Emerson Fisher Type 1098-EGR Pressure Reducing Regulators
High Flow Rate Fisher Gas Regulator 1098-EGR Pressure Reducing
Regulator
For Corrosive Environments And Oxygen Service
Fisher Type 1098-EGR pressure gas regulator provide economical and
accurate pressure control in a wide variety of applications;
natural gas distribution systems; fuel gas supply to industrial
boilers, furnaces, ovens, and mixers; and large commercial /
industrial establishments such as shopping centers and schools.
They are also used in plant air service and in liquid service.
Table 1. Outlet Pressure Ranges and Spring Selection
| Outlet Pressure Range (PSI/BAR) | Spring Part Number | Spring Color |
3 to 15(0,21 to 1,03)
3 to 20(0,21 to 1,38)
5 to 35(0,34 to 2,41)
30 to 60(2,07 to 4,14)
35 to 100(2,41 to 6,90)
80 to 150(5,52 to 10,3) | 1D892327022
1D751527022
1D665927022
1D745527142
1E543627142
1P901327142 | Red
Silver
Blue
Green
Yellow
Brown |
1. All springs can be backed off to 0 psig (0 bar). For the highest
capacity and most accurate control, use the lowest-range spring
that can be adjusted to the required setpoint.
2. C Cannot be used in anhydrous ammonia (NH3) applications. |
Features
Versatility
Body Side Connection
Easy Maintenance
UL Listed
Specifications
Body Size and End Connection Style
End: 1/2-inch NPT
Gauge Outlet: 1/4-inch NPT
Maximum Inlet Pressure
250psi /17.2Bar
Spring Range
5~35psig (0.34~2.41bar)
Pressure Registration
Internal
Temperature Capabilities
-20º to 150ºF / -29º to 66ºC
The Type 64R has an integral low-capacity relief valve. The valve
stem seats against a drilled hole in the diaphragm plate.
If the reduced pressure should exceed the set pressure, the
diaphragm lifts off the valve stem so that a limited amount of
excess pressure can flow into the spring case and bleed out through
a screened vent.
Fisher 64 Series regulator is also available with a handwheel. An
optional handwheel is available for panel mounting.
1. Use qualified personnel when installing, operating, and
maintaining these regulators. Before installation inspect for
damage.
Make sure there is not any foreign material in the regulator and
all tubing and piping are clean and unobstructed.
2. If installing the regulator at an outside location, point the
spring case vent in the downward direction to protect it from
getting plugged or from collecting moisture, corrosive chemicals,
or other foreign materials. Spring case vent orientation
may be changed by rotating the spring case with respect to the
regulator body.
3. Install the regulator so that flow is from the IN to OUT
connection as marked on the regulator body.
4. To remotely vent the spring case, remove the screen, if present,
and connect 1/4-inch NPT piping or tubing to the spring
case connection. The piping or tubing should vent the spring case
to a safe location, have as few bends as possible, and
have a screened vent on its exhaust end that is weather resistant
and always pointed in the downward direction.
5. Like most regulators, 64 Series regulators have outlet pressure
ratings lower than inlet pressure ratings. Although types
with internal relief include limited downstream overpressure
protection, all types may require additional relief protection for
some service conditions if the actual inlet pressure can exceed the
regulator outlet pressure rating or the pressure ratings
of any downstream equipment. Inspect a regulator periodically and
after any overpressure condition.
6. Each regulator is factory-set for the pressure setting specified
on the order. If no setting is specified, outlet pressure is
factory-set at the midrange of the control spring.
