Technical Datasheet Magnetic Horizontal Level Switches Weatherproof Aluminium-bronze and Stainless Steel Wetside models Key Features  Operates in almost every liquid, even at high pressure or temperature Tough, rugged design for long life in aggressive environments Magnetically coupled No glands or linkages that could cause leaks Series Overview Product applications This proven design with over 100 year of experience, allows for fit and forget of the instrument. Pump control duty Interface duty Dirty Liquids Other products Other products we can offer :  Vertical level switches  003 Gap Sensor  Horizontal Chamber mounted 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 729140 Page 1 of 18 Model: Aluminium-bronze & Stainless steel When the process liquid level is below the switch point, contacts B-B are made and contacts A-A are open, but if the liquid level is above the switch point, contacts A-A are made and contacts B-B are open. Magnetic Horizontal Level Switches The Mobrey magnetic horizontal float switch is ideal for high and low liquid level alarm, and pump control duties. It is designed to open or close a circuit as a changing liquid level w

How to order Instrument 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. S Base Model Table 1 Flange (head) Table 2 Switch Mechanism Table 3 Model: Aluminium-bronze & Stainless steel Magnetic Horizontal Level Switches

Horizontal float switch General purpose, aluminium bronze wetside, Mobrey 'A' flange, 261 psi (18 bar) General purpose, stainless steel wetside, Mobrey 'A' flange, 490 psi (33.8 bar) General purpose, stainless steel wetside, Mobrey 'A' flange, 490 psi (33.8 bar) General purpose, stainless steel wetside, 3 in. ASME B16.5 Class 150 RF flange General purpose, stainless steel wetside, 4 in. ASME B16.5 Class 150 RF flange General purpose, stainless steel wetside, 3 in. ASME B16.5 Class 300 RF flange General purpose, stainless steel wetside, 4 in. ASME B16.5 Class 300 RF flange General purpose, stainless...

Electrical: 2 independent Single Pole Single Throw (SPST) contact sets As type D but with gold plated contacts Electrical: 2 independent circuits of Double Pole Double Throw (DPDT) contact sets As type D6 but with gold plated contacts As type D6 but with gold plated contacts and hermetically sealed moving parts As type H6 but approved for Zone 2 areas Pneumatic: air pilot valve on/off for switching air circuits Pneumatic: air pilot valve for continuous modulating of air controlled circuits Switch Enclosure Aluminium alloy Switch Type Model: Aluminium-bronze & Stainless steel Aluminium bronze...

Horizontal variable differential for pump control/alarm, 316 SST, min. SG 0.72, 500 psi (34.5 bar) Horizontal variable differential for pump control/alarm, 316 SST, min. SG 0.85, 500 psi (34.5 bar) Vertical pump control or alarm, 316 SST, rod length 1524mm, 435 psi (30 bar) Vertical pump control or alarm, 316 SST, rod length 3048mm, 435 psi (30 bar) Vertical pump control or alarm, 316 SST, rod length 4570mm, 435 psi (30 bar) Cranked arm, horizontal, 316 SST, dimensions to be specified, 500 psi (34.5 bar) Cranked arm, vertical, 316 SST, dimensions to be specified, 500 psi (34.5 bar) Shrouded for...

Switch Characteristics Table 6 Float Switch Specification – Aluminium bronze wetside - General Application Electric models Enclosure & wetside Aluminium Bronze to BS 1400 – AB1 maximum iron content 2.5% Short (4 contacts) e.g. S01DB, Aluminium to BS 1490 – grade LM24 Long (6 contacts) e.g. S01D6B, Brass to BS 1400 – DCB3 Maximum Process Temperature 410°F (210°C) if shrouded float F93 used, maximum 356°F (180°C) Gasket Material Non-asbestos sheet material gaskets to BS 7531 Grade X, which has upper temperature limits of 482°F (250°C) for Gas, vapor and Steam and 824°F (440°C) for liquids Air pilot...

Electric Characteristics Table 8 Electrical switch mechanism specification Electrical switch mechanism Type D  For alternative make and break circuits  Function: 2 independent Single Pole Single Throw contacts sets and “snap-action” May be wired S.P.C.O. on site Type D6  For switching two independent circuits  Function Double Pole change over (2 independent circuits) and “snap-action” Type P and P6 As type D and D6 but with Gold Plated Contacts for switching low power (e.g. Intrinsically Safe) electrical circuits Type H6  For use in corrosive area and/or low temperature applications...

Mobrey ‘A’ flange: 4 off Ø0.55 (Ø14) holes equi-spaced on 3.62 (92) PCD Note: Dimensions are in inches (mm). Model: Aluminium-bronze & Stainless steel Magnetic Horizontal Level Switches General purpose float switches (aluminium bronze wetside) Switch mechanism type DB and PB Note: See Table 9 for dimensions X, Y and Z. Switch mechanism type D6B and P6B Note: See Table 9 for dimensions X, Y and Z. Note: Dimensions are in inches (mm).

General purpose float switches (stainless steel wetside) Note: Dimensions are in inches (mm). Note: See Table 9 for dimensions X, Y and Z. Float Material 1. Refer to pages 12, 13, 14 and 15 for technical float details and length options. See “Nozzle and stud lengths” on page 11 for stud lengths. Model: Aluminium-bronze & Stainless steel Float Type Magnetic Horizontal Level Switches Table 9. Float dimensions X, Y, and Z – general purpose float sw

Nozzle and stud lengths Table 10. Maximum Length in mm (Dimensions L) L Minimum stud projection (See Table 11) Table 11. Minimum stud projection (in mm) Rating Companion Flanges Model: Aluminium-bronze & Stainless steel Magnetic Horizontal Level Switches Figure 1. Companion Flanges Mobrey ‘A’ Flanged Switches Note: Dimensions are in inches (mm).