Pressure Relief Valve Technical Specifications; General Data - Emerson Tescom WegaMed Instructions D'utilisation

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8.1.2.2 Continually adjustable flow outlet

Flow setting range: ........... 0.027 – 32 l/min *)

(depending on the gauge head)

Accuracy of appliances at max. flow ≤ 2 l/min: ±2.5% of the end scale value

Accuracy of appliances at max. flow > 2 l/min: ±10% of the displayed value

8.1.3 Pressure regulator for test gas mixture

Version

Inlet pressure range

2.1 bar

0.52 to max. 20 MPa

3 bar

0.7 to max. 20 MPa

4 bar

0.9 to max. 20 MPa

5 bar

1.1 to max. 20 MPa

7 bar

1.5 to max. 20 MPa

*) at minimum inlet pressure (0.52 / 1.1 / 1.5 MPa) and nominal flow

Due to the design of the appliance, the outlet pressure increases linearly as the inlet

pressure decreases (approx. 150 kPa (1.5 bar) at 200 MPa to 1.1 MPa (20 bar to 11 bar)).

The actual outlet pressure is determined by the flow rate and the instantaneous inlet

pressure (see Section "Flow curves").

The flow rate is also dependent upon the composition of the gas mixture. For

gas mixtures with an air component lower than 90% or without air component,

contact the test gas manufacturer for the conversion factor to air.

Any downstream flow control unit must be suitable for the test gas mixture used.

8.2