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R122H, R222, R232A, and R232E Series

LP-Gas Regulators

Specications

Specications and Tables 1 and 2 list the specications 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, orice size, spring range, and date of manufacture.

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-inches 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.

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

Type R122H 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. On nal

stage service the regulator reduces container pressure for a

high pressure burner. The regulator is painted RED.

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.

Pressure Taps Size Restriction

1/8 NPT: #54 / 0.055-inch Drill on outlet and inlet

Orice Sizes

R122H Series: 0.15-inch / 3.8 mm

R222 Series: 0.14-inch / 3.6 mm

R232A and R232E Series: 0.193-inch / 4.9 mm

Wide Open C

for Relief Sizing

R122H Series: 23

R222 Series: 18

R232A and R232E Series: 19

Maximum Allowable Inlet Pressure

R122H, R232A, and R232E Series:

250 psig / 17.2 bar

R222 Series: 10 psi / 0.69 bar

Maximum Emergency Inlet Pressure

R122H, R232A, and R232E Series:

250 psig / 17.2 bar

R222 Series

(1)

: 75 psi / 5.2 bar when used with a

Fisher

Type R122H or R622H rst stage regulator.

40 psi / 2.8 bar when used with any other rst

stage regulator.

Temperature Capabilities

R122H, R222, R232A, and R232E Series:

-20 to 160°F / -29 to 71°C

(2)

Pressure Registration

Internal

Outlet Pressure Standard Setpoint

R122H Series: 10 psi / 0.69 bar

R222 Series: Second Stage: 11-inches w.c. / 27 mbar

R232A Series: First Stage: approximately 9 psig /

0.62 bar at 100 psig / 6.9 bar, 50 SCFH / 1.42 Nm

Second Stage: 11-inches w.c. / 27 mbar

R232E Series: 9 psig / 0.62 bar at 100 psig /

6.9 bar, 50 SCFH / 1.42 Nm

Second Stage: 2 psig / 0.14 bar

Outlet Pressure Spring Ranges

R122H Series: 10 psig / 0.69 bar +/- 1 psig / 0.07 bar

(non-adjustable)

R222 Series: Second Stage: 9.5 to 13-inches w.c. /

24 to 32 mbar

R232A Series: First

Stage: non-adjustable

Second

Stage: 10.2 to 13-inches 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

R122H Series: 1.2 lbs / 544 grams

R222 Series: 1.4 lbs / 635 grams

R232A and R232E Series with POL:

1.9 lbs / 865 grams

R232A and R232E Series with NPT tting:

1.5 lbs / 671 grams

1 2 3 4 5 6 7 8

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