Multistage Pump
The MVM, MVMC and MVMN pumps are non self-priming vertical multistage pump featuring in-line design, flanged or with Victaulic coupling with equally sized suction and discharge ports.
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Economical, reliable and convenient
Multistage Series offers the advantages of a conventional motor pump along with the compact and versatile In- Line design, giving an ideal solution to restricted space applications.
- Multi impeller design
- Sizes 32mm up to 200mm
- Flow range 5 – 300litre per second
- EN733 (DIN 24255) European Standard
- Small Footprint – space saving
- Maximum percentage of glycol: 30%
- Supported liquid temperature min. and max.: From -30°C to +120°C (EPDM) From -15°C to +120°C (Viton/FKM)
- Maximum ambient temperature: +50°C
- Maximum operating pressure bar/kPa: 25 bar/2500 kPa
- Degree of protection of the engine: IP 55
- Engine insulation class: F
- Certifications: NKV, WRAS and ACS
- The parts in contact with the liquid are made of stainless steel
| MATERIAL TABLE SELECTION | |||
| PUMP MODEL | IMPELLER/ DIFFUSER | BASE | FLANGES |
| MVM 32, 45, 65, 95 | Inox 304 | Cast Iron | Cast Iron |
| MVM 1, 3, 6, 10, 15, 20 S | Inox 304 | Inox 304 | Inox 304 |
| MVM 1, 3, 6, 10, 15, 20, 32, 45, 65, 95 X | Inox 316 | Inox 316 | Inox 316 |
LIQUID TABLE SELECTION
Type of mechanical seal (E1=STANDARD)
E1=BQGE=Carbon/Silicon carbide/AISI 316/EPDM STD
E2=QQGE=Silicon Carbide/Silicon Carbide/AISI 316/EPDM
V3=QQGV=Silicon Carbide/Silicon Carbide/AISI 316/FKM-Viton
V4=BQGV= Carbon/Silicon carbide /AISI 316/ FKM-Viton
E5=UUGE=Tungsten carbide/Tungsten carbide/AISI 316/EPDM
| LIQUID (WATER SOLUTION) | CONCENTRATION (%) | MIN/MAX TEMPERATURE (°C) | STANDARD (MVM 32-95) |
S (MVM 1-20) |
X (MVM 1-95) |
| Acetic acid | 10÷40 | +0/+70 | – | – | E1 |
| Citric Acid | 5 | +5/+70 | – | E1 | E1 |
| Hydrochloric Acid | 2 | +5/+25 | – | – | V3 |
| Formic Acid | 5 | +5/+25 | – | E1 | E1 |
| Phosphoric Acid | 10 | +5/+30 | – | – | E1 |
| Nitric Acid | 40 | +5/+30 | – | V3 | V3 |
| Sulfuric Acid | 2 | +5/+25 | – | – | V4 |
| Tannic Acid | 20 | +5/+50 | – | – | E1 |
| Tartaric Acid | 50 | +5/+25 | – | V3 | V3 |
| Deionized Water, Demineralized | 100 | +5/+110 | E1 | E1 | E1 |
| Sodium Bicarbonate | 6 | +5/+60 | – | – | E1 |
| Chloroform | 100 | -10/+30 | V4 | V4 | V4 |
| Oil In Water Emulsion | 100 | +15/+90 | V4 | V4 | V4 |
| Phosphates, PolyphosphaTes | 10 | +5/+90 | – | V3 | V3 |
| Ethylene Glycol | 10÷ 30 | -15/+120 | – | E1 | E1 |
| Propylene Glycol | 30 | -10/+100 | V3 | V3 | V3 |
| Sodium Hypochlorite | 1 | +5/+25 | – | – | V3 |
| Sodium Nitrate | 10 | +5/+60 | – | V3 | V3 |
| Diathermic Oil | 100 | +90/+120 | V4 | V4 | V4 |
| Mineral Oil | 100 | +90/+120 | V4 | V4 | V4 |
| Vegetable Oil | 100 | +70/+100 | E1 | E1 | E1 |
| Perchlorethylene | 100 | -10/+30 | V4 | V4 | V4 |
| Sodium Hydroxide | 25 | +5/+70 | E2 | E2 | E2 |
| Aluminium Sulphate | 10÷ 25 | +5/+50 | – | – | E2 |
| Ammonium Sulphat | 10 | -10/+60 | – | – | E2 |
| Ferric Sulphate | 10 | +5/+30 | – | – | E1 |
| Trichloroethylene | 100 | -10/+40 | V4 | V4 | V4 |
WE CAN HELP YOU CHOOSE THE RIGHT Multistage Pump FOR YOUR PROJECT
Masterflow’s range of multistage pumps are ideal for applications such as Run Around Coils, Boiler Feed, Primary and Secondary loops in heating water circuits. Manufactured from 304 or 316 stainless, they are also suitable for Ethylene and Propylene Glycol plus a range of other liquids including low concentrate acids, deionised water, reverse osmosis, and light oils.
Case Study
Bathurst Aquatic Centre
One outstanding feature of the MVM pumps is Model with motors larger than 5.5 kw the Mechanical Seal can be replaced without dismantling the motor from the pump ensuring streamlined servicing.
A good choice for their Higher efficiency, these multistage pumps are ideal for low flow/high head duty points on Chilled and Heating water applications.
For quick and accurate selection, click onto our selection software and select MVM Multistage from the Menu. Enter the flow and head then click ‘search’ for previews all possible options.
One outstanding feature of the MVM pumps is Model with motors larger than 5.5 kw the Mechanical Seal can be replaced without dismantling the motor from the pump ensuring streamlined servicing.
A good choice for their Higher efficiency, these multistage pumps are ideal for low flow/high head duty points on Chilled and Heating water applications.
For quick and accurate selection, click onto our selection software and select MVM Multistage from the Menu. Enter the flow and head then click ‘search’ for previews all possible options.
A sub variant of the standard Multistage is the Inverter range.
They can be operated by external VSDs or can be fitted with integral Inverter – refer to F and G range. Equipped with flow and /or pressure differential sensors, the Inverter model are ideal for HVAC applications.
The Masterflow Multistage are available in higher pressure rating (25 bar) these are ideal when installed in basements of high rise building with high static pressures resting on the pump.
Frequently asked Questions
Multistage pump are ideal for Heating water and Chilled water circuits when the required flow is less than 4l/sec and the discharge pressures are higher than 120kpa.
ENGINEERED SOLUTIONS FOR PUMPS, TANKS, CHILLERS, FILTRATION, VALVES & CONTROLS. Get a quote or contact us today
Masterflow is and has been a trusted name among Australia’s HVAC suppliers for over 20 years. We supply a wide range of pump types and can provide the ideal solution to the many and varied fluid requirements that face the industry. We pride ourselves on remaining agile, innovative, and having fast turn arounds. We are local! All our pumps are locally designed, built and manufactured here in Australia.
