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Featured Image for P221A-5121

A German-made triplex plunger positive displacement pump with reciprocating plungers for direct or belt drive applications.

Features:
Anodized aluminum crankcase with sight glass and vented dipstick; forged, through-hardened, ground and polished crankshaft; bronze connecting rods; hardened stainless steel plunger bases; solid ceramic plungers; nitrile seals (with fabric reinforcing); stainless steel valves; and 316 stainless steel manifold.

Options:
Gearbox and bell housings (to connect to gasoline, diesel, electric or hydraulic drive), couplers (aluminum or Delrin).

WARNING: This product might contain a chemical known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov

Specification US Metric
Flow2.3 GPM8.9 L/min
Maximum Discharge Pressure2000 PSI140 bar
Crankshaft Speed1750 RPM
Power3.3 HP2.5 KW
Flow (High Speed)4.6 GPM17.6 L/min
Maximum Discharge Pressure (High Speed)2000 PSI140 bar
Power Consumption (High Speed)6.5 HP4.8 KW
Max Temperature160 °F70 °C
Inlet Port Size(2) 1/2" BSP
Discharge Port Size(2) 3/8" BSP
Plunger Diameter0.71 in.18 mm
Stroke0.28 in.7 mm
Maximum Inlet Pressure90 PSI6.2 bar
Crankshaft Diameter24 mm
Crankshaft RotationTop of Pulley Towards Manifold
Key Width0.31 in.8 mm
Crankshaft MountingEither Side
Crankcase Oil Capacity8.1 fl. oz. 0.24 L
Weight13.25 lbs.6 kg
Manifold Material 316 Stainless Steel
Crankcase Material Aluminum
Plunger Material Solid Ceramic Oxide
Valve Material 316TI Stainless Steel
Seal Material Nitrile with Fabric Reinforcing
The repair kits listed to the right are available for this pump. If you need further information about these repair kits, or have questions about other specific parts for your pump, please contact you local Giant distributor or contact Giant customer service.
ITEM# PART# DESCRIPTION Qty.
Plunger Packing Kit – Part #09602-0021
21 08443-0001 O-Ring 3
23 08087-0020 Grooved Seal, Teflon 6
23B 06163 Drip Shield 3
24 07904 Pressure Ring 3
Valve Assembly Kit – Part #09139-0011
26A 07946-0100 Valve Assembly 6
31 07853-0001 O-Ring 6
33 07913-0001 O-Ring 6
Oil Seal Kit – Part #09144
19 08356 Oil Seal 3

Horsepower Specifications

RPM GPM 1000 PSI 1500 PSI 2000 PSI
1450 2.0 1.4 2.1 2.8
1750 2.3 1.7 2.5 3.3
3000 4.1 2.8 4.2 5.7
3200 4.3 3.0 4.4 5.9
3450 4.7 3.2 4.9 6.5

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Specification Images

  • Specification Image (Side) Open
  • Specification Image (Front) Open

Additional Drawings

  • P221A-5121 Exploded View
  • P221A-5121 Parts List
  • P221A-5121 Torque Specifications

Literature

Documents open in new window/tab.

  • Giant Industries Limited Warranty
  • P221A-5121 Installation Instructions
  • P221A-5121 Repair Instructions
  • Troubleshooting Guide

Sample Pump

Our Company

For 50 years, Giant Pumps has offered the most dependable positive displacement high-pressure triplex pumps available. Designed and built to the highest quality standards, customers count on Giant Pumps products to keep their equipment running. Every design detail of Giant Pumps products is optimized for long-life and reliable performance, making Giant Pumps the most trusted name in high-pressure pumps and systems.

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