Emerson American Fisher Model 64-35 High Pressure LPG Regulator
64 Pressure Reducing Regulator
64 Series adjustable high-pressure propane regulators offer a wide
range of available pressure ranges. High-pressure regulators
usually reduce tank pressure to an intermediate pressure for use by
another regulator. They may be used as high-pressure regulators on
distribution systems when used in conjunction with first-stage
downstream regulators.
When equipped with an internal relief valve (64SR Series), the
regulator may be used as a final-stage regulator on high-pressure
systems. It may also be used as a first-stage regulator when set at
10 psig / 0.69 bar or less.
64 Series has a special Polytetrafluoroethylene (PTFE) diaphragm
protector that makes it suitable for anhydrous ammonia (NH3) service. The 1/4-inch FNPT tapped and plugged side outlet can be
used to install a pressure gauge or a hydrostatic relief valve.
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.
