国产精品成人观看视频-人体内射精一区二区三区-亚洲av之男人的天堂-色欲av亚洲一区无码少妇

1. Pressure rating 6000psi standard 10,000psi on request.

2. The valve body designed according to ASME VⅢ DIVISION 1 Standard, the material meet the requirement of  ASTM concerning THE POWER STATION.

3. Standard design of stellite trim, Other alternative materials available on request.

4. Gland packing Graphoil(648℃) or PTFE(225℃) .

5. Safe bonnet design.

6. Internally loaded blow-out proof stem.

7. Non-rotating stem tip.

8. Rolled machined spindle drive thread.

9. 416ss Gland retainer.

10. Drive thread is up the gland seal, gland seal completely isolate with the drive thread.

11. Back pressure seal function.

12. Low-in & high-out flow type.