Pressure transmitter classification:

1. Gauge pressure transmitter:

Gauge pressure transmitters are pressure transmitters that use local atmospheric pressure as a reference zero point.

2. Absolute pressure transmitter:

The absolute pressure transmitter is a pressure transmitter with vacuum as reference zero point. During use, the reference zero point of the sensor can be automatically adjusted without any correction according to the location of the location. The shape and gauge pressure transmitter are no different.

3. Differential pressure transmitter:

The differential pressure transmitter is a pressure transmitter that measures the pressure difference between two pressure chambers. The differential pressure transmitter has two pressure chambers of "+" and "-", respectively. Respectively take the pressure of the two as the comparison value, usually the larger pressure end as "+" pressure chamber.

Note: When ordering a differential pressure sensor, please note that one parameter specific to the differential pressure transmitter is static pressure resistance. For example, when we use a differential pressure transmitter, the pressure on the “+” pressure end is 10 MPa. “-”

Pressure on the pressure end is 10.5MPa, then the differential pressure measured by the transmitter is: 10.5-10 = 0.5MPa

The transmitter is subjected to a static pressure of 10 MPa. In the application process, the use of high static pressure and low differential pressure are commonplace. The differential pressure transmitter ordered by the static pressure should not exceed the differential pressure transmitter's resistance to static pressure, otherwise, it is easily damaged.

4. Input/plug level transmitters:

Level transmitters are divided into input and plug-in two, the two forms are the same, are all converted to the liquid pressure. When the water depth is 1m, the pressure on the transmitter is 10KPa. When ordering such sensors, pay attention:

1. The density of the measured liquid should be reported to the production unit.

2. When the measurement medium is corrosive, the production unit should be informed.

3. When the measured medium temperature exceeds -10°C and 60°C, the production unit is informed.

5. High temperature pressure transmitter:

For high ambient temperature or high temperature of the measurement medium in the measurement site, a medium-high temperature pressure transmitter must be used. The transmitter has a good zero temperature coefficient and sensitivity temperature coefficient, which can ensure the measurement accuracy in a high temperature environment. . When ordering this type of transmitter, it is necessary to inform the measuring medium temperature and the ambient temperature in order to facilitate the manufacturer's reasonable response.

Rigid PP/PE/ABS/PC Pelletizing Machine

Rigid PP/PE/ABS/PC Pelletizing Machine

raw material:PE plastic film

final product: PE granules

output:100-800kg/h

cutting type:water ring

Components included in plastic pelletizing machine :

1.feeding conveyor 2. film compacting machine 3. screw barrel 4.fast speed double post non-stop hydraulic screen changer 5. water flush pelletizing system 6. water cooling trough 7.Centrifugal dewatering machine 8.vibration screen 9. conveying blower 10. store silo

Advantages of this plastic pelletizing machine :

PE/PP recycling granulating machine is special equipment for the PE PP film recycling granulating, it equipped with comacting machine which cound pre- compact the film into smaller granules, then easily feed into screw barrel of extruder, its efficiency is high and can improve production capacity and save labour cost.

it has two vacuum exhuasting mouth on extruder barrel which can fully vent the moisture in the material and hence the final granule quality will be very perfect.

at the end of screw barrel, it equipped with double post fast speed hydraulic non -stop screen changer which can effetively filt out the dirty in the plastic melt.

the pelletizing adopts water flush pelletizing which is easier to operate, and the shape and appearance of granule is good.

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