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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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QYD differential pressure control is normally used in gas or liquid system to control the pressure difference between the gas/liquid pipeline and the circuit. A typical application is to install the controller in the bypass pipeline near the system pump. When the system pressure difference increases and exceeds pre-set pressure, the control valve will open and more liquid/gas goes through the side valve, which will reduce the pressure differential between these two pipes of the water system. On the opposite, the pressure differential will increase between these two pipes of the water system.
QYD series differential pressure controls is designed to prove flow through pumps
Renovated SPDT micro-switch ensure the reliable switch function
Used in fluoridated refrigerant,but also in air and liquid(-20 to 120°C)
Flexible mounting bracket suits various kinds of application
Various connections are available on request
IP33 rating
CE approval
| Model | Differential(Bar) | Factory Setting | Max Working pressure | |
| Min | Max | |||
| QYD2C | 0.5 | 2 | 0.5 | 12 |
| QYD4C | 0.5 | 3.5 | 1 | 12 |
| QYD4CH | 0.5 | 3.5 | 1 | 30 |
| QYD6CH | 1 | 6 | 6 | 30 |
| QYD4C/B | 0.3 | 4 | 0.3 | 17 |
Rated Amps(A) Rated Voltage(V) | 125V A.C | 250V A.C | |
| Non-Inductive Current | 20A | 10A | |
| Inductive Current | Full Load | 15A | 8A |
| Locked Roter | 72A | ||
| 1 | Common Terminal |
| 2 | Close on Pressure Increase |
| 3 | Close on Pressure Decrease |
l Operating direction on press Increase at High Press. Side
Operating Instruction
1. The new outer cover,two fingers pinch both sides of the plastic lid,open the outer cover can be pumped out;
2. To be installed in the pipe,must use two wrenches and twist tight;
3. Do not install the controller over electric rating of the device.
