China heavy duty gate valve lapping equipment Manufacturer, Factory, Supplier

Vertical Manual Screw Water Tank Air Tightness Test Machine is a vertical manual screw clamping valve air tightness tester with built-in water storage tank. Vertical Manual Screw Water Tank Air Tightness Test Machine adopts handwheel screw mechanism to clamp and seal valve end face. Vertical Manual Screw Water Tank Air Tightness Test Machine uses water immersion bubble method to check valve air leakage directly. Vertical Manual Screw Water Tank Air Tightness Test Machine is suitable for low pressure gas leak detection. Vertical Manual Screw Water Tank Air Tightness Test Machine has simple structure without external hydraulic power. Vertical Manual Screw Water Tank Air Tightness Test Machine is easy to operate with low cost, suitable for small valve factory, valve repair workshop and teaching test.

Developed and manufactured by Yufeng Machinery under a strict ISO9001 quality management system, the DN300 Compact Horizontal Hydraulic Top Pressure Valve Test Bench is a space-saving axial jacking hydraulic pressure testing equipment specially designed for medium- and small-sized flange valves within the DN300 caliber range.

Wenzhou Yufeng Machinery, a professional valve processing equipment manufacturer under ISO9001 quality management system, has independently developed the Four Station Vertical Valve Lapping Machine (Model YFJX-LM300) based on years of lapping equipment R&D and manufacturing experience, strictly following standardized production procedures to guarantee stable machining accuracy and long service life.

Designed for Yufeng Machinery DN400 Medium Enlarged Hydraulic Jaw Gripper Clamping Valve Test Bench. Hydraulic jaw gripper clamps flange back – no external force on valve body. Supports high‑pressure water and low‑pressure gas media. Right work table with 90° tilt for easy leak inspection.

Yufeng Machinery DN600 Intelligent Horizontal Top Pressure Testing Station is designed for shell strength and sealing performance testing of flanged and welded gate valves, globe valves, check valves, ball valves, and other industrial valves.Hydraulic cylinder top pressure system provides axial sealing with minimal external force on the valve body.

Manufactured by Yufeng Machinery, the Vertical Manual Screw Water Tank Air Tightness Test Machine is a vertical manual screw clamping type water trough air tightness valve testing equipment, designed for basic air tightness inspection of small caliber valves.