Pressure Controllers
40 customer.honeywell.com 70-6925
PP903 Pneumatic Differential Pressuretrol
One-pipe, pressure operated device used to provide proportional
control of pneumatic valve or damper actuators by varying the
pressure to the actuators in relation to the pressure difference
between two separate water pressures. Replacement devices are
available for Johnson, Powers, Robertshaw, and older Honeywell
pneumatic pressure controllers.
• Easily accessible adjustments.
• Direct Acting (DA) or Reverse Acting (RA) setting.
• Mounting lugs for quick mounting.
Dimensions in inches (millimeters) PP903A Typical Piping
Application Type: Differential Pressure
Connection Size: Input: 1/4 in. NPT; Branchline: 1/8 in. NPT
Approximate Throttling Range, Midscale (max.): 25 psi (172 kPa)
Pressure Range: 0 to 300 psi (0 to 2068 kPa)
Mounting: Lugs for 3-point surface mounting
9-11/16 (246)
8-5/8
(219)
3-5/16 (84)
M27078
M5423
RETURN
MAIN
PP903A
SUPPLY
MAIN
HAND
VALVE
GAGE
TEE
HAND
VALVE
GAGE
TEE
RESTRICTION
HEAT
EXCHANGER
PUMP
N.O.
M
Product Number Action
Actuator Force
Maximum Safe
Operating Pressure Differential Pressure Range
(psi) (kPa) (psi) (kPa) (psi) (kPa)
PP903A1036 Reverse Acting, Direct Acting 7.5 psi 52 kPa 18 psi 124 kPa 5 to 65 psi 34 to 448 kPa
To Next Page
Loading...
Need help?
General
