Fisher R232 Operating Manual
Instruction Manual
MCK 2156
November 2015
LP-Gas Regulators
R122H, R222H, R222, R232A and R232E Series
Instruction Manual
WARNING
!
Failure to follow these instructions or
to properly install and maintain this
equipment could result in an explosion
and/or re causing property damage and
R122H, R222H, R222, R232A and R232E Series
personal injury or death.
Fisher® equipment must be installed,
operated and maintained in accordance
with federal, state and local codes and
Fisher instructions. The installation in most
states must also comply with NFPA No. 54
and 58 standards.
Only personnel trained in the proper
procedures, codes, standards and
regulations of the LP-Gas industry should
install and service this equipment.
Type R232A
Type R222H
Type R122H
Things to tell the gas customer:
1. Show the customer the vent or vent assembly or vent
tube. Stress that this opening must remain unobstructed
at all times. Tell the customer to check the vent opening
after a freezing rain, sleet storm or snow to make sure
ice has not formed in the vent.
2. Show the customer the shutoff valve on the
container. The customer should close this valve
immediately if gas is smelled, appliance pilot lights
fail to stay on or appear higher than usual or any
other abnormal situation occurs.
3. Tell the customer to call your company to service the
regulator if the regulator vents gas or a leak develops
in the system. Only a qualied gas service person
should install or service the regulator.
4. Tell the customer to call your company to have a
leak check performed if the gas supply has been
shutoff or interrupted for any reason. A leak check
must be performed by a qualied gas service person
on the piping system immediately after turning on
the gas supply.
Type R222
Figure 1. R122H, R222H, R222, R232A and
R232E Series Regulators
Type R232E
Introduction
Scope of the Manual
This Instruction Manual covers installation and maintenance
for the R122H, R222H, R222, R232A and R232E Series
regulators, which includes rst stage, second stage, integral
two-stage and integral two psig service regulators used on
LP-Gas vapor service applications. They are not to be used
on liquid service.
www.fisherregulators.com
D450141T012
R122H, R222H, R222, R232A and R232E Series
LP-Gas Regulators
Specications
Specications and Tables 1 and 2 list the specications for these regulators. Contact the factory if the regulator is to be
used on any service other than LP-Gas, natural gas or air. The following information is located on the spring case: type
number, orice size, spring range and date of manufacture.
Pressure Taps Size Restriction
1/8 NPT: #54 / 0.055 in. Drill on outlet and inlet
Orice Sizes
R122H Series: 0.15 in. / 3.8 mm
R222 Series: 0.14 in. / 3.6 mm
R232A, R232E and R222H Series: 0.193 in. / 4.9 mm
Wide Open Cg for Relief Sizing
R122H Series: 23
R222 Series: 18
R232A and R232E Series: 19
R222H Series: 37
Maximum Allowable Inlet Pressure
R122H, R222H, R232A and R232E Series:
250 psig / 17.2 bar
R222 Series: 10 psi / 0.69 bar
Maximum Emergency Inlet Pressure
R122H, R222H, R232A and R232E Series:
250 psig / 17.2 bar
R222 Series
Fisher® Types R122H, R222H or R622H rst stage
regulator. 40 psi / 2.8 bar when used with any other
rst stage regulator.
Temperature Capabilities
R122H, R222H, R222, R232A and R232E Series:
-20 to 160°F / -29 to 71°C
Pressure Registration
Internal
1. In the event the R222 Series malfunctions during a Maximum Emergency Inlet Pressure condition these inlet pressures and the R222 Series relief performance will limit downstream
pressure to 2 psi / 0.14 bar or less.
2. Product has passed Fisher testing for lockup, relief start-to-discharge and reseal down to -40ºF / -40ºC.
(1)
: 75 psi / 5.2 bar when used with a
(2)
Outlet Pressure Standard Setpoint
R222H Series: 10 psi / 0.69 bar or 5 psi / 0.35 bar
R122H Series: 10 psi / 0.69 bar
R222 Series: Second Stage: 11 in. w.c. / 27 mbar
R232A Series: First Stage: approximately 9 psig /
0.62 bar at 100 psig / 6.9 bar, 50 SCFH / 1.42 Nm3/h
Second Stage: 11 in. w.c. / 27 mbar
R232E Series: First Stage: 9 psig / 0.62 bar at
100 psig / 6.9 bar, 50 SCFH / 1.42 Nm3/h
Second Stage: 2 psig / 0.14 bar
Outlet Pressure Spring Ranges
R222H Series: 8 to 11.9 psig / 0.55 to 0.82 bar or
4 to 6 psig / 0.28 to 0.41 bar
R122H Series: 10 psig / 0.69 bar +/- 1 psig / 0.07 bar
(non-adjustable)
R222 Series: Second Stage: 9.5 to 13 in. w.c. /
24 to 32 mbar
R232A Series: First Stage: non-adjustable
Second Stage: 10.2 to 13 in. w.c. / 25 to 32 mbar
R232E Series: First Stage: non-adjustable
Second Stage: 1 to 2.2 psig / 0.07 to 0.15 bar
Approximate Weights
R222H Series with POL: 2.12 lbs / 961.8 g
R222H Series with NPT tting: 1.73 lbs / 784.8 g
R122H Series: 1.2 lbs / 544 g
R222 Series: 1.4 lbs / 635 g
R232A and R232E Series with POL:
1.9 lbs / 865 g
R232A and R232E Series with NPT tting:
1.5 lbs / 671 g
Description
Second Stage Low Pressure Regulator
The Type R222 second stage regulator provides low
pressure, inches of water column, delivery pressure. It
is set at 11 in. w.c. / 27 mbar pressure and comes with
a high capacity internal relief valve. The regulators are
painted PALM GREEN.
Integral Two-stage Regulator
The Type R232A integral two-stage regulator contains
a non-adjustable rst stage regulator on the inlet. The
second stage provides 11 in. w.c. / 27 mbar outlet
pressure. The second stage portion has a high capacity
internal relief valve construction. The rst stage does not
have an internal relief valve. The regulators are painted
GRAY with a BLACK CAP.
2
Integral Two psig Service Regulator
The Type R232E integral two psig service regulator
contains a non-adjustable rst stage regulator on the
inlet. The second stage provides 2 psig / 0.14 bar outlet
pressure. The second stage portion has a high capacity
internal relief valve construction. The rst stage does not
have an internal relief valve. The regulators are painted
GRAY with a WHITE CAP.
First Stage Regulators
Types R122H and R222H regulators are designed for
high pressure (pounds per square inch) vapor service.
These regulators have high capacity internal relief valves.
When used on rst stage service, the Type R122H regulator
reduces container pressure to approximately 10 psig /
0.69 bar inlet pressure to a second stage regulator. The
Type R222H regulator reduces container pressure to
R122H, R222H, R222, R232A and R232E Series
VENT POINTED DOWN
LP-Gas Regulators
3 FT. /
3
VENT POINTED DOWN
VENT POINTED DOWN
T14446-A2
Figure 2. Regulator with Vent Pointed Down
Table 1. Relief Valve Specications
NOMINAL RELIEF VALVE
START-TO-DISCHARGE
TYPE
TYPICAL SETPOINT
psi bar psi bar psig bar psig bar
R122H 10 0.69 16 1.10 250 17.2 Not Applicable
R222H
5 0.35 9 0.62
10 0.69 16 1.10
R222 11 in. w.c. 27 mbar 1 0.07 30 2.07 2.0 0.14
(1)
R232A
(1)
R232E
1. For integral two-stage regulators, the second stage disc is removed.
11 in. w.c. 27 mbar 1 0.07
2 0.14 3.5 0.24 5.0 0.35
MAXIMUM OUTLET PRESSURE WITH DISC REMOVED
Inlet Pressure Maximum Outlet Pressure
250 17.2 Not Applicable
250 17.2
0.9 m
2.0 0.14
Table 2. Capacity, Connection Sizes and Vent Orientation
REGULATOR
APPLICATION
TYPE
NUMBER
CAPACITY
BTU/HR
PROPANE
(1)
INLET
CONNECTION
OUTLET
CONNECTION
First Stage R122H-AAJ 1,100,000 1/4 in. FNPT 1/2 in. FNPT 10 psig / 0.69 bar Over Outlet
R222H-BGK 1,700,000 1/2 in. FNPT 1/2 in. FNPT
R222H-DGK 2,000,000 3/4 in. FNPT 3/4 in. FNPT
R222H-HGK 1,700,000 FPOL 1/2 in. FNPT
First Stage
R222H-JGK 1,875,000 FPOL 3/4 in. FNPT
R222H-BGJ 1,800,000 1/2 in. FNPT 1/2 in. FNPT
R222H-DGJ 2,000,000 3/4 in. FNPT 3/4 in. FNPT
R222H-HGJ 1,800,000 FPOL 1/2 in. FNPT
R222H-JGJ 1,875,000 FPOL 3/4 in. FNPT
Second Stage
Integral
Two-Stage
Integral Two psig
Service
1. Capacities Based on:
Second Stage: 10 psig / 0.69 bar with 2 in. w.c. / 5 mbar droop.
Integral Two Stage: 30 psig / 2.07 bar and 2 in. w.c. / 5 mbar droop.
Integral Two psig Service Regulator: 30 psig / 2.07 bar inlet pressure and 20% droop.
First Stage: 30 psig / 2.07 bar inlet pressure and 20% droop.
2. Also available with vent opposite gauge taps.
3. Integral First Stage Vent size: 7/16-24 UN thread for 1/4 in. OD copper tube inverted are tting.
R222-BAF
R222-BAFXA Over Outlet
R232A-BBF
R232A-HBF FPOL
R232A-BBFXA
R232A-HBFXA FPOL
R232E-BBH
R232E-HBH FPOL
650,000 1/2 in. FNPT 1/2 in. FNPT
550,000
550,000
500,000
1/4 in. FNPT
1/4 in. FNPT
1/4 in. FNPT
1/2 in. FNPT
1/2 in. FNPT
1/2 in. FNPT 2 psig / 0.14 bar
OUTLET
PRESSURE
SETTING
5 psig / 0.35 bar
10 psig / 0.69 bar
11 in. w.c. /
27 mbar
3/8 IN. FNPT SCREENED VENT
STANDARD LOCATION
Over Outlet
Over Inlet
First Stage
Second Stage: Over Outlet
First Stage: Opposite Gauge Taps
Second Stage: Opposite Gauge Taps
First Stage
Second Stage: Over Outlet
(3)
: Down
(3)
: Down
(2)
3
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