Front Loading Seal LF Series
is a Maintenance Dept Favorite

Ampco’s LF is designed with a unique front loading seal for maintenance ease and improved clean-ability.

While seal designs in competitor pumps are known to leak due to product build-up when processing tacky or sticky products, the specially designed Ampco LF seal eliminates this problem area by removing the traditional O-ring groove and dead zone. The innovative design of the Ampco LF seal offers a semi-exposed O-ring allowing product to flow freely through previously restricted areas eliminating product build-up.

The LF seal design offers ease of assembly. Exclusive to the Ampco LF, the rotating seal stays retained in the driver during the assembly process too.

Balanced impellers, a self-aligning shaft design and tight manufacturing tolerances, minimize vibration and improve seal life, making the LF a preferred choice for difficult to handle products.

The LF Series is a highly efficient pump that gently handles product while providing a more sanitary seal design than competing pumps.

Industry leading delivery times, 304 stainless steel adaptors, seal design advantages, and a maintenance-friendly assembly process make Ampco’s LF Series a simple choice.

Cryogenic Low Temp Applications. CBD hemp oil or Cannabidiol is fast becoming a mainstream ingredient for beverages, health products, gels, and other consumables products. The extraction process of these valuable oils can require pumping ethanol at temperatures as low as -70F (-56C).  Ampco has designed a special seal for positive displacement and centrifugal pumps that are suitable for these extremely low temperatures.

The LF Series centrifugal pump series with its internal seal design is a smart choice for this application providing durability, efficiency and tremendous maintenance advantages, contact Ampco’s Technical Sales Team today to discuss your specific application requirements.

Ampco Pumps LF Series Cryo-pump Technology – Learn More

No need to remove piping for maintenance, the front loading seal can be changed simply by removing the front cover.

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LF Series
Centrifugal Pump Features

  • 316L Stainless Steel Heavy Wall Construction
  • Cast and Machined
  • 304 Stainless Steel Adapter
  • Balanced Impellers
  • 316L Stainless Steel Shaft

LF Series Performance Overview

Models:  13 
Max Inlet Pressure:  150 PSI / 10 BAR
Max Flow Rate:  1800 GPM / 409 mᵌ/hr
Max Viscosity:  1,200 cP
Seal Specifications:  3 Seal Options

L Series Brochure
L Series Cryo Pump Brochure
Sanitary Line Brochure


Proven Design & Upgraded Features

The LF Series gives end users the added benefit of a cleaner seal design with partially exposed O-rings making it easier to handle seal assembly. The result – reduced downtime resulting in greater profitability.

LF Series Centrifugal Pump Advantages

  • 304 Stainless Steel Adapter

  • Cleaner Seal Design

  • Rotating Seal Retained for Ease of Assembly

  • Dimensionally and Hydraulically Interchangeable with Competing Pumps

  • Convert to Double Seal Easily in the Field

  • One Week Delivery

  • Manufactured and Assembled in U.S.A.

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The LF Series is a “drop-in” replacement for competitive or OEM sanitary centrifugal pumps – and offered at a highly attractive price point.

Available Models

Model # Curves 1750 3500 Data Sheet
LF R01/R02 Curves 1750 3500 Data Sheet
LF R11/R12 Curves 1750 3500 Data Sheet
LF R21/R22 Curves 1750 3500 Data Sheet
LF R31 Curves 1750 - Data Sheet
LF R41/R42 Curves 1750 3500 Data Sheet
LF R51/R52 Curves 1750 3500 Data Sheet
LF R141/R142 Curves 1750 3500 Data Sheet
LF V521/V522 Curves 1750 3500 Data Sheet
LF V531/V532 Curves 1750 3500 Data Sheet
LF V541/V542 Curves 1750 3500 Data Sheet
LF V551/V552 Curves 1750 3500 Data Sheet
LF X051 Curves 1750 - Data Sheet
LF X161 Curves 1750 - Data Sheet
LF V401 Curves 1750 - Data Sheet
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