DMN AL Series Operation Instructions Maintenance Safety Instructions

DMN AL Series Operation Instructions Maintenance Safety Instructions

Explosion-proof rotary valves
Table of Contents

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(according to EU Directive 2014/34/EU, Annex X)
Client
: Unitec UK Ltd
Order number : 19838 - 26177
Description
:Drop through valve
Serial number : RVNL153680
The manufacturer and technical authorised representative DMN Machinefabriek Noordwykerhout B.V.
herewith declares that the product described above is in compliance with the basic requirements of
Machine Directive 2006/42/EC with reference to the technical related documents corresponding Appendix
VII, Part B of the Directive and conforms to the following fundamental stipulations of this directive (Addendum
1): Nbr. 1.1.2; 1.1.3; 1.1.5; 1.1.6; 1.2.2; 1.2.6; 1.3.1 - 1.3.4; 1.3.6-1.3.8.2; 1.3.9; 1.4.1; 1.4.2. 1; 1.4.2.2; 1.5.1-
1.5.4; 1.5.6-1.5.9; 1.5.13; 1.6.1-1.6.5; 1.7.1; 1.7.1.1; 1.7.1.2; 1.7.2; 1.7.3; 1.7.4.1- 1.7.4.3; 2.1.1; 2.1.2.
Pressure Equipment Directive 2014/68/EU. The DMN-WESTINGHOUSE rotary valves and/or diverter
valves do not fall under the scope of this directive (see Article 1 – 2f) as they are classified no higher than
category I under article 13 of this directive.
ATEX Directive 2014/34/EU.
1. The DMN-WESTINGHOUSE Drop through valve is certified according to
Type Examination CertificateBVS03 ATEX H051 X.
D St1.
II1D
II3D
Applicable standards:
EN 1127-1:2011, EN 13463-1:2009, EN 13463-5:2011, EN 14460:2006
2. DMN Machinefabriek Noordwykerhout B.V. has a quality notification according to Annex IV
through LCIE 03 ATEX Q 8082
The notified body in charge of quality surveillance is
LCIE (0081)
33, Avenue du Général Leclerc
92260 Fontenay aux Roses
France
Check the data on the type plate and read the manual before installing the valve.
The above mentioned machine in the supplied version is designed to be incorporated into an installation or
mounted on one or more other machines. Operation is prohibited until it has been confirmed that the complete
installation or composition of machines of which the component is part of has been installed in accordance with
the Directive 2006/42/EC or any other applicable directives or national regulations. The operation and safety
instructions in the operating and maintenance manual must be complied with.
In response to a reasoned request by the national authorities relevant information on the partly completed
machinery will be submitted for inspection. Inspection of the information shall be without prejudice to the
intellectual property rights of the manufacturer of the partly completed machinery.
DMN Machinefabriek
Noordwykerhout B.V.
3, Gieterij
2211 WC Noordwijkerhout
The Netherlands
www.dmnwestinghouse.com
Print date : 15-12-2017
Declaration of Conformity
Order number: 2177176
Type
(Internal)
(External)
Declaration of conformity_2177176_1_Sn_153680
: AL150 2
H.E.J.H. Meima
Quality Assurance Manager
Page 1

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Summary of Contents for DMN AL Series

  • Page 1 (External) Applicable standards: EN 1127-1:2011, EN 13463-1:2009, EN 13463-5:2011, EN 14460:2006 2. DMN Machinefabriek Noordwykerhout B.V. has a quality notification according to Annex IV through LCIE 03 ATEX Q 8082 The notified body in charge of quality surveillance is LCIE (0081) 33, Avenue du Général Leclerc...
  • Page 2 : Drop through valve Type : AL150 2 Serial number : RVNL153680 The manufacturer and technical authorised representative DMN Machinefabriek Noordwykerhout B.V. herewith declares that Packing cord Teadit 2006 FDA is in compliance with the basic requirements of FDA 21 CFR 177.1550 materials are conform to the Code of Federal Regulations of the Food and Drug Administration (FDA).
  • Page 3 Operation instructions Explosion-Proof Rotary valves.  Operation instructions Standard Rotary valves. (Appendix) and then store carefully for future use ! Type : AL150 2 Serial no. : RVNL153680 to RVNL 153680 DMN-WESTINGHOUSE order no. :2177176 Year of construction : 2017...
  • Page 4 3 GD External Rotary valve Zone 2-22 II 1D/ 3 GD c 1D Internal Rotary valve Zone 20-21-22 - External Rotary valve No Zone II 1D/ - c DMN Machinefabriek Noordwykerhout B.V. 3, Gieterij 2211 WC Noordwijkerhout The Netherlands www.dmnwestinghouse.com Code: RV-Ex.pro-E.B.01.D 05-2016...
  • Page 5: General

    No liability is accepted for damage and malfunction caused by non-observation of these operation instructions, modification of the rotary valve without written approval of DMN Machinefabriek Noordwykerhout B.V. (hereinafter called DMN). DMN does not accept any liability for damage or accidents resulting from improper use. Copyright Copyright ©...
  • Page 6: Table Of Contents

    DMN-WESTINGHOUSE Explosion-Proof Rotary Valves Contents Page 1. Safety instructions Rotary valves 1.1 General safety instructions 1.2 Symbols 1.3 Responsibilities of management and maintenance personnel 1.4 Applying the safety instructions when installing a valve 1.5 Applying the safety instructions when the valve is in operation 1.6 Applying the safety instructions during maintenance and repair...
  • Page 7: Safety Instructions Rotary Valves

    Modifications and alterations to the product are not permitted other than by DMN trained personnel, to ensure safe operation. 1.2. Symbols Hazard.
  • Page 8: Applying The Safety Instructions When Installing A Valve

    Applying the safety instructions when the valve is in operation Only operate the valve when it is fitted with the protective safety parts supplied by DMN. These are: mechanical protection e.g. chain guard and end cover plates; electro-mechanical protection e.g. safety switches (if fitted).
  • Page 9: Safety Instructions For Use In Potentially Explosive Atmosphere

    The Rotary valves are intended for industrial systems and may only be used in accordance with the information provided in DMN technical documentation and the information listed on the nameplate. They comply with the applicable standards and regulations and meet the requirements of directive 2014/34/EU.
  • Page 10: Explosion-Proof Rotary Valves

    DMN-WESTINGHOUSE Explosion-Proof Rotary Valves Explosion-Proof Rotary valves 2.1. ATEX approved Autonomous protective system. The following table shows the valve types that can be used as autonomous protective system: Executions Dust- Max. Easy Type Size Standard Dairy Dairy MZC class Clearance...
  • Page 11 DMN-WESTINGHOUSE Explosion-Proof Rotary Valves The Rotary valves are explosion proof tested according to VDI 2263 Part 3. Certified to have a pressure shock resistance of 10 bar and flame proof ness. Excluded are: Type BL enlarged inlet Aluminium castings Rotor executions with Plastic (Teflon, Polyurethane, etc), or scraper...
  • Page 12 This can be done in the first instance by using blades that are chamfered on 3 sides. Examples: PVC powder tends to smear, Sugar glazes etc. If in doubt please contact DMN. If the properties of the product to be handled are not known then the surface temperature must be checked several times after starting the valve to see if there is a temperature increase.
  • Page 13: Construction

    DMN-WESTINGHOUSE Explosion-Proof Rotary Valves 2.2. Type designation Example Rotary valve Material of Type Size Execution construction Type Size Material of Cast Iron construction Stainless steel Cast Iron-Complete Nickel plated Cast Iron- Internals Chrome plated Cast Iron-Bore Chrome plated 4TCO Cast Iron-Tungsten coated...
  • Page 14: Installing The Rotary Valve In A Potentially Explosive Atmosphere

    The sensor and control unit are not part of the standard supply of DMN. Ensure that a sensor and control unit are installed in the system. The DMN-WESTINGHOUSE rotary valves are pressure shock resistant up to 10 bar. If an explosion could occur above 10 bar, then the user of this equipment must ensure adequate safety measures are installed.
  • Page 15 DMN-WESTINGHOUSE Explosion-Proof Rotary Valves Before installing the rotary valve in the system check the clearances between rotor and Body/Cover. (See 5.1) When installing the valve make sure it is not unevenly loaded by S T O P external forces or subject to vibrations.
  • Page 16 Explosion-Proof Rotary Valves 3.1. Power and rotor speed rotary valves The following tables show the power and rotor speed for each type and size of DMN- WESTINGHOUSE valve. For good functioning of the valve the rotor tip speed must not exceed 0.66m/sec.The standard rotor speeds are usually between 15-25 RPM depending on size of valve.
  • Page 17: Drive

    DMN-WESTINGHOUSE Explosion-Proof Rotary Valves 3.2. Drive 1D Internal Rotary valve Zone 20-21-22 II 1D/ 2 GD c 2 GD External Rotary valve Zone 1-21 1D Internal Rotary valve Zone 20-21-22 3 GD External Rotary valve Zone 2-22 II 1D/ 3 GD c...
  • Page 18 DMN-WESTINGHOUSE Explosion-Proof Rotary Valves Does the following information on the nameplate of the gear unit corresponds to the potentially explosive on-site atmosphere. Pay specific attention to:  Unit group  Explosion-proof category  Dust- Gas area  Temperature class  Maximum surface temperature...
  • Page 19: Accessories

    DMN-WESTINGHOUSE Explosion-Proof Rotary Valves 3.4. Accessories ( If fitted ) 1D Internal Rotary valve Zone 20-21-22 2 GD External Rotary valve Zone 1-21 II 1D/ 2 GD c 1D Internal Rotary valve Zone 20-21-22 3 GD External Rotary valve Zone 2-22...
  • Page 20 DMN-WESTINGHOUSE Explosion-Proof Rotary Valves Pressure regulator Zero speed indication Drive side option 1. Drive side option 2. Non drive side. Code: RV-Ex.pro-E.B.01.D 05-2016...
  • Page 21: Clearances Settings

    4.1. Clearance settings DMN-WESTINGHOUSE valves have been manufactured with great care. To reduce leakage, internal running clearances are kept extremely small during manufacture and assembly of the valve. Set clearance according to the attached Final inspection report or nameplate.
  • Page 22: Inspection And Maintenance

    DMN-WESTINGHOUSE Explosion-Proof Rotary Valves Inspection and Maintenance The interval between overhauls will vary according to the product being handled and should be based on total operating time. To a large degree the rate of wear for a particular application will be ascertained by practical experience.
  • Page 23: After An Explosion

    DMN-WESTINGHOUSE Explosion-Proof Rotary Valves 5.2. After an explosion After an explosion the valve must be removed from the installation and completely cleaned and dismantled. Replace damaged parts and re-assemble the valve. Check product temperature and set the clearance according to the attached Final inspection report.
  • Page 24 AL-AXL-AML Size : 100-150-175-200-250-300-350-400-450-500 BL-BXL-BXXL  Standard  HT execution 250°C  HT execution 600°C OS-GOS Size: 400-450-500  Standard Size: 150-175-200-250-300-350  Standard Type : AL150 2 Serial no. : RVNL153680 to RVNL 153680 DMN-WESTINGHOUSE order no. : 2177176...
  • Page 25 DMN-WESTINGHOUSE AL-BL Rotary Valves General For the promotion of the life span and correct functioning of DMN WESTINGHOUSE valves we advise you to respect these operation instructions and to carry out maintenance work accordingly. Should there be any problems, please contact our technical sales department.
  • Page 26: General Assembly And Parts List Al-Bl Series

    DMN-WESTINGHOUSE AL-BL Rotary Valves Contents Page 1. Safety instructions Rotary valves 1.1 General safety instructions 1.2 Symbols 1.3 Responsibilities of management and maintenance personnel 1.4 Applying the safety instructions when installing a valve 1.5 Applying the safety instructions when the valve is in operation 1.6 Applying the safety instructions during maintenance and repair...
  • Page 27 DMN-WESTINGHOUSE AL-BL Rotary Valves Contents Page 3.4 OS-GOS Standard execution 3.4.1 General 3.4.2 Technical specifications 3.4.3 Construction 3.4.3.1 General assembly and parts list OS-GOS 3.4.3.2 Shaft sealing executions see 3.1.3.2 3.4.4 Dismantling, assembling and adjusting instructions Standard execution see 3.1.4 3.5 GL...
  • Page 28 Modifications and alterations to the product is not permitted other than by DMN-WESTINGHOUSE trained personnel, to ensure safe operation. ATEX –Approval Equipment IMPORTANT: Read before commissioning : ...
  • Page 29 Applying the safety instructions when the valve is in operation Only operate the valve when it is fitted with the protective safety parts supplied by DMN-WESTINGHOUSE. These are: mechanical protection i.e. chain guard and end cover plates (104); electro-mechanical protection i.e. safety switches (if fitted).
  • Page 30 DMN-WESTINGHOUSE AL-BL Rotary Valves Rotary valves Type designation Example Rotary valve Material of Type Size Execution construction HT250 Type Size BXXL Material of Cast Iron construction Stainless steel Cast Iron-Complete Nickel plated Cast Iron-Internals Chrome plated Cast Iron-Bore Chrome plated...
  • Page 31 DMN-WESTINGHOUSE AL-BL Rotary Valves Nameplate Explanation 1 DMN-WESTINGHOUSE unit type 2 Serial number rotary valve 3 Rotor speed 4 Year of manufacture 5 Order number Noise The noise generated by the valve is insignificant compared to the motor and gearbox under normal conditions.
  • Page 32 DMN-WESTINGHOUSE AL-BL Rotary Valves Installing the valve in the system Remove all packing material and preservatives. Check for any transport damages. Turning the rotor is prohibited. Danger to fingers and hands. Electric connection. Make sure that, appropriate power supplies are utilised during operation, and that in the case of plant or plant parts failure no dangerous voltages can reach the rotary valve.
  • Page 33 DMN-WESTINGHOUSE AL-BL Rotary Valves If delivery excludes drive On one side of the valve holes have been tapped for fitting the motor base plate (see drawing for dimensions). To fasten the chain guard, three holes have been tapped in the bearing housing of the valve (see drawing for dimensions).
  • Page 34 DMN-WESTINGHOUSE AL-BL Rotary Valves 2.4.2 Mounting the valve in the system When installing the valve make sure it is not unevenly loaded S T O P by external forces or vibrations. During operation or testing the inlet / outlet and vent hole...
  • Page 35 The air supply must always be present when there is product in the valve, and especially after conveying ceases. DMN-WESTINGHOUSE valves have been manufactured with great care. To reduce air leakage’s, internal running clearances are kept extremely small during manufacture and assembly of the valve.
  • Page 36 DMN-WESTINGHOUSE AL-BL Rotary Valves Operation instructions AL-BL series 3.1.1 General 3.1.2 Technical specifications 3.1.3 Construction 3.1.3.1 General assembly and parts list AL-BL series 3.1.3.2 Shaft sealing standard 3.1.4 Dismantling, assembling and adjusting instructions 3.1.4.1 Dismantling standard execution 3.1.4.2 Reassembling standard execution 3.4.4.3...
  • Page 37 DMN-WESTINGHOUSE AL-BL Rotary Valves 3.1.1 General The type AL and BL series rotary airlocks are designed for the metering and pneuma- tic transport of products in powder form. The limits stated in the technical specification 3.1.2 should not be exceeded.
  • Page 38 DMN-WESTINGHOUSE AL-BL Rotary Valves 3.1.3. Construction 3.1.3.1 General assembly and parts list type AL-BL series Fig. 3.1.3.1 Execution AL-AXL-AML. Fig. 3.1.3.2 Execution BL-BXL-BXXL. Code: AL-E.B.01.B 11-2012...
  • Page 39 DMN-WESTINGHOUSE AL-BL Rotary Valves Body Rotor Stud End cover Spacer ring Flange Safety ring Washer Cover Locknut Gland follower Ball-bearing Head screw Lantern ring End cover Washer Extension piece Nilos ring Gland packing Bolt Coupling Bolt Rotor blade Plug Scraper blade...
  • Page 40 DMN-WESTINGHOUSE AL-BL Rotary Valves 3.1.3.2 Rotor shaft sealing Standard executions are : shaft sealing with gland packing; air purge with gland packing; air purge with lip seal. Access rotating part, mind your fingers. 3.1.3.2.1 Shaft sealing with gland packing 412 Stud...
  • Page 41 DMN-WESTINGHOUSE AL-BL Rotary Valves Carefully fit the new packing and re-assemble the gland follower (421) which must be pulled up evenly by means of the gland nuts (413) but not beyond finger tightness at this stage. Insert packing rings one at the time with joints staggered 60 apart.
  • Page 42: Dismantling Standard Execution

    AL-BL Rotary Valves 3.1.4 Dismantling, assembly and adjustment instructions for the valve DMN-WESTINGHOUSE valves have been manufactured with great care. To reduce air leakage’s, internal running clearances are kept extremely small during manufacture and assembly of the valve. do not use heavy or rough tools;...
  • Page 43 DMN-WESTINGHOUSE AL-BL Rotary Valves Support the rotor to keep it in line with the bore otherwise damage may be caused to the rotor blades and/or bore of the body. Place the rotor on a wooden surface to prevent the rotor blades from being damaged.
  • Page 44 DMN-WESTINGHOUSE AL-BL Rotary Valves 3.1.4.3 Rotor adjustment for standard execution The standard executions have the following axial and radial clearances. Body Rotor Clearance Type end covers Size valve material axial and radial material AL-BL 150 - 350 0,12 - 0,17 mm...
  • Page 45 DMN-WESTINGHOUSE AL-BL Rotary Valves Rotor with fixed blades Fig. 3.1.4.3.1 Adjustment for axial clearance. The rotor must be adjusted in axial direction (at both sides) with a tolerance between the machined surfaces of the rotor. Push the rotor hard against the inside face of the end cover at the non-drive end.
  • Page 46 DMN-WESTINGHOUSE AL-BL Rotary Valves Fig. 3.1.4.3.2 Adjustment for axial and radial clearance rotor blades. Adjust axial/radial clearance and rotor blade using feeler gauges or copper shims of the correct thickness. Above described adjustment has to be executed with all blades.
  • Page 47 DMN-WESTINGHOUSE AL-BL Rotary Valves Rotor with adjustable synthetic or flexible blades Average the axial clearance of the rotor blades. Adjust radially with zero clearance. Fasten clamp plate simultaneously. Check the final adjustment by turning the rotor by hand. If larger valves of 300 and 350 size have flexible blades it may be necessary to rotate by lever action.
  • Page 48: Al-Bl Ht Execution 250C

    DMN-WESTINGHOUSE AL-BL Rotary Valves Al-BL HT execution 250C General assembly and parts list type AL-BL HT execution 250°C. Fig. 3.2.1 AL-AXL-AML HT execution 250°C. 302 Rotor blade 101 Body 170 Grease nipple 303 Scraper blade 102 End cover 171 Nilos ring...
  • Page 49 DMN-WESTINGHOUSE AL-BL Rotary Valves Clearance depends of size valve and product temperature and valve material. See enclosed table of clearances for the right adjustment of the rotor. To achieve rotor end clearance stated above a gasket is fitted between the body and end cover non-drive end.
  • Page 50: Construction

    DMN-WESTINGHOUSE AL-BL Rotary Valves Operation instructions AL-HT execution 600C 3.3.1 General 3.3.2 Technical specifications HT 3.3.3 Construction 3.3.3.1 General assembly and parts list AL-HT execution 600C 3.3.3.2 Shaft sealing standard see 3.1.3.2 3.3.4 Dismantling, assembling and adjusting instructions 3.3.4.1 Dismantling standard execution 3.3.4.2...
  • Page 51: Operation Instructions Al-Ht Execution 600C

    DMN-WESTINGHOUSE AL-BL Rotary Valves 3.3 Operation instructions AL HT execution 600C 3.3.1 General The type AL-HT rotary airlocks are designed for the metering of products in powder form for temperature to 600 C. The limits stated in the technical specification 3.3.2 should not be exceeded.
  • Page 52: Construction

    DMN-WESTINGHOUSE AL-BL Rotary Valves 3.3.3 Construction 3.3.3.1 General assembly and parts list type AL HT execution 600C Fig. 3.3.3.1 AL HT execution 600°C. Body Rotor Stud End cover Support ring Bearing cover Shim Washer Ball-bearing HT Safety ring Gland follower...
  • Page 53 (3.1.3.2 Page 17.) 3.3.4 Dismantling, assembly and adjustment instructions for the valve DMN-WESTINGHOUSE valves have been manufactured with great care. To reduce air leakage’s, internal running clearances are kept extremely small during manufacture and assembly of the valve.
  • Page 54: Dismantling Standard Execution

    DMN-WESTINGHOUSE AL-BL Rotary Valves 3.3.4.1 Dismantling standard execution Fig. 3.3.4.1.1 Dismantling non drive side. Non-drive side Remove shaft guards. Remove the bolts (151) from the bearing cover (104) and remove cover. Loosen the locking nut (222) remove the safety ring (221) and spacer ring (202).
  • Page 55 DMN-WESTINGHOUSE AL-BL Rotary Valves Fig. 3.3.4.1.2 Dismantling drive side. Drive side Remove shaft guards. Dismantle the drive parts. Loosen the locking nut (222) remove the safety ring (221) and spacer ring (202). Remove the bearing housing assembly countersunk screws (160) fit two of these bolts in the tapped jacking holes provided in the bearing housing (108) and remove.
  • Page 56 DMN-WESTINGHOUSE AL-BL Rotary Valves 3.3.4.2 Re-assembly standard execution After thoroughly cleaning, checking and renewing necessary parts the valve should be re-assembled as follows: It has been stressed by 'SKF' that no grease is to be used in the S T O P assembly or operation of the bearings.
  • Page 57 DMN-WESTINGHOUSE AL-BL Rotary Valves Shim thickness clarification Rotate rotor freely in the valve bore. Fig. 3.3.4.3.1 Shim thickness clarification. The special bearings will locate themselves centrally in their recesses when this has been achieved check the clearances between inner spacer and the rotor shaft shoulder at both ends of the rotor.
  • Page 58 DMN-WESTINGHOUSE AL-BL Rotary Valves Rotor with adjustable blades Axial/radial adjustment of the rotor blades: The tolerances for the adjustment of the rotor blades depends on the product temperature. The special settings for the valve you will find on the datasheet.
  • Page 59: Shaft Sealing Executions See

    DMN-WESTINGHOUSE AL-BL Rotary Valves Operation instructions OS-GOS 3.4.1 General 3.4.2 Technical specifications 3.4.3 Construction 3.4.3.1 General assembly and parts list OS-GOS 3.4.3.2 Shaft sealing executions see 3.1.3.2 3.4.4 Dismantling, assembling and adjusting instructions Standard execution see 3.1.4 Code: AL-E.B.01.B 11-2012...
  • Page 60: General

    DMN-WESTINGHOUSE AL-BL Rotary Valves 3.4.1 General The type OS and GOS rotary airlocks are designed for the metering and pneumatic transport of products in powder form. The limits stated in the technical specification 3.4.2 should not be exceeded. The user is responsible for any defects and/or risks or damages resulting from improper use.
  • Page 61: General Assembly And Parts List Os-Gos

    DMN-WESTINGHOUSE AL-BL Rotary Valves 3.4.3 Construction 3.4.3.1 General assembly and parts list type OS-GOS Fig. 3.4.3.1 OS-GOS standard execution. Code: AL-E.B.01.B 11-2012...
  • Page 62: Standard Execution See

    (3.1.3.2 Page 17.) 3.4.4 Dismantling, assembly and adjustment instructions for the valve DMN-WESTINGHOUSE valves have been manufactured with great care. To reduce air leakage’s, internal running clearances are kept extremely small during manufacture and assembly of the valve. do not use heavy or rough tools;...
  • Page 63: Gl Standard Execution

    DMN-WESTINGHOUSE AL-BL Rotary Valves Operation instructions GL 3.5.1 General 3.5.2 Technical specifications 3.5.3 Construction 3.5.3.1 General assembly and parts list GL 3.5.3.2 Shaft sealing executions see 3.1.3.2 3.5.4 Dismantling, assembling and adjusting instructions Standard execution see 3.1.4 Code: AL-E.B.01.B 11-2012...
  • Page 64: General

    DMN-WESTINGHOUSE AL-BL Rotary Valves 3.5.1 General DMN-WESTINGHOUSE GL valves are specially designed for gravity feeding and pneumatically conveying granular products. The configuration of the body and rotor has been developed specifically to minimise degradation whilst retaining the best possible pocket filling efficiency.
  • Page 65: Construction

    DMN-WESTINGHOUSE AL-BL Rotary Valves 3.5.3 Construction 3.5.3.1 General assembly and parts list type GL Fig. 3.5.3.1 GL standard execution. Body Washer Stud End cover Plug Cover Name plate Washer Ball-bearing Arrow Gland follower End cover Washer Gland packing Nilos ring...
  • Page 66: Standard Execution See

    (3.1.3.2 Page 17.) 3.5.4 Dismantling, assembly and adjustment instructions for the valve DMN-WESTINGHOUSE valves have been manufactured with great care. To reduce air leakage’s, internal running clearances are kept extremely small during manufacture and assembly of the valve. do not use heavy or rough tools;...
  • Page 67: Dismantling And Assembling Standard Drive

    DMN-WESTINGHOUSE AL-BL Rotary Valves Dismantling and assembly standard drive Please follow safety instructions of chapter 1. Access rotating part, mind your fingers. 3.6.1 Chain drive Fig. 3.6.1 Chain drive. 501 Drive 506 Chain wheel 522 Adjusting screw 527 Bolt 502 Support plate...
  • Page 68: Direct Drive

    DMN-WESTINGHOUSE AL-BL Rotary Valves 3.6.2 Direct drive Fig. 3.6.2.1 Direct drive. Drive Bolt Connecting piece Cylinder bolt Flange 150/175 Washer Coupling Washer Bush rotor Bush motor Dismantling Dismantle drive Remove connecting piece Remove coupling Assembly Mount and secure coupling parts...
  • Page 69 DMN-WESTINGHOUSE AL-BL Rotary Valves Fig. 3.6.2.2 Direct drive. Drive Cylinder bolt Connecting piece Washer Cylinder bolt Code: AL-E.B.01.B 11-2012...
  • Page 70: Accessories ( If Fitted )

    Cylinder bolt Fastening plate Bolt Countersunk screw The safety switch must be connected to the client safety circuit, which will stop or prevent the valve from operating. Safety control module is not part of the DMN supply. Code: AL-E.B.01.B 11-2012...
  • Page 71: Pulsating Air Execution

    DMN-WESTINGHOUSE AL-BL Rotary Valves Pulsating air execution Fig. 3.7.2 Pulsating air injection. Cam disc Tube Ø8 Shim Bolt Solenoid Washer Coupling 1/8” Coupling 1/4” Bolt T-coupling Cyl. Adjusting screw Plug 1/8” Technical data Valve mechanical : Norgren type S/666 : 1/4”...
  • Page 72: Pressure Regulator

    DMN-WESTINGHOUSE AL-BL Rotary Valves Pressure regulator Fig. 3.7.3 Pressure regulator. Air filter / Pressure regulator Tube with Pressure gauge T-coupling Ø10mm Ball valve G 1/4” 2/2 Solenoid valve Code: AL-E.B.01.B 11-2012...
  • Page 73: Zero Speed Indication

    DMN-WESTINGHOUSE AL-BL Rotary Valves Zero speed indication Fig. 3.7.4 Drive side. Fig. 3.7.5 Non drive side. Fig. 3.7.6 Direct drive. Bearing cover Bolt Impulssender Cover plate Proximity switch Code: AL-E.B.01.B 11-2012...
  • Page 74: Inlet Restrictor Drop Out Box Air Vent Box

    DMN-WESTINGHOUSE AL-BL Rotary Valves - Inlet restrictor Drop out box Air vent box Fig. 3.7.7 Inlet restrictor and Drop out box Fig. 3.7.8 Vent box (one side) Vent box (all around) Installation procedure Please respect safety instructions. Check rotating direction.
  • Page 75: Maintenance

    DMN-WESTINGHOUSE AL-BL Rotary Valves Maintenance General The interval between overhauls will vary with the product being handled and should be based on total operating time. To a large degree the rate of wear for a particular application would be ascertained by practical experience.
  • Page 76: Cleaners

    DMN-WESTINGHOUSE AL-BL Rotary Valves 4.5 Cleaners Do not use cleaner with solvent. If using a cleaner with solvent is necessary, make sure that solvent can not reach bearing and sealing. In case of high-pressure cleaning, pay attention to the ball- S T O P bearing.
  • Page 77 Maintenance  While the valve is in operation no maintenance or repair work must be carried out.  The motor must be isolated before disassembly, cleaning or maintenance is carried out. DMN-WESTINGHOUSE Rotary valves 12-2009 Rotary valves safety rules-GB_rev1.doc Page 1 / 1...
  • Page 78 7. Het niet volgen van bovenstaande instructies kan tot lekkage leiden. N.B. Het bovenstaande geldt voor alle luchtafdichtingen, behalve punt 6 in geval van gebruik van oliekeerringen in plaats van stopbuspakkingen. Spanish, Italian and French: please turn over. © DMN-WESTINGHOUSE 2001/11...
  • Page 79 N.B. quanto sopra si riferisce a tutti i sistemi di tenute con flussaggio, ad eccezione del punto 6 nel caso in cui venga impiegato un anello a labbro anzichè la baderna. English, Dutch and German: please turn over. © DMN-WESTINGHOUSE 2001/11...

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