Author name: YOUJI

New Product Introduction: JLX Plug Valve Grinding Machine The JLX plug valve grinding machine is a new generation of valve grinding equipment developed by Zhejiang Youji Machinery Technology Co., Ltd. The company owns independent intellectual property rights and an invention patent ZL202110071861.9. It is a specialized device for grinding the sealing surface of hard-seal plug […]

I. Core Classifications and Functions of Safety Testing Benches 1. Structural Safety Testing Benches Types | Functional Characteristics | Test Object Examples Static Load Testing Bench | Simulates long-term static pressure, detects deformation/fracture limits Building components, bridge bearings Fatigue Testing Bench | High-frequency cyclic loading, evaluates material fatigue life (up to tens of millions of

I. General Safety Specifications RISK TYPE PROTECTIVE MEASURES High-pressure fluid injection ✅ Verify all pressure-bearing components (flanges/joints) have pressure ratings ≥ 1.5 times test pressure before testing<br>✅ Install explosion-resistant transparent barriers (≥8mm polycarbonate) Mechanical pinching ✅ Equip moving parts (hydraulic cylinders/fixtures) with light curtains; implement Lockout-Tagout (LOTO) during maintenance Electrical shock ✅ Grounding resistance ≤

Butterfly Valve Pressure Testing Machine Technical Overview（Butterfly Valve Test Bench Technology Overview） Model: JLD Series (Flanged/Wafer Type Butterfly Valve Dedicated) Functional Positioning: A fully automatic sealing and strength testing platform specifically designed for butterfly valves, covering factory testing, type testing, and re-inspection needs for butterfly valves from low to medium-high pressure (PN10~PN40). Supports soft-seal/metal-seal butterfly

Check Valve Test Bench Technical Specification(Check Valve Test Equipment) Compliant with API, ISO, ASME & EN Standards I. Core Functions Sealing Performance Testing Reverse Sealing (Critical) : Apply reverse pressure (≥1.1x design pressure) to measure backflow leakage. Forward Flow Verification : Validate flow resistance at full-open position (per API 6D/ISO 5208). Shell Strength Test 1.5x

API 598: Detailed Explanation of the Valve Inspection and Testing Standard API 598 is a valve inspection and pressure testing standard developed by the American Petroleum Institute (API) and applies to industrial valves (such as gate valves, globe valves, ball valves, and check valves). Its core purpose is to verify valve integrity and leak tightness

Understanding Valve Test Benches (What is a valve test bench?) A valve test bench is a specialized device used to test and inspect valve performance. It is an essential component of mechanical equipment, primarily used to verify valve safety, reliability, and durability. 1. What is a valve test bench? A valve test bench simulates actual

Zhejiang Youji Machinery Technology Co., Ltd. (referred to as “Zhejiang Youji”) has achieved a significant market breakthrough as its newly developed Next Generation Flexible Conical Hard Sealing Grinder has officially entered the European market and secured multiple orders from PICO Group’s Croatia branch, a renowned European flow control company. As a leading enterprise in China’s