Pressure Reducing Valves DM 664
2Pages

Pressure Control Valves Pressure Reducing Valves DM 664 MANKENBERG GmbH | Spenglerstraße 99 | D-23556 Lübeck www.mankenberg.de | Tel. +49 (0) 451 - 8 79 75 0 Valve for Large Flow Rates Technical Data Connection DN Nominal Pressure PN Inlet Pressure Outlet Pressure Kvs-Value Temperature Medium 50 - 100 16 up to 16 bar 0.02 - 8 bar 32 - 100 m3/h 130 °C liquids and gases Description Medium-controlled pressure reducers are simple control valves offering accurate control while being easy to install and maintain. They control the pressure downstream of the valve without requiring pneumatic or electrical control elements. The DM 664 pressure reducing valve is a diaphragm-controlled spring-loaded and balanced proportional control valve for large volumes of non-hazardous media. This pressure reducer is manufactured from deep-drawn stainless steel featuring excellent corrosion resistance. The valve cone is fitted with a soft seal (up to 130 °C). The spring module comprising spring cap, spring, adjusting screw, diaphragm and internal components, is connected to the valve body only by means of a clamp ring and two bolts. Changing the diaphragm or the complete spring assembly for a different control pressure range is extremely simple and does not call for special tools. The same applies to servicing and maintenance. The outlet pressure to be controlled is balanced across the diaphragm by the force of the valve spring (set pressure). As the outlet pressure rises above the pressure set using the adjusting screw, the valve cone moves towards the seat and the volume of medium is reduced. As the outlet pressure drops the valve control orifice increases; when the pipeline is depressurised the valve is open. Rotating the adjusting screw clockwise increases the outlet pressure. The valves requires a sense line (to be installed on-site). Page No. DM 664/2.1.128.1 - Standing 18.09.2012 These valves are no shut-off elements ensuring a tight closing of the valve. In accordance with the VDI/VDE guideline 2174 a leakage rate of 0.05 percent of the constant volume flow is permitted for the valve in closed position. Standard » » » » all stainless steel construction quick-release body clamp ring sense line connection balanced cone for controlling the outlet pressure indipendently from the initial pressure Options » pressure gauge connection » for toxic or hazardous media: additional leakage line connection. Must be installed with a leakage line capable of draining leaking medium safely and without pressure » 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 request Operating instructions, know how and safety instructions must be observed. 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 DN 50 32 65 50 80 80 Setting Ranges [bar], Nominal Pressure PN 0.02 - 0.15 0.02 - 0.25 0.1 - 0.6 16/1 16/1 16/1 Setting Ranges [bar], Nominal Pressure PN 0.8 - 2.5 2-5 16/6 16/10 100 100 0.2 - 1.2 16/2.5 4-8 16/16

Pressure Control Valves Pressure Reducing Valves DM 664 Page No. DM 664/2.1.128.2 - Standing 18.09.2012 MANKENBERG GmbH | Spenglerstraße 99 | D-23556 Lübeck www.mankenberg.de | Tel. +49 (0) 451 - 8 79 75 0 Valve for Large Flow Rates Materials Temperature Body, Diaphragm Housing, Internals Spring Valve Seal Diaphragm O-Ring Dimensional Drawing 130 °C CrNiMo-steel CrNi-steel EPDM optional FPM or PTFE EPDM optional FPM EPDM optional FPM Dimensions [mm] setting range bar size nominal diameter DN 50 65 all ranges A 230 290 0.02 - 0.15 C 650 700 D 500 500 0.02 - 0.25 C 650 700 D 360 360 0.1 -...