Altair V5 Concentric
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Specifications
- Model: ALTAIR V5 CONCENTRIC ROTARY PISTON METER
- Flow Rates:
- 4Q3 = 2.5 m3/h
- Q3 = 4 m3/h
- Approval: MID Approval up to R=1000
- Starting Flow Rate: 0.4 l/h (for Q3 = 2.5 m3/h and Q3 = 4
m3/h) - Body Material: Composite or brass
- Application: Cold water
Product Usage Instructions
Installation
- Ensure the water temperature is within the specified range for
operation. - Use a special wrench provided by Diehl Metering for fitting or
removing the meter. The two seals should remain on the meter when
it is removed. - Make sure to connect the meter securely using appropriate
thread connections.
Maintenance
Regularly check for any leaks or damage to the meter. Contact
Diehl Metering for any maintenance or repairs needed.
Reading the Meter
Read the flow rate displayed on the meter to monitor water
consumption.
FAQ
Q: What should I do if I notice a leak in the meter?
A: If you notice a leak, immediately turn off the water supply
and contact Diehl Metering for assistance.
Q: Can I use this meter for hot water applications?
A: No, this meter is designed for cold water applications
only.
Q: Is there a warranty for this product?
A: Please refer to the warranty information provided by Diehl
Metering or contact them directly for warranty details.
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ALTAIR V5 CONCENTRIC
ROTARY PISTON METER
APPLICATION ALTAIR V5 CONCENTRIC is the latest generation of volumetric water meters specifically designed for installation on coaxial base in manifold. ALTAIR V5 CONCENTRIC adapts to the most demanding environments and varying water qualities while maintaining its excellent metrology. Developed within the MID framework, it complies with European standards and holds certificates of sanitary conformity. Modular, ALTAIR V5 CONCENTRIC may be fitted at any time with an IZAR clip-on module converting it into a communicating meter, ready for mobile reading (walkby, drive-by, passive drive-by) or fixed network reading (radio/wired). FEATURES
4Q3 = 2.5 m3/h / Q3 = 4 m3/h 4MID approval up to R=1000 4Starting flow rate at 0.4 l/h (for Q3 = 2.5 m3/h and Q3 = 4 m3/h) 4Composite or brass body 4Cold water
ALTAIR V5 CONCENTRIC
ROTARY PISTON METER
METROLOGICAL DATA Nominal diameter Permanent flow rate R standard* Body Starting flow rate Minimum flow rate* Transitional flow rate* Overload flow rate Head loss at Q3 Head loss at Q4 Kvs (deltaP=Q²/Kvs²)
*Other values on request
APPROVAL
MID Approval Standards Sanitary conformity
DN Q3 Q3/Q1
mm m³/h
l/h
Q1
l/h
Q2
l/h
Q4
m³/h
bar
bar
15 2.5 160 brass / composite 0.4 15.62 25 3.125
0.32
0.50 5.13
ALTAIR V5 CONCENTRIC LNE-39018 | Type A3 EN 14154 | ISO 4064 | OIML R49 ACS | AoC DEU | WRAS
20 4 160 brass / composite 0.4 25 40 5
0.61
0.94 5.13
REACH
Information pursuant to Article 33 (1) of Regulation (EC) No 1907/2006 of the European Parliament and of the Council of 18 December 2006: This product series contains components with the following substances in a concentration of more than 0.1% weight by weight (w/w): – Lead (CAS no.: 7439-92-1)
TEMPERATURE AND PRESSURE
Water temperature Ambient operating temperature Storage temperature Nominal pressure
ALTAIR V5 CONCENTRIC °C 0.1 … +50 °C +1 … +55 °C -10 … +55 bar 16
DIMENSIONS
Height Width Thread connections Weight (brass version) Weight (composite version)
ALTAIR V5 CONCENTRIC mm 113.2 mm 91.3 inch 1″½ kg 0.82 kg 0.39
Diehl Metering GmbH Industriestrasse 13 91522 Ansbach Germany Phone: +49 981 1806-0 Fax: +49 981 1806-615 metering-germany-info@diehl.com www.diehl.com/metering Subject to technical adjustments
06.08.2025 · 2
ALTAIR V5 CONCENTRIC
ROTARY PISTON METER
Fitting and removing wrench A special wrench is required for fitting or removing the meter (contact Diehl Metering). The two seals remain on the meter when it is removed.
PRECISION CURVE
Q3 = 2.5 R160
OPTION – Plastic register
Q3 = 4 R160
Diehl Metering GmbH Industriestrasse 13 91522 Ansbach Germany Phone: +49 981 1806-0 Fax: +49 981 1806-615 metering-germany-info@diehl.com www.diehl.com/metering Subject to technical adjustments
06.08.2025 · 3
ALTAIR V5 CONCENTRIC
ROTARY PISTON METER
Economic Actor Information Applicable regulation and legal obligations for products may change. DIEHL METERING monitors applicable regulation to ensure their products comply at the date of placing on the market. Each economic actor making products available on the market thereafter must independently keep informed about the current applicable regulation. For questions, please contact: metering-germany-info@diehl.com
Diehl Metering GmbH Industriestrasse 13 91522 Ansbach Germany Phone: +49 981 1806-0 Fax: +49 981 1806-615 metering-germany-info@diehl.com www.diehl.com/metering Subject to technical adjustments 06.08.2025 · 4
Documents / Resources
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diehl Altair V5 Concentric [pdf] User Guide Altair V5 Concentric, Altair, V5 Concentric, Concentric |