Thermal energy and BTU meters family line illustration — Illustrative family drawing · actual WM15 configuration may differ

SANT / Thermal energy and BTU meters

WM15

Name: SANT WM15
Brand: SANT

Ultrasonic heat, flanged; 50-350 mm

PN16, IP68, Grade2, RS485 with external 24 VDC

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Supply from Hyderabad · India-wide delivery
Configuration, availability and commercial terms confirmed on quotation.

MODEL OVERVIEW

What the WM15 offers

PN16, IP68, Grade2, RS485 with external 24 VDC

Manufacturer’s documented description: SANT retail price list, August 2026, pp. 63–66. Options and qualifications above are retained as stated.

TECHNICAL DATA

WM15 specifications

Parameter	Documented value
Measuring principle	thermal energy btuSANT retail price list, August 2026, 63–66
Nominal diameter (DN)	50, 65, 80, 100, 125, 150, 200, 250, 300, 350S20 · 66
Connections	PN16 flanged in retail sheetS20 · 66
Sensor protection	IP68S20 · 66
Power supply	External 24 VDC for output; complete power arrangement not givenS20 · 66
Included outputs	RS485 Modbus; requires external 24 VDCS20 · 66
Pressure designation	PN16S20 · 66
Standards claim	Grade 2 as printedS20 · 66

Details to confirm for the offered configuration

These parameters are not established as exact-model values in this record. Some may not apply to this technology.

Q1 m3 h
Q2 m3 h
Q3 m3 h
Q4 m3 h
Working pressure and temperature
Approvals and scope

DUTY & SELECTION

Where to consider this type

The guidance below explains the technology. It does not extend this model’s documented service limits.

A water-volume meter tells you how much water passed. A thermal energy meter combines flow with supply/return temperatures and a calculator to determine transferred heating or cooling energy.

Full thermal energy and btu meters guide ↗

Installation and commissioning

Before the meter is selected

Matched temperature pair, thermowells and minimum ΔT
Water/glycol composition and concentration
Flow sensor position and calculator configuration
Energy units, complete-system uncertainty and output

Before the system is handed over

Confirm the installation drawing, orientation and access for service.
Match the actual flow range and permitted pressure loss to the project.
Record meter serial number, start reading and any output scaling.
Commission communications against the receiving system and retain the test record.

Read the installation guide ↗

Reading and communication

Documentation mentions: RS485. These may be optional or specific to a variant.

Discovery tags come from the documented description, including optional capabilities. Confirm inclusion and exact size/configuration.

A connected metering system is five parts: meter → interface or module → network or gateway → software → billing, dashboard or control system. A quotation should name who supplies and maintains each one. AMR-ready equipment may still require separately quoted radio, gateway, head-end and billing software.

Understand pulse, wired and wireless reading ↗

Documents and purchase checks

Read the SANT technical reference → · Browse the source index

Source: SANT retail price list, August 2026, pp. 63–66. Reviewed 2026-09-09.

Download product data (JSON)Request current drawing / datasheet ↗

Ask for these before ordering

Approved drawing for the exact model, size and configuration
Serial-number calibration or factory test record
Applicable approval certificate and exact scope
Installation manual and required straight pipe
Protocol/register map and output power requirements
Option/accessory codes with included components
Pressure-loss curve, flange drilling and face-to-face length
Current written commercial and warranty terms

SPECIFY YOUR REQUIREMENT

Get a quotation for WM15

Tell us the size and quantity you need. Add the fluid, flow or output requirement if known. You can review and send the enquiry from your email app on the next page.

Price and lead time are quoted for the selected size and configuration.