Cylinder station HP 257 2x1 cylinder bundle dual stage with automatic changeover for high flow TECHNICAL DETAILS APPLICATION AREA DESCRIPTION QUALITY STANDARD Rathenaustraße 55 63263 Neu Isenburg Phone 49 6102 7883 70 Fax 49 6102 7883 40 www hornung org info hornung org E10 02 37 dated 03 2013 Body stainless steel 1 4404 electropolished or brass nickel and matt chrome plated Seat PCTFE Diaphragm 1 4435 Leakage rate 10 8 mbar l s He Gas purity 6 0 Max inlet pressure 300 bar Outlet pressure 0 1 1 7 0 1 3 5 ranges 1 7 1 12 1 17 bar Cv value 1 05 Operating temp 20 C to 70 C Gauges inlet gauge outlet gauge Dimensions wxhxd 135 x 125 x 130 mm Weight 4300 g Connections NPT 3 8 f NPT 1 2 f Especially for gases with high requirements on purity up to 6 0 safety and density for which an uninterrupted supply overnight and weekends must be guaranteed The supply concept can be optimised by op tions such as contact gauges and gas alarm boxes see segment 7 Through our special cleaning system our pressure regulators are suitable for ECD applications The HP 257 is a dual stage panel for central gas supply with automatic changeover It serves the safe supply of high purity and mixed gases from 2 single cylinders or cylin der bundles The changeover sets in as soon as the pressure in the first side sinks below a predetermined level This process is controlled by two installed regulators which are connected by their out lets Two stage regulators will be used when a stable outlet pressure is required The station is mounted on a stainless steel console and in standard version it consists of three pressure regulators and the in and out let gauges Special characteristics The HP 257 is a high flow changeover station for cylinders or bundles The company Hornung is certified to DIN EN ISO 9001 and ISO 14001 2009 All single parts are manufactured assembled and tested by in house production The finished parts are therefore under all criteria of German quality control with 100 final inspection Compression fittings optional

Vorschau Catalogue for high purity gas control equipment - Hornung GmbH (05-2021) Seite 66
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