TG-F2289-E04

AM3000 Series MICRO FLOWMETER

10

TOKYO KEISO CO., LTD.

ADDITIONAL SPECIFICATIONS

1. Gas damper (Model AM3000/DU)

A gas damper which requires no damper liquid is available for gas measurement. A mechanical damper consisting of a cylinder and a

piston is connected to the float rod bearing.

This type needs no external damping mechanism at the bottom of the flowmeter, and the gas does not restrict flow, which allows flexible

piping designs.

Furthermore, there is no need for filling damper liquids, reducing the maintenance work. The gas damper is particularly useful for

low-pressure gas applications which may cause hunting of the float and which do not allow damping liquids. A gas damper is highly

recommended for applications with a pressure of less than 0.3 MPa and no needle valve at the downstream.

Note that this type of gas damper cannot be used for liquids or condensable vapors. Chlorine gas, which easily combines with other

chemicals, or gases containing rust, dust, oil and other materials, could cause the flowmeter to malfunction.

46

49

105

65

43

219

49

105

65

219

43

46

●Gas damper (AM3000/DU) (screw connection)

●Gas damper (AM3000/DU) (flange connection)

Thread size

1/4

3/8

1/2

L（mm）

220

200

230

Approx. mass

（kg）

1.7

1.6

1.8

Note: Screw sockets are provided for

1/4 and 1/2.

Note: The gas damper cannot be used

for high-temperature types.

Flange size

(mm)

10

15

20

25

Approx. mass

(kg) [JIS 10K]

2.7 2.8 3.1 3.9

Note: Screw sockets are provided for

1/4 and 1/2.

Note: The gas damper cannot be used

for high-temperature types.

Note: Thread size of the body: Rc 3/8