Patent ID: 11920451
Assignee: CANTEX INTERNATIONAL, INC.
Field: Mechanical elements (Mechanical engineering)
Classification: CPC E  F | IPC E  F

Claim 15:
16. A plug valve adapted for controlling flow through high-pressure fluid flow lines, said plug valve comprising:
(a) a valve chamber, said chamber having an undercut;
(b) first and second valve seat inserts mounted in said chamber undercut;
(c) a rotatable valve, body, said valve body comprising:
i) a midsection;
ii) a flow port extending through said midsection;
iii) a passage extending between an upper surface and a lower surface of said midsection;
iv) an upper valve stem extending from said midsection upper surface; and
v) a lower valve stem extending from said, midsection lower surface;
vi) wherein the upper surfaces of said valve body exposed to internal fluid pressure and lower surfaces of said valve body exposed to internal fluid pressure have substantially equal surface areas.