:: OUR PRODUCTS ::

General Description  

The design of the Tuthill Industrial Series incorporates externally timed impellers that are supported in the fluid chamber by double row, ball bearings located out of the product stream.  This design enables the industrial Series to handle highly viscous abrasive slurries, corrosive acids or suspended solids without degradation, aeration or contamination of the product.  

PUMPING PRINCIPLE :  

Here’s how it works :

Rotating impellers develop a vacuum at inlet, drawing material into the cavity…positive action of the impellers displaces material, forcing discharge at pump outlet.  Ports are always open; sealing action between impellers and housing prevents fluid flow return.

Parag Process Pumps

For the most demanding applications-Slurries, high viscosity products, suspended solids, chemicals, high temperature liquids, resins, sewage, scum, paints, plastics, pharmaceuticals, foods, shear sensitive fluids.

Rotary positive displacement, circumferential impeller design, heavy-duty construction provide longer life in touch pumping applications.

High Viscosity

These pumps can handle materials with viscosities to 40,000,00 cps including silicones, adhesives, pastes, slurries, suspended solids, semi-soilds etc.

Run Dry without Damage

Circumferential impellers rotate within the fluid chamber without contact between themselves or the chamber walls. The slow positive movement of the impellers, the lack of contact between rotating and stationery elements and the rigidly controlled tolerance permits the pump to operate efficiency where other positive displacement pumps fail. They can run dry without damage.

High Temperature

Pumps can be furnished suitable for use with fluid temperature to 125°.

Shaft Seals

Shaft seals are teflon impregnated graphite, square braided packing. Pumps are also available with throttle bushings, lantern rings special packing or mechanical face-type seals single, double or cartridge design mechanical. Seals may be constructed of special materials if the application require it.

Externally Timed Gears

Timing gears used to synchronize the action of the pump impellers are separated from the fluid chamber, thus eliminating a source of agitation and breakdown of the material being pumped as well as providing a clean source of great lubrication.

Slow Speed For Longer Wear and Longer Shear

Slow speed operation of these pumps creates slow internal velocities which result in increased wear life, impart less shear to the product and enable the pump to handle high viscosity fluids.

For Transfer

Parag process pumps can be used for transfer.

External Bearing Chamber

Material being pumped through the fluid chamber is separated from lubricated bearings or lubricant  chambers, eliminating contamination.

Material Of Construction

Process pumps are provided as standard in 316 stainless steel. All parts are interchangeable and replaceable in the fluid.

Wide Range Of Drives and Mountings

Models 25 to 48 and 50 can be provided with a built-in 3 to 1 reduction for use with motor speed drives. Pumps can be offered with a selection of standard motors, gear motors, variable speed drives, power take offs, air motors etc. Each drive and pump combination is available mounted on a base plate suited to the specific application.

• External timing gears in separate oil filled reservoir provide safe, synchronous gear action.

• Constant diameter shafts (no steps in torque transmission areas) for maximum strength and minimum deflection.

• Housing, bushing, positioned under maximum radial load, assuring minimum shaft deflection.

• Packing and stuffing box is standard construction. Packing glands is split and constructed in 316 SS. Pumps can also be outfitted with mechanical seals.

• Single lobe gears provide maximum strength and minimum shear contact in fluid chamber.

• No metal to metal contact in the fluid chamber.

• Housing & gear case are foot mounted to minimize distortion and vibration.

• Casings and gear case are precision machined and dowel pin aligned. Procedure results in full interchangeability should field replacement be required.

• Faceplate (cover) accessible and easily removable for easy cleaning and inspection.

• Wing nuts allow easy removal of gear for cleaning and inspection.

• Faceplate bushings provide simple bearing supports for the gears-no cantilevered shafts as in some competitive designs.

Example of Products Handled