Fill-rite TS SS F & W Precision Meter Bedienungsanleitung PDF herunterladen (Seite 7)

Start-Up & Operation

Very slowly fill the system with liquid, to avoid operating the

flow meter on air or vapor. This can be accomplished in the

following manner:

1. Throttle the meter inlet valve, and allow the system to fill

slowly by gravity.

2. Crack open the outlet valve. Start the pump, and then

slowly crack open the inlet valve, filling the meter slowly

before fully opening the inlet and outlet valves.

In normal operations:

 Avoid sudden changes in temperature.

 Avoid sudden changes in flow rate.

 Gradually increase or decrease the flow rate.

1 . 7

Installation continued & Start-Up/Operation

 In critical installations a by-pass line is recommended,

so flow can continue while flow meter is being serviced.

 When an Air Eliminator is included in the flow meter

assembly, the strainer/air eliminator must be in horizontal

position, since the air eliminator operates on a gravity

principle. A few drops of liquid may be expelled when the

air eliminator vents, so vent ports should be piped back to

storage or to a collection tank (sloping towards the tank).

 Thermal relief valves are recommended, and should be

installed whenever it is possible to block (isolate) the flow

meter between two valves. The pressure rise in a closed

system, from just a few degrees increase in temperature,

can be many times normal working pressure.

 Connections for calibration should be provided during

installation. An easy means for diverting flow into a cali-

bration vessel (or master meter) should be considered.

Refer a diagram for the suggested installation is shown

below.

TRV protects portion of system, which can be

isolated between valves IV1, CV1 & IV2.

Calibration Connection valves

Therm al Relief valve

IV1 & IV2:

V1 & CV2:

BPV :

TRV:

BY-PASS LINE

IV1 IV2

: IV2 & BPV closed, other valves open

TRV

: IV1 & IV2 closed (by-pass open)

During Calibration



: BPV, CV1 & CV2 closed

TEMPORARY MASTER METER

CV2

OPERATING FLOW M ETE



Normal Operation

BPV

Service/Maintenanc

CV1

Isolation Valves

By-Pass valve

(or Prover Tank)

OPTIONAL

The optimum flow meter installation

should include the components and

features shown in this diagram.

1 2 3 4 5 6 7 8 9 10 11 12 ... 27 28

Kommentare zu diesen Handbüchern

Keine Kommentare

Fill-rite TS SS F & W Precision Meter Bedienungsanleitung Seite 7

Kommentare zu diesen Handbüchern

Verwandte Produkte und Handbücher für Ausrüstung Fill-rite TS SS F & W Precision Meter