Company News - 3 - Zhengzhou Jinggong Technology Co., Ltd

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Company News

Analysis of Causes for Blind Plate Valve Seal Failures

Analysis of Causes for Blind Plate Valve Seal Failures

By switching between the through-hole plate (open position) and the solid plate (blind position), they achieve unobstructed flow and complete isolation of pipeline media, serving as a vital guarantee for equipment maintenance, process switching, and safe production. In actual operation, poor sealing…... 2026/03/07

Line Blind Valves Manufacturer From China Famous Brand

ZZJG Valve as China Famous Line Blind Valves Manufacturer Brand, can provides high quality line blind valves. Its core product range includes: various of line blind valves, blast furnace gas blind valves, open-type blind valves, fully enclosed blind valves, control valves, pressure regulating valve …... 2026/02/28

The Key Role of the Spectacle Blind Valve in Gas Pipelines

The Key Role of the Spectacle Blind Valve in Gas Pipelines

In the vast and complex urban gas transmission and distribution system, safe operation is the primary prerequisite for ensuring people's livelihood and serving development. Faced with multiple operational needs such as daily pipeline maintenance... 2026/02/12

High-Efficiency Blind Valve for Oil & Gas Industry

High-Efficiency Blind Valve for Oil & Gas Industry

Today we're introducing a top-notch product specifically designed for the oil and gas industry—the ZZJG sliding blind valve. Its core advantage lies in its ability to rapidly isolate pipelines, operable by a single person. As the global energy sector seeks more reliable pipeline isolation solutions,…... 2026/01/04

ZZJG High-Pressure Blind Valve Successfully Passes On-Site Acceptance at CNPC Southwest Oil and Gas Field Branch

ZZJG High-Pressure Blind Valve Successfully Passes On-Site Acceptance at CNPC Southwest Oil and Gas Field Branch

CNPC announced that seven DN200 CLASS600 high-pressure blind valves manufactured by ZZJG (Zhengzhou Jinggong Technology Co., Ltd.) have successfully passed on-site acceptance at the Southwest Oil and Gas Field Branch. This successful acceptance not only demonstrates the company's outstanding capabil…... 2025/12/08

Philippine Long-term Customers Visit ZZJG Valve Factory

Philippine Long-term Customers Visit ZZJG Valve Factory

The delegation toured the production workshop, finished product warehouse, and quality inspection center. During the visit, the clients carefully examined the production line operation process, the performance of core equipment, and product processing techniques, focusing particularly on raw materia…... 2025/11/19

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