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FPX
Hygienic Centrifugal Pump

Standard Duty

Single Seal Only

The Industry Standard Sanitary Centrifugal Pump

What Is the FPX Pump?

The Fristam FPX Hygienic Centrifugal Pump is the industry standard for reliable, general-purpose liquid transfer in hygienic processing environments. Built with the same proven pump head as the Fristam FP Series, but without a pedestal mount, the FPX delivers cost-effective performance for everyday applications. Trusted across the food, beverage, and dairy industries, the FPX is valued for its durability, smooth operation, and long service life.

Where Is It Used? (Key Applications)

The FPX is widely chosen for common hygienic pumping needs, including:

  • Product Transfer – dependable movement of liquids between process steps
  • CIP Supply – delivering cleaning solutions through clean-in-place systems
  • Feeding Equipment – supplying fillers, separators, homogenizers, and heat exchangers
  • General Processing – versatile enough for most sanitary production lines

Whether handling raw ingredients, finished beverages, or CIP media, the FPX provides a balance of strength, efficiency, and gentle handling.

How Does It Work? (Theory of Operation)

At the heart of the FPX is centrifugal pumping technology. Product enters through the central eye of the impeller, where it is accelerated outward by centrifugal force. The optimized impeller design directs flow against the curved wall of the pump casing and toward the discharge port. Tight internal clearances (as little as 0.5 mm) minimize recirculation and slipping, resulting in efficient transfer and smooth, quiet operation.

The FPX is equipped with Fristam’s internal mechanical seal, which is cooled and lubricated by the product itself. This innovation extends seal life and reduces maintenance needs, even under challenging conditions.

Key Features and Benefits

  • Heavy-Duty Construction: 316L stainless steel castings and forgings withstand hydraulic shock and cavitation, protecting the pump from premature wear.
  • Optimized Impeller: Special vane angles increase efficiency and reduce NPSH requirements.
  • Gentle Product Handling: Close internal clearances promote efficiency while preserving product quality.
  • Extended Seal Life: Internal seal design ensures reliable lubrication and cooling, minimizing downtime.
  • Quiet, Smooth Operation: Robust engineering reduces vibration and noise.
  • Easy Installation: Self-aligning shaft with concentric collar simplifies setup and protects seals.

Available Options

Fristam’s FPX pump can be configured to meet specific application requirements:

  • Material Options: Standard 316L stainless steel, with available upgrades to low-ferrite stainless steel, Hastelloy®, or AL-6XN®.
  • Seal Materials: Silicon carbide, chrome oxide-coated stainless steel, or carbon.
  • Pharmaceutical Enhancements: USP Class VI elastomers, perfluoroelastomers, electropolishing, and enhanced surface finishes to 15 Ra.
  • Drainability & Mounting: Casing drain and flexible mounting options support complete cleanability.
  • Sterilization Ready: Compatible with steam-in-place (SIP) systems—no external cooling required.
  • Comprehensive Documentation Package: Including certified drawings, material certification, performance testing and much more.

Where to Buy

FPX hygienic centrifugal pumps are available through Fristam’s authorized distributor network. Our channel partners are trained to support proper sizing, selection, and integration into your process.

Why Choose the FPX Pump?

Customers select the Fristam FPX Hygienic Centrifugal Pump because it combines proven reliability, long service life, and hygienic performance in a cost-effective package. Unlike lightweight alternatives, the FPX is engineered with substantial stainless-steel construction to handle demanding conditions without sacrificing efficiency or product quality.

By choosing the FPX, you gain:

  • Confidence in an industry-standard solution trusted for decades
  • Lower total cost of ownership through extended seal life and reduced downtime
  • Assurance that your process meets stringent hygienic standards
  • Backing from Fristam’s global service and support network

The FPX is not just a pump—it’s a dependable cornerstone of hygienic processing systems worldwide.

Long Seal Life

Fristam’s unique internal seal uses the cooling and lubrication of the product to provide longer seal life. Even under extreme conditions, Fristam’s seal life is often measured in years.

Self-Aligning Shaft

A self-aligning shaft design allows for easy installation and gapping on Fristam centrifugal pumps. The concentric collar on the shaft prevents run-out, protecting the seal from damage.

Pharmaceutical Options

All standard Fristam centrifugal pump stainless steel components are 316L. Special castings are available in low-ferrite stainless steel or high-performance alloys such as Hastelloy® and AL-6XN®. USP Class VI elastomers are standard for pharmaceutical applications, with perfluoroelastomers available. Seal material options include silicon carbide, chrome oxide-coated stainless steel, and carbon. Electropolishing and enhanced internal surface finishes to 15 Ra are available on most products. Casing drain and mounting options provide complete drainability critical for long-term system cleanliness. Pumps can be easily configured for steam-in-place sterilization, with no external cooling devices required.

FPX
Hygienic Centrifugal Pump Model Specifications

Model Max Flow Rate (GPM) Max Speed (RPM) Max Differential Head FT (PSI) Connection (in) Max Viscosity
70126.9175015.4 (6.7)1.5 x 1.5500 cps
71181.6175027.5 (11.9)2 x 1.5500 cps
72167.2175035.3 (15.3)2 x 1.5500 cps
3251161175035.4 (15.3)2.5 x 2500 cps
73181.6175044.9 (19.4)2 x 1.5500 cps
3531216175052.1 (22.6)2.5 x 2500 cps
741105175065.2 (28.2)2.5 x 2500 cps
1741154175077.8 (33.7)2.5 x 2500 cps
3541426175068.9 (29.8)3 x 2.5500 cps
3451240175090.5 (39.2)3 x 2500 cps
35514321750105.0 (45.5)3 x 2.5500 cps
1051763175099.9 (43.3)4 x 4500 cps
11518631750131.0 (56.7)4 x 4500 cps
11619001750179.0 (77.5)4 x 4500 cps
70248360060.0 (26.0)1.5 x 1.5500 cps
712963600106.0 (45.9)2 x 1.5500 cps
7221203600140.0 (60.6)2 x 1.5500 cps
35222883600145.0 (62.8)2.5 x 2500 cps
35323843600212.0 (91.8)2.5 x 2500 cps
7321633600171.0 (74.0)2.5 x 2500 cps
7421583600256.0 (110.8)2.5 x 2500 cps
17322883600201.0 (87.0)2.5 x 2500 cps
17422903600302.0 (130.8)2.5 x 2500 cps
35428063600275.0 (119.1)3 x 2.5500 cps
34524323600354.0 (153.3)3 x 2500 cps
35526003600445.0 (192.7)3 x 2.5500 cps
}

Media

FP/FPX Maintenance Video

Files & Documentation

““...reliable, easy maintenance, very good centrifugal pump...””

—Maintenance Planner, Pharmaceutical Facility

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