Brooks Instrument Full-View 1110 Manual De Instalación Y Funcionamiento página 22

Section 3 Operation
®
Brooks 1110 and 1140 Series
3-2
WARNING
GLASS TUBE EXPLOSION HAZARD
Protective sleeve must remain over glass tube.
(Meter sizes 7 - 13 only)
Fasten meter windows securely.
Failure to comply could result in serious personal
injury or property damage.
To initiate flow through a flowmeter using bypass piping, refer to Figure 3-1.
1. Close flowmeter isolation valves (A) and (B).
2. Fully open bypass valve (C) and slightly open control valve (D).
3. Initiate process flow. When flow has stabilized, fully open isolation valve
(B), then slowly open isolation valve (A) fully.
4. Close bypass valve (C).
5. Regulate process flow using control valve (D).
6. If meter is left in bypass configuration, open drain valve (E) to prevent
tube damage caused by thermal expansion of the process liquid.
HORIZONTAL
LINE
FLOWMETER
A
E
A - Inlet Valve
D - Control Valve
Figure 3-1 Typical Bypass Installation
Installation and Operation Manual
Part Number: 541B040AAG
VERTICAL
LINE
FLOWMETER
B
D
C
B - Outlet Valve
E - Drain Valve
X-VA-1110-1140-eng
September, 2012
D
B
C
A
E
C - Bypass Valve