1. Reduced or Full Port
2. Construction: B.B&W.B; OS&Y
3. Gasket: Stainless Steel+Graphite, etc.
4. Renewable Seat
5. Material for trim is depend on client requirement&operating condition
6. Design&Manufacture: API602; DIN; BS5352; etc
7. Socket Welding Dimension: ANSI B16.11
8. Screw End Dimension: ANSI N1.20.1
9. Inspect and Test: API598; EN12266-1