Based on the market-leading Alfa Laval LKH pump, Alfa Laval LKH Prime is an efficient, versatile and hygienic self-priming pump using a combination of air-screw technology and advanced design to meet the most stringent requirements in the food, dairy, beverage, home and personal care industries. Primarily used for Cleaning-in-Place duties containing entrained air, it can also pump product, reducing capital investment. Now with an additional model size providing extended performance envelope.
Energy efficient
Using the combination of advanced air-screw technology, optimized impeller and casing geometry, Alfa Laval LKH Prime exceeds industry expectations for quiet, efficient operation, reduced energy consumption and CO2 footprint. Alfa Laval LKH Prime is engineered to meet the most stringent standards and hygienic requirements.
Premium pump platform
A further addition to the market leading Alfa Laval LKH pump platform, Alfa Laval LKH Prime is characterized by superior performance, high quality and reliability for improved operational productivity.
Versatile
Designed primarily for Cleaning-in-Place duties containing entrained air, Alfa Laval LKH Prime can also pump product, potentially reducing capital investment when designing process systems – whatever the industry.
Meets global standards
Quiet in operation, Alfa Laval LKH Prime is engineered to meet the most stringent standards and hygienic requirements.
Easy to maintain
The pump is easy and cost effective to service and maintain. By sharing common parts with other Alfa Laval LKH range pumps, Alfa Laval LKH Prime offers low cost of ownership and increased uptime, backed up by the security that comes from Alfa Laval’s global service network.
A trusted supplier
Alfa Laval is a leading global provider of equipment with a history of excellence dating back to 1883, and one of the world’s largest hygienic pump suppliers. The Alfa Laval LKH Prime adds to a long list of high performance equipment that minimizes energy consumption.
Construction
Alfa Laval LKH Prime is a self-priming pump based on air-screw technology. It offers excellent operational efficiency, reducing energy consumption. The pump achieves capacities of up to 110 m3/hr and pressures of up to 115 m head.The pump shares many common components with the Alfa Laval LKH pump range including the impeller, which can be trimmed to optimize pump performance according to its application. Dedicated components include the airscrew, casing, re-circulation pipe and cover.
Operating principle
On applications where the pumped media contains a mixture of air and liquid in the suction line, air-screw rotation causes the formation of a continuous liquid ring within the canister. Due to the eccentric position of the canister relative to the air-screw, an air chamber forms between the liquid ring and the air-screw, as shown, which separates into air pockets between the air-screw vanes. The continuous rotation of the air-screw forces air pockets through the canister into the suction stage of the impeller which are then pumped out via the discharge. Liquid is returned from the discharge via the re-circulation pipe into the canister to ensure the liquid ring is maintained at all times. When there is no air present, the canister and re-circulation loop have no function and are fully filled with liquid. The liquid passes through the canister into the suction stage of the impeller, allowing the pump to act as a traditional centrifugal pump.
Pump configuration options
- Impeller with reduced diameter
- Motor with increased safety/flame proof motor
- Double mechanical shaft seal
- Product wetted surface finish Ra ≤ 0.8 µm
- Product wetted elastomers in EPDM, nitrile (NBR) or fluorinated rubber (FPM)
- Silicon Carbide rotating seal ring
- ½” tri-clamp drain connections (two connections)
Source: AlfaLaval.com