The high-pressure level switch is a displacer drive unit, which uses a single switch assembly for level alarm or control. These devices are designed for liquids with working pressures up to 250 bar and specific gravities of 0.40 and above. A permanent magnetic sensor is attached to the rotary switch drive. When the float/displacer rises correspondingly with the rise of the liquid, the corresponding sleeve will move into the range of the magnetic sensor and cause the switch to act accordingly
Made in China. brand DDTOP, model UTK
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UTK Displacer Level Switch uses float or displacer as the measurement element which connected to a magnetic tube. When the level rises, the magnetic tube will move up and enter into the external magnetic field. through magnetic induction or magnetic coupling, the magnet controlling switch or offset magnet steel is pulled and makes switch contact on or off. When the level drops, the magnetic tube will move down and separate from the external magnetic field. Then the magnetic controlling switch returns to its original state or, the offset magnet under the action of deadweight returns to a new balance position and make switch contact on or off to realize the level that can be controlled and given an alarm.
1.Chamber material can choose 304 or 316 stainless steel
2.The pressure can be up to 16MPa
3.Temperature can be up to +300° C
4.The lowest specific gravity is 0.40
Refining: Crude oil storage, crude oil desalination
Chemical: Buffer tank
Electricity: Boiler sewage tank, condensate storage, flash tank, pre-flash tank
Interface control：±6mm
Interface control: ρ1-ρ2≥ 0.25g/cm3
ExiaⅡCT1～T5/T6 Ga
Contact Capacity
| Switch Mode | Max Voltage(V) | Max current (A) | Contact Mode | Contact Resistance (≯Ω) | Switching Speed (≯ms) | Lifetime (≮Ten thousand times) |
| Reed Switch | 250 | 1 | SPDT | 0.03 | 3 | 50 |
| Inches Switch | 250 | 5 | SPDT | 0.03 | 3 | 50 |
Note: Intrinsic safety type is only suitable for 24V DC.
Control Range
Level Control
| Controller Mode | Measurement Element | Control Point | Max Pressure
（MPa） |
Nominal Diameter | Alarm Setting Point B(mm) | Measuring
Range H( mm) |
Remark |
| UTK100 | Float type | Upper or lower limits | 6.3 | DN20~DN80 | On request | Controlling point can’t be adjusted | |
| UTK300 | Displacer type | Upper or lower limits | 4.0 | DN80，DN100 | On request | On request | Controlling point can be adjusted |
| Upper and lower limits | The upper and lower limits can be adjusted | ||||||
| UTK400 | Displacer type | Upper or lower limits | 16.0 | DN20~DN80 | On request | Controlling point can not be adjusted | |
Interface Control
| Measurement Element | Controlling Point | Max Pressure
（MPa） |
Min density | Min density difference | Alarm setting value B(mm) | |
| (g/cm3) | ||||||
| Float type | Upper or lower limits | 4.0 | 0.5 | 0.25 | On request | |
| Model | Code | Contents | |||||||
| UTK- | Displacer Level Switch | ||||||||
| 100 | Flange facing type | ||||||||
| A | Standard type | ||||||||
| B | Side and bottom type | ||||||||
| C | Side and side I type | ||||||||
| D | Side and side II type | ||||||||
| 1 | Reed Switch | ||||||||
| 3 | Inches Switch | ||||||||
| X | Upper or Lower limits | ||||||||
| * | Fluid Density（g/cm3） | ||||||||
| – | |||||||||
| * | Alarm setting point(distance from top flange mm) | ||||||||
| i | Intrinsic safety type | ||||||||
| d | Explosion proof type | ||||||||
| -611 | Compliance with PED certification | ||||||||
| UTK- | □ | □ | □ | □ | □ | – | □ | □ |
Example
UTK-100D3X0.8-178i is UTK Displacer Level Switch, flange facing, side and side II type, inches switch, upper or lower limits alarming, fluid density is 0.8 g/cm3, the alarm setting value is 178mm from the upper flange, the explosion proof is intrinsic safety type.
| Model | Code | Content | ||||||
| UTK- | Displacer Level Switch | |||||||
| 300 | Top mount type | |||||||
| 400 | High pressure type(side and side installation) | |||||||
| 1 | Reed Switch | |||||||
| 3 | Inches Switch | |||||||
| X | Upper or lower limits | |||||||
| Y | Upper and lower limits (only for UTK300 type) | |||||||
| * | Fluid density（g/cm3） | |||||||
| – | ||||||||
| * | Alarming setting value(distance from upper flange mm) | |||||||
| i | Intrinsic safety type | |||||||
| d | Explosion-proof type | |||||||
| -611 | Compliance with PED certification | |||||||
| UTK- | □ | □ | □ | □ | – | □ | □ |
Example
UTK-400D3X0.8-178i is UTK Displacer Level Switch, high pressure type, inches switch, upper or lower limits alarming, fluid density is 0.8 g/cm3, the alarm setting point is 178mm from the upper flange, the explosion proof is intrinsic safety type. Outline Drawing and Installation
You can request the necessary certificates, documentation, instructions and user manuals for DDTOP UTK using the special form.
You can buy DDTOP UTK in UK or Europe at a favourable price in «DOLCHETRADE» by leaving a request on the website, by phone +441225535040 or by email dolce@dolcetrade.com. DDTOP UTK price are subject to change depending on exchange rates. We deliver instruments by transport companies in the United Kingdom and Europe.
