Self-operated Pressure Regulators Pressure Reducing Valve Type 2407 Application Pressure reducing valve for set points from 5 mbar to 1000 mbar • Valves with flanged body DN 15 and DN 25 as well as with female thread G /, G % and G1 • Nominal pressure PN 25 • Suitable for gases at temperatures from -20 to +60 °C (0 to 150 °C)1 This regulator is used to control the pressure of flammable gases used as a source of energy, e.g. in boilers, driers, vaporizers, heat exchangers or industrial ovens. Alternatively, it can control the compressed air supply in process engineering applications. An additional application of the regulator is the pressure control of inert gas used for inerting or blanketing reaction or storage tanks to protect the product in the tank from oxidation, explosion or escaping. To achieve an economical consumption of the inert gas, its pressure must be controlled to always remain slightly higher than atmospheric pressure while the tank is being filled or emptied. Special features • Low-maintenance proportional regulators • Compact regulator design providing excellent control accuracy • Internal set point springs with set point adjustment using a nut on the actuator • Spring-loaded, single-seated valve • Connection G ^ for control line • Fulfills stricter fugitive emission requirements (TA-Luft) • Min. leakage class IV • Suitable for vacuum Versions Valve in G /, G 3A and G 1, DN 15 and DN 25 • Soft-seated plug • Body made of stainless steel 1.4408 or spheroidal graphite iron EN-JS1049 Special versions • Version with FDA-compliant materials for food processing and pharmaceutical industries • Version to comply with NACE (sour gas) 1) Version with soft seal and diaphragm made of FPM for air and nitrogen Associated Information Sheet Fig. 1 • Type 2407 Pressure Reducing Valve T 2500 EN Edition February 2012 Data Sheet

Principle of operation The medium flows through the valve as indicated by the arrow. The position of the valve plug and the area released between the plug (3) and seat (2) determine the flow rate. In the pressureless state (control line not connected and no pressure applied) the valve is opened by the force of the set point springs (9). The downstream pressure p2 to be controlled is tapped downstream of the valve and transmitted over an external control line to the actuator where it is converted by the operating diaphragm (7) into a positioning force. This force is used to move the valve plug...

Table 1 • Technical data ■ All pressures stated as gauge pressure in bar

Type 2407 ■ Stainless steel body with screwed ends Type 2407 ■ Flanged body made of spheroidal graphite iron Table 3 • Dimensions in mm and weights in kg Fig. 4 • Dimensional drawings of Type 2407 Ordering text Pressure Reducing Valve Type 2407 Nominal size DN ..., thread size G ..., Set point range ... mbar, Kys coefficient ... Body material ... Optionally, special version Material: Plug sealing ..., operating diaphragm ... Specifications subject to change without notice. SAMSON AG ■ MESS- UND REGELTECHNIK WeismullerstraBe 3 ■ 60314 Frankfurt am Main ■ Germany Phone: +49 69 4009-0 ■ Fax: +49...