Bürkert Mass Flow Controller (MFC)/mass Flow Meter (MFM) for Liquids

The mass flow controller (MFC) / mass flow meter (MFM) Type 8756 is particularly suitable for the very precise measurement or control of small quantities of liquid that also require a medium-separated sensor. The measurement principle of the sensor is based on the Coriolis effect and is completely independent of the medium. Pressure and temperature deviations have no impact on the measuring accuracy. In addition to the flow rate, the density and temperature of the liquid are measured. The device design enables a stable flow measurement that is robust to external impacts and does not require a zero-point adjustment when the process conditions change. All wetted materials are highly resistant and allow use for a wide range of liquids, whether aggressive or neutral media. Type 8756 is available in the variants MFM, MFC with an interface for a modular actuator, MFC with integrated proportional valve and MFC with integrated micro annular gear pump. The high-precision pump is self-priming and the space in contact with the medium is sealed hermetically. It offers a very large control range and generates extremely low pulsations. This variant is used as a control or dosing system for liquids which have to be conveyed from an unpressurised container.

Housing

Aluminium

Base block (wetted)

Stainless steel 1.4404/316L (optionally with inspection certificate 3.1 according to EN 10204)

Sensor (wetted)

Stainless steel 1.4404/316L (optionally with inspection certificate 3.1 according to EN 10204)

Seal (wetted)

FFKM or PCTFE, metal is possible in the modular variant

Total weight

> 2 kg

LED display

RGB-LED according to NAMUR NE107

Performance data

Size 1 Size 2

Nominal flow rate

≤ 30 kg/h ≤ 150 kg/h

Dosing range

0.05…100 g 0.5…1000 g

Dosing time

0.05…7 s 0.05…7 s

Dosing precision

0.2 % MV for dosing quantity ≥ 0.2 g 0.2 % MV for dosing quantity ≥ 5 g

Measuring accuracy

± 1.0 K at flow rate > 1.5 kg/h ± 1.0 K at flow rate > 5.7 kg/h

Repeatability

± 0.5 K at flow rate > 1.5 kg/h ± 0.5 K at flow rate > 5.7 kg/h

Tightness to the outside (helium)

< 10 - 6 mbar*l/s (depending on seal material) < 10 - 6 mbar*l/s (depending on seal material)

Actuator

Size 1 Size 2

HS Code

9026.10

• Burkert 8756
• Buerkert 8756
• Bürkert 8756
• Type 8756
• Burkert Type 8756