Pneumatic Pressure Controllers
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FOR FOUR (4) NO.
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1 (25)
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M27075
X
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2-1/2
(63)
PP905 Static Pressure Sensor
One-pipe, direct-or reverse-acting pressure sensor used with
RP908/RP920 Controllers to provide control of duct static, velocity,
or differential pressure in airflow applications. Replacement
devices available for Johnson, Powers, Robertshaw, BarberColman, and older Honeywell devices.
• Three-diaphragm design minimizes cal bration shift with static
pressure changes in velocity pressure applications.
• Not sensitive to normal supply air variations.
• Continuous static, total, velocity, or differential pressure indication
available by using differential pressure gage.
Dimensions Diagram PP905 in Pneumatic Static Pressure Application
C
DISCHARGE
AIR
STATIC
PP905B
SENSOR
NORMALLY
OPEN
DAMPER
REFERENCE
PNEUMATIC
AUCTATOR
DUCT
A
Pneumatic
Application Type: Static Pressure
Action: Can be set for Direct Acting or Reverse Acting
Airflow Usage: 0.021 cfm (9.9 ml/s)
Connections: Push-on barb for 1/4 in (6 mm) Diameter tubing
Mainline Air Pressure (min.): 16 psi (112 kPa)
Mainline Air Pressure (max.): 25 psi (175 kPa)
Pressure Range: 2 in. wc (0.5 kPa)
Maximum Safe Static Pressure: 28 in. wc (7 kPa)
Mounting: Duct mount
Temperature Range: 40 F to 120 F (4 C to 50 C)
Maximum
Operating
Pressure
Output Pressure
Range Setpoint Range
Product Number
PP905B1008/U 25 psi 172 kPa 3 psi to
15 psi
21 kPa to
103 kPa
Accessories:
14004238-001-Static Pressure Duct Head for 1/4 in., 6 mm diameter
0 in. wc. to 7 in. wc.
(Adjustable)
2
Plastic Tubing
0 kPa to 1.7 kPa
(Adjustable)
3 9
1
M
Span (NonAdjustable)
RP920C
CONTROLLER
M5570A
Comments(psi) (kPa) (psi) (kPa) (in. wc) (kPa) (in. wc) (kPa)
2 in. wc. 0.5 kPa The setpoint determines the
midpoint of the span.
Controls
70-6910 671