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MSC4000 - MSC15000 USER GUIDE
6.
MRD Drains
The MRD is designed to reliably discharge condensate while preventing the loss of valuable compressed
air. Rising condensate in the sump actuates a mechanical float switch operating the drain valve. The drain
valve remains open until the sump is empty. The MRD only discharges condensate. No compressed air
is wasted. Positive pressure from the compressed air system forces the condensate out of the sump.
The mechanical float is time proven, reliable and non-fouling. The sealed switch is designed so that
contaminates settle out below the drain valve to prevent fouling. The MRD is virtually trouble free, energy
efficient and easy to operate. A MRD should be installed at any condensate collection point in your
compressed air system.
MRD Technical Data
Model
MRD4080
MRD4085
Inlet Connection
3/4” NPT
3/4” NPT
Drain Orifice Size
7/16”
Cycle Time
On Demand
Open Time
On Demand
Operating Pressure
10 to 150 psi g
Operating Temperature
0 to 65ºC
Water Displacement
9 gpm @ 100 psi
16 gpm @ 100 psi
Condensate Holding Capacity
1.59 Liters
2.50 Liters
Electrical Enclosure
Alarm Contact
N.O. or N.C. (Form C)
Dimensions (L x W x H)
13 mm x 152 mm x 152 mm
432 mm x 152 mm x 152 mm
Shipping Weight
6.5 kg (14.3 lb)
8 kg (17.6 lb)
Operating Pressure (bar g)
Model MRD4080 Drain Capacity (gpm)
Model MRD4080 Drain Capacity (gpm)
10
2.8
5.0
25
4.4
7.8
50
6.3
11.2
75
7.8
14.0
100
9.1
16.2
125
10.0
17.9
150
11.0
19.6
