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DMN Training Presentation


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Training presentation giving basic imformation on - Rotary valves there applications and features, Diverter valves, and ATEX

Published in: Business

DMN Training Presentation

  1. 1. DMN-WESTINGHOUSE Basic Training and Product Overview
  2. 2. DMN-WESTINGHOUSE <ul><li>Components for the bulk solids industry </li></ul><ul><li>High quality at competitive prices </li></ul><ul><li>World-wide sales network </li></ul><ul><li>ISO 9001 </li></ul><ul><li>ATEX 94/9/EC </li></ul>
  3. 3. DMN Offices <ul><li>5 sales offices </li></ul><ul><li>DMN Noordwijkerhout (head office) (1950) </li></ul><ul><li>DMN Schüttguttechnik (1991) </li></ul><ul><li>DMN, Incorporated (1995) </li></ul><ul><li>DMN UK (1998) </li></ul><ul><li>DMN France (2003) </li></ul><ul><li>2 production facilities </li></ul><ul><li>DMN Noordwijkerhout , Holland (Rotary Valves) </li></ul><ul><li>Gesra (2000), Germany (Diverter Valves) </li></ul>
  4. 4. DMN UK <ul><li>Founded in 1998 </li></ul><ul><li>Sales office and Workshop in Calne, Wiltshire </li></ul><ul><li>Dedicated Northern England & Scotland sales engineer </li></ul><ul><li>Refurbishment service </li></ul><ul><li>Maintanence and servicing contracts & surveys </li></ul><ul><li>Upgrading existing valves to ATEX requirements </li></ul><ul><li>Large UK stock of Morris couplings available next day. </li></ul><ul><li>Member of SHAPA </li></ul>
  5. 5. World-wide network
  6. 6. AL Rotary Valve Design Standard “Drop – Through” valve
  7. 7. BL Rotary Valve Design Standard “Blowing - seal” valve
  8. 8. Rotary Valve Construction Body End Cover Rotor Seals Bearings
  9. 9. What does a rotary valve do? The main purpose of a rotary valve to maintain a pressure differential. This is done by creating an air seal using a multi-vane rotor. Rotors rotate within the valve housing with typical clearances of 0.13mm giving an air seal while feeding material.
  10. 10. Rotary Valve Applications Air Lock Application Vacuum dust extraction filtration unit. Valve being used to contain negative vacuum within the system.
  11. 11. Rotary Valve Applications Metering Application Silo discharge pneumatic conveying system. Valve used to meter product into a conveying line at a given rate while maintaining an air lock.
  12. 12. Rotary Valve Applications Explosion & Flame Containment Explosion & flame containment – “APS” Autonomous Protective System. Rotary valves commonly used to protect systems, containing the explosion within the system and stopping the flame path through the valve.
  13. 13. ATEX Regulations <ul><li>Three basic components required to cause an explosion. </li></ul><ul><li>Fuel (Dust) </li></ul><ul><li>Ignition source (Non </li></ul><ul><li>protected electronics) </li></ul><ul><li>Oxygen </li></ul>
  14. 14. ATEX Regulations <ul><li>Typical DUST ATEX Zoning </li></ul><ul><li>Loading Hopper and valve </li></ul><ul><li>most likely area for </li></ul><ul><li>explosion to occur (Zone 20) </li></ul><ul><li>Area directly outside of </li></ul><ul><li>loading hopper (Zone 21) </li></ul><ul><li>Further away from </li></ul><ul><li>concentrated dust area </li></ul><ul><li>explosion least likely of </li></ul><ul><li>zoned areas (Zone 22) </li></ul>
  15. 15. ATEX Regulations <ul><li>Typical GAS ATEX Zoning </li></ul><ul><li>Underground fuel cell </li></ul><ul><li>most likely area for </li></ul><ul><li>explosion to occur (Zone 0) </li></ul><ul><li>Fuel pump area (Zone 1) </li></ul><ul><li>Further away from </li></ul><ul><li>concentrated gas area </li></ul><ul><li>explosion least likely of </li></ul><ul><li>zoned areas (Zone 2) </li></ul>
  16. 16. Rotor Designs Replaceable blades – Used with abrasive materials. Blades can be easily replaced to maintain tight clearances rather replace complete rotor. Reduced capacity rotor – Used on metering applications when a specified throughput is required with a good level of accuracy.
  17. 17. Rotor Designs Semi end-disc rotor – Used when handling abrasive material offering additional wear protection Closed end rotor – Commonly used when handling pelletized products such as plastic pellets. Closed end disc gives protection against end cover wear.
  18. 18. Rotor Designs Scalloped pocket / Radius pocket rotor – Smoothed root pockets used to help discharging sticky / hydroscopic products. Reduced capacity, multi-pocket, dosing rotor – Mostly used in the food and pharmaceutical industries when handling expensive active ingredients.
  19. 19. Rotors Designs <ul><li>t </li></ul>
  20. 20. Seal Options Gland Packing Lip Seals Labyrinth – Spiral groove air purged seals
  21. 21. Wear Resistance Options Coatings Plasma sprayed tungsten carbide coating being applied to a BL end cover. Other coatings also available such as plasma and chrome. Replaceable blades Replaceable blades as standard with most of the DMN valve range. Hardox blades used for very aggressive products.
  22. 22. Components <ul><li>Rotary valves </li></ul><ul><li>Diverter valves </li></ul><ul><li>Slide gate valves & Butterfly valves </li></ul><ul><li>Morris couplings & Pipe & Bends </li></ul><ul><li>Options rotary valves </li></ul>
  23. 23. AL airlock <ul><li>High filling efficiency </li></ul><ul><li>Shared angle inlet </li></ul><ul><li>Minimum air leakage </li></ul><ul><li>Explosion proof models available up to 10 bar g </li></ul><ul><li>Customised solutions </li></ul><ul><li>Flanges drilled to PN10, ANSI 150 lbs and JIS </li></ul><ul><li>Flameproof versions available suitable for St2 products </li></ul><ul><li>Available in 10 consecutive sizes from 100-500 </li></ul>
  24. 24. AML airlock <ul><li>High filling efficiency </li></ul><ul><li>Large diameter inlet in reference to the rotor volume </li></ul><ul><li>Minimum air leakage </li></ul><ul><li>Explosion proof models available up to 10 bar g </li></ul><ul><li>Customized solutions </li></ul><ul><li>Housing with one round and one square flange </li></ul><ul><li>Round flange drilled in accordance with PN10, ANSI 150 lbs or JIS </li></ul><ul><li>Suitable as transition piece from round to square and vice versa </li></ul>
  25. 25. AL/BL dairy valves <ul><li>USDA dairy approved </li></ul><ul><li>Easy removal of rotor for fast and efficient cleaning </li></ul><ul><li>Smooth product contact surfaces in food grade material </li></ul><ul><li>Rotor pockets radiused and polished to Ra=0,8 μm </li></ul><ul><li>Rotor vanes chamfered on all edges </li></ul><ul><li>Flame proof and explosion shock resistant versions available </li></ul><ul><li>BL available with enlarged inlet </li></ul>
  26. 26. AL/BL MZC valves <ul><li>Supporting bars for easy removal of rotor and end cover </li></ul><ul><li>Direct drive or chain drive </li></ul><ul><li>USDA dairy approved models available </li></ul><ul><li>Explosion shock resistant and flame proof versions available </li></ul><ul><li>BL available with enlarged inlet for cyclone and spray drier applications </li></ul>
  27. 27. SAL sanitary valve <ul><li>For sanitary use </li></ul><ul><li>Easy detachable rotor </li></ul><ul><li>Low capacity </li></ul><ul><li>Complete valve highly polished Ra= 0,8 μm (inside and outside) </li></ul><ul><li>Product surfaces FDA approved </li></ul><ul><li>Maximum product temperature up to 100 °C </li></ul><ul><li>System pressure up to 1 bar g </li></ul><ul><li>Available in 3 sizes: 80, 100 en 150 </li></ul><ul><li>SAL 150 available in MZC version </li></ul>
  28. 28. GL granular valve <ul><li>Maximum protection against product degradation </li></ul><ul><li>High filling efficiency </li></ul><ul><li>Large air vent openings </li></ul><ul><li>Robust construction </li></ul><ul><li>Available with direct drive or chain driven </li></ul><ul><li>Flanges drilled in accordance with PN10, ANSI 150 lbs of JIS </li></ul><ul><li>Available in 5 sizes from 150-350 </li></ul><ul><li>Available in MZC version (option) </li></ul>
  29. 29. ML medium duty valves <ul><li>ML(D), MAL(D) or MGL(D) version </li></ul><ul><li>Easy detachable non-drive </li></ul><ul><li>Compact design </li></ul><ul><li>Substantial construction </li></ul><ul><li>Pressure surge proof up to 10 bar g </li></ul><ul><li>Sheared angle inlet </li></ul><ul><li>Large range of options available </li></ul><ul><li>Airpurge shaft sealing optional </li></ul><ul><li>Flanges drilled to PN10, ANSI 150 lbs or JIS </li></ul>
  30. 30. DL cyclone or dust valve <ul><li>Minimum air leakage </li></ul><ul><li>Polyurethane replaceable and adjustable rotor blades </li></ul><ul><li>Universal flange, suitable for both round and square counter flanges </li></ul><ul><li>Pressure shock resistant up to 10 bar g </li></ul><ul><li>Ex stock delivery </li></ul><ul><li>Optionally available with steel fixed bladed rotor </li></ul><ul><li>Available in 3 sizes: 200,250 and 300 </li></ul>
  31. 31. OS/GOS high capacity valves <ul><li>High capacity </li></ul><ul><li>Available as drop through (OS) of blow through (GOS) versie </li></ul><ul><li>High filling efficiency </li></ul><ul><li>Minimum air leakage </li></ul><ul><li>Square inlet and outlet </li></ul><ul><li>Customized solutions </li></ul><ul><li>Available in Ni-hard </li></ul><ul><li>Available in 3 sizes: 400, 450 and 500 </li></ul>
  32. 32. MS knife valve <ul><li>Two cutting blades </li></ul><ul><li>Special shaped V-rotor </li></ul><ul><li>For abrasive applications </li></ul><ul><li>Solid construction </li></ul><ul><li>Available in 12 sizes from 390x530 to 1100x1320 inlet size </li></ul><ul><li>Rotor volume from 58 liter – 940 liter </li></ul>
  33. 33. Components <ul><li>Rotary valves </li></ul><ul><li>Diverter valves </li></ul><ul><li>Slide gate valves & Butterfly valves </li></ul><ul><li>Morris couplings & Pipe & Bends </li></ul><ul><li>Options rotary valves </li></ul>
  34. 34. 2-3 TDV tube diverter <ul><li>Available with 2 or 3 ports </li></ul><ul><li>Smooth product contact surfaces </li></ul><ul><li>Inflatable seals </li></ul><ul><li>Pressure from -0,8 up to 3 bar g </li></ul><ul><li>Multiple choice of line connections </li></ul><ul><li>Minimised product degradation </li></ul><ul><li>Converging and diverging applications </li></ul><ul><li>Easy detachable construction </li></ul><ul><li>Temperature range -20 °C up to +100 °C </li></ul><ul><li>All stainless and aluminium stainless configurations </li></ul>
  35. 35. M-TDV multiport diverter <ul><li>Up to 14 ports </li></ul><ul><li>Inflatable seals </li></ul><ul><li>All product contact surfaces FDA approved </li></ul><ul><li>Converging and diverging applications </li></ul><ul><li>Minimal product degradation </li></ul><ul><li>Pressure up to 3 bar g </li></ul><ul><li>Temperature range – 20 °C to +100 °C </li></ul><ul><li>Compact design </li></ul>
  36. 36. TDV tube diverter <ul><li>USDA dairy accepted </li></ul><ul><li>Smooth product contact surfaces </li></ul><ul><li>Inflatable seals </li></ul><ul><li>Minimizes product degradation </li></ul><ul><li>Easy detachable construction </li></ul><ul><li>Compact execution available </li></ul><ul><li>Optional flexible stainless steel tube </li></ul><ul><li>Available in 8 sizes from 40-200 mm </li></ul>
  37. 37. PTD dual pipe plug diverter <ul><li>Pressure shock resistant up to 10 bar g </li></ul><ul><li>Compact, 2-channel design </li></ul><ul><li>Minimal maintenance </li></ul><ul><li>User friendly design </li></ul><ul><li>No moving parts on the outside </li></ul><ul><li>Pressure up to 3 bar g (static seals) </li></ul><ul><li>Optional pressure up to 6 bar g available (inflatable seals) </li></ul><ul><li>Available in 7 sizes from 50-200 </li></ul><ul><li>Quick clean version optional available </li></ul>
  38. 38. SPTD single pipe plug diverter <ul><li>Single straight pipe </li></ul><ul><li>Universal application </li></ul><ul><li>For diverting only </li></ul><ul><li>Pressure up to 3 bar g </li></ul><ul><li>Maximum product temperature 80 °C </li></ul><ul><li>Static or dynamic sealing </li></ul><ul><li>No moving parts on the outside </li></ul><ul><li>Available in 6 sizes from 150-400 </li></ul>
  39. 39. FDV flap diverter <ul><li>Compact design </li></ul><ul><li>Optimal sealing </li></ul><ul><li>Easy maintenance </li></ul><ul><li>Available with flange or pipe fittings </li></ul><ul><li>Flanges drilled in accordance with PN10, ANSI 150 lbs of JIS </li></ul><ul><li>In cast iron, aluminium or stainless steel </li></ul><ul><li>Available in 7 sizes from 50-250 (pipe versions up to 150) </li></ul>
  40. 40. FVV fill vent valve <ul><li>Saving system costs </li></ul><ul><li>Compact desing </li></ul><ul><li>Easy maintenance </li></ul><ul><li>Optimal sealing </li></ul><ul><li>Available with flange or pipe fittings </li></ul><ul><li>Flanges drilled according to PN10 of ANSI 150 lbs </li></ul><ul><li>In cast iron, aluminium or stainless steel </li></ul><ul><li>Available in 6 sizes from 50-150 </li></ul>
  41. 41. BTD ball diverter <ul><li>For abrasive products </li></ul><ul><li>Suitable for systems with high pressures and temperatures </li></ul><ul><li>Body made from ductile spheroidal cast iron </li></ul><ul><li>Replaceable wear bushes on outlet </li></ul><ul><li>Grease lubricated shaft seals </li></ul><ul><li>Seals can be replaced with the valve in place </li></ul><ul><li>Available in 7 sizes from 65-250 </li></ul>
  42. 42. GPD gravity plug diverter <ul><li>Rugged cast construction </li></ul><ul><li>Available in stainless steel AISI 316, cast iron and aluminium </li></ul><ul><li>Sealed, permanently lubricated outboard bearings </li></ul><ul><li>Easy demountable design </li></ul><ul><li>Change on the fly with most powders </li></ul><ul><li>One-piece body with removable end plates and rotating blade assembly </li></ul><ul><li>Pneumatic or manual operation </li></ul><ul><li>Flanges drilled according to PN10 or ANSI 150 lbs </li></ul><ul><li>Available in 4 sizes from 150-300 </li></ul>
  43. 43. Components <ul><li>Rotary valves </li></ul><ul><li>Diverter valves </li></ul><ul><li>Slide gate valves & Butterfly valves </li></ul><ul><li>Morris couplings & Pipe & Bends </li></ul><ul><li>Options rotary valves </li></ul>
  44. 44. Slide & Butterfly Valves <ul><li>Manual or electro-pneumatic operation </li></ul><ul><li>Suitable to fit between DIN or ANSI flanges </li></ul><ul><li>Available in cast iron or stainless steel </li></ul><ul><li>Available in cast iron or stainless steel </li></ul><ul><li>Many types available in stock from UK </li></ul><ul><li>Competitive pricing </li></ul>
  45. 45. Morris couplings <ul><li>The original Morris pipe coupling </li></ul><ul><li>Easy to install </li></ul><ul><li>Substantial and reliable construction </li></ul><ul><li>Competitive pricing </li></ul><ul><li>Electrical conductivity guaranteed </li></ul><ul><li>Available for practically every pipe diameter </li></ul><ul><li>Large stock holding </li></ul>
  46. 46. Pipe & Bends <ul><li>High performance ERW tubes </li></ul><ul><li>Aluminium ERW tubes </li></ul><ul><li>Perforated ERW tubes </li></ul><ul><li>Hollow sections </li></ul><ul><li>Stainless steel tubes </li></ul><ul><li>General purpose tubes to BS1387 </li></ul><ul><li>Cold drawn seamless tubes </li></ul><ul><li>Cold drawn welded tubes </li></ul><ul><li>Pneumatic conveying tubes </li></ul><ul><li>Long radius bends </li></ul><ul><li>  </li></ul><ul><li>Offered in Mild Steel, Stainless Steel & Aluminium </li></ul>
  47. 47. Components <ul><li>Rotary valves </li></ul><ul><li>Diverter valves </li></ul><ul><li>Slide gate valves & Butterfly valves </li></ul><ul><li>Morris couplings & Pipe & Bends </li></ul><ul><li>Options rotary valves </li></ul>
  48. 48. Options I <ul><li>RID Rotor Interference Detection </li></ul><ul><li>minimise damage to the rotary valve </li></ul><ul><li>warn of possible contamination of the conveyed product </li></ul><ul><li>simple make or break connection: the rotor is insulated from the rest of the valve and if and when the rotor touches the casing, contact is made which is relayed to the system control </li></ul>
  49. 49. Options II 2. Drop out box (competitive pricing cast iron versions) 1. Inlet restrictor (stainless steel) 3. Air vent box 1 2 3
  50. 50. Thank you