Wilo-Multivert MVI
Series description
Your advantages
- Corrosion-resistant impellers, diffusors and stage housings
- Drinking water approval for all components that come in contact with the fluid (EPDM version)
Construction
Non-self-priming, multistage high-pressure centrifugal pump in vertical design with in-line connections.
Application
- Water supply and pressure boosting
- Fire extinguishing systems
- Boiler feed
- Industrial circulation systems
- Process engineering
- Cooling water circulation systems
- Washing and sprinkling systems
Equipment/function
- Stainless steel pump in inline design (only MVI 1.. to 8..)
- MVI 1.. to 8..: PN16 version with oval flange; PN25 version with round flange
- MVI 70.. and 95..: PN16 and PN25 version with round flange
Scope of delivery
- MVI high-pressure multistage centrifugal pump
- MVI 1.. – 8..: Oval counter flanges with corresponding screws and O-rings (PN16 variant)
- Installation and operating instructions
Type key
Example: | MVI 7002/1-3/16/E/3-400-50-2 |
MVI | Vertical high-pressure multistage centrifugal pump |
70 | Flow rate in m3/h |
02 | Number of impellers |
1 | Number of trimmed impellers |
3 | Material 1 = 1.4301 (AISI 304); [only MVI 8.. and smaller] 2 = 1.4404 (AISI 316L) 3= pump housing EN-GJL-250 (cataphoretic coating), hydraulics 1.4301 (AISI 304); [only MVI 70.. and 95..] |
16 | Flange type 16 = flange PN16 (round or oval) 25 = flange PN25 (round or oval) P = Victaulic coupling [only MVI 8.. and smaller] |
E | Gasket type E = EPDM V = FKM (Viton) |
3 | 1 = 1~ (alternating current); [only MVI 8.. and smaller] 3 = 3~ (three-phase current) |
400 | Connection voltage in V |
50 | Frequency in Hz |
2 | Number of poles |
Technical data
- Electrical connection:
- 1~230 V (±10 %), 50 Hz only MVI 1.. – 8..
- 3~400 V (±10 %), 50 Hz
- ≤ 4 kW 230 V/ 400 V; Δ/Y
- > 4 kW 400 V/ 690 V; Δ/Y
- Fluid temperature of -15 to +120 °C (with EPDM), (-15 to +90 °C with FKM)
- Operating pressure max. 16/25 bar
- Max. inlet pressure of 10 bar
- Protection class IP 55
- Flange connections:
- MVI 1.. – 8.., PN 16; oval flange (G1 – G2)
- MVI 1.. – 8.., PN 25: Round flange (DN25 – DN40)
- MVI 1.. – 8.., PN 25: with optional Victaulic connections
- MVI 70../95.. PN 16/PN 25: Round flange (DN 100)
Materials
MVI 1.. to 8..:
- Impellers and stage chambers of stainless steel 1.4301 (AISI 304) (1.4404 (AISI 316) for aggressive media)
- Pump housing of stainless steel 1.4301 (AISI 304) (1.4404 (AISI 316) for aggressive media)
- Shaft, depending on type, of stainless steel 1.4301 (AISI 304) (1.4404 (AISI 316) for aggressive media)
- Gasket of EPDM/FKM (Viton)
- Housing cover of stainless steel 1.4301 (AISI 304) (1.4404 (AISI 316) for aggressive media)
- Housing bottom of stainless steel 1.4301 (AISI 304) (1.4404 (AISI 316) for aggressive media)
- Mechanical seal of B-carbon/tungsten carbide, SiC/carbon
- Jacket pipe of stainless steel 1.4301 (AISI 304) (1.4404 (AISI 316) for aggressive media)
- Bearing of tungsten carbide
- Baseplate EN-GJL-250
MVI 70../95..:
- Impellers of stainless steel 1.4408 (AISI 316)
- Stage chambers made of 1.4301 (AISI 304) stainless steel
- Pump housing made of cataphoretic-coated grey cast iron EN-GJL 250
- Shaft 1.4057 (AISI 431) stainless steel
- Gasket EPDM
- Housing cover made of 1.4301 (AISI 304) stainless steel
- Housing bottom made of 1.4301 (AISI 304) stainless steel
- Mechanical seal of B-carbon/tungsten carbide, SiC/carbon
- Pressure shroud made of 1.4301 (AISI 304) stainless steel
- Bearing of tungsten carbide
