There are 2 types of flow meters adapters such as thread and welding type
Thread type
- There are 2 thread types, external thread and internal thread, for option according to piping experiences or types of pipes on equipments.
- If the material for male and female threads are different, scrap may be generated when male and female threads in different materials are connected. Users have to pay attention to this possible problem to prevent clogging.
| External thread |
Internal thread |
|
 |
Schematic diagrams for external thread and internal thread
- Spec for threads
| Thread size |
Thread type |
SPECS |
Material |
| 1/2" |
BSPT(Imperial units)
NPT(American units)
|
External thread
Internal thread
|
UPVC
PP
PVDF
PSU
|
| 3/4" |
| 1" |
| 1-1/2" |
| 2" |
Note: As there are various specs and material combinations, which are not all in stock, please ask for the stock information before placing an order.
Welding Type
- For each size of each pipe standard, refer to the chart below.
| Size |
Japanese standard
|
JIS MAX
|
American standard |
European standard |
Taiwanese standard
(Nanya pipes)
|
Material |
| 1/2"
|
22 |
|
21.34 |
20 |
22
|
PP
PVDF
UPVC
AISI316
AISI303
|
| 3/4"
|
26 |
26.15 |
26.67 |
25 |
26 |
| 1"
|
32 |
32.15 |
33.4 |
32 |
34 |
| 1-1/4" |
38 |
|
42.16 |
40 |
42 |
| 1-1/2"
|
48 |
|
48.26 |
50 |
48 |
| 2" |
60 |
|
60.32 |
63 |
60 |
| 2-1/2" |
76 |
|
73.03 |
75 |
76 |
| 3" |
89 |
|
88.9 |
90 |
89 |
How to measure the outer diameter of pipes?
- As shown below, the outer diameter of pipes in equipments is equal to the inner diameter of the welding type adapter.
Installation
- For detailed installation instructions, please refer to “How to Correctly Install Flowmeters?”
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