1) Material
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Body
The body is made of STS 304 (27 kinds), which is used for all products of press-type stainless steel pipe fitting (around 150 products). STS 315 (32 kinds) is applied
according to the customer’s request.
-
O-ring
he O-ring is made of heat-resistant butyl rubber and EPDM rubber. The upper use temperature is 110°C.
However, if it is used for a long-term period, usage
under 80°C is recommended.
2) Performance
| 13SU | 20SU | 25SU | 30SU | 40SU | 50SU | 60SU | |
|---|---|---|---|---|---|---|---|
| Tensile test | 489 | 560 | 500 | 1020 | 1961 | 1530 | 2881 |
| Hydraulic test | OK | OK | OK | OK | OK | OK | OK |
| 2 million times of vibration test | OK | OK | OK | OK | OK | OK | OK |
| bending test | >30˚ | >30˚ | >15˚ | >23.5˚ | >26˚ | >23.5˚ | >15˚ |
| 400kgf/㎠ 10,000 times of pressure-proof flow test |
OK | OK | OK | OK | OK | OK | OK |
| bulk test (kgf-m) | 2.8 | 5.9 | 7.4 | 19.7 | 28.3 | 34.7 | >56.0 |
| O-Ring | heat resistant EPDM is used. Application in Europe: more than 23 years (no difficulties so far) Semi-permanent under lab condition. |
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| ETC | No difficulties have been reported in other tests, including the warm-water field test. |
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