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