Liverani GR ADPE Explosion Proof Side Channel Pump

Chemical Transfer Pump & Distillery Pump

Key Specifications
Max Flow Rate 900lpm
Max Head 55M
Max Temperature 165°C
Max Viscosity 100 cP
Solids 0mm
Size 3/4” up to 3”
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The Liverani GR ADPE Series are long coupled, Explosion Proof (II 2G IIC c T4 X / II 2G IIB c T4 X) side channel pump. These liquid ring pumps are frequently used in many industries for the transfer and offloading of clean, low viscosity and flammable fluids such as light hydrocarbons including Aviation Fuel / Kerosene, Petrol & Diesel as well as alcohols, acids, solvents & edible fluids.

The GR ADPE side channel pumps are an incredibly robust and versatile pump, offering a varied flow and head range as well as motor voltage options and control options. They are supplied either on a baseplate or trolley for portable applications.

Features of the GR ADPE Series Liquid Ring Pump:

  • Explosion proof, long coupled liquid ring pump
  • Self priming up to 6m without the need of a non return valve
  • Reversible operation
  • Low risk of cavitation due to low NPSHr
  • Short period of dry running
  • Hygienic construction
  • Transfer of fluids with gases and vapour in suspension without a pulsing effect
  • Single bearing and sealing construction up to MASTER 2”, NAUTIC 70 & 80 units fitted with double bearing and sealing construction - reducing shaft deflection and wear & increased leakage protection
  • Supplied with BSP M Fittings as standard. Can be supplied with a variety of food grade connections and also custom welded flange configurations. See case study here.
  • Operating Speeds up to 2800 rpm
  • Trolleys fitted with Anti-Static Wheels
  • Stainless Steel Impellers available for Stainless Pump Heads. Fitted with Bronze as standard (except NAUTIC 80 in SS)
  • Single Phase motors available for up to MASTER 2” / SPECIAL 50

Thanks to the following features the Liverani GR APDE side channel pump is an option that can be applied to many application requirements.

  • ATEX approved - Explosion proof motor for the safe handling of flammable liquids and hydrocarbons
  • Hygienic construction - The Stainless Steel model is food grade making it safe for use with products for human consumption. Tri-clamp coupling available.
  • High entrained gas capabilities - Liquids with up to 50% gas content can be handled without any dry run damage e.g condensate
  • Low NPSH required - Can pump liquids close to boiling point without risk of cavitation such as LPG
  • High temperature handling - Liquids can be transferred at temperatures up to 165°C which is where other pumping technologies fail
  • Reversible operation – Allows cleaning solution to be ran through after use for hygienic pump applications, and tank to tank transfer applications.
  • Self-priming up to 6m – Enables the emptying of tanks and drums without a non-return valve or regular manual priming being required.
  • Various accessories available - Trolley for portability, bypass valve for nozzle dispensing, control panel, variable speed drive, level sensors and dry run protection

Like centrifugal pumps, side channel pumps have narrow tolerances that make them suited to only clean, low viscosity fluid free from solids. However, their uses do vary. Firstly, side channel pumps can handle high temperature fluids that are pumped close to boiling point and also can pump fluids that contain up to 50% gas content with little interruption to fluid flow. Their hygienic design and their reversible operation means that the Liverani GR APDE liquid ring pump is ideal for the below applications:

Marine Applications: Industrial Applications:
  • Fresh and sea water pump
  • Boiler feed
  • Condensate extraction
  • Aquaculture recirculation systems
  • Low viscosity fuel and lubrication transfer
  • Hot water transfer
  • Condensate extraction
  • LPG
  • Low viscosity fuel and lubrication transfer
  • Process water and chemical pumping
  • Corrosive acids and solvents
  • Juices, edbile oils and drinks manufacturing
  • Refrigerants and coolants

MATERIALS OF CONSTRUCTION:

DescriptionBronzeStainless Steel AISI 316Nitrile (NBR)PTFECeramic / Graphite / NBRCeramic / Graphite / VitonCeramic / Graphite / EPDM
Part List
Pump Body
Impeller
Shaft
Mechanical Seal
Flange Seal

** NOTE: Changes in Lip & Mechanical Seal Materials are at cost.

FAQs

Side channel pumps, or liquid ring pumps as they are otherwise known, are somewhat of a hybrid between a positive displacement pump and a centrifugal pump. Upon start up, a side channel pump begins to operate like a positive displacement pump as it self primes, but soon begins to act like a centrifugal pump once the side channels become filled with fluid.

The liquid is drawn in and enters the impeller blades and the side channel which is open at just one point in the casing, rather than the entire circumference. As the star shaped impeller rotates, the pumped fluid moves back and forth several times between the blades of the impeller and the side channel. This creates a strong transfer of energy and results in an increase in pressure up to 10 times greater than that of centrifugal pump rotating at the same speed.

They are usually designed for low flow, high pressure applications involving any low viscosity, clean fluids and chemicals including those at high temperatures with entrained gas or vapour content up to 50%.

Due to their narrow tolerances, side channel pumps are unable to hande solids. All liquids pumped must be clean and free of particles.

Yes! As the fluid collects in the outer area of the side channel and impeller blades, a liquid ring forms to facilite the self-priming process like a positive displacement pump, making it ideal for difficult suction conditions.

Unfortunately not. The high internal velocity/force that is applied upon the fluidlike a centrifugal pump can damage or alter the consistency of a delicate fluid.