Download - DMN Introduction 2015 (RJ)
DMN-WESTINGHOUSE
Introduction
DMN-WESTINGHOUSE
• Components for the bulk solids industry• Manufacture rotary valves & diverter valves• High quality at competitive prices• ISO 9001• ATEX 94/9/EC
World-wide network
DMN UK
• Founded in 1998• Sales office and Workshop in Calne, Wiltshire• Dedicated Northern & Southern UK sales engineers• After Sales Service Dept:
• Valve refurbs • Maintenance/service contracts
• Member of SHAPA
Rotary Valve Construction
Body
End Cover
Rotor
Seals
Bearings
Rotary valve functions
• Maintain pressure differential (airlock)• Multi vain rotor within body• Typical blades clearances 0.13mm
• Metering device• Silo/hopper discharge into conveying line at
specified rate• Inverter rated options available for variable
feed
• Explosion containment• Autonomous Protective System (APS)• Rotary valves designed to protect system by
preventing flame propagation• DMN valves typically designed explosion
proof to 10 bar g
Rotary valves
High duty valves
BL
AL
• Sheared angle inlet• Replaceable blades as standard• Full rotor, blade, seal options• Full protective coating options• 10 bar g explosion proof • 316 s/s available• Extra large inlet available
• Easy open & clean models available• Reduced capacity model available (AML)• Granular model available (AL)
• Atex ‘Equipment Only’ available• Atex ‘Autonamous Protective System (APS)
available
Rotary valvesHigh duty valve - options
Rotors
Replaceable blades as standard
Reduced capacity- metering
Semi end disc- abrasive
Scalloped-hygroscopic-dairy
Seals Coatings
Gland packing
Lip seals
Labyrinth airpurge seal
• Tungsten carbide• Chrome plate• Nickel plate
Rotary valves
HD - easy open & clean valves• Easy removal of rotor for fast and
efficient cleaning
• Support bars for improved ease of rotor removal for fast and efficient cleaning
• Valve bore protected• Increased safety at work
• USDA Dairy approved options available
• CIP models available
• Atex ‘Equipment Only’ available• Atex ‘Autonamous Protective System
(APS)’ available
AL/D
BL/MZC
Rotary valves
HD - Granular
• Cast inlet ‘beak’• Maximum protection against product
degradation• Available in 316 s/s & aluminium
GL
AML
HD - Reduced capacity• Reduced capacity rotor / oversized inlet
& outlet• Transitional inlet – outlet• Not available in 316 s/s
• Atex ‘Equipment Only’ available• Atex ‘Autonamous Protective System
(APS) available
Rotary valves
Medium duty valves
MALD
MLD
• 10 bar g explosion proof• Limited blade, seal options• Limited protective coating options
• Direct drive• In board bearings• Transitional inlet/outlet
• Medium specification valves for medium duty applications
• ATEX ‘Equipment Only’ available
Rotary valves
Low duty valve
DL
• Sizes 200, 250, 300• Universal flange• Replaceable polyurethane or fixed steel
blades• 2 or 3 bar g explosion proof• Available from stock• Low cost
• Typically filter receiver hopper application
Diverter valve functions
• Divert materials in conveying line• Lean phase/Dense phase• Positive/vacuum pressure• Gravity
• Converge materials in conveying line• Lean phase/Dense phase• Positive/vacuum pressure
• Abrasive resistant models
• Atex certified• FDA approved
Diverter valves
Plug Type Diverter
SPTD
PTD
• Twin pipe design• 10 bar g explosion proof• Static/inflatable seal options (3/6 bar g
conveying)• Wear resistant options• Divert & converge
Plug Type Diverter – Single Pipe
• Single pipe design• Static seals only (3 bar g conveying)• Divert only
Diverter valves
Ball Type Diverter
BTD
• Suitable for abrasive products• Suitable for high pressure / high temp
systems• Divert & converge• All wear parts accessible from external• Seals replaceable while valve in situ
Diverter valves
FDV
• Available cast iron, stainless steel or aluminium
• Available with flange or pipe fittings• Easy maintenance
Flap Type Diverter
Fill Vent Diverter• Fill & vent hopper consecutively or bypass• Available cast iron, stainless steel or
aluminium• Available with flange or pipe fittings• Easy maintenanceFVV
Diverter valves
GPD
Gravity Plug Diverter
• Available cast iron, stainless steel or aluminium
• Simple construction – one piece body with removable end plates and internal rotating plug blade – easy clean/maintenance
• Sealed, permanently lubricated external bearings
• Change on the fly with most powders
Diverter valves
Multi port - Tube Diverter
2/3-TDV
M-TDV
• Up to 14 ports• Divert & converge• Inflatable seals (3 bar g conveying)• All product contact materials FDA approved• Integral PLC
• 2 or 3 ports• Divert & converge• Inflatable seals (3 bar g conveying)• Full stainless steel & stainless steel /
aluminium configurations available
2 / 3 port - Tube Diverter
Slide & Butterfly Valves
• Manual or electro-pneumatic operation
• Suitable to fit between DIN or ANSI flanges
• Available in cast iron or stainless steel
• Available in cast iron or stainless steel• Many types available in stock from
UK• Competitive pricing
• The original Morris pipe coupling• Easy to install• Substantial and reliable construction• Competitive pricing• Electrical conductivity guaranteed• Available for practically every pipe
diameter• Large stock holding
DMN UK official UK distributors of Morris Coupling
After Sales Services
• Valve refurbishment at DMN UK workshop
• On site preventative service contracts
• Free of charge assessment by a DMN engineer and a quotation before commitment to works
• Valves for use in potentially explosive /
hazardous areas can now be upgraded and fully certified to ATEX 95 compliance.
• Comprehensive 12 month warranty and
continued back up on all refurbished DMN valves
Thank you