企业特殊行业经营资质信息公示
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PTFE lined butterfly valves Series 500
Body construction: Wafer
Face to face acc. to: EN 558 Series 20; ISO 5752 Series 20; API 609 Table 2
Connection between flanges: EN 1092 – 1; DIN 2631-32; ASME B16.5
Top flange acc. to: EN ISO 5211
Ma*ng acc. to: EN 19
Tightness check acc. to: EN 12266-1, rate A; ISO 5208, rate A; API 598 Table 5
