1. Unibody design
2. Blow out proof stem, fire-proof and anti static design
3. Design and manufacture: API 6D
4. Face to face: ASME B16.34, BS5351
5. Flange dimensions: ASME B16.5 (MSS SP-44)
6. Temperature&pressure: ASME B16.34, BS5351
7. Inspection and test: API 598, API 6D
8. Materials: WCC, WCB, LCB, LCC, CF8, CF8M, CF3M
9. Size: 2" ~ 48"
10. Class: 150LB ~ 1500LB
11. Valve operator: Handle, gearbox, electric