Requirement: 

A customer needed a solution for emptying a plastic drum with a bunghole. The requirements in detail:

• Medium: Sodium Laureth Sulfate (SLES) with a viscosity of 15,000 cps as well as other liquid surfactants, oils and organic compounds for cosmetics production.
• Operating parameters:
  • Target time: Discharge within 15 minutes
  • Motor: 220 V, single-phase motor, 60 Hz
• Challenge: Avoiding foam formation during conveying

Solution:

We offered the customer a progressive cavity pump with variable speed control that can be operated with both a 3-phase and a single-phase motor.

• Motor: Three-phase motor with quick-change coupling (SWK), 0.75 kW, 900 rpm, 230/400 V, 3.55 / 2.05 A, 50 Hz, IP55   (item no. 530-0040)
• Pumping unig: Eccentric screw pump model DS 40.1-SWK-PTFE-GLRD-1000, ideal for viscous media such as SLES   (item no. 651-0010)
• Accessories:
  • Motor protection switch IP55  (item no. 810-0021)
  • Stainless steel retaining bracket  (item no. 745-0198)

Optional extension:

• Single-phase motor: with quick-change coupling (SWK), 1-phase, 0.75 kW, 900 1/min, 230 V, 5.2 A   (item no. 530-0203)

Description:

Our solution was specially developed to meet the customer's requirements:

• Customer benefits:
  • The eccentric screw pump enables gentle pumping of the medium and minimizes foaming, which is a common challenge with SLES.
  • The variable speed control allows the pumping speed to be adjusted to ensure discharge in the desired time of 15 minutes.
  • The PTFE-GLRD seals ensure chemical resistance and durability when conveying cosmetic raw materials.
• Flexibility:
  • Compatibility with single-phase and three-phase motors enables use in different operating environments.
• Safety:
  • The motor protection switch reliably protects the motor against overloads.

Requirement: 

A customer was looking for a positive displacement pump for conveying a paste-like, food-compliant product. The creams are to be transferred from their transport containers into the intended production containers. Requirements in detail:

• Medium: Cream without solids, viscosity up to 12,000 mPas, main component Vaseline
• Delivery rate: 25 l/min, delivery as fast as possible
• Pressure: up to 8 bar
• Safety requirement: ATEX version for operation in potentially explosive atmospheres
• Specification: Food conformity (FDA-compliant materials)

Solution:

We offered the customer a progressive cavity pump with food-compliant components and ATEX certification:

• Motor: Three-phase motor with quick-change coupling (SWK), 0.75 kW, 900 1/min, 230/400 V, 3.55/2.05 A, 50 Hz, IP55   (item no. 530-0040)
• Pumping unit: Eccentric screw pump SD-ds 80.1-SWK-PTFE-GLRD-1100, especially suitable for viscous media and food-compliant applications  (item no. 654-0012)
• Seals: Seal ring set made of Viton/FEP (D=52), FDA-compliant  (item no. 840-0224)
• Accessories:
  • Motor protection switch, IP55  (item no. 810-0021)
  • Lifting device material stainless steel  (item no. 745-0198)

Description:

Our solution meets all customer requirements:

• Customer benefits:
  • The eccentric screw pump ensures that the cream is pumped evenly, quickly and yet gently without affecting the product.
  • All wetted parts are FDA-compliant and therefore ideal for use in the food industry.
  • The PTFE-GLRD seals offer chemical resistance and prevent the medium from penetrating sensitive pump parts.
• Flexibility:
  • Suitable for delivery heads of up to 8 bar and a viscosity of up to 12,000 mPas.
  • The stainless steel retaining bracket facilitates flexible use on different drum sizes.
• Hygiene:
  • The pump can be dismantled without tools, making it particularly easy to clean, which meets the requirements of the food industry.
• Safety:
  • ATEX certification enables safe operation in potentially explosive atmospheres.
  • The motor protection switch reliably protects the motor against overloads.