Midas 482 Bedienungsanleitung PDF herunterladen (Seite 7)

Selection Criteria

To correctly select the dryer best suited for your

application, the following details are required

to ensure optimum performance and trouble

free operation.

■ Maximum Inlet Flow

■ Minimum Inlet Pressure

■ Maximum Inlet Temperature.

Once these operating parameters have been

established, you can select the most economical

PNEUDRI MiDAS for your application.

Flow Rates

Model

/hr cfm

DAS1 5.1 3

DAS2 8.5 5

DAS3 13.6 8

DAS4 17.0 10

DAS5 22.1 13

DAS6 25.5 15

DAS7 34.0 20

Example

Selecting a dryer for a compressor producing, at full load 13.6m

/hr

(8cfm) at 6 bar g (87psi g) with 35°C (95°F) air inlet temperature and

a pressure dewpoint requirement of -40°C (-40°F).

Step 1

From the sizing chart select the required pressure @ 6 bar g (87psi g)

and read across to the required inlet temperature @ 35°C (95°F). The

Correction Factor is 0.88

Step 2

To adjust the flow for your application, divide the required flow by the

0.88. Correction Factor

Example:

Sizing Capacity = Actual Flow 13.6m

/hr (8cfm) = 15.5m

/hr (9cfm)

Correction Factor 0.88

Step 3

From the Model Selector, select the dryer which has a rated flow

capacity of 15.5m

/hr (9cfm) or higher.

Selected model for this example is a PNEUDRI MiDAS DAS 4.

Sizing Chart (Correction Factors)

Model Selector

Referenced to 20°C (68°F) and 1bar a (14.5 psi a)

Minimum Inlet Pressure Maximum Inlet Temperature °C (°F)

bar g psi g 35 (95) 40 (104) 45 (113) 50 (122)

4 58 0.63 0.61 0.55 0.46

5 73 0.75 0.73 0.66 0.55

6 87 0.88 0.85 0.77 0.64

7 100 1.00 0.97 0.88 0.73

8 116 0.97 0.94 0.85 0.71

9 135 1.08 1.05 0.95 0.79

10 145 1.18 1.14 1.04 0.86

11 160 1.29 1.25 1.14 0.94

12 175 1.40 1.36 1.23 1.02

1 2 3 4 5 6 7 8

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