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The performance specifications are nominal and conform to acceptable industry standards. For applications at conditions beyond these specifications, consult the local Johnson Controls office.
Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products. © 2014 Johnson Controls, Inc.
www.johnsoncontrols.com
V–79
D-3031 Pneumatic Piston Damper Actuator
Code No. LIT-1921005
Description
The D-3031 Pneumatic Piston Damper
Actuator is designed primarily for damper
positioning on small terminal units. Models are
furnished with 1 in. (25 mm) stroke, and have
two movable adjustment stops to facilitate
adjusting the stroke in 1/8 in. increments.
The D-3031 features a polycarbonate top and
body and a threaded 5/16 in. (8 mm) diameter
piston rod for convenient linkage attachment.
The D-3031 is the unit replacement for the
D-160 and D-251 #2S actuators.
Refer to the D-3031 Pneumatic Actuator
Product Bulletin (LIT-2681050P) for important
product application information.
Applications
The D-3031 is designed to operate normally
open or normally closed dampers using either
swivel or rigid type face mounting. The
actuator can be rotated to locate the air
connection in the preferred position.
Refer to D-3031 Pneumatic Actuator
(Part No. 34-175-2) for mounting and bracket
details and arrangements.
The D-3031 has a maximum stroke of 1 in.
without stops. Two stroke adjustment stops
are provided for limiting the stroke in 1/8 in.
increments from 7/8 to 1/2 in.
Features
high power-to-size ratio for locations in
confined spaces
swivel or rigid mounting options for flexible
mounting configurations
optional mounting kits to cover any
application and replacement of obsolete
units
barbed fitting for 5/32 in. or 1/4 in. Outside
Diameter (O.D.) tubing
Repair Information
If the D-3031 Pneumatic Actuator fails to
operate within its specifications, replace the
unit. For a replacement actuator, contact the
nearest Johnson Controls® representative.
D-3031 Pneumatic Piston Damper
Actuator
Selection Chart
Accessories
WARNING: Risk of Personal Injury and
Property Damage.
Do not install the D-3031 Pneumatic Piston Damper
Actuator in any application using corrosive solvents
or refrigerants. Use of the D-3031 Pneumatic Piston
Damper Actuator with corrosive solvents or
refrigerants may weaken the structure of the actuator
resulting in a release of pressure which could cause
property damage, severe personal injury, or death.
IMPORTANT: Clean with mild soap and water only. If other
solvents are to be used, consult with factory for compatibility with
polycarbonate.
IMPORTANT: The following solvents will harm polycarbonate:
Acetone, all chlorinated solvents (Perchlorethylene,
Trichloroethylene, Chlorothene NU T-9999-3, and others),
Benzene, Carbon tetrachloride, Ethylacrylate (Leak Detector
#7-P), Ethylene Dichloride, Freon (refrigerant and spray can
propellent), Hydrochloric Acid (concentrated), Methyl Alcohol,
Methylene Chloride, Nitro Cellulose Lacquer, Toluene, some
synthetic compressor oils, and Xylene.
Code Number Nominal Spring Range, psig (kPa)
D-3031-3 5 to 10 (35 to 70)
D-3031-4 8 to 13 (56 to 91)
Code Number Description Weight, lb (kg)
D-3031-100 Mounting Bracket Kit 3.5 (1.59)
D-3031-101 Type W Mounting Plate 0.8 (0.36)
D-3031-102 Type W Linkage Kit with 5/16 in.
Crankarm for 45° Movement
0.8 (0.36)
DMPR-KC005 Shaft Extension Kit 1.0 (0.45)
Maximum Actuator Force
1
Supply
Pressure,
psig (kPa)
Nominal
Spring
Range,
psig (kPa)
Stroke Force, lb
(Newton)
Torque Output for
90° Rotation
15 (105) 5 to 10
(35 to 70)
Power 14 (62.3) 19.5 lb·in (2.2 N·m)
Return 14 (62.3) 19.5 lb·in (2.24 N·m)
8 to 13
(56 to 91)
Power 5.6 (24.9) 7.8 lb·in (0.9 N·m)
Return 22.4 (99.6) 31.4 lb·in (3.6 N·m)
20 (140) 5 to 10
(35 to 70)
Power 28 (124.6) 39.2 lb·in (4.4 N·m)
Return 14 (62.3) 19.5 lb·in (2.2 N·m)
8 to 13
(56 to 91)
Power 19.6 (87.2) 27.3 lb·in (3.1 N·m)
Return 22.4 (99.6) 31.4 lb·in (3.6 N·m)
1. Force calculated using 1.4 lb/psig available actuator force.
!
Pneumatic Damper Actuators
Technical Specifications
D-3031 Pneumatic Piston Damper Actuator
Stroke 1 in. (25 mm); Adjustable with Stops to 7/8,
3/4, 5/8, and 1/2 in. (22, 19, 16, and 13 mm)
Effective Diaphragm Area 2.8 in.
2
(18 cm
2
)
Spring
Ranges
D-3031-3 5 to 10 psig (35 to 70 kPA)
D-3031-4 8 to 13 psig (56 to 91 kPA)
Piston Rod Threaded, 5/16 in. Diameter
Ambient Temperature Limits -20 to 150°F (-29 to 66°C)
Control Pressure 15 or 20 psig (105 or 140 kPA); 25 psig
(175 kPA) Maximum
Air Connection Barbed Fitting for 5/32 or 1/4 in. O.D.
Polytubing
Materials Actuator and Nut Polycarbonate
Stops Nylon
Swivel Washers Oilon
Diaphragm Synthetic Elastomer
Rod and Spring Steel
Mounting Rigid or Swivel Type
Accessories D-3031-100 Bracket Accessory Kit
D-3031-101 Mounting Plate Kit
D-3031-102 Linkage Kit
DMPR-KC005 Shaft Extension Kit
Shipping Weight 0.5 lb (0.23 kg)
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