The high-pressure straight pipes( straight pipe assembly) produced by our factory through the digestion and absorption of introduced technology have 4 types: Pressure thread seal type, non-pressure thread seal type, integral type, and welded type, with specification being 1～4 and pressure being 7MPa～105MPa The length of integral straight pipe includes 1m, 1.5m, 2m, 2.5m and 2.8m. Provide the high-pressure straight pipes with various dimensions and pressures that adapt to sour environment according to the user needs.
Pressure threaded seal end connection is consist of : FIG402 union 、FIG602union 、FIG1002union 、FIG1502union ；rating working pressure between 28MPa（4000psi）and 105MPa（15000psi）.
Non-pressure threaded seal end connection is consist of ：FIG206union 、FIG602union、FIG1002union、FIG1502union；rating working pressure between 14MPa（2000psi）and 105MPa（15000psi）.
Solid end connection is consist of ：FIG602union、FIG1002union FIG1502union；rating working pressure between 42MPa（6000psi）and 105MPa（15000psi）.
Prevent sulfur solid end connection is consist of : ：FIG602union、FIG1002union、FIG1502union；rating working pressure between 35MPa（5000psi）and 70MPa（10000psi）
welding union is consist of ：FIG402union、metric screw threaded union 、FIG602union、FIG1002union、FIG1502union；rating working pressure between 28MPa（4000psi）and 105MPa（15000psi）
Welding flange end connection is consist of ：21/16″flange、29/16″flange、31/8″flange、41/16″flange、31/16″flange；rating working pressure between 21MPa（3000psi）and 105MPa（15000psi）
