A proportional pneumatic actuator with 8 in² (52 cm²) effective area, 8 to 13 psig control, and spring-return fail-safe. Used for controlling dampers, mixing boxes, and air valves in HVAC systems.
A proportional pneumatic actuator with 8 in² (52 cm²) effective area, 8 to 13 psig control, and spring-return fail-safe. Used for controlling dampers, mixing boxes, and air valves in HVAC systems.
| Construction | Housing: Die Cast Aluminum Diaphram: Beaded molded neoprene |
| Stroke | Minimum Stroke: 12 lb (53 N) Power Stroke: 15 psi (10 kPa) Supply Dual Press. System - 4 (18 N) 15 psi (10 kPa) Supply Single Press. System - 16 (71 N) 20 psi (10 kPa) Supply Single or Dual Press. System - 56 (249 N) |
| Start Point | Adjustable on most models ± 1 psi; 3 non-adj, 21 non adj. |
| Spring | Retracts actuator shaft on loss of air pressure |
| Maximum Air Pressure | 30 psig (207 kPa) |
| Amient Temperature Limits | Shipping: -40 to 160°F (-40 to 71°C) Operating: -20 to 160° F (-29 to 71°C) |
| Air Connections | 1/8" (0.32 cm) FNPT |
| Mounting | In any position, mounting bracket and connector for 5/16" (8mm) diameter push rod included with actuator |
| Dimensions | 12 x 5-7/8 x 5-1/2" (305 x 143 x 140 mm) |
Click on a category to view a selection of compatible accessories with the Schneider Electric MK4-3121 Pneumatic Proportional Damper Acutator, 8 to 13 psig, 8 in².
Click on a category to view a selection of compatible accessories with the Schneider Electric MK4-3121 Pneumatic Proportional Damper Acutator, 8 to 13 psig, 8 in².
