it means if you need to test valve of dn80 mm for pressure 10.0 MPa(600lbs), oil pressure should be pressurized to 11.0 MPa to reliablely and tightly clamp the test valve.
Technical performance and feature
1. Y FT series hydraulic valve test machine is suitable for the shell test, seal test and back seal test of flange end valves.
2. It adopts the sealing method of flange blind plates and uses claws to hold the flange end，so there is no external force on the tested valves, which is in accordance with the requirements of GB/T 1392-92JB/T 909-99 and API 598.
3. The right workbench can be turned over 90 degrees，for the convenience of carrying valve and observation of seal test.
4. Test medium can be chosen by user. It can be water, air or kerosene.
5. The test machine has low pressure water pump and water booster.There is an air connection reserved for air pump.
6. Water and hydraulic oil can be cycle used.
7. The test machine has an automatic oil pressure discharge system.When using it，the high pressure condition and the relief pressure condition can be changed automatically. So it can reduce oil temperature, elongate the life of valve test bench.
8. PLC control touchscreen display pressure diagram and printer system is optional.
9.Safety door is optional.
YFT - Valve Testing Machine Technical Proposal
YFT- model valve test machine is a type of highly automated valve test equipment with Mechanical, electrical, and hydraulic integration, which is composed of hydraulic workbench and operation console. Touch screen and PLC automatic control system are optional.
Hydraulic is used as driving force to drive cylinder to clamp, right workbench to turn over, left workbench to move horizontally and torque wrench to rotate. High pressure pump is generated by oil driving high pressure pump. The low pressure part of test medium(water) is generated by low pressure water pump, while the high pressure part is generated by oil driving high pump.The control of the entire system is performed by conventional, or touch screen and PLC automatic control system and electric control system.
The left and right workbenches are equipped with 3 claws which can synchronously move radially, clamp and loosen axially.The right workbench can be turned over for 90 degree, which is easy for the inspection and observation when valve seal test is performed.The left workbench can move left and right, which is suitable for the test of different valve length.
Main parameters and sizes
Schematic diagram
product details
for seal test, keep the valve fully closed. clamp the valve with the right workbench
for shell test. keep the valve half open. clamp the valve with both workbenches
product configuration
1. High pressure water pump: Air driven pump (0.6-0.8mpa air source shall be supplied by client) ;
2. Low pressure water pump
3. Electrical equipment: Schneider
4. Pressure gage (1.6 grade accuracy)
5. Hydraulic components
6. Motor: ABB.
7. Hydraulic oil pump
8. Printer (HP)
9. PLC system
10. Pneumatic valves (one-click start up)
11. The piston rod (is made of material 40Cr, and conducted with thermal refining. The hardness is HRC28～32, and the surface is chrome-plated)
12. Hydro-cylinder
13. Pneumatic needle valve
14. Booster pump
15. The material of hydraulic manifold block is cast iron, conducted acid pickling and chrome-plated ;
16. Water and gas pipes are made of stainless steel.
17. The material of the blind plate used in pressure test is Q235B steel plate ;
18. Water and gas pipeline:Seamless welded pipe
FAQ
1. Are you a manufacturer ?
Yes, our factory was founded in 1996, being one of the earliest valve test bench manufacturers in China, and we are the supplier
of many trading companies selling valve test benches in China.
2. What is your company brand?
Our brand is YONGYE, and we have only one brand for we produce only valve test benches.
3. What is your minimum order qty?
Our products are huge machines, so the MOQ is one set.
4. What is your delivery time?
Usually 6 to 8 weeks. But it’s according to the size and technical parameters of the machine. For this point, it is
negotiable.
5. What is your payment term ?
Our standard payment is 30% to 50% advance payment by T/T after order confirmation, balance payment by T/T before shipment.
6. What is your machine warranty ?
Our machines are guaranteed by 12 months after date of shipment and life-long time free technical guidance
7. Can you do OEM services ?
Yes, we can. We can use your logo, please specify when order.
8. Do you have any references in overseas?
Yes, we have. We have exported many machines to overseas markets before Covid-19. There are some well-known companies like SSS Industry in Korea and SPL Fluid etc.
Please contact us for detailed information.
9. What information should I provide if I want to customize your machine?
1st: the nominal diameter range dn= ?
2nd: the nominal pressure PN=?
3rd: type of valve connection , flange, threaded or welded?
4th: maximum pressure of the maximum valve diameter(which is very important)
e.g.dn80-300 dn300=15.0MPa/900class (for seal test of for shell test, please specify it)
5th: test items, sealing test ,shell test, or both?
6th: common type(manual control), Computer control type, or PLC control(equipped with
pneumatic valve) type?
7th: special requirements