
MFC/MFM - 29
english
Select the available fluidic connections to match the maximum flow rate. Intake
sections are not required. If necessary, we can also supply special sizes,
whereby the dimensioning of the fluidic system with regard to flow and pressure
drop must be taken into account.
Mechanical and fluidic installation
Fluidic connections
The proportional valve integrated into the MFC assumes the tight-closure function,
so that an additional isolation valve is not required in the medium circuit. If for
safety reasons, however, an additional isolation valve is placed before or after the
MFC, the drive sequence should be as follows:
Start
1. Connect pressure supply
2. Open isolation valve
3. Set MFC setpoint (normal control operation)
Shut-down
1. Set MFC setpoint to 0 %
2. Close isolation valve when process value of 0 % is reached
Any other sequence could result, on renewed opening of the isolation valve, even
with setpoint zero, in a short flow pulse or, on first setting of the setpoint, significant
overswing.
Operation with additional isolation valve
The device can on request also be supplied with screw-in joints already
assembled. Please select the matching fluidic connection from the table in Appen-
dix B.
Connections at MFC/MFM
Standard screw-in thread
Special screw-in thread
Sub
base
Types
G 1/4" G 3/8" G 1/2" G 3/4" NPT 1/4 NPT 3/8 NPT1/2 NPT3/4
8626
8006
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
8716
8706
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
8713
8703
X
X
X
X
X
X
8712
8702
X
X
X
X
X
X
8711
8701
X
X
X
X
X
X
8710
8700
X
X
X
X
X
X
Содержание 8006 Series
Страница 26: ...26 MFC MFM english Fig Type 8712 8702 MASS FLOW CMOSens Fig Type 8713 8703 MASS FLOW CMOSens ...
Страница 27: ...MFC MFM 27 english Fig Type 8716 8706 MASS FLOW INLINE with standard sensor body ...
Страница 74: ...74 MFC MFM deutsch Bild Typ 8712 8702 MASS FLOW CMOSens Bild Typ 8713 8703 MASS FLOW CMOSens ...
Страница 75: ...MFC MFM 75 deutsch Bild Typ 8716 8706 MASS FLOW INLINE mit Standard Sensorblock ...
Страница 122: ...122 MFC MFM français Figure Type 8712 8702 MASS FLOW CMOSens Figure Typ 8713 8703 MASS FLOW CMOSens ...
Страница 123: ...MFC MFM 123 français Figure Type 8716 8706 MASS FLOW INLINE avec corps de capteur standard ...
Страница 148: ...The smart choice of Fluid Control Systems www buerkert com ...