Back pressure is location structure for valve

• Main Authors: LI PEIMEI, HE JINGBIN, CONG CHENG, YANG WENCHUAN, SUN PENG
• Format: Patent
• Language: English
• Published: 30.12.2015
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

The utility model provides a back pressure is location structure for valve, including the valve body, offered fluid passage along the axial of valve body, the case is installed to fluid passage's middle part inner wall, and the fluid passage of case upper end is that the longitudinal section is...