China valve seat grinding equipment Manufacturer, Factory, Supplier

Yufeng Machinery DN200-600 Vertical Gate Valve Disc Grinding Machine is designed for grinding and lapping sealing faces of gate valve discs from DN200 to DN600. German-designed Vertical bed with precision rotary structure for fine grinding and polishing.

Yufeng Machinery factory's DN80-DN300 Medium Horizontal Hydraulic Jaw Clamping Valve Test Bench is specially designed for shell strength and sealing performance tests on flanged end valves (ball, gate, globe, check, etc.) in the nominal diameter range DN80 to DN300. It supports both high‑pressure water (up to the corresponding test pressure, see table) and low‑pressure air (4 to 7 bar) as test media, enabling hydrostatic shell tests, high‑pressure liquid seal tests, and low‑pressure air tightness tests.

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.

Yufeng Machinery is a professional Hydraulic PTFE Lined Valve Press for Lining Processing manufacturer , focusing on lined valve, flange valve and corrosion-resistant chemical oil leakage valve press fitting and disassembly processes, integrated multi-cylinder synchronous hydraulic drive, real-time pressure monitoring gauges, heavy rigid gantry frame, and full hydraulic pressure regulation for standardized valve assembly workflows.If you need standardized hydraulic press equipment for lined valve assembly, please contact us for technical parameters and formal quotation within 24 hours.

Yufeng Machinery factory's DN600 Dual Station Hydraulic Butterfly Valve Test Bench features double‑station simultaneous testing, specially customized for butterfly valves and knife gate 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 DN600 Heavy Duty Hydraulic Jaw Gripper Clamping Valve Test Bench is designed for shell strength and sealing performance testing of flanged ball valves, gate valves, and other industrial valves.Hydraulic jaw gripper clamps the back of valve flange with no external force impact on the valve body.Supports high pressure water and low pressure gas as test media.