Pressure Control Valves Pressure Reducing Valves DM 701 www.mankenberg.de | Tel. +49 (0) 451 - 8 79 75 0 Valve for High Pressures for Small Flow Rates Technical Data Connection DN Nominal Pressure PN Inlet Pressure Outlet Pressure Kvs-Value Temperature Medium 15 - 50 315 up to 160 bar 0.5 - 40 bar 0.2 - 5.5 m3/h 500 °C steam 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. MANKENBERG GmbH | Spenglerstraße 99 | D-23556 Lübeck The DM 701 pressure reducing valve is a piston controlled, spring loaded proportional control valve for small capacities with small pressure drops. The valve cone is fitted with a metallic seal. 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). 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 » open spring » sense line connection Page No. DM 701/2.1.122.1 - Standing 07.09.2012 Options » mid section for higher temperatures (400 - 500 °C) » various diaphragm and seal materials suitable for your medium » 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] seat nominal diameter DN 15 20 I 0.2 0.25 II 0.9 0.9 III 1.8 2 25 0.25 0.9 2.2 32 0.4 2.5 3.9 40 0.4 2.5 3.9 50 1 3.5 5.5

Pressure Control Valves Pressure Reducing Valves DM 701 MANKENBERG GmbH | Spenglerstraße 99 | D-23556 Lübeck www.mankenberg.de | Tel. +49 (0) 451 - 8 79 75 0 Valve for High Pressures for Small Flow Rates Materials PN 16 Temperature Body Bottom Part Spring Internals Piston O-Ring NBR or EPDM Materials PN 25 - 40 Temperature 300°C Body cast steel Bottom Part cast steel Mid Section Spring spring steel C Internals on request Piston O-Ring NBR or EPDM Materials PN 63 - 315 Temperature 350°C Body C 22 N Bottom Part cast steel Mid Section Spring Internals Piston O-Ring Dimensional Drawing 300°C cast...