Related Manuals for AMOT B
Summary of Contents for AMOT B
- Page 1 Model B Valve – Thermostatic valve for diverting and mixing applications Installation, Operation and Maintenance Manual Doc No: OMMB00010 Revision: 7 – Mar 2014...
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Page 2: Table Of Contents
Contents Section 1 Table of Contents Section 1 Table of Contents ..............2 Section 2 Introduction ............... 3 Scope ..................3 Safety ..................3 Product support ................3 Typographical conventions ............4 Section 3 Description ................ 5 Overview ................... 5 3.1.1 Manual override .............. -
Page 3: Introduction
Section 2 Introduction 2.1 Scope This manual details the installation, operation and maintenance of the AMOT Model B Valve range. 2.2 Safety Certain operations within this manual are potentially hazardous and could cause injury to personnel or damage to equipment if the instructions are not carried exactly as described. -
Page 4: Typographical Conventions
Introduction 2.4 Typographical conventions Footnotes Where space in the text or figures to place a note is restricted, a footnote is used. They consist of two parts: A mark indicating which part of the text or figure is affected by the note. -
Page 5: Description
3.1.1 Manual override As an option, Model B Valves can be fitted with a manual override, which allows the operator to drive the unit towards the maximum cooling position. On the larger sizes with multiple elements, each has its own override. -
Page 6: Identification Of Model Number
Flanged 'F' configuration (2" only) Screwed high pressure (1 1/2" and 2" only) Manual override (2" to 8 only") Special ST.ST with Manual Override (Refer OMM00144) Special ST.ST B Valve (Refer OMM00144) Valve Material Aluminium (not 8 and 33) Bronze (not 33) - Page 7 Customer Special Requirements Standard Product Customer special code assigned * AMOT reserves the right to substitute a ductile iron product in place of cast iron to meet customer delivery requirements. Table 1. – Model Identification Other Flange connections are available. Contact AMOT for details.
- Page 8 Use in EU Rated Range Control Max Temp Max Temp Temp Continuous Short Period Code Crack Open Full Open °C °F °C °F °C °F °C °F °C °F 54.5 76.2 253.5 Table 2. – Element Temperatures Revision: 7 – Mar 2014 OMMB00010...
- Page 9 5566X reduce stroke with Viton seals 1096X with Neoprene seals 1096P with Neoprene seals 2433X manual override with Viton seals Table 3. – Element/Seal Types Other Elements and Seals are available. Contact AMOT for details. Doc No: OMMB00010 Revision: 7 – Mar 2014...
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Page 10: Use Within The European Union (Eu)
Sound Engineering Practice (SEP) category. In this category units are not required to be CE marked. Some sizes of the Model B Valve are also rated to SEP for Group 1 fluids. This is indicated on the nameplate if applicable. -
Page 11: Hazardous Area Directive (A.t.e.x.)
The Model B Valve has been assessed for use in places designated as containing hazardous Gas; they shall not be used in places designated as containing hazardous dust. - Page 12 Use in the EU Area containing ATEX service information Area containing name and address of manufacturer or authorised representative established within the EU Figure 4-2 The ATEX service information area contains the following information. Ex Symbol – the EC Mark for hazardous area application Equipment designation –...
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Page 13: Machinery Directive
Machinery. The Model B Valve must not be put into service until the Final Machinery into which it is to be incorporated has been declared in conformity with the relevant provisions of EU Machinery Directive 2006/42/EC. -
Page 14: Installation
5.1 Installing the valve 5.1.1 Before starting installation 1. Upon receipt, the valve should be checked for damage sustained in shipping. All AMOT valves have nameplates attached, which are stamped with the valve model number and serial number. 2. Understand the intended use of the valve as described in Section 3. -
Page 15: Start Up
Installation flange connections are correctly aligned to avoid stressing the valve body. For the main flanged ports Bolting and Gaskets should comply with the relevant standard. All relevant local regulations must also be observed. 5.1.3 Start up Upon installation and on start up of the system, all parts of the circuit should be closely monitored to ensure correct performance. -
Page 16: Operation
Operation Section 6 Operation 6.1 Operation The type B valve is completely automatic in operation, and needs no power supply The temperature control power is created by the expansion of a wax/copper mixture which is highly sensitive to temperature changes. -
Page 17: Diverting Applications (Controls Outlet Temp From Load Source)
6.1.1 Diverting applications (controls outlet temp from load source) In diverting applications temperature is sensed at port A, which remains open to port B (bypass) until the fluid temperature reaches a point 3- 6°C (5-10°F) below the nominal setting, when the valve will start to move, progressively closing port B and opening port C (the cooler connection). -
Page 18: Manual Override (If Fitted)
Operation 6.1.3 Manual override (if fitted) CAUTION Please note that manual override is for emergency use only and if operated incorrectly then potential damage to the valve can occur. 1. If emergency cooling is required then firstly loosen locknut. 2. Turn adjusting nut clockwise until indicator pin has reached ‘manual’... -
Page 19: Maintenance
7.1 Dismantling the valve Properly applied and installed AMOT thermostatic valves require minimal maintenance. Inspection at 2 or 3 year intervals is adequate to detect normal wear. In the 8B valve the element assembly may be removed without removing the valve from the connecting piping. -
Page 20: Assembling The Valve
Remove and discard housing gasket (Item 9) ensuring any traces of the gasket are removed from the housing mating faces. Please note that in some sizes of Model B Valves ‘O’ rings are used instead of gaskets. If removing element from BO valve (non manual override) simply pull the element from the upper housing. -
Page 21: User Maintenance Parts
(Item 38). Ensure washer (Item 32) is free. 10. Position gasket and lower housing over upper housing, secure with nuts and washers (Items 12 & 11). Please note that in some B valves ‘O’ rings are used in place of gaskets. For nut torque settings see table 1. - Page 22 46342X806 Table 7 – Seal kit part numbers Please note that 4” and 5” B valves as of 2010 and 6” and 8” B Valves as of 2011 now use ‘O’ rings to seal the upper and lower housing. The seal kits for these valves contain the original type gasket and the ‘O’...
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Page 23: Trouble Shooting
Contact Section 8 Trouble shooting In the event that the cooling system does not operate close to the desired temperature, the following guide may help to identify or locate the problem. 8.1 System temperature too cold 1. Insufficient heat rejected to coolant to maintain temperature. 2. -
Page 24: Technical Specification
(all weights in Kg). Type Bronze Cast or Ductile Iron Steel(inc.SS) Aluminium 1 ½” 2” BO/BH/BG 2” BF 2” BC/BR 2 ½” 3” 4” 5” 6” 8” Table 9 – Model B Valve weights Revision: 7 – Mar 2014 OMMB00010... -
Page 25: Storage
Contact 9.1.4 Storage Protect stored valves against ingress of dirt and airborne contaminates, and avoid frost or direct sunlight. Do not raise the temperature above the sensing element rating. Storage is permitted down to -40°C (-40°F) for valves containing Nitrile, EPDM, Neoprene ‘O’... - Page 26 Tel: +44 (0) 1284 762222 Fax: +1 (713) 559 9419 Fax: +44 (0) 1284 760256 Email: sales@amotusa.com Email: info@amot.com AMOT Controls GmbH Rondenbarg 25 22525 Hamburg Germany Asia and Australasia Tel: +49 (0) 40 8537 1298 AMOT China Tel: +49 (0) 40 8537 1331 Rm 4102 –...
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