KST – KROMSCHRÖDER SYSTEM TECHNOLOGY

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Gas inlet sections

overview

Gas safety train

No measurement, No pressure control, No tightness control, No SSV/RV, Not calibratable, 1 stream, 2 valves
Flowchart No.: 1.1.2.1.1
Standard: EN 746-2

No. Component description Standards and Docuthek
010 Manual isolating valve, e.g. manual valve AKT
020 Filter, e.g. gas filter GFK

Our tip: at maximum flow rate, filters should show a pressure loss of no more than 10 mbar.

030-040 Pressure gauge, e.g. pressure gauge with capsule element KFM or pressure gauge with Bourdon tube RFM with pressure gauge valve DH or MH
050 Low-pressure cut-off, e.g. pressure switch for gas DG

The min. pressure switch setpoints to be adjusted depend on the installation location and the process conditions.

Our tip: pressure switches should be installed preferably with horizontal or vertical diaphragm. Ensure that no dirt or moisture can penetrate the open ventilation ports.

060 High gas pressure protection, e.g. pressure switch for gas DG

The max. pressure switch setpoints to be adjusted depend on the installation location and the process conditions.

Our tip: pressure switches should be installed preferably with horizontal or vertical diaphragm. Ensure that no dirt or moisture can penetrate the open ventilation ports.

070 Automatic shut-off valve, e.g. solenoid valves for gas VAS

 

Application

Main gas train to EN 746-2. This is a part of the gas distribution system of the industrial thermoprocessing equipment (IThE), e.g. for downstream multiple burner systems.

Function

If the main shut-off valve (010) is open, the gas flows through the filter (020). Any dirt in the gas or pipe system will be retained.

The automatic shut-off valve (110) is part of the protective system, as are the low-pressure cut-off (090) and the high gas pressure protection device (100). These compulsory safety devices are actuated separately by the process control system. In the case of insufficient or excessively high gas flow, the process control system will receive a signal and shut off the gas supply safely by closing the valve (110). Another valve, which must be installed directly upstream of the burner, will also be closed.
The inlet and outlet pressure will be displayed on the pressure gauges (030/040).

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