Azbil Corporation Installation
MagneW FLEX+/PLUS+ Electromagnetic Flowmeter Detector 2-31
2.5.2: Necessary parts
You will need the following parts to in stall the detector:
• Connecting bolts and nuts (available separately)
• Gaskets: Required when using grounding rings made of SUS material. Not
required when using grounding rings made of other materials.
• Protective Plate: Required when connecting the detector to polyvinyl chloride
(PVC) piping.
Gaskets
Gaskets are supplied with the grounding ring, except when it is made of SUS
material. If you are using SUS material, you must provide the gaskets. Azbil
Corporation recommends joint sheet or polytetraouroethylene (PTFE) gasket
material. For the inner diameters of the gaskets, see the following table. Rubber
gaskets are not recommended.
CAUTION
Using a gasket with too small a diameter can aect the ow velocity distribution,
resulting in inaccurate measurement.
Using a gasket with too large a diameter can cause leakage. Also, any solid
substance in the uid to be measured could accumulate between the gasket and the
ange, resulting in inaccurate measurement.
Table 2-7 Recommended inner diameters of gaskets
Bore diameter mm (inch) Inner diameter mm (inch)
2.5 (0.1) 11±1 (0.43±0.04)
5 (0.2) 11±1 (0.43±0.04)
10 (3/8) 11±1 (0.43±0.04)
15 (1/2) 16±1 (0.63±0.04)
25 (1) 25±1 (0.98±0.04)
40 (1½) 40±1 (1.57±0.04)
50 (2) 51±1 (2.01±0.04)
65 (2½) 64±1 (2.52±0.04)
80 (3) 76±1 (2.99±0.04)
100 (4) 101±1 (3.98±0.04)
125 (5) 124±1 (4.88±0.04)
150 (6) 148±1 (5.33±0.04)
200 (8) 196±1 (7.72±0.04)
250 (10) 246±1 (9.69±0.04)
300 (12) 296±1 (11.65±0.04)
350 (14) 346±1 (13.62±0.04)
400 (16) 396±1 (15.59±0.04)
500 (20) 496±1 (19.53±0.04)
600 (24) 596±1 (23.46±0.04)
700 (28) 701±2 (27.60±0.08)
800 (32) 801±2 (31.54±0.08)
900 (36) 901±2 (35.47±0.08)
1000 (40) 1001±2 (39.41±0.08)