China scrap copper baler Manufacturer, Factory, Supplier

Yufeng Machinery strictly implements ISO9001 quality management system in production, relying on decades of R&D and manufacturing experience of valve testing equipment to launch the DN1200 Horizontal Hydraulic Top Press Valve Test Bench (Model YFJX-H). The whole machine fully complies with GB/T13927-2022, GB/T26480-2011 and API 598 international valve testing specifications, and is specially customized for large-diameter industrial flanged straight-through valves.

Manufactured strictly under ISO9001 quality management system by Wenzhou Yufeng Machinery, the Yufeng Machinery Horizontal Tiltable Jaw Clamping Valve Pressure Test Bench is specially developed for heavy-duty large-caliber flange valves, featuring a unique right-side 90° tiltable worktable design to solve the difficulty of inclined valve clamping and medium filling during testing.

Developed and manufactured by Wenzhou Yufeng Machinery, the Large Bore Gate Valve Disc Grinding Machine is a special sealing surface grinding equipment exclusively designed for gate plates of large-diameter gate valves ranging from DN500 to DN2000.

Yufeng Machinery factory's Dual Station Safety Valve Calibration Test Bench features double-station simultaneous testing, specially customized for flange-connected and thread-connected safety valves, greatly boosting factory inspection efficiency and cutting labor costs. It is equipped with multiple high-precision pressure gauges, realizing precise pressure regulation and stable long-time pressure holding for shell strength and sealing performance tests.

Yufeng Machinery factory's Split Safety Valve Pressure Calibration Test Bench is a single-station design specially developed for flange-connected and thread-connected spring-loaded safety valves. This bench integrates shell strength testing, valve seat seal testing, opening pressure setting, reseating pressure verification, and low-pressure air tightness inspection in one unit, offering easy operation and reliable results for factory QC and maintenance workshops.

This dedicated rotary worktable is an auxiliary accessory for valve lapping machines. It holds valve discs, valve clacks and other workpieces and delivers steady, uniform rotation, cooperating with lapping heads for even circumferential grinding. Adjustable speed adapts to sealing face fine lapping of valves in different materials and sizes. Robust construction supports heavy loads. Compatible with multiple valve lapping units, it greatly improves lapping precision and processing efficiency for valve production and repair.