ZP1 Series Positive Displacement Pumps: Proven, Trusted Design

The ZP1 Pump is the industry workhorse. With a proven design and the added features that Ampco Pumps offers, the ZP1 is a simple choice.

Popular worldwide, the ZP1 has a large installed base in both sanitary and non-sanitary applications.

With seal modifications like the PTFE double lip seal the ZP1 is dedicated to the toughest applications such as chocolate and paint processing. The ZP1 is well suited for sanitary industrial and chemical applications and is commonly used in oil, gas and fracking industries. Offering impressive versatility durability and chemical wear resistance the ZP1 is in conformance of 3A Sanitary Standards and can be delivered in less than three weeks.

The ZP1 is easily maintained and simple to disassemble for COP cleaning when required.

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Have an emergency, need a pump now? No Problem!

Ask an inside sales engineer for additional information on our In-Stock Pump Program.  Ampco offers a limited inventory of in stock, ready to ship, ZP1 and ZP3 Series pumps in sizes ranging from 030 to 320. Expediting fees do apply, seals are standard configurations.

Ampco has the best inventory and best deliveries in the industry, contact us today.
414.643.1852 or [email protected]

ZP1 Series
Circumferential Piston Pump Features

  • 304 Stainless Steel Gearcase
  • Alloy 88 Non-Galling Rotors
  • Stainless Steel Bearing Retainers
  • 17-4ph Shafts – more than 3 times the yield strength of 316
  • Helical Gears
  • 4-Way Mounting
  • Multiple Threaded Grease Zerks
  • Gasketed Stainless Steel Clean-Out Plugs
  • Stainless Steel Splash Plate

All ZP1 Series features and benefits are standard to the entire ZP lineup.

ZP1 Series Performance Overview

Models:  9
Max Discharge Pressure:  225 PSI / 15.5 BAR 
Max Flow Rate:  452 GPM / 103 m3/hr
Max Viscosity:  1,000,000 cP
Seal Specifications:  5 Seal Options

ZP Series Brochure
ZP In Stock Flyer
ZP Pressure Bypass Flyer
Sanitary Line Brochure
ZP Frack Oil Gas Flyer
ZP Close Couple Flyer

Durable Reliable Design

The ZP1 offers several seal configurations and is easily converted in the field.

Ampco’s extensive parts inventory makes same day shipping a reality. 100% interchangeable with OEM counterparts, Ampco quality parts are manufactured in the USA, cost effective, and reliable. Ampco’s ZP1 is a simple choice.

ZP1 Series Circumferential Piston Pump Advantages

Unmatched List of Standard Features

  • 304 Stainless Steel Gearcase is Standard on All Models
  • Stainless Steel Bearing Retainers
  • 17-4ph Shafts – more than 3 times the yield strength of 316
  • Designed, Manufactured and Assembled in the U.S.A.
  • Standard Delivery is Only 2 Weeks
  • Ease of Maintenance and Parts Interchangeability
  • Available Options – Rectangular Inlets Pressure Relief Valves, Heating Jackets, and Optional Rotor Designs
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Need Parts? Contact Ampco today for pricing, availability and next day shipping of all your ZP1 replacement parts.
Email us or call 1.800.737.8671


The Ampco ZP1 is 100% dimensionally, hydraulically, part-for-part interchangeable with competing pumps.