Product Name: Submersible Valve Hydraulic Test Bench Model Specification JWZQ/DN80-300 Type Test Range: DN80-300 (3"-12") Test Working Pressure: Specifications (DN/mm) Test Working Pressure Range Bore (DN) Sealing Test PN (MPa/Class) Strength Test PS (MPa) DN80-300 80-100 125 150 200 250 300 1.6-32.0/1500 1.6-25.0/1500 1.6-20.0/900 1.6-15.0/900 1.6-10.0/600 1.6-6.4/400 1.6-48.0 1.6-37.5 1.6-30.0 1.6-22.5 1.6-15.0 1.6-10.0 The valve strength test (PS) is carried out according to the nominal pressure value (MPa)x1.5 times of each bore specification sealing test (PN) for the valve strength performance test. 3. Performance Working Principle This model is suitable for seal and body strength pressure performance testing of straight-through flanged gate valves, globe valves, ball valves, etc. Main function principle: The tested valve is submerged in water for visual inspection. The workbench has an up-and-down lift mechanism that uses a positioning clamp on the valve flange end face to apply pressure-sealed clamping. Steam pressure reducing valves are used, and the axial tightening and releasing as well as radial advancement and retraction of the clamping mechanisms on the left and right workbenches operate synchronously. Both left and right workbenches have a 90-degree flip function (for gas testing), and the left workbench can move horizontally to balance the length of the tested valve. Each function is driven by hydraulic transmission and electrical button control, with needle valves manually controlling the pressure holding and release. It comes equipped with electric contact pressure gauges (which automatically stop and hold pressure when the required pressure is reached during valve testing). During water or gas pressure holding processes, or under higher pressure conditions, pressing any button will not activate the system until the pressure is fully released (ensuring safety during operation). It is configured with high-pressure centrifugal pump, electric low-pressure pump. Media such as water, air, and oil can be stored and reused in a circulating system, with an inlet pipe joint provided (the customer needs to provide their own air source of 0.8-1.0 MPa). It features dual-directional pressurization and depressurization, along with pressure-holding and depressurizing devices. Pressure gauges selected are anti-vibration type, with an accuracy class of 1.6, standard MPa/Psi. The test working pressure gauge implements [three-level system], namely: high, medium, and low-pressure gauges, using: 25MPa, 10MPa, 6MPa. Random accessories: 1. Ningbo steel pipe dance, benefits of learning steel pipe dance, Ningbo belly dance training, DN80-300 flat sealing disc and O-ring seals and other wear-prone parts (1 set) 2. High-pressure sealing, user manual, factory report, and packing list, etc. Source: http://www.cntyv.com http://www.cntyv.com/Technique/QianShuiShiFaMenYeYaCeShiTaiGongZuoYuanLiJieShao/