Tspumps Logo open menu burger icon

Sanitary Self Priming Twin Screw Pump

The Sanitary Self Priming Twin Screw Pump has been produced specifically for hygienic and sanitary applications within the food, chemical and pharmaceutical industries.

 

Contact us for pricing
Details
Features & Applications
Tech Info
Performance

This pump is extremely robust and, including its EHEDG compliance, is a very versatile pump that can be used for a vast range of applications, including CIP and SIP, suction, feeding, filling, flush, displacement, loading and unloading, and dosing.

The Sanitary Screw Pump is entirely machined from cast Stainless Steel AISI 316L with a surface roughness of <0.8 as standard (<0.5 on request) to provide increased corrosion resistance. Competitors units employ a cast iron gearbox with epoxy paint which can become eroded over time and need replacing/repairing.

The pump shafts are constructed from Duplex Stainless Steel 1.4462 to provide extra rigidity in operation and the pump can be fitted with a number of different sealing options and elastomer materials to suit almost any application. The Double Screw Pump design is a combination of all the best advantages of Lobe, Peristaltic, Centrifugal & Circumferential Piston Pumps. The result is an incredibly versatile and robust pump that can be used for a plethora or even a combination of applications within enumerative industries.

Features

  • Double screw
  • Speed range from 100 – 3600 rpm
  • Fully EHEDG Compliant
  • Pulsation free pumping of both thin and highly viscous fluids from 0.5 – 1’000’000 cPs
  • Large Free Passage of Solids up to 60 mm in diameter
  • Dry Run
  • Self Priming up to 8 m
  • Reversible (8 Bar Max Discharge Pressure as standard, if up to 16 bar, bearing arrangement needs to be adjusted)
  • Accurate flow control from 0.07 – 0.46 l/rev
  • Discharge Pressures up to 16 Bar
  • Variable fluid temperatures up to 140ºC
  • Low NPSHr requirements, <2 m
  • CIP/SIP friendly – minimal dead spaces
  • Suitable for Shear Sensitive Fluids
  • Suitable for pumping fragile solids
  • Can be used for CIP feeding as well as product pumping – No need for a separate Centrifugal Pump for CIP.
  • Wide variety of connection types
  • Optional Heating & Cooling Jackets
  • Optional large pitch screws for increased capacity and solids passage

Screw Pump Applications

  • Process Pump and CIP Pump
  • Suction
  • Feeding
  • Filling
  • Displacement
  • Supply
  • Flush
  • Dosing
  • Loading, unloading and displacement
  • CIP (Cleaning in Place) and SIP (Sterilisation in Place)
  • Product displacement
Technical Information
Maximum Capacity 95 m³/hr
Maximum Viscosity Up to 1’000’000 cPs
Maximum Pressure Up to 16 Bar
Maximum Temperature Up to 140 ºC
Maximum Solids Passage 60mm
Surface Roughness <0.8 as standard, <0.5 upon request
Speed Range 100 – 3600 rpm
Self-Priming Up to 8m
Materials Cast Stainless Steel AISI 316L

Its operation is based on the counter-rotation of 2 screws or rotors in the pump casing. Both screws are mounted onto their own shafts which are supported by bearing cartridges mounted directly onto the pump casing. One of the pump shafts is externally driven and an internal gear assembly drives the other shaft in the opposing direction. The screws rotate synchronously in opposing directions without touching.

Sanitary Twin Screw Pump Exploded diagram

When the screws rotate and pass the suction port the volume between them increases and create a vacuum which causes the liquid to enter the suction port and the pump casing. During the rotation of the screws, a fixed amount of fluid is conveyed through the pump. As the screws approach the discharge port, the volume between them decreases, creating a pressure build-up, causing the fluid to flow out of the discharge port.

How can we help?

Contact us

We pride ourselves on our service and response times, going above and beyond for clients to ensure we provide a long-lasting pump solution. Our pump specialists can help answer any queries and assist with pump projects to help your operation run as smoothly as possible. Get in touch with our sales team today.

How can we help?

We pride ourselves on our service and response times, going above and beyond for clients to ensure we provide a long-lasting pump solution. Our pump specialists can help answer any queries and assist with pump projects to help your operation run as smoothly as possible. Get in touch with our sales team today.

contact us

01928 333 400
[email protected]
[email protected]

Enquire Today

Our experts are just a call away: 01928 333 400
Alternatively, fill out the form below and we will be in touch within 24 hours.

Our experts are just a call away: 01928 333 400
Alternatively, fill out the form below and we will be in touch within 24 hours.

Our experts are just a call away:
01928 333 400
Alternatively, fill out the form below and we will be in touch within 24 hours.



    Pump Guides

    contact info stylised border

    Opening Hours:

    Mon - Thurs 08:30 - 17:00
    Friday 08:30 - 16:30

    Location:

    TS Pumps, 10 Cormorant Drive, Runcorn, Cheshire, WA7 4UD

    contact info stylised border