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Valve Repair & test
Ventile Prevent Test LTC
  • 1kN, 10kN, 20kN and testing bridge
  • safety valve on-line test system

Characteristic

  • IN-SITU TESTING
  • Set Pressure & Reseat Pressure Check & Adjustments
  • Inspector can check instantly via Set Pressure & Closing pressure graphs
  • It consists the test bracket, an information processing function of hard & set accuracy to within ±0.1%
  • Easily applied to any valve sizes and connection must be installed quickly
  • Maximize reliability with the introduction of the industry’s first digital equipment

Merit

  • The actual execution of the operation continues at state
  • There is no need to stop the process conditions for the test
  • It does not have to disassemble the valve for the test
  • There is no loss of Profits and Productivity

01

  • Dating can be checked during the test
  • Settled pressure of valve
  • Spring adjustable in accordance with a settled pressure
  • Verifying valve’s displacement status
  • Pressure control
  • Adjust the nozzle and guide ring

02

What’s Safety Valve In-situ Testing?

  • The safety valves in Power plants, Petrochemical plants can take a Pressure test in operation or stop condition and take a measuring and adjusting of a set pressure and reseat pressure.
  • We have the Ventil Preven Test LTC from Ventil Test Equipment B.V in the Netherlands who is very famous manufacturer of valve testing equipment.
  • In-situ Testing
  • 01F Pull : Pulling force generated by the PreVen Test system.
  • 02F Process : Force, resulting from system pressure.
  • 03F Spring : Pre-tension force generated by spring.

Ventil Preven Test LTC

  • Hidro Device, hardward and load cell consists of software and a laptop to record the levels managed.
  • The value of Seat Diameter of safety valve enter into the laptop and install the Hydro device in the upper part
  • Data obtained through the Hydro ram is converted into an electrical signal through the load cell, Seat Diameter is completely calculated from the data of the current operating pressure inputted in advance, and then is output to the print processing in the graph.

Configuration results in three data

  • Without derived by calculating an existing analog graph in Set Pressure & Reseat Pressure, Automatically calculates the value of the load cell via a digital program, the current pressure must
  • 01Load Cell Graph(Set Pressure & Reseat Pressure)
  • 02Sound Graph(popping point)
  • 03Spring displacement Graph (open and closed)

Preven test digital inspection report graph

  • found set pressure 75.6kg/cm²
  • reseat pressure 74.07kg/cm²
  • pulling force 6034.07N
  • line pressure 60.10kg/cm²

The main features of In-situ Testing

  • Hot Test
  • Ventil Preven Test LTC is designed to test the safety valve in normal operating conditions
  • Legal inspection, as well as, to determine the state of the pressure relief valve there is a problem in the process and adjustment
  • The output information of the test report can be verified at any time that the valve is permanently preserved in the laptop program
  • Cold Test
  • Ventil Prevent Test of the LTC program is not necessary to stop the process and the valve take off
  • Test, regardless of the process pressure, dramatically reducing the cost and time for take off & set up

Advantages of the In-situ Testing

  • There is no need to stop the process in order to test the safety valves.
  • Simply, remove the valve, no degradation can be achieved by a cost reduction.
  • There is a problem with the valve can be checked through the pre-screening operations before the Shut-Down.
  • The main advantage of the In-situ Testing is, the time and cost that would dramatically improve.

The final result of In-situ Testing and result

  • 01Valve set ting pressure
  • 02Adjustment and setting of the displaced spring
  • 03The displacement of the valve
  • 04Reseat input
  • 05Adjustment and confirmation of the nozzle ring and the guide ring
5-39, Sangnam-gil, Cheongnyang-myeon, Ulju-gun, Ulsan, Korea
TEL : 052-287-6268
Fax : 052-287-6269
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