Nanjing Saiko Controls Co.Ltd
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HVAC micro low air adjustable differential pressure switch
SK6021 series air pressure controls is used to sense tiny pressure change and widely used to control the flow of aerator, to monitor fan and air conditioner It is also suitable for over heating protection and frost protection in industrial cooling system. Due to its oustanding design,the set point can be adjusted visually.
Application
SK6021 pressure switch can be used to sense
(Differential) pressure and flow of air in ducts and pipes
.Typical applications include:
-Filter obstructive alarm.
-Air proving in ventilation ducts.
-Maximum air flow controller for variable air volume
systems.
-Burner air control
Specifications
| Product name | Waterproof Switch Air Differential Pressure Switch |
| Media | Air,non-combustible and non-aggressive gas |
| Max Operating Pressure | 10 kPa |
| Mounting Position | Diaphragm in any vertical plane |
| Degree of protection | IP54 (with cover) |
| Operating Temperature | -40° C to 85° C |
| Contact Arrangement | SPDT |
| Electrical Rating |
Resistance: Initial: < 50 milliohms; Current:1.5A resistive(0.4A inductive) @ 250V |
| Electric Connection | 6.3 x 0.8 blade 46244 or screw terminals |
| Material |
Housing: ABS Duct connectors: ABS Membrane: Silicone Cable sleeve: PVC |
| Weight | 0.15kg(0.35kg with flexible pipe) |
| Connection | 6.0mm Dia. for tube connection |
| Approval | UL, CE, RoHS |
Measuring Range
SK6021-B: 30Pa-300Pa,
SK6021-C: 50Pa-500Pa,
SK6021-D: 100Pa-1000Pa
Mounting instruction
The switch is preferably mounted with the diaphragm in a vertical plane , unless the device is set or calibrated for horizontal mounting as on special customer models . On these models the mounting position is indicated on the side of the control .It may
be fastened directly to the duct , heater or panel as long as the mounting surface has minimal or no vibration .Pressure connection ns are marked +(high pressure ) and - (low or static pressure).For more informaton, please read the diagram on the side of the control .