K Series Industrial

K-Series Commercial & Industrial RO Systems

Designed to produce low dissolved solids water from tap or well water, these industrial-grade RO systems use high-efficiency reverse osmosis membranes for reliable, long-term performance.

Applications include semiconductor manufacturing, boiler feed water, pharmaceutical production, municipal water treatment, water reuse, food and beverage processing, bottling plants, and more.

The AMI K-Series RO systems are built using proven, reliable components and mounted on sturdy powder-coated steel frames. Years of design experience are incorporated to ensure ease of maintenance and performance optimization.

Series K systems utilize 8” diameter, 40” long RO membrane elements. Pressure vessels are mounted horizontally and contain multiple elements per vessel for high-volume throughput.

K-Series Commercial Industrial RO System

Series K Commercial Industrial RO Systems Ordering Information

Model No.	RO System Capacity			Membrane Elements	Line Sizes (NPT, Inches)			System Dimensions (in/cm)			Approx. Shipping Weight (Lb/Kg)
Model No.	GPM	GPD	m³/hr	Membrane Elements	Inlet	Perm.	Conc.	Length	Depth	Height	Approx. Shipping Weight (Lb/Kg)
K-48B	20	28,800	4.5	4	2	1½	1½	120/305	44/112	75/191	1,310/594
K-68C	30	43,200	7	6	2	1½	1½	154/391	44/112	75/191	1,425/646
K-98C	40	57,600	9	9	2	1½	1½	154/391	44/112	75/191	1,735/787
K-128D	55	79,200	13	12	3	2	2	194/493	60/152	76/193	2,005/909
K-168D	75	108,000	17	16	3	2	2	194/493	60/152	76/193	2,275/1,032
K-208D	95	136,800	22	20	3	3	2	194/493	60/152	76/193	2,645/1,200
K-248D	115	165,600	26	24	4	3	2	194/493	60/152	76/193	2,910/1,320
K-288D	135	194,400	31	28	4	3	2	194/493	60/152	76/193	3,280/1,488
K-368F	175	252,000	40	36	4	3	2	288/731	60/152	76/193	3,795/1,721
K-428F	200	288,000	45	42	4	3	2	288/731	60/152	76/193	5,275/2,392
K-488F	225	324,000	51	48	4	3	2	288/731	60/152	76/193	5,660/2,567
K-548F	250	360,000	57	54	6	4	3	custom	custom	custom	7,140/3,245
K-608F	275	396,000	63	60	6	4	3	custom	custom	custom	8,680/3,945
K-668F	300	432,000	68	66	6	4	3	custom	custom	custom	10,285/4,675
K-728F	325	460,000	74	72	6	4	3	custom	custom	custom	11,890/5,404

Note: Skid dimensions do not include CIP.

Notes and Voltage/ Ordering Information

Systems rated at 77°F (25°C) using 2000 ppm feed water and approx. 225 psi (16 kg/cm²) pressure. System capacity changes significantly with water temperature and feed TDS. For higher TDS, a water analysis must be supplied and could result in modifications to the system.
Chlorine must be removed with a carbon filter or with chemical injection prior to the RO System, if present in the feed water.
Water must be pretreated by softener or antiscalant to avoid scaling the membranes.
All dimensions and weights are approximate.

Please add our voltage codes to the end of the model number when ordering:
Example: J-84B-236 = 220/230v/3 ph/60 Hz

Voltage Codes

Single Phase Not Available

236= 220 or 230v/ 3ph/ 60hz
436= 460 or 480v/ 3ph/ 60 Hz

235= 220v/3ph/50hz
335= 380v/3ph/50hz

Over 40 years of experience in reflected in our quality
Manufactured in the USA in our ISO 9001:2015 Certified Facilities
Conservatively engineered for reliable, long term performance
Factory tested to ensure trouble-free operation
Heavy duty powder coated frame
Stainless steel high pressure components, stainless steel pump
Microprocessor controlled operation

Standard Equipment

Thin Film Composite Membranes
Stainless steel multi-stage centrifugal pump
FRP pressure vessels
Polypropylene 5M filter housing for K-48B& K-68C, 316SS housing for larger models
316SS high pressure piping and Sch. 80 PVC low pressure piping
Motorized automatic inlet feed valve
Feed pump throttling valve, SS, or VFD Drive
Panel mounted SS flow control valves
Automatic membrane feed flush with permeate flush option

Low inlet pressure switch
High pressure switch
4) Panel mounted liquid filled pressure gauges: Filter in/out, pump, concentrate
Panel mounted flowmeters: product & concentrate
Product TDS (or Conductivity) with digital display readout
Cleaning ports
System on/off with 2-level tank floats
Heavy duty powder coated steel frame

Microprocessor Controller for Automatic Operation (Standard)

Monitors and/or Controls:

Inlet valve
Delayed start-up of high pressure pump
Feed water flush at system shut-down
Low pressure and high pressure switches
On/Off with storage tank level
Pre-treatment backwash/lockout
Permeate TDS (or conductivity)
Feed TDS (or conductivity) & percent rejection
Water Temperature
Operating hours
RO tank full override
Auxiliary pump or valve control (optional)

Controller Features:

Backlit LED Display or optional Touchscreen
Multi-function keypad or optional Touchscreen
Alarm notification
Programmable time delays, set-points and
flush mode
Visual indicator alarm light

I-ROC300 Controller for Automatic Operation

Optional Equipment

Stainless steel boost or repressurization pump
pH monitor for feed or for permeate
Chemical injection
Pre-treatment: Softener, carbon, media
VFD Drives
ORP monitor/controller
Filter housing upgrade to SS
Turbidity monitor
Permeate divert to drain
UV system, feed or permeate
FRP membrane housings
Low energy membranes
Clean-in-place doubles as a permeate flush system
PLC with 10” Touchscreen

PLC Controller

Semiconductor
Boiler feed
Pharmaceutical
Municipal
Water Reuse
Bottling
Rinse Water
Food Processing
Bottled Water
Hotels, Resorts
Beverage
Hospitals
Laboratory
Municipal
Institutions
Commercial
Manufacturing
And a wide variety of other applications

Optional Equipment
Stainless steel boost or repressurization pump pH monitor for feed or for permeate Chemical injection Pre-treatment: Softener, carbon, media VFD Drives ORP monitor/controller Filter housing upgrade to SS	Turbidity monitor Permeate divert to drain UV system, feed or permeate Low energy membranes Clean-in-place doubles as a permeate flush system PLC with 10” Touchscreen

K Series Industrial

K-Series Commercial & Industrial RO Systems