Fisher 1290 User Manual

Type 1290
3
Principle of Operation
The Type 1290 vapor recovery regulator serves as
a vessel vapor recovery system. The Type 1290
regulator controls vessel blanketing gas pressure
when the vessel is being lled with uid or when
ambient temperature causes the vapor gas to expand.
The system monitors the increasing blanket pressure
and throttles open to pass excess blanketing gas into
a vapor recovery system thus controlling the desired
set pressure of the vessel.
CAUTION
The Type 1290 is used as part of the
gas blanketing system to control the
outow of blanketing gas under normal
conditions and to collect vessel vapors
for the vapor recovery system. It is not
an ASME safety relief device. You should
provide alternate methods of emergency
overpressure protection.
ATMOSPHERIC PRESSURE
INTERMEDIATE PRESSURE
VACUUM PRESSURE
TANK PRESSURE
LOADING PRESSURE
Figure 2. Operational Schematic
TYPE EGR
MAIN VALVE
VAPOR RECOVERY
VACUUM SOURCE
CONTROL LINE
A
E
D
C
B
TYPE T208P PILOT
SETPOINT
ADJUSTMENT
EXHAUST LINE
VAPOR PRESSURE
TANK
TYPE M95H SUPPLY
REGULATOR
E0063
FIXED
RESTRICTION
INTERMEDIATE PRESSURE
TANK PRESSURE
VACUUM PRESSURE
LOADING PRESSURE
ATMOSPHERIC PRESSURE
TYPE 1098
ACTUATOR
PILOT TYPE
MAXIMUM INLET PRESSURE
SPRING COLOR
Type EGR Main Valve with Green Spring
NPS 1 / DN 25 NPS 2 / DN 50 NPS 3 / DN 80 NPS 4 / DN 100
NPS 6, 8 x 6 or
12 x 6 / DN 150,
200 x 150 or 300 x 150
psig bar psig bar psig bar psig bar psig bar
T208PL 5.5 0.38 5.0 0.35 4.0 0.28 3.0 0.21 3.5 0.24 Black
T208P
5.5 0.38 5.0 0.35 4.0 0.28 3.0 0.21 3.5 0.24 Orange
5.5 0.38 5.0 0.35 4.0 0.28 3.0 0.21 3.5 0.24 Red
6.5 0.45 6.0 0.41 5.0 0.35 4.0 0.28 4.5 0.31 Olive Green
7.5 0.52 7.0 0.48 6.0 0.41 5.0 0.35 4.5 0.31 Yellow
8.5 0.59 8.0 0.55 7.0 0.48 6.0 0.41 5.5 0.38 Light Green
11.5
(1)
0.79
(1)
11.0
(1)
0.76
(1)
10.0 0.69 9.0 0.62 8.5 0.59 Light Blue
12.5
(1)
0.86
(1)
12.0
(1)
0.83
(1)
11.0
(1)
0.76
(1)
10.0 0.69 10.5
(1)
0.72
(1)
Black
1. For Fluorinated Ethylene Propylene (FEP) Pilot Diaphragm, the maximum inlet pressure is 10 psig / 0.69 bar.
Table 2. Maximum Inlet Pressures (Type EGR Main Valve)

Fisher 1290 Specifications

General

Brand	Fisher
Model	1290
Category	Controller
Language	English