TLD Series Differential Pressure Controllers
â– Â TLD series differential pressure controller, also known as oil pressure differential controller (hereinafter referred to as controller), it is used as a refrigeration compressor or other machinery .It means the protection device of pressure lubrication.
â– Â In the refrigeration system, in order to make the compressor moving friction parts can get good lubrication, the lubrication system must maintain a certain oil pressure, if the pressure oil is too low, will make the compressor in normal operation or start the loss of oil and cause “bite cylinder” accident, and even burned compressor shaft tile. To prevent this phenomenon, it is necessary to install a safety device to control the oil pressure. The controller plays this role. It accepts the lube oil pump discharge pressure and compressor suction pressure of two pressure signals, and make these two pressures to maintain a certain range of differential pressure between, and when the differential value is less than the set value, the switch in the controller will operate, automatically cut off the compressor circuit, the compressor stops, to play a safety protection role.
â– Â The micro-switch structure of the TLD series differential pressure controller ensures reliable and fast changeover function.
â– Â TLD series differential pressure controllers are CE certified and GIC certified.
- Price Term: FOB/CIF/EXW/DAP
- Package: Exported Wooden case or according to customer request
- Delivery Time: Â 7 to 10 working days
- Transports: By sea, by air, by high express
- Shipment Port: Shanghai Port
- Origin of Place: Jiangsu
- Warranty: 12 Months
- Technical Parameters
- Electrical Parameters
- Connection Method
- Ordering
- Model And Parameters
- Standard Accessories And Dimensions (Unit: Mm)
- Contact Form
- Standard Accessories And Dimensions (Unit: Mm)
Ambient temperature: -40~+65℃
Medium temperature: -40~+120℃
Applicable media: R134a, R22, R407C, R404A/R507, water, air and viscosity less than 4 degrees of the oil
Wire connection: Inlet hole diameter of 15mm
Rated Voltage
Rated Current |
A.C.110 | A.C.220 | |
Non-Induced Current | 24 | 16 | |
Induced Current | Full Load Current | 24 | 16 |
Instantaneous Current | 144 | 96 |
Please indicate special requirements after the signal:
Inch fitting thread (7/16-20UNF) Please add the letter “E” to the model number.
“MGL” indicates capillary tube, standard length 1 m (with connection nut), please indicate extensions.
“F” indicates female thread connection.
“A” indicates stainless steel air box assembly.
Form | Model | Measurement Range | Switching difference | Set break differential pressure | Max. Working Pressure |
No Delay | TLD15C | 0.05~0.15 | ≥0.05 | 0.05 | 1.70 |
TLD2C | 0.05~0.20 | ≥0.05 | 0.05 | 1.70 | |
TLD35C | 0.05~0.35 | ≥0.05 | 0.10 | 1.70 | |
TLD35CH | 0.10~0.60 | ≥0.05 | 0.10 | 3.30 | |
With Delay | TLD35T | 0.05~0.35 | ≥0.05 | 0.10 | 1.70 |
TLD35TH | 0.10~0.60 | ≥0.05 | 0.10 | 3.30 | |
With Reverse Contact Delay | TLD35TS | 0.05~0.35 | ≥0.05 | 0.10 | 1.70 |
TLD35THS | 0.10~0.60 | ≥0.05 | 0.10 | 3.30 | |
Manual Fixed Pressure Difference | TLD1.5CHM | National Definition 0.15 | ≥0.04 | National Definition 0.15 | 3.30 |
TLD2.5CHM | National Definition 0.15 | ≥0.04 | National Definition 0.15 | 3.30 |
Form | Model | Contact Form | Description |
No Delay | TLD15C
TLD2C TLD35C TLD35CH |
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①: Common contact
①-③: Turn on when the differential pressure increases ①-⑤: Turn on when the differential pressure decreases |
With Delay | TLD35T
TLD35TH |
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↑ P: Direction of action when differential pressure increases
↑ H: Direction of action when time increases ↑ M: Manual reset direction |
With Reverse Contact Delay | TLD35TS
TLD35THS |
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↑ P: Direction of action when differential pressure increases
↑ H: Direction of action when time increases ↑ M: Manual reset direction |
Manual Fixed Differential Pressure | TLD1.5CHM
TLD2.5CHM |
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3-4: Turn on when the differential pressure increases
1-2: Turn on when differential pressure decreases ↑ M: Manual reset direction |
No delay TLD-C
Model | Size | |
A | B | |
TLD15C,TLD2C, TLD35C | 33 | 51 |
TLD35CH | 21 | 36 |
With delay TLD-T
Model | Size | |
A | B | |
TLD35T | 33 | 51 |
TLD35TH | 21 | 36 |
Wiring instructions:
- L2 and 220V parallel, and lead out to contactor coil and the other end of the contactor is connected to phase A
- micro switch 1# terminal connected to A phase.
- accident signal lamp – one end to the micro switch5# terminal, the other end is connected to O wire.
4.One end of the normal signal light is connected to terminal 3# of micro switch, and the other end is connected to O wire.
- L1 connects to O wire.