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3 ft / 0.91 m
T14446-A2
TYPE
RJ622
RJ642
RJ652
RJ622E
RJ652E
Types RJ622E and RJ652E regulators
are not suitable for indoor installations.
Never use a Type RJ622E or RJ652E
(pounds-to-pounds) regulator on low
pressure (inches of water column)
service because personal injury or
property damage could occur. The Types
RJ622E and RJ652E are not suitable for
use as a "first stage" regulator.
General Installation Instructions
Before installing the regulator:
• Check for damage, which might have occurred
in shipment.
• Check for and remove any dirt or foreign material,
which may have accumulated in the regulator body.
• Replace old pigtails. Blow out any debris, dirt or
copper sulfate in the copper tubing and the pipeline.
• Apply pipe compound to the male threads of the
pipe before installing the regulator.
• Make sure gas flow through the regulator is in the
same direction as the arrow on the body. "Inlet" and
"Outlet" connections are clearly marked.
Figure 2. Regulator with Vent Pointed Down
Table 1. Relief Valve Specifications
NOMINAL RELIEF VALVE
TYPICAL SETPOINT
START-TO-DISCHARGE
psig
bar
11 in. w.c.
27 mbar
2
0.14
MAXIMUM INLET PRESSURE TO NOT EXCEED
psig
bar
psig
3
1
69 mbar
50
3.5
0.24
50
Installation Location
• The installed regulator should be adequately
protected from vehicular traffic and damage from
other external sources.
• Install the regulator with the vent pointed vertically
down, see Figure 2. If the vent cannot be installed
in a vertically down position, the regulator must
be installed under a separate protective cover.
Installing the regulator with the vent down allows
condensation to drain, minimizes the entry of
water or other debris from entering the vent and
minimizes vent blockage from freezing precipitation.
• Do not install the regulator in a location where
there can be excessive water accumulation or ice
formation, such as directly beneath a down spout,
gutter or roof line of building. Even a protective
hood may not provide adequate protection in
these instances.
• Install the regulator so that any gas discharge
through the vent or vent assembly is over
3 ft / 0.91 m horizontally from any building opening
below the level of discharge.
• Install the regulator high enough above ground
level at least 18 in. / 45 cm so that rain splatter
cannot freeze in the vent.
RJ600 Series
OUTLET PRESSURE WITH DISC REMOVED
Inlet Pressure
Maximum Outlet Pressure
bar
psig
3.4
2
3.4
5
VENT POINTED DOWN
bar
0.14
0.34
3
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