PLH series dryer - pressure up to 50 bar

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Water (Vapor)
Dew point +3°C
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Medium pressure range


The PLH series refrigerated dryers is designed for compressed air networks up to a pressure of 50 bars needing a pressure dew point of +3ºC.

They are equipped with stainless steel plate heat exchangers. These heat exchangers offer a better resistance and take up less space than traditional ones.

The cooling circuit is regulated by a proportional valve, guaranteeing a dew point stability from 0 to 100% of the flow.

The range comprises 19 models covering flows of up to 5000m3/hr.




    •    3ºC pressure dew point (ISO 8573-1:2001=4 class)

    •    stainless steel brazed plate heat exchanger

    •    vertical design of the heat exchanger, natural separation of the water through gravity, without risk of backflow

    •    condensate separator with stainless steel demister

    •    digital display of the dew point

    •    electronic controller with configurable remote alarm monitoring

    •    low energy consumption

    •    low clutter

    •    electronic condensate drain


Model
     
Model Input connection Flowrate (m³/h) My wish
PLH 4 C 3/8” 25
PLH 8 C 3/8” 45
PLH 12 C 3/8” 72
PLH 15 1/2” 90
PLH 22 1/2” 135
PLH 30 3/4” 180
PLH 40 3/4” 240
PLH 50 1” 315
PLH 75 1” 450
PLH 100 1” 615
PLH 130 1” 1/2 810
PLH 160 1” 1/2 1008
PLH 270 2” 1620
PLH 400 2”1/2 Br. 2430
PLH 500 2” 1/2 Br. 3030
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* Select the generic if you don't know which model to choose. The sales department will contact you to determine the appropriate model.

(*) ISO 7183 - 20ºC 1 bar abs. for a pressure of 40 bar, compressed air 35ºC, ambient air 25ºC, pressure dew point +3ºC.

PLH: Medium pressure range

The PLH series refrigerated dryers is designed for compressed air networks up to a pressure of 50 bars needing a pressure dew point of +3ºC.

The thermodynamic circuit is designed around a robust stainless steel brazed plate heat exchanger.  These heat exchangers offer a better resistance and take up less space than traditional ones.

A proportional regulation bypass valve offers a perfect stability to the cooling circuit and a constant dew point , without freezing risk, regardless of the dryer’s load.

The dew point is constantly displayed for a better control.

Detailed specifications

Maximum service pressure

50 bars
Max. compressed air temp.

65°C
Min./Max. ambient air temp.

+10 / + 50°C
Manufacturing code

DESP 97/23
Power supply (PLH 40 2 to PLH 130)

240 / 1 / 50 Hz
Power supply (PLH 160 to PLH 500)

400 / 3 / 50 Hz
Condensate drain

Temporised solenoid valve

Necessary filtration

5μ upstream

Refrigerant used (PLH 4 to PLH 22)

R 134 A
Refrigerant used (PLH 30 to PLH 500)

R 404 A
Condensator (standard)

forced air

Condensator (optional)

Water (PLH 75 and beyond)

Correction factor depending on operating pressure

Pressure Bars 15 20 25 30 35 40 45 50
Factron x 0.75 0.82 0.87 0.92 0.96 1.00 1.03 1.06

Correction factor depending on ambient temperature

Temp. °C 25 30 35 40 45 50
Factor x 1.00 0.98 0.95 0.90 0.88 0.81

Correction factor depending on compressed air temperature

Temp. °C 25 30 35 40 45 50 55 60 65
Factor x 1.27 1.12 1.00 0.88 0.78 0.70 0.62 0.55 0.49

Correction factor depending on outlet air temp.

Dew point °C 3 5 7 10
Factor x 1.00 1.09 1.19 1.37