|
Model Number |
QPNC 50 |
|
CFM @ 100 psig |
50 |
|
m3/hr 7 bar |
85 |
|
Volts/Phase/hertz |
115/1/60 |
|
Full Load KW |
0.359 |
|
Full Load Amps |
5.9 |
|
Max psig |
232 |
|
Nominal ΔP |
2.9 |
|
Heat Rejection BTU/Hr. |
6800 |
|
Dimension L (in.) |
21 |
|
Dimension W (in.) |
14 |
|
Dimension H (in.) |
20 |
|
Approximate Shipping Wt (lb.) |
75 |
|
Air Connection (in.) |
1/2 |
Note: Capacity in accordance with recommended NFPA standards and CAGI standard ADF 100. Ratings based on 100°F inlet temperature, 100psig inlet pressure and 100°F max ambient.
KW inputs are shown for air cooled models including fan motors. Water cooled models are approx. 8% less. Heat rejection figures are approximate.
|
Engineering Data / Sizing Formula: |
Inlet Air Pressure Correction:
|
Temp F° |
60 |
80 |
100 |
120 |
140 |
160 |
180 |
200 |
|
QPNC 10-250 Factor |
0.79 |
0.93 |
1 |
1.03 |
1.07 |
1.09 |
1.112 |
1.14 |
Inlet Air Temperature Correction:
|
Temp F° |
80 |
100 |
110 |
120 |
|
QPNC 10-250 Factor |
1.05 |
1 |
0.87 |
0.67 |
Ambient Air Temperature Correction:
|
Temp F° |
80 |
90 |
100 |
110 |
|
QPNC 10-250 Factor |
1.12 |
1.03 |
1 |
0.92 |
Dew Point Correction:
|
Temp F° |
37-39°F |
45-50°F |
|
QPNC 10 Factor |
1 |
1.12 |
Example Formula:
example conditions:
|
Capacity |
480 cfm |
|
Inlet Pressure |
120 psig |
|
Inlet Air Temp. |
90°F |
|
Ambient Temp. |
100°F |
|
Dew Point |
39°F |
example formula:
Dryer Required = (CFM required) / ( (A) x (B) x (C) )
= 480 / ( (1.03) x (1.21) x (1) x (1) )
= 385 cfm dryer requred for application
Quincy Non-Cycling Direct Expansion dryers use a two-stage heat exchanger system to maintain consistent dew points. Freeze-ups are prevented and optimum performance is maintained by integrating the highest quality components and refrigeration control valves into our system. Only the most reliable and efficient aluminum, stainless-steel and copper material are selected for our premium heat exchanger.
10-250 cfm QPNC dryers emply an internal electronic no loss condensate drain. All auto drain functions and displays for 325 cfm and larger dryers are controlled by the panel mounted microprocessor.
Wet compressed air enters the integral 1st. stage air-to-air heat exchanger where it is precooled by the cold air returning from the integral evaporator. Precooling saves energy by reducing the heat load on the refrigeration system. After the air has been precooled, it flows into the air-to-refrigerant evaporator where its temperature is reduced to +39°F. This temperature reduction forces entrained moisture to condence. The mixture of condensed liquids and cold air then flow into the moisture seperator where the liquids are collected in the sump and removed by an automatic drain.
After liquids have been removed, the cold dry compressed air returns through the col side of the 1st. stage heat exchanger where it is reheated by the warm incoming air pipe sweating is avoided and air volume is increased by reheating.
The compressed air is now considered treated and ready for delivery to the system.
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