Ampco AC216MD56C-S/VITON Pump End Only Kit 2 x 1-1/2 in.

Ampco Pumps AC216MD56C-S/VITON Pump End Only Kit, 2 in. x 1-1/2 in. Sanitary Centrifugal Pump End

The Ampco AC216MD56C-S/VITON is a complete pump end only assembly from Ampco's AC Series of sanitary centrifugal pumps, built around 2 in. inlet and 1-1/2 in. outlet tri-clamp connections. Because it ships without a motor, it is the practical choice when a plant already has a serviceable NEMA 56C C-face motor on the floor and simply needs the wetted end replaced, upgraded, or held as a spare. Everything that touches product is 316L stainless steel with a 32 Ra polished finish, and the unit conforms to 3A sanitary standards for centrifugal pumps handling milk and milk products.

The model code tells the story of the build. AC216 identifies the AC Series 216 frame with its 2 x 1-1/2 in. porting, M specifies tri-clamp fittings, D calls out the Type D single external balanced mechanical seal, 56C matches the pump end to a 56C motor adapter, and S designates the stainless steel seal seat paired with a carbon rotary face. The VITON suffix swaps the standard Buna elastomers for fluoroelastomer O-rings and gaskets, which is what makes this configuration worth specifying: Viton holds up to higher temperatures and to aggressive CIP chemistries, solvents, oils, and acids that shorten the life of nitrile seals.

That combination puts this pump end to work well beyond the dairy plant it was originally engineered for. Processors running flavor concentrates, essential oils, ethanol blends, personal care formulations, pharmaceutical intermediates, and chemical transfer duties all lean on Viton-equipped sanitary pumps for the same reason. The AC Series is dimensionally interchangeable with common C Series pumps from other manufacturers, so a facility standardizing its spare parts inventory can drop this pump end into an existing installation without re-plumbing or re-baseplating the system.

Key Features

• Pump end only assembly — motor is not included, mounts to a customer-supplied NEMA 56C C-face motor
• Viton (FKM) elastomer O-rings and gaskets for elevated temperature and aggressive chemical service
• Type D single external balanced mechanical seal with carbon rotary face and stainless steel stationary seat
• 316L stainless steel casing, backplate, impeller, and stub shaft for corrosion resistance
• Tri-clamp sanitary connections for tool-free disassembly and inspection
• 32 Ra (150 grit) product-contact surface finish supports clean-in-place routines
• 3A certified for centrifugal pumps used with milk and milk products
• Dimensionally interchangeable with standard C Series pump ends for straightforward retrofits
• Trimmable impeller allows the pump end to be matched precisely to a duty point
• Field-serviceable seal design keeps rebuild time and spare parts cost low

Applications

• Dairy processing — milk, cream, whey, and cultured product transfer
• Food and beverage production, including juices, syrups, and flavor concentrates
• Breweries, distilleries, and wineries handling wort, beer, spirits, and ethanol blends
• Pharmaceutical and nutraceutical fluid transfer
• Personal care and cosmetics manufacturing, including lotions, oils, and surfactants
• Chemical transfer duties requiring fluoroelastomer compatibility
• CIP and SIP supply and return loops
• Solvent, essential oil, and fuel-blend handling where Buna is not suitable
• General sanitary process transfer and recirculation in stainless piping systems

Specifications

• Manufacturer: Ampco Pumps Company
• Part Number: AC216MD56C-S/VITON
• Series: AC Series sanitary centrifugal
• Configuration: Pump end only (PEO), motor not included
• Port Size: 2 in. inlet x 1-1/2 in. outlet
• Connection Type: Tri-clamp (M)
• Motor Frame Adapter: NEMA 56C C-face
• Seal Type: Type D single external balanced mechanical seal
• Seal Faces: Carbon rotary against stainless steel stationary seat
• Elastomers: Viton (FKM)
• Wetted Materials: 316L stainless steel
• Adapter Material: 304 stainless steel
• Surface Finish: 32 Ra (150 grit) product contact
• Impeller Diameters Available: 4.0 in., 4.5 in., 5.0 in., 5.5 in. (trimmable)
• Maximum Capacity: Up to approximately 280 GPM at 3500 RPM
• Maximum Head: Up to approximately 180 ft at 3500 RPM
• Maximum Inlet Pressure: 60 PSI (4 BAR)
• Maximum Viscosity: 1,200 cP
• Sanitary Certification: 3A compliant

Frequently Asked Questions

Q: Does this kit include an electric motor?

A: No. The PEO designation means pump end only, so you receive the fluid end assembly and adapter but supply your own NEMA 56C C-face motor. This keeps cost down for plants that already have a healthy motor in service.

Q: Why choose the Viton version over the standard Buna configuration?

A: Viton fluoroelastomer tolerates higher temperatures and resists oils, solvents, acids, and strong CIP chemistries far better than nitrile. If your process fluid or cleaning cycle has been chewing through Buna O-rings, the Viton build is the direct upgrade.

Q: Can the impeller be trimmed to hit a specific duty point?

A: Yes. The AC216 accepts impellers from 4.0 in. through 5.5 in., and Ampco can trim to an intermediate diameter so the pump end matches your required flow and head without oversizing the motor.

Q: Will this pump end bolt onto a competing brand's C Series installation?

A: In most cases it will. Ampco built the AC Series to be dimensionally interchangeable with standard C Series pumps, so the mounting, porting, and motor adapter line up with existing baseplates and piping.

Q: Is this suitable for non-food chemical transfer?

A: It is. While the 3A certification points to dairy and food service, the 316L wetted path combined with Viton elastomers makes this pump end a common pick for chemical, solvent, cosmetic, and pharmaceutical transfer where a sanitary finish is still desirable.