Model DM 462 - Double-Seat Angled Valve Brochure

Pressure Control ValvesPressure Reducing Valves DM 462Valve for Hygiene Applications | Ultrapure MediaPage No. DM 462/2.1.116.1 - Standing 15.11.2011MANKENBERG GmbH | Spenglerstraße 99 | D-23556 Lübeckwww.mankenberg.de | Tel. +49 (0) 451 - 8 79 75 0  Technical DataConnection DN 25 - 100Nominal Pressure PN 2.5 - 10Outlet Pressure 0.3 - 5 barInlet Pressure up to 8 barKvs-Value4 - 80 m3/hTemperature 180 °CMedium liquids, gases and steam DescriptionMedium-controlled pressure reducers are simple control valves offeringaccurate control while being easy to install and maintain. They controlthe pressure downstream of the valve without requiring pneumatic orelectrical control elements.The DM 462 pressure reducing valve is a twin seatdiaphragm-controlled spring-loaded proportional control valve which isprimarily used for hygienic applications in the food processing andpharmaceutical industries. A PTFE protective foil renders the diaphragmphysiologically safe and steamproof up to 180 °C. The valve does notrequire an external pilot line.This valve is manufactured from deep-drawn stainless steel featuringexcellent corrosion resistance. It contains virtually no dead pockets and issuitable for use in CIP and SIP systems. The angled design allowscomplete draining.The spring module comprising bonnet, spring, adjusting screw,diaphragm and internal components, is connected to the valve body onlyby means of a clamp ring and two bolts. Changing the diaphragm or thecomplete spring assembly for a different control pressure range isextremely simple and does not call for special tools. The same applies toservicing and maintenance.The outlet pressure to be controlled is balanced across the diaphragm bythe force of the valve spring (set pressure). As the outlet pressure risesabove the pressure set using the adjusting screw, the valve cone movestowards the seat and the volume of medium is reduced. As the outletpressure drops the valve control orifice increases; when the pipeline isdepressurised the valve is open. Rotating the adjusting screw clockwiseincreases the outlet pressure.These valves are no shut-off elements ensuring a tight closing of thevalve. In accordance with the VDI/VDE guideline 2174 a leakage rate of0.5 percent of the constant volume flow is permitted for the valve inclosed position.. Standard» all stainless steel construction» clamping flanges DIN 32676» non increasing adjusting screw» quick-release body clamp ring Options» polished version for food, pharmaceutical and superclean applications,surface roughness: Ra = 0.25/ = 0.4/ = 0.8 µm» diaphragm protectd by PTFE foil» for toxic or hazardous media: sealed bonnet complete with leakageline connection (incl. sealed adjusting screw). Must be installed with aleakage line capable of draining leaking medium safely and withoutpressure» various diaphragm and seal materials suitable for your medium» special connections: Aseptic, ANSI or DIN flanges, welding spigots;other connections on request» special versions on requestOperating instructions, know how and safety instructions must beobserved. All the pressure has always been indicated as overpressure.We reserve the right to alter technical specifications without notice.Kvs-Values [m3/h]nominal diameter DN25 40 50 65 80 1004 22 22 60 70 80Setting Ranges [bar] and Nominal Pressure PNnominal diameter DN40 - 100 25 - 100 25 - 1000.3 - 1.1 0.8 - 2.5 2 - 5PN 10/2.5 PN 10/6 PN 10/10 1 / 2Pressure Control ValvesPressure Reducing Valves DM 462Valve for Hygiene Applications | Ultrapure MediaPage No. DM 462/2.1.116.2 - Standing 15.11.2011MANKENBERG GmbH | Spenglerstraße 99 | D-23556 Lübeckwww.mankenberg.de | Tel. +49 (0) 451 - 8 79 75 0MaterialsTemperature 130 °C 180 °CBody, Spring, Internals SST 316L SST 316LValve Seal EPDM FEPMSpring CrNi-steel CrNi-steelDiaphragm EPDM FPMProtection Foil for Diaphragm Option PTFEDimensions [mm]size nominal diameter DN (clamping flanges)25 40 50 65 80 100AE 100 115 125 175 175 175C 205 230 230 515 515 515D 138 200 200 240 240 240Weights [kg]nominal diameter DN (clamping flanges)25 40 50 65 80 1002.5 6.5 6.5 26 26 26Special designs on request.The pressure has always been indicated as overpressure.Mankenberg reserves the right to alter or improve the designs orspecifications of the products described herein without notice. Dimensional Drawing Recommended Installation1 Strainer 5 Pressure Gauge2 Shutoff valves 6 Leakage Line G 1/83 Pressure Reducer (option)4 Safety Valveuse MANKENBERG-Products 2 / 2