Type 399A-161-112
2
Table 1. Specifications
Type 399A Main Valve Body Sizes, End Connec-
tion Styles, and Ratings
(1)
See table 2
Maximum Inlet Pressures and Pressure Drops
(1)
Type 399A Main Valve: See table 2
161 Series Pilots: See tables 3 and 6
Type 112 Restrictor: 1500 psig (103.4 bar)
Outlet (Control) Pressure Ranges
See table 3
Diaphragm Pressure Differentials
See table 5
Main Valve Flow Direction
Up through cage port and out through cage slots
Approximate Proportional Bands
See table 3
Material Temperature Capabilities
(1)
See table 4
Pilot and Restrictor Connections
See table 3
Pilot Spring Case Vent
Type 161, 161M, 161H, 161HM, 161EB, 161EBM,
161EBH or 161EBHM: 1/4-inch NPT female with
removable Type Y602-12 vent assembly
Type 161Y or 161YM: 1/4-inch NPT female with
removable Type Y602-11 vent assembly
Shipping Weights (including Pilot and Restrictor)
See table 7
1. The pressure/temperature limits in this manual and any applicable standard or code limitation for valve should not be exceeded.
IntrIntroductionoduction
Scope of Manual
This instruction manual provides installation, mainte-
nance, and parts ordering information for the Type
399A Easy Joe
R
pressure-reducing regulator com-
plete with Type 112 restrictor and Type 161, 161M,
161Y, 161YM, 161H, 161HM, 161EB, 161EBM,
161EBH, or 161EBHM pilot. Any accessories used
with this regulator are covered in other manuals.
Product Description
The Type 399A pressure-reducing regulator for air or
gas service (figure 1) includes a Type 112 restrictor
and a 161 Series pilot. The fabric-reinforced main
valve diaphragm moves in response to the pilot load-
ing pressure to control downstream pressure. Shutoff
(lockup) is achieved by applying full inlet pressure to
the loading chamber to close the diaphragm against
the slotted cage.
Descriptions of the pilot configurations covered in this
instruction manual are as follows:
Type 161—Downstream pressure range from 5 to 300
psig (0.34 to 21 bar). Pilot bleed exhausts downstream
through the sense (control) line.
Type 161M—Downstream pressure range from 5 to
300 psig (0.34 to 21 bar). A static sensing (control)
line is isolated from pilot bleed (exhaust). The Type
161M is used in working monitor and other applica-
tions that require a sensing line isolated from pilot
bleed (exhaust).
Type 161Y—Downstream pressure range from 5 in-
ches of water column (w.c.) to 7 psig (12 mbar to 0.48
bar). Pilot bleed exhausts downstream through the
sense (control) line. An internal relief valve is standard
to prevent internal damage during start-up or when
over-pressure conditions occur.
Type 161YM—Downstream pressure range from 5
inches of water column (w.c.) to 7 psig (12 mbar to
0.48 bar). A static sensing (control) line is isolated
from pilot bleed (exhaust). The Type 161YM is used in
working monitor and other applications that require a
sensing line isolated from pilot bleed (exhaust). An
internal relief valve is standard to prevent internal
damage during start-up or when over-pressure condi-
tions occur.
Type 161H and 161HM—The Type 161H (pressure
reducing pilot) and 161HM (monitor pressure reducing
pilot for working monitor or separate bleed applica-
tions) are a modification of the Type 161 and 161M
pilots with increased setpoint capabilities (250 to 600
psig/17.2 to 41.4 bar) for the Type 399A or for other
appropriate applications. The modification utilizes a
standard Type 161/161M pilot spring, spring case, and
body incorporating a reduced diaphragm area by the
addition of a diaphragm limiter and a new diaphragm
subassembly. The Type 161H/161HM is only available
in a stainless steel construction.
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