Nom. diam.

500 l/min

Nom. press.

PN 6, PN 10, PN 25, PN 40 or PN 63

Materials

• Housing

CrNiMo steel, cast steel, cast iron or spheroidal iron

• Meas. chamber

CrNiMo steel or cast iron

• Rotary piston

Cast iron or carbon, Ni-resist, hard rubber, PTFE, PCTFE

Materials and max. permissible liquid temperatures

Casing and measuring chamber

Temperature range

• Cast iron, spheroidal graphite, cast steel, Cranium steel

• -30 to +300 °C

• Bronze

• -30 to +200 °C

• Cast iron/enamel,
  duroplast measuring chamber

• -20 to + 80 °C

Error limits

Error limits

Between 0.2 % and 0.5 % of the correct value (depending on the metered fluid, the measuring range and the relevant calibration regulations) except for rotary-piston meters DN 15 and acid-resistant meters with PCTFE pistons, where 1 % of the actual value applies.

Adjustment

Within 0.05 %

Controllability

In steps from 0.01 %

Rated loss

Max. permissible 3 bar, for acid resistant meters max. 0.5 bar

Transmission from wet to dry space

Gland-free, using permanent magnet coupling

Installation position (axis of meter mechanism)

• Rotary-piston meters for industrial use

• Automatic batchmeter

Vertical

• Special designs

• Rotary-piston meter for oil fuels

Any

• Rotary-piston meter for liquefied gas

Meter axis vertical

Special inlet and outlet pipe sections

Not necessary

Pipe connection

Flange drilled to DIN 2501, DIN 2547 (only PN 63)

Filter size (mesh width)

0.8 for rotary-piston meter

Certificate and approvals

Classification according to pressure equipment directive (DRGL 97/23/EC)

• 7MR1410 and 7MR1420

For liquids of fluid gas group 1; complies with requirements of article 3, paragraph 3 (sound engineering practice SEP)

• 7MR1430 and 7MR1440

For liquids of fluid gas group 2; complies with requirements of article 3, paragraph 3 (sound engineering practice SEP)

For liquids of fluid group 1 on request