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[China]
Trade Verify
Address: Suite 701, East Tower of Jin Run Intl Plaza, No.81, Nanxijiang Dong Street, Nanjing, China
Contact name:Martin
Keram (Nanjing)ELECTRICAL Equipment Co., Ltd. |
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Verified Suppliers
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The working principle of the pressure switch: when the pressure in the system is higher or lower than the rated safety pressure, the disc in the sensor will move instantaneously, and the switch connector will be connected or disconnected by connecting the guide rod. When the pressure drops to or rises to the rated recovery value, the disc will reset instantaneously, and the switch will reset automatically, or simply, when the measured pressure exceeds the rated value, the free end of the elastic element will move, Push the switch element directly or after comparison to change the on-off state of the switch element to control the measured pressure. The elastic elements used for the pressure switch include single-coil spring tube, diaphragm, diaphragm box, bellows, etc
Q830 series dual pressure controls can be not only used in fluorinated refrigerant, but also in the air
and liquid (allowed liquid temp. -20 to 120°C)
Adjustable range and differential settings.
Renovated SPDT micro-switch ensures the reliable switch function.
Flexible mounting bracket suits various kids of application.
Upper lid is optional (IP44)
Various connections are available on request.
Automatic and manual reset version
The material of bellows is copper and pressure interface is brass.
CE approval
| Model | Low pressure(bar) | High pressure(bar) | Reset form(bar) | Factory setting(bar) | ||||||
| Pressure adjust range | Differential | Pressure adjust range | Differential | Low pressure | High pressure | Low pressure | High pressure | |||
| OFF | ON | OFF | ON | |||||||
| Q830 | -0.5~6 | -0.6~4 | 8~30 | 3~5(fixed) | Auto | Auto | 3 | 2 | 20 | 15 |
| Q830HM | -0.5~6 | -0.6~4 | 8~30 | ≤5 | Auto | Manual | 3 | 2 | 20 | Manual reset |
| Q830HLM | -0.5~6 | ≤1 | 8~30 | ≤5 | Manual | Manual | 3 | Manual | 20 | Manual reset |
Rated Amps(A) Rated Voltage(V) | Power Factory (Cosφ) | 125/250V AC | |
| Non-Industry Current | 1 | 12 | |
| Industry Current | Full Load | 0.75 | 12 |
| Locked Roter | 0.45 | 72 | |
