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PRECISION METERS

Brass Multi-Jet Hot Water Meter 15mm & 20mm

Domestic Water Meter

A reliable and accurate brass hot water meter designed for measuring hot and cold potable water in domestic and small commercial systems. This multi-jet water meter is ideal for sub-metering, apartments, and residential properties, offering Class B accuracy, DZR brass durability, and pulse-ready capability for monitoring and billing.

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Brass Hot Water Multi-jet: 15mm DZR brass hot water multi-jet inferential water meter 165mm long

Brass Water Meter for Domestic and Sub-Metering Applications

The Brass Multi-jet Hot Water Meter is designed for accurate water measurement in residential and small commercial systems.
It is commonly used for:

  • Domestic water metering
  • Apartment blocks and sectional title schemes
  • Sub-metering for billing and usage tracking
  • Small business and office applications


If you need a durable, accurate, and cost-effective brass water meter, this model is built for everyday use.

What is a Multi-Jet Water Meter?

This model is specifically designed for hot water measurement up to 90°C, making it suitable for:

  • Geyser systems
  • Hot water reticulation
  • Residential hot water usage tracking

Unlike standard cold water meters, this hot water meter maintains accuracy and reliability under higher temperature conditions.

FEATURES

  • Class B approved to SANS 1529-1:2019
  • Hot water compatible up to 90°C
  • DZR brass body for corrosion resistance
  • Pulse ready for remote reading and monitoring
  • Dry dial register for easy reading
  • Removable strainer for field maintenance
  • 1600 kPa pressure rating
  • Less affected by suspended solids
PRODUCT BROCHURE
SPEC SHEET
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Installation Instructions

Thank you for choosing the Precision Meters, Brass Multi-jet Water Meter (Hot).

This device has undergone thorough testing and verification at Precision Meters’ SANAS Accredited Verification Laboratory, conducted by a certified Verification Officer, to ensure it meets SANS 1529-1:2019 Class B specifications. It is supplied in full working order.

As a precision instrument, the water meter features exacting tolerances between its moving parts and is designed exclusively for measuring potable water. Exposure to grit, sand, or other suspended solids can cause permanent damage to the meter. Such damage incurred during installation is not covered by the Precision Meters warranty.

To ensure proper installation, it is imperative that the installer maintains cleanliness throughout the process. Thoroughly flush the pipeline before installing the meter.

This water meter is approved by the NRCS for both vertical and horizontal installations. Its accuracy is unaffected by the angle of installation.

For installation, use the appropriate water meter tailpieces, which are available separately. Note: Standard female pipe adaptors must not be directly screwed onto the inlet/outlet of the water meter.

Please be aware that this meter is designed for hot water with a maximum operating temperature of 90 °C. Higher temperatures will irreparably damage the meter. Avoid using solder or applying heat near the meter during installation, as heat can travel through the pipe and damage the meter's internal components.

To prevent damage, do not install the meter where it may be exposed to shock, cavitation, water hammer, or surges caused by rapid valve operation. Ensure that the pipework aligns properly to avoid installation stresses on the meter. Additionally, the meter must be installed in a location protected from freezing, as frozen water can damage or burst the meter. Install at least one meter away from areas with potential freeze risks, such as a standpipe.

  1. Attach the separately supplied tailpieces to the water meter using the included sealing washers.
  2. Apply P.T.F.E. thread sealing tape to the male threads of the tailpiece linings.
  3. Screw appropriate female pipe adaptors onto the male end of the tailpiece lining. Note: Do not overtighten to prevent leaks; the thread sealing tape ensures the waterproof seal.
  4. Select a position where the meter will always remain full of water and avoid placing it at the discharge end of a pipe.
  5. Follow the flow direction arrow cast into the meter body, and ensure the meter is installed correctly. A built-in non-return valve will prevent flow if installed in reverse.
  6. Install a shutoff valve in the pipeline upstream of the meter for easier future maintenance.
  7. Fit the meter by connecting the pipe to the adaptors and tightening the fittings.
  8. When charging the lines, turn the water on gradually to expel air before fully opening the valve. Introducing high-velocity air can irreparably damage the meter. The pipeline must be entirely filled with water and all air expelled before the valve is fully opened to ensure correct operation.

Follow these steps to return a faulty Brass Multi-jet Water Meter (Hot) to Precision Meters:

Step 1: Documentation

Provide the invoice and meter serial number.

Include a copy of the invoice to verify the warranty period.

Step 2: Contract Review

Complete the Contract Review Document and obtain written consent from Precision Meters to open the meter for internal inspection.

Step 3: Inspection Fee

Pay a fee of R300 per meter for testing or internal inspection. 

Provide proof of payment for COD clients or a purchase order for account clients.

Step 4: Shipping Costs

Return the meter to our Cape Town laboratory at your expense. 

Shipping costs to Cape Town are not covered if the meter is handed in at our Johannesburg branch.

Step 5: Purchase Order

Submit a purchase order or acknowledgment letter for testing fees and acceptance of costs.

Step 6: Plumber Costs

Precision Meters does not cover plumbing costs for removing or replacing meters until the cause of failure is determined.

Step 7: Complete Documentation

Ensure the Contract Review Document is filled out accurately.

Step 8: Dispatch Meter

After completing the above steps, send the faulty meter(s) to our Cape Town facility for testing and inspection.

Step 9: Testing and Reporting

Upon receipt, the meter will be tested and inspected.

An official report will outline the next steps.

Step 10: Finalising the Process

If the meter is found to be faulty due to manufacturing defects, it will be replaced at no charge.

If not, you will be responsible for inspection costs and can request a repair quote or collect the meter as is.

Following these steps will ensure a smooth process for handling returns and inspections of your Brass Multi-jet Water Meter (Hot).