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Pumps for highly viscous liquids

B-70V-SR    Progressive Cavity Pump Tube


For applications in the food, pharmaceutical and cosmetics industry, no special shaft joint protection is needed.

Pump Tubes

Pump tubes with different flow rates and length are available for the Lutz B70V-SR. The speed reducer is mounted directly on the pump tube. This reduces the relatively high speeds of the universal or compressed-air motors to a suitable speed for the pump tube of around 690 rpm. The pump tube, drive shaft and eccentric screw are made of Stainless Steel (316). Do not run dry or against closed valve.

Tube diameter: 54 mm (2.12")

Length: 1000 mm (39.4") or 1100 mm (43.3")

Operating Data

Quantity: up to 13 GPM
Delivery head: up to 200 FT (87 PSI)
Temperature of medium: up to 284 °F
Viscosity: up to 50,000 cps (with MD-2 air motor)


Bypass valves, hoses, hose clips, dosing devices, electronic flow meters, batch dosing appliance with time control and other accessories are available on request.



Wetted parts


Housing and rotor:

Stainless Steel (316)


Viton® (FPM)

Mechanical seal:

Carbon/SS, Viton® or SiC/SiC , Viton®


PTFE soft packing, safe for use with foodstuffs

Drive shaft:

Stainless Steel (316)

Stator materials:

NBR light, Viton®, PTFE

Examples of liquids:

Chemical industry: acids, lyes, sludge, viscous pastes, dispersions, adhesives, etc.

Cosmetics industry: creams, soaps, toothpaste, shampoos and raw materials for soaps

Confectionery industry: honey, syrups and preserves

Paint and lacquer factories: paints, lacquers and pastes

Food industry: milk, whey, cheese, spread and ketchup

Mineral oil industry: high-viscosity oils and fluid greases.

Motors available: