Pressure switch


Catalog excerpts

Pressure switch - 1

Designed for volume manufacture, theVM2/4 switch is ideally suited to meet therequirements of OEM manufacturers of: Enclosure options Weatherproof IP66/NEMA 4X Wellhead control safety shutdownsystems Weatherproof IP66/flameproof EEx IIC 2 GD T6 (Tamb ֖60 Deg C to + 65 Deg C) Water or gas deluge fire protectionsystems T5 (Tamb 60 Deg C to + 80 Deg C) Fuel and lubrication systems, as foundon gas turbines, compressors and other rotating machinery Wetted parts options Valve Actuators Nickel alloy (Monel) diaphragm and process connectionfor NACE MR-01-75 ֖ all welded construction. The choice of models available ensuresthe VM Series is suitable for use in: Standard electrical ratings general purpose applications Refer to Table 6 aggressive outdoor atmospheres, eg:marine or coastal environments Process connection hazardous areas Rc 1/4 (1/4 Bsp tr int) or 1/4 ԔNPTF (other sizes via adaptors only) Unit weight 1.5kg/3.3lbs approx Set point Repeatability > +/- 1% of adjustable range Delta Controls range of reliable pressureand temperature measurementinstruments can be customised to meet individual requirements. For technicaladvice or to discuss your application,please contact us on +44 (0) 20 8939 3500 Ambient temperature range -40 to +80 deg C (-40 to +176F) intermittently downto -60 deg C (-76 degF) - ATEX (VM2) -40 to +85 deg C (-40 to +185F) for theweatherproof version (VM2) -25 to +60 deg C (-13 to +140F) Limited by materials used in sensingelement (VM4 only) > TDS. V M2/4.03-05. ISSUE B

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Pressure switch - 2

When ordering, please state the relevant product code for each instrument, made up as follows: Enclosure. See Table 1 Model. See Table 2 Electrical connection. See Table 3 Options. See Table 8 Material of wetted parts. See Table 4 Process connection. See Table 7 Range. See Table 5 Switching options. See Table 6 >

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Pressure switch - 3

Code Stainless Steel Weatherproof IP66/NEMA 4X For general use or aggressive atmospheres e.g marineA Stainless Steel Weatherproof/Flameproof ֖ IP66/NEMA 4XATEX /EEx d IIC T6 2GD For use in aggressive atmospheres e.g. marine.R > Code Fixed Switching Differential For applications up to 100 bar / 1500 psiOver-range up to 155 bar / 2250 psiRefer to Table 5VM2 Fixed Switching Differential For applications up to 700 bar / 10,000 psiOver-range up to 1000 bar / 15,000 psiRefer to Table 5VM4 > For reduced risk against leakage under extreme or unusual conditions, thediaphragm is welded directly to...

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Pressure switch - 5

IEC947-5-1 / EN 60947-5-1 RATING UL/CSARATING Designation &Utilisation CategoryRated operational current Ie (A)at rated operational voltage VA ratin g Code UeUiUimp MakeBreakContact 5 Amps @ 110/250V AC and2 Amps @ 30V DC General Purpose PrecisionAC14 D300DC13 R3000.6/0.3A @ 120/240V AC0.22/0.1A @ 125/250V DC250V0.8kV432287228SPDTDPDT 0203 1 Amp @ 125V AC and0.1 Amp @ 30V DC Gold Alloy contacts See NoteAC14 E1500.3A @ 120VAC125V500V21636SPDTDPDT 0405 NOTE: For low energy circuits e.g. 30V and up to 100mA, we recommend using gold alloy contact switchesUi = rated insulation voltage: Uimp =...

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Pressure switch - 6

Combinations available, applyfor details. Code Tropicalisation High humidity atmospheres01 Tag Stainless steel tied to enclosure30 > Low voltage Directive (LVD) 73/23/EC amended by 93/68/EEC. Switchproducts with enclosure code Rђ are also covered by the Explosive A tmospheres Directive ATEX-94/9/EC.The following directives do not apply to switch products manufacturedby Delta Controls:Electromagnetic Compatibility EMC 89/336/EEC.Machinery Safety Directive MSD ֖ 89/392/EEC.In the interests of development and improvement, Delta Controlsreserves the right to alter the specification of its...

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