Johnson Controls D-4070 Pneumatic Piston Damper Actuator
The D-4070 Two Stage Pneumatic Actuator is a multipurpose positioning device used to accurately position small dampers primarily on unit ventilators, Variable Air Volumes (VAVs), terminal units, and small ventilating dampers in response to output signals of a pneumatic controller or electro-pneumatic transducer. The D-4070 was specifically designed to provide ASHRAE Cycle II and W control of unit ventilators where a minimum of outdoor air (15 to 50%) is admitted during the heating and ventilating stage and gradually increased to 100%, if needed, during the cooling and ventilating stage. The D-4070 is a direct replacement for existing D-3070 actuators and a functional replacement for older D-255 actuators.
• 2-way swivel connection ensures nonbinding movement and full power delivery
• glass reinforced polymer housing which is lightweight, corrosion and chemical resistant
• telescoping Linkage for fast and flexible installation
• economical because has 2 springs for two stage operation which functions as two separate actuators
• designed to provide ASHRAE Cycle 11 and W controls of unit ventilators
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| Cat # | Stroke | Nominal Spring Range, psig (kPa) | Force, lb (Newtons) | Torque Output for 90° Rotation |
| D-4070-1 | Power | 3-6 (21-42) First Stage, 9-12 (63-84) Second Stage with Auxiliary Mounting Bracket | 53.6 (239) | 73.7 in·lb (8.4 N·m) |
| D-4070-2 | Return | 3-6 (21-42) First Stage, 11-14 (35-70) Second Stage with Auxiliary Mounting Bracket | 20.1 (89) | 27.6 in·lb (3.1 N·m) |
| D-4070-6001 | Power | 3-6 (21-42) First Stage, 9-12 (63-84) Second Stage body only | 40.2 (179) | 55.3 in·lb (6.3 N·m) |
| D-4070-6002 | Return | 3-6 (21-42) First Stage, 11-14 (35-70) Second Stage body only | 20.1 (89) | 27.6 in·lb (3.1 N·m) |
| Stroke | 2-3/4 in. (70 mm) | ||
| Control Air Pressure | 0 - 20 psig for HVAC, 25 psig (171 kPa) Maximum |
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| Air Connections | 1/8 in. NPT straight barbed fitting for 1/4 in. O.D. polytubing (furnished) |
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| Ambient Storage Condition | -20 to 150°F (-29 to 66°C) | ||
| Ambient Operating Conditions | 35 to 150°F (2 to 66°C) | ||
| Effective Diaphragm Area | 6.7 in2 (45 cm2) | ||
| Housing Material | Glass reinforced polymer, UL 94 HB flame class rating |
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| Ambient Temperature Conditions |
–20 to 150°F (–29 to 66°C) | ||
| Diaphragm Material | Synthetic elastomer | ||
| Dimensions | 3-7/8 in. diameter x 9-15/16 in. long | ||
| Shipping Weight | 3.5 lb (1.6 kg) | ||
