Series MD-80 Sealless Magnetic Drive Pump
VQ-MD80
Close-coupled sealless centrifugal pump with a synchronous magnetic coupling, for aggressive, toxic and expensive media where a dynamic seal is not acceptable.
- FLOW
- to 90 m³/h
- HEAD
- to 55 m
- PRESSURE
- PN16
- TEMPERATURE
- -30 to +180 °C
Why it is specified
No dynamic seal, so nothing to leak and nothing to flush. The drive torque passes through a containment shell, and the rotor runs on silicon carbide bearings lubricated by the pumped liquid. Specified where a seal failure would be a release rather than a drip.
Typical applications
- Acids and caustics
- Electroplating
- Heat transfer fluid circulation
- Pharmaceutical intermediates
- Solvent transfer
Options and executions
- ATEX zone 1 execution
- Heating or cooling jacket
- Liquid presence detection and dry-run cut-out
- Oxygen service cleaning and certificate
- Power monitor with low-load trip
- Secondary containment with leak detection
The full table.
Figures cover the whole series. The variant table below narrows them to a part number.
PERFORMANCE
- Capacity
- 0.5 to 90 m³/h
- Differential head
- 5 to 55 m
- Speed
- 1,450 or 2,900 rpm, 50 Hz
- Impeller type
- Closed radial, keyed to the inner magnet assembly
- NPSH required
- 1.5 to 4.2 m, by size and duty point
- Decoupling torque
- 28 to 310 Nm, by coupling size
- Motor power
- 0.37 to 30 kW, IE3
MATERIALS
- Casing
- 1.4571 stainless steel, or PFA-lined ductile iron
- Impeller
- 1.4571 stainless steel, or PFA-lined
- Containment shell
- Hastelloy C-276, 0.8 mm, or sintered ceramic
- Bearings
- Silicon carbide, product lubricated
- Shaft
- Silicon carbide, static
- Magnets
- Samarium cobalt, rated to +180 °C
- Gasket
- PTFE envelope, or FFKM for the lined execution
CONNECTIONS AND RATINGS
- Suction
- DN32 to DN80, EN 1092-2 flanged
- Discharge
- DN25 to DN65, EN 1092-2 flanged
- Pressure rating
- PN16
- Maximum working pressure
- 16 bar at 20 °C, 11 bar at 180 °C
- Temperature range
- -30 to +180 °C, to +120 °C lined
- Dry running
- Not permitted without the liquid detection option
- Design standard
- Dimensions to EN 22858 where the frame allows
Stocked frame sizes.
| PART NUMBER | SUCTION / DISCHARGE | CAPACITY | WETTED MATERIAL | MOTOR |
|---|---|---|---|---|
| VQ-MD80-025-S | DN32 / DN25 | to 12 m³/h | 1.4571 | 0.37 to 3 kW |
| VQ-MD80-040-S | DN50 / DN40 | to 32 m³/h | 1.4571 | 1.5 to 11 kW |
| VQ-MD80-065-S | DN80 / DN65 | to 90 m³/h | 1.4571 | 5.5 to 30 kW |
| VQ-MD80-040-P | DN50 / DN40 | to 28 m³/h | PFA lined | 1.5 to 11 kW |
MD-80, DS-MD80
The datasheet is issued with the selection rather than downloaded blind, so the figures that arrive are the ones for your duty point. Ask for it with the quotation and it comes back as a PDF.
What is in it
- Performance curves and decoupling torque tables
- Containment shell eddy current loss by shell material
- Chemical compatibility notes by wetted material group
- Sectional drawing and bearing arrangement
- Dry running and minimum flow limits
Elsewhere in the catalogue.
CP-150
Single-stage, back pull-out end-suction pump to EN 733, for clean and lightly loaded liquids in process, cooling and transfer duty.
GV-200
Top-guided single-seat globe valve with a multi-spring diaphragm actuator and a digital positioner, for modulating control on liquid, gas and steam.
BF-300
Wafer and lugged resilient-seated butterfly valve with a moulded liner, bi-directional and bubble tight to the full rating, for isolation on water, air and neutral media.
FH-400
Stainless steel single-bag filter housing with a swing-bolt closure and an internal restrainer basket, for coarse and medium filtration on process and utility lines.
Quote the MD-80 for your duty.
Send the process data and the line size. The quotation comes back with the selection, the calculation and the lead time on the stocked variants.
Vanteq Industrial is a fictional company created for demonstration purposes. This product does not exist. The specifications, performance figures, materials and datasheet references on this page are illustrative and must not be used to select, size or buy equipment.