Honeywell Pneumatic Controls - PP97 Pneumatic Pressure Control; One-Pipe

Pressure Controllers
Humidistats
and
Thermostats Controllers Sensors Relays Switches Actuators Valves Accessories
Engineering
Guide
Cross
Reference
70-6925 43
PP97 Pneumatic Pressure Control
One-pipe, pressure operated device that provides proportional
control of pneumatic valves to control steam, air, noncorrosive
gas, or noncorrosive liquid pressure. 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.
Dimensions in inches (millimeters) PP97A Typical Piping
Application Type: Proportional Pressure
Connection Size: Bellows: 1/4 in., NPT; Air: 1/8 in. NPT
Approximate Throttling Range, Midscale (max.): 1.5 psi (10 kPa)
Approximate Throttling Range, Midscale (min.): 0.1 psi (0.7 kPa)
Mounting: Lugs for 3-point surface mounting
T
M27119
5 (127)
7
(178)
3-1/8 (79)
TO SYSTEM
N.O.
SIPHON
DA
PP97A
M
ADJUSTABLE
RESTRICTOR
STEAM SUPPLY
C842
Product Number Action
Setpoint Range
Maximum Safe
Operating
Pressure
Maximum
Allowable
pressure
Description(psi) (kPa) (psi) (kPa) (psi) (kPa)
PP97A1035 Reverse Acting,
Direct Acting
0 to 15 psi
0 to 103 kPa 25 psi 172 kPa 25 psi 172 kPa Pneumatic Pressure Controller,
Proportional Pressure, Action: Direct or
Reverse, Output: Proportional
Pressure, 0 to 15 psi pressure range
PP97A1076 Reverse Acting,
Direct Acting
10 to 300 psi
69 to 2068 kPa 350 psi 2413 kPa 350 psi 2413 kPa Pneumatic Pressure Controller,
Proportional Pressure, Action: Direct or
Reverse, Output: Proportional
Pressure, 10 to 300 psi pressure range