TLD Series Differential Pressure Controllers

 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.

 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.

 The micro-switch structure of the TLD series differential pressure controller ensures reliable and fast changeover function.

 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:  7 to 10 working days
  • Transports: By sea, by air, by high express
  • Shipment Port: Shanghai Port
  • Origin of Place: Jiangsu
  • Warranty: 12 Months

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

 Differential Pressure Controllers

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

Differential Pressure Controllers

Form Model Contact Form Description
No Delay TLD15C

TLD2C

TLD35C

TLD35CH

Differential Pressure Controllers 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

Differential Pressure Controllers ↑ 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

Differential Pressure Controllers ↑ 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

Differential Pressure Controllers 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

 Differential Pressure Controllers

With delay TLD-T

Model Size
A B
TLD35T 33 51
TLD35TH 21 36

Wiring instructions:

  1. L2 and 220V parallel, and lead out to contactor coil and the other end of the contactor is connected to phase A
  2. micro switch 1# terminal connected to A phase.
  3. 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.

  1. L1 connects to O wire.

Differential Pressure Controllers

Differential Pressure Controllers

 

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