Mooney Series 21 Regulator Instruction Manual | 3
Copyright 2021 Baker Hughes Company. All rights reserved.
Figure 2
Figure 3
Nameplate for Series 21, 21H, 21S, & 21HS
Mooney Regulators.
Figure 4
Spring Range Nameplate for Series 21 & 21S
Mooney Regulators.
Figure 5
Spring Range Nameplate for Series 21H & 21HS
Mooney Regulators.
Table 3
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Specifications
Series
Spring Range
Color
Part Number
21 & 21S
3 - 12 psi
(0.2 - 0.8 bar)
Red
040-014-01
10 - 40 psi
(0.7 - 2.7 bar)
Plated
040-011-01
25 - 90 psi
(1.7 - 6.2 bar)
Blue
040-012-01
60 - 200 psi
(4 - 14 bar)
Purple
040-008-01
100 - 260 psi
(7 - 18 bar)
Black
3
040-009-01
200 - 450 psi
(14 - 31 bar)
Green
3
040-020-01
21H & 21HS
200 - 520 psi
(14 - 36 bar)
Black
3
040-009-01
400 - 900 psi
(27 - 62 bar)
Green
3
040-020-01
3
Spacer on Adjustment Screw Required
Regulator Markings
(Refer to Figure 2)
Location of the Regulator nameplate.
Location of spring range nameplate. The factory marks
the nameplate to indicate which spring is installed at
manufacture date. If the spring is changed make sure to
note it on the nameplate.
The month and year the regulator is manufactured is noted
on the Spring Case, Body, and Body Insert of the regulator.
Item
Definition
Mooney Regulator
Trademarked name of regulator.
Series
Model number of regulator.
Control Pressure
The control pressure is limited to
the spring range of the spring on the
regulator (Refer to Fig. 4 for Series 21
& 21S regulators).
Sense & Outlet
Pressure
Maximum allowable pressure in
sense/outlet ports.
Inlet Pressure
Maximum allowable pressure (psig) to
the Inlet port.
Spring Case (Vent)
Pressure
Maximum allowable pressure (psig) to
the Spring Case (Vent) port.
Bolt Torque
Recommended bolt torque for spring
case in foot pounds.
Red, Plated, Blue,
Purple, Black and
Green
Each spring is color coded to indicate
the control pressure range.
Adjusting Screw
Spacer
The black and green springs require a
spacer on the adjusting screw to avoid
over compression.
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SPRING RANGE
RED
PLATED
BLUE
PURPLE
*BLACK
3-12 PSI/0.2-0.8 BAR
10-40 PSI/0.7-2.7 BAR
25-90 PSI/1.7-6.2 BAR
60-200 PSI/4-14 BAR
100-260 PSI/7-18 BAR
200-450 PSI/14-31 BAR
*GREEN
*ADJUSTING SCREW SPACER REQUIRED
HIGH PRESSURE
SPRING RANGE
BLACK
200-520 PSI/14-36 BAR
400-900 PSI/27-62 BAR
GREEN
ADJUSTING SCREW SPACER REQUIRED
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