Magnetic Driven Pumps
Centrifugal pumps that use a sealed barrier (usually plastic) to isolate the pump's impeller from the motor. Within the impeller are magnets that are used to transfer the rotating force from motor drive magnets.
Considerations unique to magnetic driven pumps
- the magnets will attract iron and steel particles
- the connection between pump and motor is not direct and may become lost if loads or starting torque is high.
- the pump has close clearances within -- NOT desirable when handling abrasive solutions or "electroless plating solutions."
- the pump does not have a drive shaft that requires packing or a mechanical seal
"Mag drive pumps" a popular choice because they are considered "seal-less" and typically stop running before any leakage would occur. This is very desirable when using corrosive chemicals. For may applications with flow rates under 60 GPM, that require a thermoplastic pump, they generally cost less and are easier to maintain than pumps with mechanical seals. Mag drive pumps are available in large sizes that cover flow rates up to 3,000 GPM, for chemical and solvent services, for high temperature heat transfer oils to 800 F.
Thermoplastic Mag drive pump are usually constructed of polypropylene or Ryton however often could be constructed of PVDF (Kynar). In the larger sizes, they are metal with a fluoropolymer (ETFE) lining. The fluid would not come in contact with the metal - it is there for additional strength.
Metallic Mag drive pumps are used primarily for corrosive chemicals when seal failures cannot be tolerated. Higher in initial cost to purchase but often offer a payback in long term maintenance costs. Designs for chemical process and API 685 specifications. Pumps for hot oils to 800F or 400F hot water Heat transfer circulation. Go to this type of pump.
Thermoplastic Pumps
FT Group - Pumps for sever service
UC Series - Magnetic drive pumps
match ANSI B73.1
dimensions and hydraulics. Pumps are designed and manufactured to
heavy-duty standards, which meet high levels of corrosion resistance, durability,
efficiency and safety for aggressive and hazardous chemical applications.
Cast iron housings for strength are lined with ETFE material for higher
temperature applications. Flow rates to 330 GPM. details
DB Series - Horizontal Magnetic Sealed Centrifugal Pumps - Designed for sever duty - Fiberfilled polypropylene or PVDF housing materials. Carbon bushing allow for long service life -- Teflon is optional. High strength rare earth magnets are lighter in weight - compact in size. Handle liquids with specific gravity to 1.8. 1/8 HP to 15 HP - Flow rates to 200 GPM - details
SP Series - Magnetic Drive Self-Priming Pumps are designed with deep-lift capabilities and lightning-fast priming with the advantages of neodymium magnetic drive technology and corrosion resistant polypropylene and PVDF to handle the most difficult applications with no seal replacement, no leaks and the capability to run-dry without damage. - Flows to 225 GPM - details
VKC Series - Vertical Magnetic Sealed Centrifugal Pumps - Similar design specifications as above DB pumps (above). Polypropylene and PVDF (Kynar) construction - 1/2 HP to 3 HP - Flow rates to 100 GPM - details
LG Group - Pumps for corrosive to sever service
MD Series - Pumps for
mild corrosive chemicals design with uncoated barium ferrite driven impeller magnet, glass
filled polypro head / impeller and Nitrile o-ring cover seal. Most use titanium
shaft and thrust washers. Fluid temperature up to 150 F. Details for models 1/200 to 1/8
HP.
SC Series - Pumps for semi corrosive chemicals designed with
encapsulated driven impeller magnet, glass filled polypro head / impeller and Nitrile
o-ring cover seal. Shaft and thrust washers are 99.5% pure alumina ceramic.
Fluid temperature up to 150 F. Details for models 1/35 to 1/8
HP.
HC Series - Pumps for high corrosive chemicals designed with
encapsulated driven impeller magnet, glass filled RytonŽ head / impeller and VitonŽ
o-ring cover seal. Shaft and thrust washers are 99.5% pure alumina ceramic.
Carbon impeller bushing design offers low friction that allows the pumps to run dry
without damage. Fluid temperature up to 200 F. Details for models 1/3 to 3/4
HP.
CK Series - Pumps for high corrosive chemicals designed with
encapsulated driven impeller magnet, carbon filled KynarŽ head / impeller and VitonŽ
o-ring cover seal. Shaft and thrust washers are 99.5% pure alumina ceramic.
Carbon filled Teflon impeller bushing design offers low friction and corrosion resistance
and abrasive resistance for long life. Fluid temperature up to 200 F. Details for models 1/3 to 3/4
HP.
M Group - Pumps for corrosive to sever service
TE Series - Pumps for high corrosive chemicals designed with encapsulated driven impeller magnet, glass filled RytonŽ or PVDF head / impeller and VitonŽ o-ring cover seal. Shaft and thrust washers are ceramic. Optional carbon impeller bushing design offers low friction that allows the pumps to run dry without damage. Models are offered that require a self priming pump. Fluid temperature up to 200 F. Details for models 1/3 to 10 HP.
I Group - Pumps for corrosive to sever service
MDH Series - Pumps for high corrosive chemicals designed with encapsulated driven impeller magnet, glass filled polypropylene or flouropolymer PVDF head / impeller and VitonŽ o-ring cover seal. Shaft and thrust washers are ceramic. Optional carbon impeller bushing design offers low friction that allows the pumps to run dry without damage. Models are offered that require a self priming pump. Fluid temperature up to 200 F. Details for models 1/3 to 3 HP.
TB Series - Magnetic drive pumps match ANSI B73.1 dimensions and hydraulics. Pumps are designed and manufactured to heavy-duty standards, which meet high levels of corrosion resistance, durability, efficiency and safety for aggressive and hazardous chemical applications. Cast iron housings for strength are lined with ETFE material. Flow rates to 1275 GPM. Details
Dickow Metallic Magnetic Driven Pumps
Dickow Pumps are magnetic sealless
centrifugal pumps for the chemical process industry. Horizontal
frame or close-coupled - or vertical inline process pumps. For solvents,
hydrocarbons, heat transfer solutions and other hazardous chemicals.
Single stage and multi stage pumps are constructed of steel, stainless
steel or Hastelloy C - some are self priming. Working pressures to
600 PSI, flows to 3000 GPM, heads to 2000 feet and temperatures to
800F. Some models are constructed to meet API 685 standards. Built like a Mercedes in Germany - Local pumps and parts in
stock. Details
