1. Uses and characteristics of digital display manhole cover pressure testing machine

1. Purpose

    The digital display manhole cover pressure tester is mainly used for the pressure test detection of various specifications and materials such as cast iron manhole covers, composite manhole covers, steel brazed concrete manhole covers, and detection of the deformation of the manhole cover during the compression process. Adding accessories can complete the compression test of other materials.

2. Features

2.1. The digital display manhole cover pressure testing machine adopts a two-column structure frame structure, and the oil cylinder is mounted on the top, which is very convenient for loading and unloading the manhole cover, and has good stability; manual oil return valve control, digital display of the peak value and deformation of the tester. There is no shock or vibration during the test, and it has good reading stability.

2.2 The machine adopts hydraulic loading, electronic force measurement, digital display of test force, test force peak value, test speed, and automatic data processing.

2.3. The hydraulic system of this machine is mainly controlled by the handle of the return oil valve, which is easy to operate and safe. The appearance of the testing machine is neat and beautiful, and the height of the control part and the indication part are appropriate, which is convenient for the tester to operate and observe.

2.4. There is a micro printer, which can print out the experimental results. Completion of the compression test of various materials and specifications of manhole covers; also can complete the compression test of other materials.

2.5. Safety protection, with functions such as automatic overload protection, over current protection, over voltage protection, overspeed protection, etc.

3. Meet the standards

3.1, GT/T2611-2007 "General Technical Requirements for Testing Machines"

3.2, JJG139-1999 " National Metrological Verification Regulations for Tension, Pressure and Universal Testing Machines "

3.3, GB/T23858-2009 "Inspection Manhole Cover"

3.4, CJ/T3012-1993 "Cast Iron Inspection Manhole Cover"

3.5, JC889-2001 "Steel Fiber Concrete Inspection Manhole Cover"

2. The main technical indicators of digital display manhole cover pressure testing machine: