-0.5~3bar adjustable pressure switches for pumps
Description
In the mechanical system, the air bag interface of the controller
is connected to the pressure port. When the pressure in the
mechanical system exceeds the pressure set point of the controller,
the contacts of the microswitch of the controller are opened, and
the circuit is cut off or connected, and the machine stops or
starts the operation. When the pressure in the mechanical system
drops to the set value of the differential pressure of the
controller, the contacts that control the microswitch are
automatically reset, the circuit is turned on or off, and the
machinery restarts or stops functioning. Therefore, the pressure
controller plays a role in protecting and starting the machine, and
it is of great significance to the rational operation of the
machine.
Feature
- Q series single 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
- Several models available in drip-proof enclosure for marine
applications or in explosion-proof enclosure for special
applications
- CE approval
Technical Data
| Model | Range(bar) | Differential(bar) | Factory setting(bar) | Max bellows pressure |
| Min | Max | Min | Max | OFF | ON |
| Q3 | -0.5 | 3 | 0.35 | 1.5 | 2 | 1 | 16.5 |
| Q6 | -0.5 | 6 | 0.6 | 4 | 3 | 2 | 16.5 |
| Q6M | -0.5 | 6 | ≤1 | 3 | Manual reset | 16.5 |
| Q10 | 1 | 10 | 1 | 3 | 6 | 5 | 16.5 |
| Q16 | 5 | 16 | 1 | 4 | 10 | 8 | 33 |
| Q20 | 5 | 20 | 2 | 5 | 16 | 3 | 33 |
| Q30D | 5 | 30 | 3 | 10 | 20 | 15 | 33 |
| Q30 | 6 | 30 | 3-5(fixed) | 20 | 15-17 | 33 |
| Q30M | 6 | 30 | ≤4 | 20 | Manual reset | 33 |
Note:
Calibration unit on scale plate with “bar” & “psig”, could be
revised into “Mpa”& “kgf/cm2” if required by customers. Connections
could have selections as British Flare (E), solder (C) and
capillary (S).
Dimensions (mm)
Electric Rating
Rated Amps(A) Rated Voltage |
| 125V AC | 250V AC | 24V DC |
| Non-Inductive Current | 20A | 10A | 10A |
| Inductive Current | Full Load Current | 15A | 8A | 8A |
| Locked Roter | 72A | 64A |
Electric wiring
FAQ
1 Q: What's the delivery time?
A: According to the specification and quantity of your order,
generally 4
days for normal standard products within 10pcs.
2 Q:Are you manufacturer or trading company?
A: We are manufacturer with many years of experience.We have our
own factory.Welcome to visit our factory.
3 Q: Can we use our logo on the products?
A: Yes.We can provide OEM service.
4 Q: Do you have products with ex-proof certificate?
A: Yes,we can offer intrinsic-safety and flame proof certificates.
5 Q: What is the warranty of your products?
A: Normal is 12 months.
6 Q: What's the means of transport?
A: Express such as TNT,Fedex,DHL,UPS, or logistics by indicator.
