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RA65/FA65 Low Flow Range Glass Variable Area Flow Meter

Brand: BAMO
BAMO Mesures RA65/FA65 Low Flow Range Glass Variable Area Flow Meter, ISME Malaysia
  • For liquids and gases
  • Direct reading on a calibrated tube
  • Ranges from 0.5 l/h up to 160 m³/h
  • Materials: Glass, steel or stainless steel
  • Adjustable limit value switches
  • Analogue output: 4-20 mA or 0-10 V
  • ATEX version on request
  • Suitable for: Water treatment, industrial process (paper mill, textiles etc.), chemical and pharmaceutical industries, heating and cooling plants
Nominal pressure:  PN 10 at 20 °C
Pressure limits:  Refer to the table ”Measuring ranges” in datasheet
Operating temperature:  Max. 80 °C (Option : 100 °C)
Scale factor:   1:10
Accuracy class:  According to VDE/VDI 3513 page 2 (08/2008)
Error limit (G):  1.6 %
Linear limit (qG): 50%
Fittings / RA 65:  Unions, 2 pieces
Inner cylindrical insert,
thread according to DIN EN 10226-1 (ISO 7-1)
Fittings / FA 65:  Flanges PN 10 according to DIN EN 1092-1, other fittings on request
Corrosion protection:  Epoxy coating, glossy blue (RAL 5017)
Corrosion class:  C2

MATERIALS

Steel case:  Steel Pipe, P235, Option PVC lining ²⁾
Ends / RA 65:  S355 for sizes 19 to 36; Aluminum for size 43; Option PVC lining ²⁾
Flanges / FA 65:   S355; Option: with PVC lining ²⁾
Reading tube:  Borosilicate glass
Protective screen:  Perspex
Gaskets:  NBR; Options: FPM, EPDM, Silicone
Floats for liquids ¹⁾:  AISI 316 Ti (1.4571) (Options: PVC, PP, PVDF, PTFE)
Floats for gases ¹⁾:   Anodized aluminum (Options: PVC, PP, PTFE, PVDF, AISI 316 Ti (1.4571)
Floats for use of limit value switches ¹⁾:  AISI 316 Ti (1.4571) with magnetic core for liquids;
PVC with magnetic core for gases
Other materials on request

Note:
1) Floats of small sizes are non-guided. Size 30 and larger: Partly with guiding float rod, detailed table available on request.
2) PVC lining: All wet parts (excepted the glass tube) are of PVC. Protection of all parts in contact with media

BAMO RA65/FA65’s measuring principle is that of the variable area flowmeter, the float is moved by the fluid inside a calibrated conical glass tube. The borosilicate glass conical tube is inside a steel case with a transparent reading window.

Versions:

  • RA65: Fittings: Unions, BSP-F from ¼” up to 3”
  • FA65: Flanges from ND10 up to ND65
  • RA/FA65-MSK1: With bistable contact N.C.
  • RA/FA65-MSK2: With bistable contact N.O.
  • RA/FA65-MSKW: With bistable changeover contact
  • RA/FA65-EM: With analogue output 4-20 mA
  • RA/FA65-Ex: Explosion proof ATEX version

Limit switches: These flowmeters can be equipped with a magnetic float and Reed contacts, trigger points adjustable over the entire measuring range.

Analogue output 4-20 mA or 0-10 V: The transmitter is connected to a Hall effect linear signal ruler. The analogue signal is the image of the float position. The transmitter is connected via an M12 connector. This output is useful for applications using a PLC. The device is compact with a high level of repeatability.