No. They are variable-area rotameters read visually off the float, with no power, wiring or sensor.

Water Flow Meters

Vertically, with flow going upward. A horizontal installation will not give an accurate reading.

Female BSP threads — from 1/2″ on the LZS-15D up to 2″ on the LZS-65D.

Choose the model whose range brackets your normal operating flow rather than your peak flow — see the table above.

An internal rod that steadies the float. It is fitted to every model listed except the LZS-40.

These are supplied and scaled for water. Contact us if you need a rotameter for another liquid or for a gas.

Prices for each model are listed against the options above — contact us for quantities or a size not shown.

Inline rotameters for reading water flow at a glance in aquaculture and water treatment plumbing.

Price range: $80.00 through $120.00 ex GST

Option

Clear

Categories: Flowmeters, Plumbing Fittings

Applications: Aquaponics, Hatchery, LSS, Public Aquarium, RAS

Product Information

Inline variable-area rotameter for water — flow is read straight off the float, with no power, sensor or display
Six models from 1/2″ to 2″ BSP female, covering 60 L/h up to 40 m³/h
Precision-moulded clear body lets you confirm flow at a glance and inspect for fouling
Must be installed vertically with flow upward — a horizontal installation will not read correctly
Compact and lightweight: 202 mm long on the 1/2″ LZS-15D, 430 mm on the 2″ LZS-65D
Guide rod fitted on every model except the LZS-40
Suits RAS and hatchery header lines, aquaponics feeds, irrigation and general water monitoring
Sizing: match the model to your pipe connection first, then check your normal operating flow sits inside that model’s range. A rotameter reads best around the middle of its scale, so if your flow sits right at the bottom of one model’s range, step down a size.

Model	Connection	Flow range	Overall length	Guide rod
LZS-15D	1/2″ BSP female	60–600 L/h	202 mm	Yes
LZS-25D	3/4″ BSP female	300–3,000 L/h	226 mm	Yes
LZS-32D	1″ BSP female	0.6–6 m³/h (600–6,000 L/h)	288 mm	Yes
LZS-40	1 1/4″ BSP female	0.6–6 m³/h (600–6,000 L/h)	430 mm	No
LZS-50D	1 1/2″ BSP female	1–10 m³/h (1,000–10,000 L/h)	341 mm	Yes
LZS-65D	2″ BSP female	8–40 m³/h (8,000–40,000 L/h)	430 mm	Yes
All models	Water only	Read visually off the float — no power required	—	Vertical mounting, flow upward

Which way up do these mount?

What connection do they use?

Do they need power?

Which flow range should I pick?

What is the guide rod?

Are they suitable for anything other than water?

How do I get a price?

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