Hammonds Technical Services

Additive Injector - 600 Series
The Model 600 - The Industry Standard For Truck Mounted Additive Injection

The 600 Series system offers single or multiple additive injection at flow rates typically found in aviation refuelers, hydrant systems, heating oil delivery trucks, and water treatment vehicles. The unique positive displacement driver responds precisely to changes in product volume even at very low flow rates. Like all Hammonds injectors, the 600 dispenses precise quantities of additive at an almost continuous rate, eliminating the "slugging" effect typically found in meter pulsed injectors. The additive is injected just ahead of the driver, providing complete, consistent additive mixture blending.

Completely Self-Contained Units

The efficient Hammonds fluid powered motor "borrows" just enough energy from the flowing product line to do the job. No need for electricity, air or pressurized additive lines.

Totally Unassisted Injection

Complete, passive operation means they automatically operate when the rest of the system operates. No need to remember to turn the injector on or off. It if is connected to a system, it "remembers" when to run, how much to run and when to stop. The operator has nothing to remember, nothing to adjust, nothing to forget.

Meters And Pulsars No Longer Required

Because our fluid motor acts as bot a source of control and power, additional meters and pulsars are not required.

Installation Is Simple And Economical

With a Hammonds system, there is only one simple mechanical pipe connection. No wiring in hazardous conditions, no additional equipment on other parts of the system to install, no concrete work, or costly site engineering to lay out pipes, conduit, pumps and skids. In most cases, a system can be ordered that will "drop in" to your existing piping, requiring very little on-site preparation.

Guaranteed Precision Blending

Unlike some systems that inject large slugs into the product at metered intervals, the Hammonds injector continuously dispenses a precise measured rate of additive that matches the existing flow rate. There are no gaps in the injection process. Since the injection point usually upstream of the fluid motor, thorough blending of product and additive is achieved.


Number of Additives
One (1) standard
Two (2) optional

Injection Ratios
One (1) additive
0-1300 PPM with standard 1S Head
0-3600 PPM with optional 2L Heads
Two (2) additives
0-2000 PPM each additive with 1L Heads

Minimum Injection Ratio: 1 PPM
Normal Operating Range: 0-300 GPM
Minimum Product Flow Rate:10 GPM
Maximum Product Temperature: 0-250°F
Maximum Product Line Pressure:100 PSI (PSI varies with injection ratio - consult factory for requirements greater than those specified)
Product Viscosities: to 10,000 SSU
Additive Supply Requirements: Flooded suction
Products Handled: Ideal for low viscosity materials with some lubricating qualities
Fluid Connections:
Product: 3" Victaulic Connections
Additive: ¾" FMNPT standard

Materials of Construction:
Fluid motor: Anodized Aluminum
Additive injector: All wetted parts 300 series Stainless Steel
Elastomers: Buna-N, PTFE, Viton

On/Off Operation

Additives can be turned on or off at pump or with an optional remote control panel with sight flow indicators.

Additive Supply

Flooded suction is preferred, moderate suction lift is acceptable.

Ratio Stability at Low Flows

Even if startup and shutdown flow rates are below stated minimums, unit can be calibrated to maintain overall ratios. The system will maintain ratio for total product throughput.


No restrictions on mounting adjacent to turns, valves or other pipe fittings.

Back Pressure

Pressure and flow rates are not significantly affected.
Differential pressure at 75 GPM = 3 PSI

Mounting Attitude

Units can be installed in vertical or horizontal lines. The output shaft on the fluid driver should be arranged in a horizontal position.

Standard Equipment


  • 600 series fluid motor
  • All anodized cast aluminum housing
  • 3" victaulic connections
  • Hammonds 1S single, small fluid end injector pump
  • All Stainless Steel wetted parts
  • 3-way On/Off/Calibrate valve
  • Adjustable "while running" calibration
  • PTFE elastomers
  • Stainless Steel check valves
  • Stainless Steel injector manifold
  • Calibration port
  • Built-in injection point with check valve
  • Instruction manual with calibration charts
  • Graduated calibration bottle
  • White acrylic enamel paint
  • Factory loop tested to customers specifications

Optional Equipment

  • Custom product line fittings
  • -3" flanges
  • -3", 4" 150# RF ANSI flanges
  • Suction Strainer
  • Suction sight flow indicator
  • Suction on/off ball valve, Stainless Steel
  • Remote control panel
  • Remote electronic controls
  • All Stainless Steel construction
  • PTFE coated internals
  • Epoxy coated internals
  • Custom additive tanks
  • Weatherproof enclosures
  • Multiple additive capability
  Hammonds Technical Services
  671 West Seventeenth Street Costa Mesa, CA 92708 Web
Site: http://www.hammondscos.com/