Yufeng Machinery offers a comprehensive range of valve testing and grinding equipment, serving valve manufacturers, petrochemical plants, power stations, natural gas facilities, water supply engineering projects, and valve repair workshops worldwide.
Valve Testing Machines
|
Series |
Type |
Testing Range |
Application |
|
YFJX-B / BQ Series |
Claw-grip hydraulic valve tester |
DN15 – DN1000 |
Flanged gate valves, globe valves |
|
YFJX-H Series |
Top-pressure hydraulic valve tester |
DN15 – DN800 |
Flanged valves, high-pressure testing |
|
YFJX-D Series |
Butterfly valve hydraulic tester |
DN50 – DN1600 |
Butterfly valves, wafer-type check valves |
|
YFJX-L Series |
Vertical hydraulic valve tester |
DN15 – DN200 |
Flanged, threaded, socket-weld valves |
|
YFJX-LQ Series |
High-pressure valve tester |
DN15 – DN100 |
Precision high-pressure testing |
|
YFJX-A Series |
Safety valve tester |
DN15 – DN300 |
Safety valve set pressure, sealing tests |
Intelligent Valve Testing Systems
Our intelligent valve testing systems represent the latest advancement in valve testing technology. These systems feature computer connectivity with data printing capabilities, providing precise test records and comprehensive reporting. Available in both semi-automatic and fully automatic configurations, they significantly improve testing efficiency and accuracy while reducing human error. Models such as H300 (with computer), H400, H600, and H750 have been widely adopted by customers across China.
Key Features:
√ Computer data acquisition and printing
√ Semi-automatic and fully automatic options available
√ Real-time pressure monitoring and recording
√ Test report generation and storage
√ PLC control with touch screen interface (fully automatic models)
√ Automatic pressure holding and timing
Grinding & Lapping Equipment
|
Equipment |
Application |
|
Valve Seat Grinder |
Valve seat sealing surface grinding |
|
Valve Plate Grinder |
Valve plate (disc) surface finishing |
|
Valve Body Grinder |
Valve body sealing surface restoration |
|
Valve Disc (Gate) Grinder |
Gate valve disc sealing surface lapping |
|
YFJX Planetary Lapping Machine |
Gate valve disc sealing surface lapping (available in models for DN100-DN1200) |
|
YFJX-QT Series Dual-Valve-Seat Matching Grinder |
Hard-sealed ball valves (DN50-DN250) |
|
YFJX-QT600 Single-Valve-Seat Matching Grinder |
Large ball valves (DN300-DN600) |
|
YFJX-LM300 Four-Station / Multi-Head Grinding Machine |
Hemisphere and valve seat grinding (available in 4-head, 6-head, and 9-head configurations) |
Additional Equipment
√ YFJX Drilling & Tapping Integrated Machine
√ Scrap Blocking Machine (Hydraulic Baler) — Patent-protected adjustable design
√ Custom Non-standard Equipment — Tailored solutions based on customer requirements
Yufeng Machinery equipment is trusted across multiple industries where valve reliability is critical:
√ Valve Manufacturing— Production testing and quality assurance
√ Petrochemical Industry— Pressure testing for refinery and chemical plant valves
√ Oil & Gas / Natural Gas— Pipeline valve testing and maintenance
√ Water Supply & Drainage Engineering— Municipal and industrial water system valves
√ Power Plants— High-pressure valve testing for boiler and turbine systems
√ Valve Repair & Maintenance Workshops— Aftermarket service and refurbishment
