure boundary) Switch Magnet SELECTION DATA Narrow Differential: Wide Differential: Interface Service: Single...

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T31 AND T35: THREADED NARROW DIFFERENTIAL DIMENSIONS in mm (inches) T31: 220 (8.66) T35: 200 (7.86) ORDER CODE Process connection: 2" NPT Max temperature: switch selection dependant – see table on page 2 Max pressure: 50 bar abs. (720 psi) / 103 bar abs. (1500 psi) Level Differential: 13 mm (0,5") T 3 1 - 0 0 2 N T 3 5 - 0 0 2 N Threaded Tuffy with 316/316L (1.4401/1.4404) ﬂoat - min. S.G. 0,4 / max 50 bar abs. ( 720 psi) Threaded Tuffy with 316/316L (1.4401/1.4404) ﬂoat - min. S.G. 0,6 / max 103 bar abs. (1500 psi) DESIGN CODE (All wetted parts in 316/316L (1.4401/1.4404)) B Standard...

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ORDER CODE Process connection: up to 600 lbs ANSI / PN 63 anges Max temperature: switch selection dependant – see table on page 2 Max pressure: 50 bar abs. (720 psi) / 103 bar abs (1500 psi), or limited to ange rating. Level Differential: 13 mm (0.5") T 3 1 - 0 0 T 3 3 - 0 0 T 3 5 - 0 0 Flanged Tuffy with 316/316L (1.4401/1.4404) oat - min. S.G. 0,4 / max 50 bar abs. (720 psi) Flanged Tuffy with Hastelloy C (2.4819) oat - min. S.G. 0,65 / max 50 bar abs. (720 psi) Flanged Tuffy with 316/316L (1.4401/1.4404) oat - min. S.G. 0,6 / max 103 bar abs. (1500 psi) PROCESS CONNECTION – ANSI Flanges...

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T32: FLANGED HIGH PRESSURE NARROW DIFFERENTIAL DIMENSIONS in mm (inches) 211 (8.29) ORDER CODE Process connection: up to 900 lbs ANSI / PN 160 ﬂanges Max temperature: switch selection dependant – see table on page 2 Max pressure: 150 bar abs. (2160 psi) Level differential: 13 mm (0,5") T 3 2 - 0 0 Flanged Tuffy with 316/316L (1.4401/1.4404) ﬂoat - min. S.G. 0,6 / max 150 bar abs. (2160 psi) PROCESS CONNECTION – ANSI Flanges 3 D 3" 900 lbs RF ANSI Flange 4 D 4" 900 lbs RF ANSI Flange PROCESS CONNECTION – EN/DIN Flanges A 4 DN 80, PN 100 EN 1092-1 Type B2 A 5 DN 80, PN 160 DIN 2527 Form E...

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T3C: ADJUSTABLE WIDE DIFFERENTIAL DIMENSIONS in mm (inches) Stem length (code 4): 327 (12.86) Stem length (code 8): 422 (16.61) Stem length (code C): 543 (21.36) Stem length (code 4): 346 (13.62) Stem length (code 8): 471 (18.54) Stem length (code C): 629 (24.76) Stem le Dimension "A Stem le ngth (code 4): " Stem le ngth (code 8): 95 (3.75) ngth (c ode C): 190 (7.50) 311 (12 .25) ORDER CODE Process connection: up to 300 lbs ANSI / PN 40 ﬂanges Max temperature: switch selection dependant – see table on page 2 Max pressure: 50 bar abs. (720 psi) Level Differential: adjustable from 35 mm...

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T3B: INTERFACE DIMENSIONS in mm (inches) 448 (17.62) ORDER CODE Process connection: up to 300 lbs ANSI / PN 40 ﬂanges Max temperature: switch selection dependant – see table on page 2 Max pressure: 50 bar abs. (720 psi) Min S.G. of lower liquid: 0,81 kg/dm3 Min S.G. difference between both liquids: 0,1 kg/dm3 Level differential: 44 mm (1.72") T 3 B Interface Tuffy with 316/316L (1.4401/1.4404) ﬂoat - max 50 bar abs. (720 psi) SPECIFIC GRAVITY OF LOWER LIQUID (consult factory for S.G. higher than 1.0 kg/dm3) 0,81 0,82 A B Speciﬁc Gravity Code Speciﬁc Gravity Code PROCESS CONNECTION – ANSI...

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TUFFY® II 12Pages

Catalog excerpts

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TUFFY® II
12Pages