Lutz Progressive Cavity Drum Pump
B70V-D/DA 12.1 and 25.1

Lutz, Progressive Cavity Pump, B70V-D/DAThe B70V-D/DA is a powerful eccentric screw pump for semi-viscous or even highly viscous, tough media right up to their flowability limits. For applications in the food, pharmaceutical and cosmetics industry, no special shaft joint is needed. The pump is either driven by 3-phase motors or compressed air motors.

Liquid examples:
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


  • For for semi-viscous or even highly-viscous liquids from 1- 100.000 cps (1- 100.000 mPas)
  • Positive displacement pump with bearing flange according to eccentric screw principle
  • With electrical or air-driven drive motors
  • For mobile and stationary use
  • Easy detachable pump tube
  • Explosion-proof version available


  • Smooth flow
  • Constant volumetric flow
  • Quiet operation
  • Easy handling
  • Easy to clean
  • Minimum wear

Sealing system:
Mechanical seal (MS) or packing gland (St)

Drive shaft :
Torsion shaft (TS) or universal joint shaft (UJ)

Immersion length:
39" (1000 mm)

Lutz, Progressive Cavity Pump, B70V-D/DAB70V-D/DA (Ex) pump tubes are "Zone 0" approved in combination with the original Lutz motors ME I 6 Silver Star (Ex) / MD-1 (Ex) / MD-2 (Ex) in accordance with standards for use in hazardous locations.

Technical Data

B70V-D/DA 12.1 B70V-D/DA 25.1
Housing: Stainless steel (316) Stainless steel (316)
Seals: Viton® Viton®
Mechanical seal:   Carbon/SS, Viton®
SiC/SiC, Viton®
Carbon/SS, Viton®
SiC/SiC, Viton®
Packing gland: PTFE soft packing, safe for use with foodstuffs PTFE soft packing, safe for use with foodstuffs
Drive shaft:   Stainless steel (316) Stainless steel (316)
Rotor: Stainless steel (316) Stainless steel (316) 
Stator:  PTFE NBR light, Viton®, PTFE 
Nominal diameter: 2.12 in
54 mm
2.12 in
54 mm
Temperature of medium:  up to 284 °F (PTFE)**
up to 140 °C (PTFE)** 

up to 176 °F (NBR
up to 80 °C (NBR)

up to 284 °F (Viton®)
up to 140 °C (Viton®)

up to 284 °F (PTFE)**
up to 140 °C (PTFE)**

Hose connection: 1 1/2" male BSP
1 1/2" NPTF adaptor
or Tri Clamp
1 1/2" male BSP
1 1/2" NPTF adaptor
or Tri Clamp
Length:*** 39"
1000 mm 
1000 mm 

Operating data

B70V-D/DA 12.1 B70V-D/DA 25.1
Delivery rate:* up to 3.1 GPM
up to 12 l/min
up to 6.6 GPM
up to 25 l/min 
Delivery head:* up to 200 ft.
up to 6 bar
up to 260 ft.
up to 8 bar
Viscosity: 1 - 100.000 cps
1 - 100.000 mPas 
1 - 100.000 cps
1 - 100.000 mPas 


3-phase motor 1.1 kW / 1.5 HP for B70V-D 12.1 and 25.1

Lutz, Progressive Cavity Pump, B70V-D/DA

Reliable and persistant 3-phase motor with cable terminal box.

  • Smooth and quiet operation
  • Easy to maintain
  • 230/460 V / 60Hz
  • 1.1 kW / 1.5 HP
  • 850 rpm
  • TEFC splash-proof in accordance with protection class IP 54

Compressed air motor 8-DA for B70V-DA 12.1 and 25.1

Lutz, Progressive Cavity Pump, B70V-D/DA

Compact and powerful air-driven motor.

  • Robust and powerful
  • Delivery flow is easy to control
  • Overload-proof
  • 1.7 kW / 2.3 HP at 87 PSI (6 bar) operating pressure


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