Water Softener
The most common cause of overheating and failure of boiler tubes is when hard scale forms on the boiler tube surfaces. This scale comes from calcium and magnesium in the water. But overheating and eventual failure of the boiler tubes isn’t the only side effect. Efficiency is also decreased in the short-term because of the scale's insulating effect on the heat transfer surfaces. A layer of scale just 1/8 inch thick can cause as much as 20-25% loss in efficiency - heat lost right up the boiler stack.

Miura's new MW regeneration process is designed to deliver a more consistent, highly softened water supply, with the added reliability of double tank alternation, our system integrated Colormetry hardness detector, and a control panel that interfaces with Miura's MOM and ER dashboard systems. Miura Water Softener and Hardness Detection can keep your boiler running smoothly and efficiently.
MW-150U
1300 GPH
MW-250U
2000 GPH
MW-400U
2600 GPH
MW-600U
4750 GPH
MW-1000U
7820 GPH
MW Series Comparison Chart
MW-150U MW-250U MW-400U MW-600U MW-1000U
Resin volume 5.3 x 2 CFT 8.8 x 2 CFT 14.1 x 2 CFT 21.2 x 2 CFT 35.3 x 2 CFT
Standard flow rate 1,300 GPH 2,000 GPH 2,600 GPH 4,750 GPH 7,920 GPH
Pressure loss (at normal operation) 10 PSI 17 PSI 28 PSI 10.2 PSI 17.4 PSI
Required salt per regeneration 29.8-79.4 LBS 49.6-132.2 LBS 79.4-211.6 LBS 120-318 LBS 199-530 LBS
Hardness removal capacity per generation (x1000 grain CaCO3) 82-120 136-199 214-315 670-1096 1038-1641
Maximum salt storage weight 353 LBS 529 LBS 860 LBS 1100 LBS 1830 LBS
Raw water temperature range 39-104°F
Raw water pressure range 22-71 PSI 22-71 PSI 22-71 PSI 26-71 PSI 26-71 PSI
Regeneration drain Drain per regeneration 260-480 GAL 480-565 GAL 770-1000 GAL 1290-1695 GAL 2165-3015 GAL
Peak flow 4.6-8.7 GPM 12.8-14.5 GPM 17.8-23.6 GPM 40-55 GPM 54-87 GPM
Power supply 100–220 VAC, 50/60 Hz, single-phase
Rated power consumption 22 W 22 W 22 W 42 W 42 W
Electric capacity 22 VA 22 VA 22 VA 42 VA 42 VA
Connection diameter Inlet/outlet port 1 1/2" (Internal thread: accessory piping) 2-1/2” CLASS150 PVC FLANGE 3” CLASS150 PVC FLANGE
Drain port 1" (External thread: control valve) 2” CLASS150 PVC FLANGE
Dry weight Water softener unit 474 LBS 838 LBS 1323 LBS 1875 LBS 3021 LBS
Brine tank 33 LBS 44 LBS 77 LBS 155 LBS 199 LBS
Operational weight Water softener unit 872 LBS 1466 LBS 2183 LBS 3264 LBS 5800 LBS
Brine tank 882 LBS 1213 LBS 2205 LBS 2757 LBS 4477 LBS