Volume Series
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Technical Datasheet Volume Series Pressure Switch Models: VM2 & VM4 Key Features • Compact and rugged design • SPDT & DPDT Switch Outputs • Stainless steel enclosure as standard • Weatherproof and Flameproof execution • Variety of wetted parts including NACE compatible option • Field adjustable set point Designed for volume manufacture, the VM2/4 switch is ideally suited to meet the requirements of OEM manufacturers of: Wellhead control safety shutdown systems Water or gas deluge fire protection systems Fuel and lubrication systems, as found on gas turbines, compressors and other rotating machinery Valve actuators Series Overview The VM pressure switch offers a compact and cost effective solution for any application where reduced space and resistance to aggressive atmospheres is necessary . • Performance is assured by repackaging Delta Mobrey’s well proven sensor technologies in a new, simple, one piece enclosure • Safety is maintained by a vent that prevents the enclosure becoming pressurised in the event of a sensor being damaged • Cost is minimised through the selection of common standard options although, as with all Delta Mobrey products, a variety of optional extras are available We can also provide similar products: • CS Compact Pressure Switch P0 Sentry Pressure Switch The choice of models available ensures the VM Series is suitable for use in: General purpose applications Aggressive outdoor atmospheres, eg: marine or coastal environments Hazardous areas How can we help you? Delta Mobrey offers fast, efficient and knowledgeable support when and where you need it. Please visit our website at www.delta-mobrey.com to find your local support centre or call us on: +44 (0) 1252 729 140 • Ranges available between 0.25bar/4psi and 700bar/10,000psi Product applications • All welded construction for process connection and diaphragm – reduced

How to order Switches can be configured by selecting codes representing the desired features from the tables that follow. The chart below, describes how the model code is built up. For assistance in configuring a switch that best suits your needs, please contact your local sales office. Electrical Entry Table 3 Material of Wetted Part Table 4 Process Connection Table 7 Options & Treatments Table 8 Special Engineering Table 9 Technical Specification Set point repeatability: Storage Temperature: Ambient Temperature: Maximum Process Temperature: At the process connection, the component parts...

Double marking ATEX and UKEx on the same product nameplate; EAC Ex marking on request. Code WEATHERPROOF ENCLOSURE Aggressive Atmospheres Investment cast enclosure in austenitic stainless steel, with ingress protection IP66, NEMA type 4X FLAMEPROOF ENCLOSURE (1) Approved for use in a Zone 1 & Zone 2 hazardous locations Ex db IIC T6/T5 Gb, Ex tb IIIC T75/T90°C Db IP66 The temperature class is related to the ambient temperature range see Approvals for more information Aggressive Atmospheres Investment cast enclosure in austenitic stainless steel, with ingress protection IP66, NEMA type 4X...

Setting Ranges TABLE 5 Figures given in the tables are typical for the maximum mid-range settings and are for guidance only. Value will vary across the range i.e. lower at or near the bottom of the range and higher at or near the top of the range. Table 5A RANGE CODE Table 5B RANGE CODE SWITCHING DIFFERENTIAL mbar SWITCHING DIFFERENTIAL mbar

Switch Options IEC947-5-1 / EN 60947-5-1 RATING UL/CSA RATING Designation & Rated operational current (Ie) Utilisation At rated operational voltage (Ue) Category 5 Amps @ 110/250V AC and 2 Amps @ 30V DC General Purpose Precision 1 Amp @ 125V AC and 0.1 Amp @ 30V DC Gold Alloy contacts - See Note SPDT DPDT SPDT DPDT NOTE: For low energy circuits e.g. 30V and up to 100mA, we recommend using gold alloy contact switches. Ui = rated insulation voltage: Uimp = rated impulse to withstand voltage across contacts. For other switch options please consult Delta Mobrey Limited Important Note: In case...

Approvals EUROPEAN DIRECTIVE Low Voltage Directive (LVD) 2014/35/EU Compliant to LVD Restriction of hazardous substances (RoHS 2) 2011/65/EU Compliant to RoHS Pressure Equipment Directive (PED) 2014/68/EU Compliant to PED as pressure accessory ATEX Directive 2014/34/EU FLAMEPROOF Certificate No. ITS03ATEX11510X ◼ UK REGULATIONS Electrical Equipment (Safety) Regulations 2016 Conform to UK SI 2016 No 1101 regulation Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment Regulations 2012 Conform to UK SI 2012 No. 3032 Pressure Equipment (Safety)...

In the interest of development and improvement Delta Mobrey Ltd, reserves the right to amend, without notice, details contained in this publication. No legal liability will be accepted by Delta Mobrey Ltd for any errors, omissions or amendments. Delta Mobrey Limited Hudson House, Albany Park Camberley Surrey, GU16 7PL, UK. T+44 (0)12 5272 9140 F+44 (0)12 5272 9168 E sales@delta-mobrey.com W www.delta-mobrey.com