Home > Products > Differential Pressure Switch > LF30 Air Differential Pressure Switch
LF30 Air Differential Pressure Switch
US$ 3 - 10
/ Piece
1 Piece(Min. Order)
- Shanghai Ningbo
- T/T D/P D/A
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Product Details
| Place of Origin | China | Brand Name | LEFOO | |
| Model Number | LFAS | Max. Working Pressure | 10mbar |
Product Description
LFAS differential pressure switch employs a differential pressure to actuate a precision snap switch at chosen pressure setting. This may be the difference between atmospheric and a negative or positive pressure or between any two given pressures. When a change of pressure occurs between the negative pressure chamber and the positive pressure chamber the main diaphragm activates the snap switch at a pre-determined value.
The LFAS pressure cut-off switch is manufactured from selected compound derivatives of polycarbonate & PBT offering exceptional thermal and dimensional stability at elevated temperatures up to 105 when used in contaminated atmospheres of air, products of combustion, L.P. or natural gas. It has been designed to meet the low pressure, high temperature specifications of future generations of fanned gas and similar appliances where differential pressures form part of an integral control systems.
Model | LFAS |
Media | Air, products of combustion, L.P. or natural gas |
Mounting /Fixing | 4 screws with maximum penetration depth of 6.3mm into appropriate mounting holes, or fixed with optional bracket. |
Mounting Position | The LFAS is position sensitive. It may be mounted in most positions provided it has been calibrated. |
Field Adjustable Range | 0.4mbar to 8.0mbar make on positive or negative pressure rise. Minimum upper switching pressure 0.4mbar. Minimum lower switching pressure 0.2mbar. |
Switch Differential | Not less than 0.1mb and not greater than 0.3mb depending on pressure settings. |
Maximum Operating Pressure | 10mbar Pmax=50mbar. |
Operating Temperature Range | 105 Maximum |
Electric Rating | 125V,250V, 5A single pole on-off or single pole change over. Other ratings are available on request. |
Contact Arrangement | SPDT or SPST |
Terminals | 6.3 or 4.88 mm male Q.C. Optional insulation cover available as necessary. |
Calibration | LFAS switches are normally calibrated at their lower switching pressure in accordance with customer requirements. Ramp rate at switch point=0.03mb/second |
Calibration Tolerance | Standard production tolerance at ambient temperature is ± 0.10mb or ± 5% of set point, whichever is the greater. |
| Pressure Connections | 6mm O.D. push on or "Permifix" tubing. The lower (negative) connector may be supplied in any one of four positions for ease of installation. |
Contact Us
- Zhejiang LEFOO Industrial Co., Ltd.
- Contact namePeter Wu Chat Now
- AddressNo. 220, Wei 15th Rd., Economic Development Zone
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