LZB-DK800 micro-flow glass tube rotameter with adjusting valve
LZB Glass Tube Rotameter

LZB-DK800 Glass Tube Rotameter

LZB-DK800 micro-flow glass tube rotameter with an integral adjusting valve, DN4 and DN6, ±2.5% accuracy and a -20 to +120 °C working range, with a cone tube and float that can be replaced without removing the meter from the line.

Specifications

Series
LZB-DK800 glass tube rotameter
Models
DK800-4, DK800-4F, DK800-6, DK800-6F
Nominal Sizes
DN4 (DK800-4/4F), DN6 (DK800-6/6F)
Water Flow Ranges
DK800-4: 0.25-2.5 L/h; DK800-6: 0.5-5 to 16-160 L/h (selectable)
Air Flow Ranges
DK800-4: 0.5-5 to 6-60 L/h; DK800-6: 10-100 to 430-4300 L/h (selectable)
Accuracy
±2.5%
Working Temperature
-20 to +120 °C
Working Pressure
≤ 1.0 MPa
Connection
M8X1; hose or metal-tube connection; metal protective tube OD 5 mm
Variants
F suffix = anticorrosive type
Service Feature
Cone tube and float replaceable without removing the meter from the line

Where the LZB-DK800 Fits

The LZB-DK800 is a micro-flow glass tube rotameter for measuring and adjusting very small liquid and gas flows. Its cone tube and float can be replaced without taking the meter out of the line, which keeps maintenance quick on skid-mounted and analyzer installations.
It is distinct from the hose-barb LZB-4/6/10 line: the DK800 carries an integral adjusting valve, holds ±2.5% accuracy, works from -20 to +120 °C and is available in an anticorrosive F version.

Construction and Specifications

Sizes are DN4 and DN6 with an M8X1 connection and a 5 mm metal protective tube; hose or metal-tube connection can be selected. Water ranges run from 0.25-2.5 L/h on the DK800-4 up to 16-160 L/h on the DK800-6, and air ranges from 0.5-5 L/h up to 430-4300 L/h depending on the selected span.
Working pressure is up to 1.0 MPa across both sizes.

Ordering Guidance

Specify the DK800-4 or DK800-6 body, the measuring span from the range table, the medium (water-referenced liquid or air-referenced gas) and whether the anticorrosive F version is required.

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