The diverse line of reliable electric, pneumatic and solar chemical injection pumps from Graco builds upon more than 90 years of experience in the development of efficient pumping technologies that serve millions of customers in dozens of industries worldwide. The company’s unwavering commitment to technical excellence, world-class manufacturing, and unparalleled customer service established the brand as a dominant global leader in fluid handling solutions.


Python® and Python® XL Series Pneumatic Pumps

Rely on Python series pneumatic pumps by Graco for precision chemical delivery at an attractive price point. Pipelines, well-sites and offshore platforms utilize this high performance line with extreme duty plungers, seals and timing valves for reliable operation year after year.

Design Features

  • Python flow rates from 0-70 GPD
  • Python XL flow rates from 0-800 GPD
  • Pressures up to 12,000 PSI
  • Ceramic coated or patented Chromex coated plungers
  • 316 SS wet end construction
  • Proprietary poppet style check valve prevents sticking
  • HNBR, FKM, ETP, TFEP AND FFKM packing and check valve seals
  • Adjust flow rate with air regulator valve


  • Easily accessible packing - changes in 10 minutes or less
  • Adjustable packing lasts up to 25 times longer than non-adjustable seals
  • Graco air motors require ½ of the air/gas consumption of standard motors
  • Pump cycle rate constant regardless of system back pressure
  • Air bleed valve conveniently located

Common Applications

  • Scavengers (H2S, O2, CO2)
  • Hydrate inhibitors (MeOH, MEG, LDHI)
  • Corrosion, scale and paraffin inhibitors
  • Clarifiers, biocides, bleaches and acids

T-Series High Pressure Pneumatic Pumps

The T-Series pneumatically operated liquid pumps provide an extremely safe, reliable and durable hydraulic power source for applications up to 68,000 psi. The pumps feature a robust motor and seal design that delivers a long service life with no requirement for a lubricated air source. Easy to install and service, the T-Series solves a range of issues unaddressed by the competition.

Design Features

  • Flows up to 47 GPH
  • Pressures up to 68,000 PSI
  • Patented Merkur Air Motor
  • Patented Chromex coated plunger
  • Customizable connections including HiP coned and threaded
  • Severe duty plunger seal
  • Optional Datatrak electronic monitoring system
  • Optional automated pump controller system
  • Optional custom or standard pump packages
  • ATEX and CE approvals


  • Designed for intermittent or continuous duty
  • Low air consumption with increased efficiency
  • Heavy duty muffler for low sound levels
  • Option to automate pressure tests and reporting
  • Easy to service
  • Bubble tight check valves for high pressure service

Common Applications

  • Hydraulic power units
  • High pressure chemical injection
  • Liquefied gas transfer
  • Pressure testing
  • Valve actuation
  • Bolt tensioning

Wolverine Electric Plunger Pumps

Whether your application is offshore, onshore or at a well-site, the Wolverine line by Graco is designed to accurately inject chemicals that prevent corrosion and enhance oil recovery.

Design Features

  • Flow rates from 0 to 430 GPD
  • Pressures up to 10,000 PSI
  • Three defined stroke adjustment positions between ½ “ to 1”
  • Easily converts from simplex to double acting
  • 316 SS wetted parts
  • Choice of HNBR, FKN, FKM, ETP AND FFKM plunger packing and valve seals
  • Class 1 Div 1 rated versions available
  • Seals designed to last 2 years or more
  • Patented Chromex coated plunger or ceramic
  • Variable speed control from 10-65 RPM via external knob on motor junction box


  • Easily integrated with solar powered systems
  • Precision flow adjustment with Graco Harrier controllers
  • Low friction drive train optimizes electrical efficiency
  • Resistant to water and dust
  • Quickly change seals, packing and heads in minutes in the field

Common Applications

  • Additive injection
  • Hydrate inhibitors
  • Scavengers - H2S, O2, CO2
  • Corrosion, scale and paraffin inhibitors

Mongoose™ Electric Diaphragm Chemical Metering Pumps

These versatile low pressure chemical metering pumps perform a wide range of dosing duties to include water treatment, boiler feed, cooling towers, plating and much more.

Design Features

  • Flow rates from 0 to 45 GPD
  • Pressures up to 250 PSI
  • Input voltage: 12 VDC, 120 or 240 VAC
  • Fluid end: 316 SS or PVDF
  • Diaphragm material: PTFE or PEEK
  • Manual stroke adjustment
  • Splash cover over controls
  • Nema 4x style enclosure standard
  • UL and CSA rated
  • Prime/air bleed port easily accessible
  • Proprietary poppet style Graco check valves for SS Head
  • Overload protection with easily replaceable fuse


  • No need to remove fluid section to prime pump
  • Poppet style valves prevent sticking
  • Self- resetting thermal overload prevents over heating
  • Integral controls for stroke adjustment and speed

Common Applications

  • Antifoams or defoamers
  • Ammonia
  • Biocides
  • Disinfectants
  • Chlorine
  • Phosphates
  • Polymers
  • Sulfer dioxide

Harrier® Controllers and Control Boxes

Optimize your chemical usage by regulating and monitoring dosing rates with the Harrier line of controllers for use with solar, AC and DC operated chemical injection pumps by Graco.


The Harrier+ controls the injection rate in three ways – via timing, cycle count or flow using patent pending adaptive rate controls that provide accuracy of up to +/- 1%.

  • Remote connectivity via cellular or SCADA connection
  • Adjust flow rate, zero the totalizer and change alarm limits remotely
  • Automatically adjusts to changes in operating conditions such as battery life and/or well pressure
  • Receive maintenance notifications for user programmable alarms
  • Available as a standalone controller or in the solar power box and control panel kits
  • Easily generate chemical usage reports
  • Prime mode for pump priming
  • Battery voltage display
  • UL and CSA Class 1 Div 2 rated
  • Pump or wall mounted control box options
  • Available in DC, single phase AC or three phase AC

Harrier AC

The Harrier AC controls the injection rate two ways – via timer and/or cycle for use with AC operated pumps.

  • Pump or wall-mount option
  • Power source - 100-240 VAC – 50/60 Hz
  • UL 508 and CSA22.2 #14 rated
  • NEMA 4x enclosure available
  • Prime mode for pump priming
  • Simple set-up and operation

Harrier EZ

The Harrier EZ controls the injection rate two ways – via timer and/or cycle for use with DC operated pumps.

  • On time / off time control for solar operated pumps
  • Battery voltage display
  • On / off power switch
  • Built in low voltage disconnect
  • Prime mode for pump priming
  • Temperature display and switch for methanol injection
  • UL 508 and CSA22.2 #14 rated
  • Simple set-up and operation

Modular Control Boxes

Choose from a variety of control box configurations to meet your application requirements.

Single battery control box

  • Steel or plastic versions
  • Use with Harrier EZ controller
  • Lockable
  • Standard with G-Chem solar system

Dual battery control box

  • Designed for pole mount on the solar panel
  • Powder coated aluminum construction
  • Removable sub-plate for convenient battery access and controller mounting
  • Lockable side lid

NEMA 4 rated control box

  • AC powered versions
  • Use with Harrier+ controller
  • Painted steel construction
  • Lockable
  • Lockout / tag-out disconnect switch
  • Configured for pole or wall mounting

NEMA 4x rated control box

  • DC powered versions
  • Single and dual battery options
  • UV resistant polycarbonate construction
  • Lockable hinged door

Four battery plastic control box

  • DC power
  • Lockable hinged lid
  • Removable sub-plate for convenient battery access
  • Sub-plates configured for all controller options