- Design basis: ASME B16.34, API 608, DIN 3357, EN 12516, GB/T 1224, GB/T 12237.
- Face-to-face dimension: ASME B16.10, DIN 3202, GB/T 12221.
- Flanged ends: ASME B16.5, DIN 2501, GB/T 9113.1.
- Butt-welding ends: ASME B16.25.
- Socket welding ends: ASME B16.11.
- Wall thickness: ASME B16.34, EN 12516.
- Fireproof: API 607, ISO 10479.
- Inspection and test: API 6D, API 598, EN 12266, GB/T 13927.
- Product range: 1/2" - 10", DN 15 - DN 250.
- Materials of main parts: WCB, CF8, CF8M, WC6, WC.
- Seat materials: PTFE , RTFE or metal hard seal.