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Zhejiang Youji Machinery Technology Co.,Ltd >> Product >> Valve testing equipment >> JWZQ type valve test equipment
JWZQ type valve test equipment
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1, Overview
The machine has a set of mechanical and electrical, hydraulic, pressure, liquid medium recycling in one store, with fully functional, stable performance and high degree of automation. Is widely used in the field of DN l 5-1000mm of straight-through flange and the thread connecting all kinds of high, medium and low pressure valves strength, sealing and leakage, and other performance tests. Test medium: water, gas, oil. The maximum seal test pressure 32.0MPa, intensity of 480MPa.
Machine the entire process from the hydraulic transmission, electrical control valves of the subjects were free of any additional external forces affect the test results. Greatly improve work efficiency and reduce labor intensity, is the ideal equipment for the making industry and the use, maintenance and other units in advanced testing equipment for valve testing.
2, Working principle and structure
JWZQ-based test bed to adopt a valve flange face orientation, activity against the back of the clamping claws clamping flange methods work. Valves no additional effect on the measured test results of the external forces, in line with national standards require that the valve test requirements.
The machine structure can be divided into the hydraulic system, electrical control systems, about the activities table for the clamps and hydraulic pressure devices and media, the composition of the circulatory system and other components. Table with the right institutions and the 90-degree flip clamp body by a clamping mechanism clamps the clamping device and radial composition of mobile devices, clip claws of the clamping device is used to directly drive the cylinder to achieve, so that The claw force uniform, clamping and reliable. Radial gripper’s mobile device is a lever-type structure, to achieve simultaneous radial movement of each claw. On the left table can automatically advance and retreat. And have good performance, simple structure, compact and so on. Hydraulic electric control system (see hydraulic and electrical schematics) installed at the bottom of fixation, the control section is a test station, jointly with the electrical under the control of government agencies to coordinate actions to meet the test program requirements.
3, Use and notes of the requirements
(1), equipment installation: the school placement level or your equipment fixed with concrete footing bolts.
(2), selection of N32-46 # Normal hydraulic oil, N32-46 # anti-wear hydraulic oil, or 20-30 # mechanical oil, into the fuel tank, fuel can not be less than the lower limit of the oil level gauge.
(3), connect the power, press the start button pump, check the motor rotation direction is correct (clockwise direction) to 5-1 O-minute no-load running, and adjust oil pump pressure in the 5 0MPa test-machine, all kinds of action, to check whether the pipeline leak was found negative phenomena should immediately stop excluded.
(4), Test medium: water is convenient and does not pollute the environment, etc., which are widely used, to ensure no erosion of the valves was tested and in the media, the requirements of the testing machine. In the tank, add rust inhibitor, or used for testing the oil medium.
(5), Test valve, the first valves were tested under the test pressure, insisted that "the pressure needed to compress cylinder control table" in the hydraulic clamping system pressure value, to boost pressure regulation, the value of super-boost pressure is strictly prohibited high, and prevent damage to test the valve deformation.
(6), Hydraulic pump for the pressure to work before conditioning and being a good electric contact pressure gauge pressure pilot valves the same, and then to work.
Cast iron valve not use the hammer, the valve in the experiment, the operator should pay attention to safety, proper use, with particular attention when the test medium pressure cast iron valves too damaged, valve testing is completed, the valve should be ranked after exhausting internal pressure can be relaxed axial press.
(7), Pressure gauge testing devices must be approved by the local department accreditation of its measurement certificate shall be valid, the pressure gauge of the range can not be less than the test pressure of 15 times the accuracy of not less than 1.5.
(8) Notes:
[1]. The test bed should be kept clean, clean, was test valve flange and sealing disc set does not allow any of its debris, always check the damage to O-State.
[2]. Test bed activities of the various components of Office, should always refuel and maintain clean lubrication to use.
[3], hydraulic oil should be regularly inspected, the replacement of new equipment put into use, so that both the cleaning tank 3 months, replaced with new oil, after cleaning and replacing every other year, once the oil level gauge oil can not be less than the lower limit of , the fuel tank of the oil temperature should not exceed 55 ~ C.
4, JWZQ type outsize appearance
5, Using method
First, subjects were clamping valve
Model selection by the test station is not to be large diameter test valve, adjusting the test bench to the work of the left clamping position, the valve will be on the test bench trial left a sealed tray table to the clamping center, jog "Left radial feed>" button, will be pressed to claw into the trial of the valve flange is the correct position behind the plane, according to "the left axis tight" button "the light of the required clamping cylinder pressure comparison table" in the hydraulic pressed the system "by> PN value, according to" left-pressurization> "button, adjust" booster control valve ", the" left-pressurized form "tight cylinder pressure and the Cardiff pressure required for valve control in the table Path , pressure, PN value is the same, everything is correct, close the "gas master switch, gas pressure release switch". Open "water master switch, left to the water" not only for valve sealing test were tested.
Second, water pressure, water pumps use
Electrical contact to adjust water pressure gauge, water pump switch "low-pressure pump" to open, first test the valve within the water column has been filled, low water pressure gauge for the O 5MPa in the water is full, turn off the pump switches "low-pressure pump" off. And then "high-pressure pump to open" regulator for the pump pressure regulator valve, "for the water pumps, hydraulic system pressure reducing valve J-25B> pressure test the pressure of the liquid and is sealed pressure test valves and electrical contact pressure gauge the value of the same, high-pressure water pump is automatically shut down, turn off "the total water-switch". Packing a few minutes later, no decline in water pressure tables, test seal finished, open "pressure relief switch", will be test the pressure within the pressure relief valves, "pressure of the table" to zero, can relax the valve or both were tested continued strength test.
Third, subjects were strength test fixture valve
After the valve sealing test to continue to strength testing, left to clamp the same, adjust the right-clamping device to the test bench, according to "mobile rack into the>" button, the mobile rack tray sealing one end of the main disk, and enter the subjects were touching the other side of the valve flange, refer to the left to process, the right-hand side pressed, and control "comparison table clamping cylinder pressure required to" in the hydraulic clamping system pressure "Booster> PS the same value, open "right to water" to open the valve seals were tested, the reference to "=, water pressure, water pump to use to carry out the valve strength test.
Forth, was test valve gas seal testing methods, "user-owned gas source connected" to make gas seal test, can only be left to seal the work test will be on the left of the main disk plane rotated 90 degrees upward, then "spin up>" button, Then "a" step in the degree, they will be clamping style valve is completed, close the master switch c water, pressure relief switch, right to the water,. Open c gas master switch, gas switch, to be immediately try the other side of valve, the injection of water, observe the subjects were within the valve sealing performance and bubbles. Testing finished off "gas master switch" open "pressure relief switch", barometer pressure to zero, and then test the valve was removed.
JWZ-100type clamping cylinder pressure contrast table
公称 通径 (DN) |
Nominal pressure of valve Mpa/class | ||||||||||||||||||
| 1.6 | 2.5 | 4.0 | 6.4 | 10.0 | 16.0 | 20.0 | 25.0 | 32.0 | |||||||||||
| 150 | 300 | 400 | 600 | 900 | 1500 | ||||||||||||||
| Hydraulic system pressure (Pressure increasing) Mpa | |||||||||||||||||||
| in | mm | PN | PS | PN | PS | PN | PS | PN | PS | PN | PS | PN | PS | PN | PS | PN | PS | PN | PS |
| 1/2 | 15 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 4.0 | 5.0 |
| 3/4 | 20 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 4.0 | 4.0 | 6.0 |
| 1 | 25 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 4.0 | 4.0 | 6.0 | 5.0 | 6.5 | 5.5 | 8.5 |
| 11/4 | 32 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 4.0 | 4.0 | 5.0 | 5.0 | 7.5 | 6.0 | 9.0 | 8.0 | 12.0 |
| 11/2 | 40 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 4.0 | 4.0 | 5.5 | 5.5 | 8.0 | 7.0 | 10.5 | 8.5 | 13.0 | 11.0 | 16.5 |
| 2 | 50 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 4.0 | 5.0 | 5.0 | 7.5 | 7.5 | 11.0 | 9.5 | 14.5 | 12.0 | 18.0 | 15.0 | 22.5 |
| 21/2 | 65 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 4.0 | 4.0 | 6.0 | 6.0 | 9.0 | 10.0 | 15.0 | 12.0 | 18.0 | 15.0 | 22.5 | 17.0 | 25.5 |
| 3 | 80 | 3.0 | 3.0 | 3.0 | 4.0 | 4.0 | 6.0 | 6.0 | 9.0 | 10.0 | 15.0 | 15.0 | 22.5 | 19.0 | 27.5 | ||||
| 4 | 100 | 3.0 | 4.0 | 4.0 | 6.0 | 6.0 | 9.0 | 9.0 | 13.5 | 14.0 | 21.0 | ||||||||
| Note:1.When test the valve,PN(Airproof test),PS(Valve intension test). 2. When the valve less thanDN32-4.0Mpa，adjust then hydraulic system pressure to lower than 3.0Mpa,the cylinder can work. | |||||||||||||||||||
JWZ-200type clamping cylinder pressure contrast table
公称 通径(DN) |
Nominal pressure of valve Mpa/class | ||||||||||||||||||
| 1.6 | 2.5 | 4.0 | 6.4 | 10.0 | 16.0 | 20.0 | 25.0 | 32.0 | |||||||||||
| 150 | 300 | 400 | 600 | 900 | 1500 | ||||||||||||||
| Hydraulic system pressure (Pressure increasing) Mpa | |||||||||||||||||||
| in | mm | PN | PS | PN | PS | PN | PS | PN | PS | PN | PS | PN | PS | PN | PS | PN | PS | PN | PS |
| 2 | 50 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 4.0 | 4.0 | 5.0 | 5.5 | 8.0 | 7.0 | 10.5 | 9.0 | 13.5 |
| 21/2 | 65 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 4.0 | 4.0 | 5.5 | 6.0 | 9.0 | 7.5 | 11.0 | 9.0 | 13.5 | 12.0 | 18.0 |
| 3 | 80 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 4.0 | 4.0 | 6.0 | 6.0 | 8.5 | 9.0 | 13.5 | 12.0 | 18.0 | 15.0 | 21.0 | 18.0 | 27.0 |
| 4 | 100 | 3.0 | 3.0 | 3.0 | 4.0 | 4.0 | 5.0 | 5.5 | 8.0 | 8.5 | 13.0 | 14.0 | 21.0 | 17.0 | 25.5 | ||||
| 5 | 125 | 3.0 | 4.0 | 4.0 | 5.0 | 5.5 | 8.0 | 8.5 | 13.0 | 14.0 | 21.0 | ||||||||
| 6 | 150 | 4.0 | 5.0 | 5.0 | 6.5 | 7.0 | 10.5 | 11.0 | 16.5 | ||||||||||
| 8 | 200 | 5.0 | 6.5 | 7.0 | 10.5 | 11.0 | 17.0 | 18.0 | 27.0 | ||||||||||
JWZ-300type clamping cylinder pressure contrast table
公称 通径(DN) |
Nominal pressure of valve Mpa/class | ||||||||||||||||||
| 1.6 | 2.5 | 4.0 | 6.4 | 10.0 | 16.0 | 20.0 | 25.0 | 32.0 | |||||||||||
| 150 | 300 | 400 | 600 | 900 | 1500 | ||||||||||||||
| Hydraulic system pressure (Pressure increasing) Mpa | |||||||||||||||||||
| in | mm | PN | PS | PN | PS | PN | PS | PN | PS | PN | PS | PN | PS | PN | PS | PN | PS | PN | PS |
| 3 | 80 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 4.0 | 4.0 | 6.0 | 5.0 | 7.5 | 6.0 | 9.0 | 8.0 | 12.0 |
| 4 | 100 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 4.0 | 4.0 | 6.0 | 6.0 | 9.0 | 7.0 | 11.0 | 9.0 | 13.5 | 12.0 | 18.0 |
| 5 | 125 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 4.0 | 4.0 | 6.0 | 6.0 | 9.0 | 9.0 | 13.5 | 11.0 | 16.5 | 14.0 | 21.0 | ||
| 6 | 150 | 3.0 | 3.0 | 3.0 | 3.0 | 4.0 | 5.0 | 5.0 | 7.5 | 7.5 | 11.0 | 12.0 | 18.0 | 15.0 | 22.5 | ||||
| 8 | 200 | 3.0 | 3.0 | 3.0 | 4.0 | 4.5 | 7.0 | 8.0 | 12.0 | 12.0 | 18.0 | 19.5 | 30.0 | ||||||
| 10 | 250 | 3.0 | 5.0 | 5.0 | 7.0 | 7.5 | 11.0 | 12.0 | 18.0 | 18.0 | 27.0 | ||||||||
| 12 | 300 | 4.0 | 6.0 | 6.5 | 10.0 | 10.5 | 16.0 | 17.0 | 25.5 | ||||||||||
| Note:1.When test the valve.PN(Airproof test).PS(valve intension test). 2.When the valve less than DN125-2.5Mpa.adjust the hydraulic system pressure to lower than 3.0Mpa.the cyinder can work. |
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JWZ-400type clamping cylinder pressure contrast table
公称通径(DN) |
Nominal pressure of valve Mpa/class | ||||||||||||||
| 1.6 | 2.5 | 4.0 | 6.4 | 10.0 | 16.0 | 20.0 | |||||||||
| 150 | 300 | 400 | 600 | 900 | |||||||||||
| Hydraulic system pressure (Pressure increasing) Mpa | |||||||||||||||
| in | mm | PN | PS | PN | PS | PN | PS | PN | PS | PN | PS | PN | PS | PN | PS |
| 8 | 200 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 4.5 | 5.0 | 7.5 | 7.0 | 7.0 | 11.0 | 16.5 | 14.0 | 22.0 |
| 10 | 250 | 3.0 | 3.0 | 3.0 | 4.5 | 4.5 | 6.5 | 7.0 | 10.5 | 11.0 | 16.0 | 17.0 | 25.5 | ||
| 12 | 300 | 3.0 | 3.0 | 4.0 | 6.0 | 6.0 | 9.0 | 9.5 | 14.5 | 15.0 | 22.0 | ||||
| 14 | 350 | 3.5 | 5.0 | 5.0 | 7.5 | 8.0 | 12.0 | 13.0 | 19.5 | ||||||
| 16 | 400 | 4.0 | 6.0 | 6.5 | 10.0 | 10.5 | 16.0 | 16.0 | 24.0 | ||||||
| Note:1.When test the valve.PN(Airproof test).PS(valve intension test). 2.When the valve less than 1.6Mpa.adjust the hydraulic system pressure to lower than 3.0Mpa.the cyinder can work. |
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JWZ-500type clamping cylinder pressure contrast table
公称通径 (DN) |
Nominal pressure of valve Mpa/class | ||||||||||||||
| 1.0 | 1.6 | 2.5 | 4.0 | 6.4 | 10.0 | 16.0 | |||||||||
| 150 | 400 | 600 | 900 | ||||||||||||
| Hydraulic system pressure (Pressure increasing) Mpa | |||||||||||||||
| in | mm | PN | PS | PN | PS | PN | PS | PN | PS | PN | PS | PN | PS | PN | PS |
| 10 | 250 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 4.0 | 5.0 | 7.5 | 8.0 | 12.0 | 12.0 | 18.0 | 18.0 | 27.0 |
| 12 | 300 | 3.0 | 3.0 | 3.0 | 4.0 | 4.0 | 6.0 | 6.5 | 10.0 | 10.0 | 15.0 | 16.0 | 24.0 | ||
| 14 | 350 | 3.0 | 3.0 | 4.0 | 5.0 | 5.5 | 8.5 | 9.0 | 13.5 | 14.0 | 21.0 | ||||
| 16 | 400 | 3.0 | 4.0 | 5.0 | 6.5 | 7.0 | 10.5 | 11.0 | 16.5 | 17.0 | 25.5 | ||||
| 18 | 450 | 4.0 | 5.0 | 5.5 | 8.5 | 9.0 | 13.5 | 14.0 | 21.0 | ||||||
| 20 | 500 | 4.0 | 6.0 | 7.0 | 10.5 | 11.0 | 16.5 | 17.0 | 25.5 | ||||||
| Note:1.When test the valve.PN(Airproof test).PS(valve intension test). 2.When the valve less than DN300-1.6Mpa.adjust the hydraulic system pressure to lower than 3.0Mpa.the cyinder can work. |
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JWZ-600type clamping cylinder pressure contrast table
公称通径(DN) |
Nominal pressure of valve Mpa/class | ||||||||||||||
| 1.0 | 1.6 | 2.5 | 4.0 | 6.4 | 10.0 | 16.0 | |||||||||
| 150 | 400 | 600 | 900 | ||||||||||||
| Hydraulic system pressure (Pressure increasing) Mpa | |||||||||||||||
| in | mm | PN | PS | PN | PS | PN | PS | PN | PS | PN | PS | PN | PS | PN | PS |
| 12 | 300 | 3.0 | 3.0 | 3.0 | 3.0 | 4.0 | 6.0 | 6.0 | 9.0 | 9.0 | 12.0 | 13.0 | 20.0 | 21.0 | 31.5 |
| 14 | 350 | 3.0 | 3.0 | 3.0 | 3.0 | 5.0 | 7.0 | 7.0 | 10.0 | 12.0 | 18.0 | 18.0 | 27.0 | ||
| 16 | 400 | 3.0 | 4.0 | 4.0 | 6.0 | 6.5 | 10.0 | 11.0 | 16.0 | 17.0 | 25.0 | ||||
| 20 | 500 | 4.0 | 8.0 | 7.0 | 10.0 | 10.0 | 15.0 | 16.0 | 24.0 | ||||||
| 24 | 600 | 6.0 | 9.0 | 8.5 | 14.0 | 15.0 | 22.0 | ||||||||
| Note:1.When test the valve.PN(Airproof test).PS(valve intension test). 2.When the valve less than DN300-1.6Mpa.adjust the hydraulic system pressure to lower than 3.0Mpa.the cyinder can work.。 |
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JWZ-700type clamping cylinder pressure contrast table
公称通径(DN) |
Nominal pressure of valve Mpa/class | ||||||||||||
| 1.0 | 1.6 | 2.5 | 4.0 | 6.4 | 10.0 | ||||||||
| 150 | 400 | 600 | |||||||||||
| Hydraulic system pressure (Pressure increasing) Mpa | |||||||||||||
| in | mm | PN | PS | PN | PS | PN | PS | PN | PS | PN | PS | PN | PS |
| 16 | 400 | 3.0 | 3.0 | 3.0 | 4.0 | 4.0 | 5.0 | 5.5 | 8.0 | 9.0 | 13.5 | 14.0 | 21.0 |
| 18 | 450 | 3.0 | 3.0 | 4.0 | 5.0 | 5.0 | 7.0 | 7.0 | 10.5 | 11.5 | 17.5 | 18.0 | 27.0 |
| 20 | 500 | 3.0 | 4.0 | 4.0 | 5.0 | 5.5 | 8.0 | 8.5 | 13.0 | 14.0 | 21.0 | ||
| 24 | 600 | 4.0 | 5.0 | 5.0 | 7.5 | 7.5 | 11.0 | 12.0 | 18.0 | 19.5 | 29.0 | ||
| 28 | 700 | 4.0 | 6.0 | 6.5 | 10.0 | 10.0 | 15.0 | 16.5 | 25.0 | ||||
| 32 | 800 | 5.5 | 8.0 | 8.5 | 12.5 | 13.0 | 19.5 | ||||||
| Note:1.When test the valve.PN(Airproof test).PS(valve intension test). 2.When the valve less than DN300-1.6Mpa.adjust the hydraulic system pressure to lower than 3.0Mpa.the cyinder can work.。 |
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JWZ-1000type clamping cylinder pressure contrast table
公称通径(DN) |
Nominal pressure of valve Mpa/class | ||||||||||||
| 1.0 | 1.6 | 2.5 | 4.0 | 6.4 | 10.0 | ||||||||
| 150 | 400 | 600 | |||||||||||
| Hydraulic system pressure (Pressure increasing) Mpa | |||||||||||||
| in | mm | PN | PS | PN | PS | PN | PS | PN | PS | PN | PS | PN | PS |
| 20 | 500 | 3.0 | 3.0 | 3.0 | 4.0 | 4.0 | 5.0 | 5.0 | 7.5 | 8.5 | 12.0 | 13.0 | 19.5 |
| 24 | 600 | 3.0 | 4.0 | 4.0 | 5.0 | 5.0 | 7.0 | 7.5 | 11.0 | 12.0 | 18.0 | 19.5 | 29.0 |
| 28 | 700 | 3.0 | 4.0 | 4.0 | 5.5 | 6.0 | 9.5 | 10.0 | 15.0 | 15.5 | 23.0 | ||
| 32 | 800 | 4.0 | 5.0 | 5.0 | 7.5 | 8.0 | 12.0 | 12.5 | 19.5 | 20.5 | 31.0 | ||
| 36 | 900 | 4.0 | 6.0 | 6.5 | 10.0 | 10.5 | 15.5 | 16.0 | 24.0 | ||||
| 40 | 1000 | 5.0 | 7.5 | 8.0 | 12.0 | 12.5 | 19.0 | 19.5 | 29.0 | ||||
| Note:1.When test the valve.PN(Airproof test).PS(valve intension test). 2.When the valve less than DN500-1.6Mpa.adjust the hydraulic system pressure to lower than 3.0Mpa.the cyinder can work. |
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