Martin Water
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PRODUCTS  Industrial RO Systems

MARO Series

The MARO Series RO’s are complete, pre-engineered proven designs that produce consistent high quality water in flow rates up to 360000 GPD. The systems feature simple user-friendly controls, rugged construction, easy access for maintenance and installation. 

The systems can be supplied with several options that will help reduce energy, reduce the amount of water required for operation and even provide for water recycling.  Some of these options are:

l Low energy membranes (150 psi /225psi)

l High water recovery operation (depending on feed quality)

l Output controlled operation with variable speed drive

l Reject water recovery and reuse systems


Standard Features

l   5.0 um multi-cartridge pre-filter

l   Automatic inlet shut-off valve

l   Multi-stage centrifugal pump

l   Two flow meters

l   Programmable auto-flush feature

l   PLC system control

l   Clean-In-Place ports

Materials of Construction

l    Frame: Stainless steel 304 or Powder coated steel

l   Membrane Elements: TF Polyamide

l   Membrane Housing: FRP

l   Low Pressure Pipe: UPVC

l   High Pressure Pipe: Stainless Steel

l   Pump: Stainless Steel

Operating Parameters

l    Operating Pressure: < 300 psig

l   Maximum Recovery: 60% - 75%

l   Nominal Rejection: 95-99%

l   Operating Temperature: 2-35 ºC

l   Minimum Inlet Pressure: 30 psig 

l   Design Temperature: 25 ºC

Additional Options

l   Optional VFD systems                             

l   Feed Water ORP

l   Feed Water pH

l   Clean in Place (CIP) Unit 

Product Code

Capacity (Minimum)

Membrane Quantity

Motor (HP) 

Inlet (Inch)

Permeate (Inch)

DIMENSION             (LXWXH) (cm)

Ship Weight (kg)



MARO-24000

24000GPD (4000L/HR)

8040X4

5.5

11/2"

11/2"

310x120X165

696.00


MARO-36000

36000GPD (6000L/HR)

8040X6

7.5

2"

11/2"

450x120x165

715.00


MARO-48000

48000GPD (8000L/HR)

8040X9

15

2"

11/2"

450x120x165

770.00


MARO-60000

60000GPD (10000L/HR)

8040X12

15

2"

11/2"

550X120X165

795.00


MARO-72000

72000GPD (12000L/HR)

8040X16

15

2 1/2"

2"

550X120X165

880.00


MARO-90000

90000GPD (15000L/HR)

8040X20

15

2 1/2"

2"

550X120X165

965.00


MARO-120K

120000GPD (20000L/HR)

8040X24

20

3"

2 1/2"

750X120X165

980.00


MARO-150K

150000GPD (25000L/HR)

8040X30

25

3"

2 1/2"

750X120X165

1100.00


MARO-180K

180000GPD (30000L/HR)

8040X36

30

4"

3"

750X120X165

1185.00


MARO-210K

210000GPD (35000L/HR)

8040X42

40

4"

3"

750X120X165

1300.00


MARO-240K

240000GPD (40000L/HR)

8040X48

40

4"

4"

750X120X165

1380.00


MARO-270K

270000GPD (45000L/HR)

8040X54

40

6"

4"

750X120X165

1465.00


MARO-300K

300000GPD (50000L/HR)

8040X60

50

6"

4"

750X120X165

1550.00


MARO-360K

360000GPD (60000L/HR)

8040X72

60

6"

6"

750X120X165

1800.00


Remark: All weights and dimensions are approximate. Other custom designs are available upon request

maro-50b01