📍 We’ll be exhibiting at AWA NSW Conference 2026  —  Visit us at Booth 07, August 17–19. ✕

Chemical Injection Assemblies

Google Search Our Web Site:

With a wealth of experience and expertise, H2O Rx can assist you with your chemical dosing applications.

H2O Rx stock and design a wide range of chemical injection assemblies and sample probe valves suited to most chemical dosing applications - from liquid through to gas applications - from water treatment to food processing.

These are available in a wide range of materials for chemical compatibility, pressure ratings and connections.

H2O Rx has been the Asia / Pacific distributor for the Saf-T-Flo range of injection and sample quills since 2007.

Various Chemical Injection Assemblies Plastic Retractable Metallic retractable Quick Release - fixed type

Retractable Chemical Injection Quills

Retractable Chemical Injection Quills allow the quill to be removed from service without depressurising and draining the process main. Use these where the system valving or process does not easily allow for shut down of the process main.

General purpose injection quills with a 1000 kPa rating.

Standard Service Units - General Brochure

PVC Construction - General Brochure

Model
Process Connection Size
Solution Tube Size
Check Valve
Saf-T-Seal Tip
EB-120
1/2"
1/4"
Integrated
No
EB-145
3/4"
3/8"
Integrated
Option
EB-162
3/4"
3/8"
Integrated
Option
EB-146
1"
1/2"
Integrated
Option
EB-164
1"
1/2"
Integrated
Option
EB-125
3/4"
3/8"
Quick Disconnect
Option
EB-163
3/4"
3/8"
Quick Disconnect
Option
EB-130
3/4"
3/8"
Option
EB-132
1"
1/2"
Option
EB-191
1-1/4"
3/4"
Optional
No
EB-159
1-1/2"
1"
Optional
No
EB-160
2"
1-1/2"
Optional
No

O&M Manual - Standard Service

O&M Manual - Standard Service c/w Check Valve

O&M Manual - Standard Service c/w Quick Disconnect

Where there are larger sizes, higher pressures, higher velocity and more turbulance, the heavy service range is better suited.

Heavy Service Units - General Brochure

Series
Process Connection Size
Solution Tube Size
Check Valve
Saf-T-Seal Tip
EB-168
3/4"
3/8"
Integrated
Option
EB-155
1"
1/2"
Integrated
Option
HS-075
3/4"
3/8"
Option
HS-100
1"
1/2"
Option
HS-125
1-1/4"
3/4"
Optional
Not Available
HS-150
1-1/2"
1"
Optional
Not Available
HS-200
2"
1-1/2"
Optional
Not Available
HS-250
2-1/2"
2"
Optional
Not Available
HS-300
3"
2-1/2"
Optional
Not Available

O&M Manual - HS Series with Integrated Check Valve

O&M Manual - HS Series

This range is similar to the Heavy Service range but includes an expanded range of materials.

Series
Process Connection Size
Solution Tube Size
Check Valve
Saf-T-Seal Tip
HC-075
3/4"
3/8"
Option
HC-100
1"
1/2"
Option
HC-150
1-1/2"
1"
Optional
Not Available
HC-200
2"
1-1/2"
Optional
Not Available
HC-250
2-1/2"
2"
Optional
Not Available
HC-300
3"
2-1/2"
Optional
Not Available

O&M Manual - HC Series with Integrated Check Valve

O&M Manual - HC Series

Using a similar design to the Heavy Service range, the Flanged Retractable have by default a flanged ball valve at the process connection, allowing connection to flanged process pipes without the need for adaptor flanges.

Flanged Units - General Brochure

Series
Process Connection Size
Solution Tube Size
Check Valve
Saf-T-Seal Tip
FL-075
3/4"
3/8"
Integrated
Option
FL-100
1"
1/2"
Integrated
Option
FL-125
1-1/4"
3/4"
Optional
Not Available
FL-150
1-1/2"
1"
Optional
Not Available
FL-200
2"
1-1/2"
Optional
Not Available
FL-250
2-1/2"
2"
Optional
Not Available
FL-300
3"
2-1/2"
Optional
Not Available

O&M Manual - Flanged Units

Non-Retractable Chemical Injection Quills

Non-Retractable (or Fixed type) Chemical Injection Quills are the simplest method of getting chemical into the main flow stream, but to maintain or service the system, the process line must be depressurised and drained. Use these on small systems where the process main can easily and economically isolated for maintenance.

Open Channel (OC Units) are designed for immersion in a channel to distrubute chemical.

These are the simplest range and design of injection quills.

Non Retractable - General Brochure

Series
Connection Type
Process Connection Size
Inlet Connection Size
Solution Tube Size
Check Valve
Quick Disconnect Coupling
Saf-T-Seal Tip
IQ-50
Threaded
1/2"
1/2"
1/4"
Integrated
No
Not Available
IQ-75
Threaded
3/4"
1/2"
1/4"
Integrated
No
Not Available
BCK-50
Threaded
1/2"
1/4"
Integrated
Yes
Not Available
BCK-75
Threaded
3/4"
1/2"
1/4"
Integrated
Yes
Not Available
EB-110
Threaded
1/2"
1/2"
3/8"
No
Optional
EB-111
Threaded
3/4"
3/4"
1/2"
Optional
No
Optional
EB-113
Threaded
1"
1"
3/4"
Optional
No
No
CFI
Flanged
Varies
Varies
Varies
No
Optional
CFT
Flange x Thread
Varies
Varies
Varies
No
Optional
OCDL
SWJ Union
Varies
Varies
Varies
N/A
No
No
OCDT
Flanged
Varies
Varies
Varies
N/A
No
No

O&M Manual - IQ Series

O&M Manual - BCK Range

Sample Probes

Sample probes take a water sample from the mid section of a pipeline. This means a truely representative sample is taken rather than from the inside surface of the pipe.

Our sample probes are available as either retractable or non retractable designs.

The representative process sample is drawn from the mid section of the process pipe through the bevelled tip of the probe. The isolation on the end of the probe allows for either use of the probe for simple jar sampling or for connection to a sample line running to an analyser.

Sample Probes - Retractable and Fixed - General Brochure

Series
Type
Process Connection Size
Sample Connection Size
Probe Size
EB-108
Non-Retractable
1/2"
1/2"
3/8"
EB-109
Non-Retractable
3/4"
3/4"
1/2"
SP-050
Retractable
1/2"
1/2"
1/4"
SP-075
Retractable
3/4"
1/2"
3/8"
SP-100
Retractable
1"
1/2"
1/2"

O&M Manual - Retractable Type

O&M Manual - Fixed Type

Accessories

H2O Rx supplies accessories to assist in making your injection quill simple to install and maintain.

Accessories include:

Accessory
Description
Chemical Inlet Valve Assembly
Made to ensure that chemical lines can be effectively isolated, and the quill checked and maintained without damaging installation pipework. Especially useful for large injection quills.
Brochure
Flexible Hose Assembly
For smaller quills a simple hose connection will allow the quill to be retracted.
Brochure
Security Enclosure
Security enclosures can help ensure that injection quills are not interfered with.
Brochure
Secondary Containment Box
Secondary containment around the injection quill is sometimes required. H2O Rx can provide a customised solution to provide secondary containment while still allowing the quill to be maintained.
Brochure

 

Additional Resources

Description
Downloads and Data
Catalogue: Of Saf-T-Flo Chemical Injection Quills and Sparges.
Chemical Injection Valves
Video – Importance of Chemical Injection Quills
Video: Insert and Remove a 1000 kPa rated Injection Quill.
Video: Insert and Remove a 1700 kPa rated Injection Quill.
Video: Saf-T-Seal Tip.
Video: Quick Release Coupling.
Video: Cutting a 1000 kPa unit to suit.
Video: Cutting a 1700 kPa unit to suit.
Pressure Testing Results. Note that some part numbers have changed since the tests were performed.
Pressure Test Results
Flow vs Head Loss data. Note that some part numbers have changed since the tests were performed.
Flow / Headloss Results
H2O Rx can help select the most appropriate injection quill for your application. The schedule (downloadable in .xlsx format) prompts for the key information that we need to select the most suitable quills for your project.
Injection Quill Schedule - Download