12950 W.Eight Mile Road • Oak Park,MI 48237-3288 • 248/399-8000 • FAX:248/399-7246 • www.trerice.com
1/1/2001
51
Pneumatic Controller 87700 Series
Specifications
How to Order
Sample Order Number: V87700RV140B0110 
V 87700 R V140 B01 10
Actuation Model Action Specific Range Thermal System Capillary Length
V Vapor 87700 On/Off R Reverse Acting See Standard See Thermal 05 5 Feet 
L Liquid 87700T Proportional D Direct Acting Available Ranges System Selection 10 10 Feet 
M Mercury (page 54) (over) 15 15 Feet 
P Pressure Omit if Pressure 20 20 Feet
Omit if Pressure
Model
87700 (On/Off) 
87700T (Proportional)
Action
Field reversible 
Reverse Acting: Decreases
output control signal pressure 
as temperature or pressure 
increases
Direct Acting: Increases output 
control signal pressure as 
temperature or pressure increases
Output Signal
3 to 15 psi
Proportional Band
2 to 100% Full Scale 
(87700T only)
Movement
Stainless steel
Case
Cast aluminum, blue finished, 
wall mounted
Cover
Cast aluminum, blue finished, 
rubber gasketed
Window
Glass
Pointers
Stainless steel, field adjustable
Range Plate
Aluminum, white background 
with black graduations and 
markings
Air Requirements
Clean, oil-free, dry air 
Air Supply Pressure: 20 psi 
Air Consumption: <0.2 SCFH
Accuracy
±One Scale Division
Approximate Shipping 
Weight
9.0 lbs [4.09 kg]
On/Off or 
Proportional 
Control
Cast Aluminum 
Case
Low Air 
Consumption
Simple 
Mechanical 
Operation
V87700 pictured
The Trerice 87700 Series Pneumatic Controller 
is designed to provide On/Off (87700) or 
Proportional (87700T) control for a wide variety 
of pneumatic control applications. The 87700 
“On/Off” Controller will meet the needs of batch 
type processes where the absence of 
modulation is advantageous. This fixed high 
sensitivity controller is designed for use with a 
quick opening control valve. The 87700T 
“Proportional Band” Controller will work well with 
a modulating control valve to provide excellent 
control of continuous flow processes where 
average flow and demand fluctuations occur. 
The 87700T can be set to modulate between 
2 and 100 percent of the range span.  
For applications where the process media may be 
corrosive or contained under pressure, the use of a 
thermowell is required to prevent damage to the 
controller and facilitate its removal from the process.
The Trerice No.TA987 Air Filter/Regulator is 
recommended for filtering and regulating the pressure 
of plant compressed air and delivering clean,dry air at 
the proper pressure to pneumatic control devices.
Other: Specify Length in Feet 
Vapor: 100 Feet Maximum 
Liquid: 20 Feet Maximum 
Mercury: 100 Feet Maximum
Controllers