What is the difference between the S200 Series and the standard Waukesha 200 Series pump?

The S200 Series was re-designed specifically for pharmaceutical processors. It is an enhanced, sanitary version of the standard 200 Series pump. It features improved cleanability, polished surfaces, hygienic design elements, and upgraded components suited for food, beverage, and dairy applications where higher sanitary standards are required.

When should I choose an S200 Series pump over the standard 200 Series?

Choose the S200 when your process requires higher sanitary compliance, improved CIP performance, and higher hygienic reliability. All Product contact components are machined from wrought less than 5% ferrite level, 316L SS and feature a 20 Ra product contact finish.

Waukesha S200 Series Pump

Product Overview

Designed for use in the Bio-Pharmaceutical industry, these pumps are manufactured to ASME BPE specification criteria. All product contact components are precision-machined from wrought 316L stainless steel with less than 5% ferrite content and a 20 Ra surface finish. Material heat numbers are available for all contact components, ensuring traceability and compliance.

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Waukesha S200 Series Pump

Key Features

Cleanable-in-Place (CIP) design for hygienic processing
High efficiency, low NPSHR design suitable for a wide range of applications
Single mechanical seal size across all S200 Series models to reduce inventory and cost (commercial seals available)
Integral impeller/shaft design for fewer parts, improved concentricity, and easier maintenance
Close-coupled pumps use NEMA JM Frame motors with larger shafts and bearings than C Frame motors
Discharge port orientations are available in horizontal, vertical, and 45° angles
Impellers, casing, and backplate machined from wrought 316L stainless steel
Stainless steel motor adapters for enhanced durability
Reduced validation time with comprehensive documentation package
FDA-approved fluoroelastomers and USP Class VI elastomers for product safety
Certified to 3-A and EHEDG hygienic standards

Options

15 or 20 Ra., electropolish and passivation product contact surface finishes
Double mechanical seals
Casing drain
SS motors
USP Class VI elastomers
Stainless steel motors
SS Leg Kits
Ra Mapping
Certified and witness performance testing
Pedestal-mounted pumps
Stainless steel bases and coupling guards

Theory of Operation:

Centrifugal Pumps

A centrifugal pump operates by converting mechanical energy from a rotating impeller into kinetic energy within the pumped fluid. In sanitary centrifugal pumps such as those from Waukesha and APV, fluid enters the pump through the inlet eye at the center of the impeller. As the impeller rotates at high speed, centrifugal force accelerates the fluid radially outward along the impeller vanes, increasing its velocity.

This high-velocity fluid then enters the volute casing, where the expanding geometry converts velocity into pressure, producing a smooth, continuous flow at the discharge. The precision-machined volute, enlarged ports, and hygienic impeller designs used in Waukesha and APV pumps help minimize turbulence, reduce shear, and improve efficiency, making them ideal for sanitary applications requiring gentle product handling, cleanability, and consistent flow performance.

Key Applications

Pharmaceutical Processing
USP Purified Water
USP Water for Injection
Buffer Distribution & Transfer
CIP Solutions

Technical Specifications

MODEL	INLET	OUTLET	MAXIMUM IMPELLER SIZE

S2045	1½” (38mm) 2″ (51mm)	1½” (38mm)	4½” (114 mm)
S2065	2½” (64mm)	2″ (51mm)	6½” (165 mm)
S2065LV	1½” (38mm) thru 2½” (64mm)	1½” (38mm)	6½” (165 mm)
S2065HV	3″ (76mm)	2″ (51mm)	6½” (165 mm)
S2075	3″ (76mm)	1½” (38mm)	811/16″ (218 mm)
S2085	3″ (76mm) 4″ (102mm)	2½” (64mm)	811/16″ (218 mm)
S2085LV	2″ (51mm)	1½” (38mm)	8½” (216 mm)