Mechanical Sealed design for sticky and abrasive liquids
Applications
The sealed Lutz pump tube is designed
that it can handle light abrasives, liquids that harden, liquids that crystallize or which
are sticky. Clear liquids can be best handled with the MSL sealless design. It is suitable for
pumping slightly viscous, aggressive and non-aggressive liquids. The pump tube
is ideal for transfer out of drums or containers. The pump tube is non-lubricated
and will not contamination of the liquids pumped. It is not suitable for flammable
liquids except when constructed of stainless steel.
Examples of liquids pumped
Acids, Caustics, Plating Solutions,
Phosphates, Sulfates, Nitrates, Chlorates, Paints and Inks, Hydroxides, Sulfites.
Design Features
Lutz pump tubes are immersible
centrifugal pumps. The impeller or rotor pumps liquid up the pump tube and discharged
through the outlet near the top of the pump. The drive shaft (high nickel or
stainless steel) of this pump tube is sealed with a Viton ceramic mechanical seal.
Two types of pumping elements are available: axial-flow = R (rotor) and radial-flow = L
(impeller). The rotor is ideal for most transfer application -- it produces the most
flow rate (30 - 45 GPM) at moderate pressures (10-18 PSI). The impeller is used when
higher pressure (30-35 PSI) is desired. Conversion in the field from rotor to
impeller is quite simple. The actual pump flow / pressure is dependent upon the
motor selected as is the maximum viscosity and solution specific gravity. Generally,
rotors are suitable for up to 900 cps and 1.8 Sp. Gr. -- impellers up to 1150 cps and 2.0
Sp. Gr. For best assurance of desired results, please provide us with details for
final selection.
A handwheel is used to attach the pump
tube to the motor -- it is simply turned to tighten. The hand wheel also serves as a
protection device in the event of the pump being dropped and is used as a hand support
during transfer or when the pump is hung in the wall bracket.
Accessories supplied with poly pump tube
include: wall bracket, 8 feet 3/4" ID PVC tubing, hose clamps and barrel adapter.
Stainless and Hastelloy pumps include: wall hanger, 10' bonding wire, (2) 6'
grounding wire. Aluminum pump includes wall hanger. Optional quick disconnect
fittings, larger tubing, and other accessories are available for all models.
|
MSL-PP polypro |
MSL-SS stainless |
MSL-AUL aluminum |
HC-MS Hastelloy C |
| Pump tube (body) |
polypropylene |
stainless steel |
aluminum |
Hastelloy C |
| shaft |
SS or Hastelloy C |
stainless steel |
stainless steel |
Hastelloy C |
| impeller / rotor |
polypropylene |
Tefzel |
Tefzel |
Tefzel |
| lower bearing |
PTFE |
carbon */Tefzel |
carbon / Tefzel |
sintered |
| seals |
ceramic, Viton |
ceramic, Viton |
ceramic, Viton |
ceramic, PTFE |
| Maximum Temperature |
122 F |
212 F |
212 F |
248 F |
* Optional Rulon bushing should be used for
Nitric Acid |