HTS Sanitary Twin Screw Pump

HTS Hygienic Twin Screw Pump  

The HTS sanitary twin screw pump is a versatile unit which eliminates the need for a separate CIP pump due to its ability to operate at high and low speeds – low for process duty, and high for effective CIP cleaning and sanitation. This ensures effective sanitation without compromising performance. 

An innovative range of pumps, the HTS series is designed to elevate standards and efficiencies where sanitation is required through elimination of dead zones. The pump head is designed to be completely drainable as standard as opposed to other pump designs where the feature is on request. 

Typically, positive displacement pumps operate at low speed due to the viscosity of liquids, and particles being transferred.  This means a reduced speed is required for effective pumping, decrease of wear and to prevent shear of sensitive liquids. 

They usually rely on a separate CIP port to bypass slowly rotating parts for effective cleaning. CIP cleaning can be aggressive to internal rubber parts of pumps which although are resistant to the caustic and acidic nature of high temperature CIP water, they do breakdown over time causing rubber to powderise. 

Due to the HTS Twin Screw pump being of full metal design, it keeps internal rubber parts to minimum.  This also eliminates the likelihood of rubber parts contaminating liquids overtime, ensuring higher quality end product. 

This unit is suited for a variety of applications for liquids up to 1,000,000 CP, additionally, due to its gentle pulsation and axial conveying of liquid, material integrity is maintained. The high suction capabilities mean that a variety of liquids can be processed.   

Customisation of flow and pressure generating is obtained from a choice of screw pitches which allows for different flow rates, pressure and solid handling especially when combined with a Variable Frequency drive for multispeed operation.  It can run dry when fitted with flush seals due to the separation of rotors and pump casing.    

Manufactured from Stainless Steel 316 the HTS is resistant to corrosion and oxidisation.  The rotor and sealing shaft can be supplied with Duplex or Super duplex stainless steel on request, with the screws hardened on request for abrasive applications.  Gaskets are available H-NBR, EPDM, FPM or FFPM.  

Maintenance is easy and efficient thanks to the split casing design for ease of disassembly and the convenient location of the inspection port being directly above timing gear for set up. A between bearing design with 4 sets of bearings in an oil bath ensures extended performance, improved efficiency as well as quiet operation.   

The HTS can be used for a variety of sanitary industries including; milk and dairy, bakery, beverages, cosmetics, pharmaceutical, brewing and the tomato industry.   

Product Summary 

• Process duty & CIP with one pump – no separate CIP pump required with the HTS being capable of multi speed operation with slow speed for product transfer and high rpm for CIP due to dynamically balanced rotors 

• Pulsation free pumping & reversible 

• Compact design 

• Self priming up to 8.5M 

• Dry running capability due to non contact parts 

• Casing, rotors and shafts available in Stainless Steel 316 as standard. Duplex or Super duplex stainless steel available on request with heat treatment depending on application. 

• Baseplate variants include standard, with 3-A approved adjustable feet, or hygienic base frame. 

• Accessories available including; heating jacket, double mechanical seal with quench for abrasive liquids, and trolley mounting  

• Gaskets available in H-NBR, EPDM, FPM or FFPM