Calibration Columns & Rotameters

For measuring chemical metering pump flow, an H2O Rx Calibration Column (or draw down cylinder) is ideal for calibration checks.

Typically, this is achieved by using a calibration column sized to measure the pump flow rate over a 1 minute (or occasionally 30 second) timeframe.

H2O Rx's Calbration Column range includes:

Stock sizes range from 100mL for 6 LPH pumps through to 20L for 1200 LPH pumps
Materials for chemical compatibility include:
- Plastic - PVC and Polyproylene
- Glass - with a range of wetted end connection materials including PVC, CPVC, Polypropylene, PVDF (Kynar), Teflon (PTFE), and 316SS.
Stocked types are typically threaded top and bottom connection. In addition, open topped and dust caps types are available in the plastic ranges.
Stocked connection types are typically BSP. In addition NPT in plastic and glass ranges, and socket and ANSI flanged in the glass ranges are also available..
Availability is typically exstock.

H2O Rx Calibration Column additional services and equipment include:

Modular instalation systems for the large 10L and 20L calibration columns
Assistance with sizing, specifications and drawings
Custom designed and built Calibration Columns

Calibration Columns

H2O Rx Calibration Columns (or draw down cylinders) are designed to be connected to the suction side of a pump. The "drawdown" is timed (typically over 1 minute) and the pumping rate (or flow) can then be calculated.

Features include:

Translucent
Range of materials for Chemical Resistance - PVC, Polypropylene, and Glass with PVC, CPVC, Polypropylene, PVDF (Kynar), Telfon (PTFE) and 316SS wetted end connections
Break Resistant
Threaded BSP and NPT for plastic and glass ranges
Socket or ANSI flange also in glass ranges
Easy to read graduations and lettering
Types include top and bottom connections, open top, and dust cap

Click on the below for a Brochure:

Modular Installation Systems

It is not always practical to install a 10L or 20L calibration column on a dosing skid. These are often field installed meaning your site costs are higher.

H2O Rx has developed an installation system for the large capacity calibration columns.

Benefits include:

Modular and quick installation system
Reduced site costs
Safe and effective for operators

Click Here for a brochure.

Oriface Plates

Orifice plates are designed to provide a known relationship between flow rate and the pressure drop across the plate.

H2O Rx has a standardised parametric design methodology to create an orifice plate design to suit your needs.

Design is automated to simplify the process and in accordance with AS 2360.1.1

Standard sizes range from DN50 to DN1200.

A design certificate detailing Flow vs Pressure Drop and Pressure Drop vs Flow in convenient look up tables is provided with each Orifice Plate.

Click Here for a brochure.

Rotameters

Rotameters are simple flow measuring devices for constant pressure applicaitons. Often used for dilution or carrier water applicaitons, these allow you to set a fixed flow rate of water to dose chemical into when paired with a suitable valve.

In ranges that cover 0.38 L/min to 50 L/min these units should suit most applications.

Click Here for a brochure.