1. Summary
The hydraulic valve test benches of model YFS-Z series are specially applied to test all kinds of flanged end valves, such as gate valves, ball valves, globe valves, check valves etc. The test benches are effectively composed of four parts, that is, mechanical system, hydraulic system, electric system and testing medium circulating system. The entire process of the loading and clamping of the valve to be tested is completely controlled by electric components and hydraulic components. The testing medium can be water, air or oil. And the maximum shell test pressure with liquid (water) is 48Mpa. Test benches of this model series are of the following features,such as rational and compact in configuration, flawless in function, steady and reliable in performance,high in degree of automation, advanced in technics and so on.
What is important, the test benches of this model series have no effect of external force upon the valve body, because the clamping jaw clamp directly on the flange of the valve. The left side of the test bench is movable, thus the testing won′t be restricted by the face-to-face length of the valve to be tested. When testing the valve, load the valve to be tested, clamp on both sides flange of the valve to be tested with enough clamping pressure, start the low pressure water pump to fill the valve to be tested with water, and start the high pressure water pump to pressurize the water inside the valve to the necessary test pressure for the valve’s shell test, and check if the valve body, valve cover and middle flange are qualified. And the other side of the bench can be reversed by 90 degrees to perform seat test with water or low pressure air (0.6-0.7MPa). The testing way and process of the test benches conform completely to the requirements of the following standards,GB/T13927-2008“ Pressure testing of general valves”JB/T9092-99“ Valve inspection and testing” and the International standards of API598, 6A, 6D etc.
Besides, the machines can specially and extra equipped with PLC controls and computerized valve pressure testing date collecting, storing, searching and time-pressure curve test report printing system as per customer’s special request if necessary. And the machines can also be equipped with electric hoist (Max. Load Weight: 500KG) for loading the small size valves to be tested as per customers’ special request if necessary, especially for customers who don’t have cranes in their workshop, or the machines are used for valve testing on the project work site.
2. Technical Parameters
Model&
Specification
Type
TestingRange
Spacing between Two Working Plates (mm)
Stroke & Lift Range of Clamping Jaw (mm)
Diameter & Quantity of Clamping Oil Cylinder
Max.Clamping Force (t)
Electromotor of Oil Pump(6 Poles)
Outline Dimensions (L×W×H)
YFS-Z100
Unitary
DN15-100
170-700
125×52
φ 80×3
30
2.2KW
1080×2300×1050
YFS-Z200
Unitary
DN50-200
250-900
156×62
φ 100×3
50
2.2KW
1240×2700×1230
YFS-Z300
Unitary
DN80-300
300-1150
200×75
φ 140×3
90
3.0KW
1360×3050×1300
YFS-Z400
Unitary
DN150-400
400-1400
200×80
φ 160×3
120
3.0KW
1580×3350×1400
YFS-Z500
Unitary
DN250-500
450-1500
225×95
φ 160×4
160
5.5KW
1620×3750×1550
YFS-Z600
Unitary
DN300-600
450-1500
250×95
φ 200×4
250
5.5KW
1700×3900×1650
YFS-Z800
Separate
DN400-800
550-1650
320×105
φ 250×4
350
5.5KW
2900×5000×1950
YFS-Z1000
Separate
DN500-1000
650-1800
350×105
φ 220×6
450
5.5KW
3100×5300×2000
3. Pressure Check List of Clamping Oil Cylinder
Model YFS-Z100
Nominal Diameter
Nominal Pressure 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
Pressure of Hydraulic Station
in
mm
PN
PS
PN
PS
PN
PS
PN
PS
PN
PS
PN
PS
PN
PS
PN
PS
PN
PS
1/2″
DN15
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
3/4″
DN20
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
1″
DN25
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
11/4″
DN32
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
11/2″
DN40
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
2 ″
DN50
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
21/2″
DN65
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
3 ″
DN80
●
●
●
●
●
●
●
●
●
●
●
●
●
●
4″
DN100
●
●
●
●
●
●
●
●
●
●
Note: PN-denotes the pressure of the oil cylinder when performing seat test;PS-denotes the pressure of the oil cylinder when performing shell test
Valve shell test pressure=Valve nominal pressure×1.5; Valve seat test pressure=Valve nominal pressure×1.1
Model YFS-Z200
Nominal Diameter
Nominal Pressure 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
Pressure of Hydraulic Station
in
mm
PN
PS
PN
PS
PN
PS
PN
PS
PN
PS
PN
PS
PN
PS
PN
PS
PN
PS
2″
DN50
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
21/2 ″
DN65
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
3″
DN80
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
4 ″
DN100
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
5″
DN125
●
●
●
●
●
●
●
●
●
●
●
●
6″
DN150
●
●
●
●
●
●
●
●
●
●
8″
DN200
●
●
●
●
●
●
●
●
Note: PN-denotes the pressure of the oil cylinder when performing seat test;PS-denotes the pressure of the oil cylinder when performing shell test
Valve shell test pressure=Valve nominal pressure×1.5; Valve seat test pressure=Valve nominal pressure×1.1
Model YFS-Z300
Nominal Diameter
Nominal Pressure MPa/class
1.6
2.5
4.0
6.4
10.0
160
20.0
250
320
150
300
400
600
900
1500
Pressure of Hydraulic Station
in
mm
PN
PS
PN
PS
PN
PS
PN
PS
PN
PS
PN
PS
PN
PS
PN
PS
PN
PS
3″
DN80
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
4″
DN100
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
5″
0N125
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
6″
DN150
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
8″
DN200
●
●
●
●
●
●
●
●
●
●
●
●
10″
DN250
●
●
●
●
●
●
●
●
●
●
12″
DN300
●
●
●
●
●
●
●
●
Note: PN-denotes the pressure of the oil cylinder when performing seat test;PS-denotes the pressure of the oil cylinder when performing shell test
Valve shell test pressure=Valve nominal pressure×1.5; Valve seat test pressure=Valve nominal pressure×1.1
Model YFS-Z400
Nominal Diameter
Nominal Pressure MPa/class
1.0
1.6
2.5
4.0
6.4
10.0
16.0
20.0
25.0
150
300
400
600
900
Pressure of Hydraulic Station
in
mm
PN
PS
PN
PS
PN
PS
PN
PS
PN
PS
PN
PS
PN
PS
PN
PS
PN
PS
6″
DN150
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
8″
DN200
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
10″
DN250
●
●
●
●
●
●
●
●
●
●
●
●
12″
DN300
●
●
●
●
●
●
●
●
●
●
●
●
14″
DN350
●
●
●
●
●
●
●
●
●
●
16″
DN400
●
●
●
●
●
●
●
●
Note: PN-denotes the pressure of the oil cylinder when performing seat test;PS-denotes the pressure of the oil cylinder when performing shell test
Valve shell test pressure=Valve nominal pressure×1.5; Valve seat test pressure=Valve nominal pressure×1.1
Model YFS-Z500
Nominal Diameter
Nominal Pressure MPa/class
1.0
1.6
2.5
4.0
6.4
10.0
16.0
20.0
25.0
150
300
400
600
900
Pressure of Hydraulic Station
in
mm
PN
PS
PN
PS
PN
PS
PN
PS
PN
PS
PN
PS
PN
PS
PN
PS
PN
PS
10″
DN250
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
12″
DN300
●
●
●
●
●
●
●
●
●
●
●
●
14″
DN350
●
●
●
●
●
●
●
●
●
●
●
●
16″
DN400
●
●
●
●
●
●
●
●
●
●
18″
DN450
●
●
●
●
●
●
●
●
20″
DN500
●
●
●
●
●
●
●
●
Note: PN-denotes the pressure of the oil cylinder when performing seat test;PS-denotes the pressure of the oil cylinder when performing shell test
Valve shell test pressure=Valve nominal pressure×1.5; Valve seat test pressure=Valve nominal pressure×1.1
Model YFS-Z600
Nominal Diameter
Nominal Pressure MPa/class
0.6
1.0
1.6
2.5
4.0
6.4
10.0
16.0
20.0
150
300
400
600
900
Pressure of Hydraulic Station
in
mm
PN
PS
PN
PS
PN
PS
PN
PS
PN
PS
PN
PS
PN
PS
PN
PS
PN
PS
12″
DN300
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
14″
DN350
●
●
●
●
●
●
●
●
●
●
●
●
●
●
16″
DN400
●
●
●
●
●
●
●
●
●
●
●
●
●
●
18″
DN450
●
●
●
●
●
●
●
●
●
●
●
●
20″
DN500
●
●
●
●
●
●
●
●
●
●
●
●
24″
DN600
●
●
●
●
●
●
●
●
●
●
Note: PN-denotes the pressure of the oil cylinder when performing seat test;PS-denotes the pressure of the oil cylinder when performing shell test
Valve shell test pressure=Valve nominal pressure×1.5; Valve seat test pressure=Valve nominal pressure×1.1
Model YFS-Z800
Nominal Diameter
Nominal Pressure MPa/class
0.6
1.0
1.6
2.5
4.0
6.4
10.0
16.0
20.0
150
300
400
600
900
Pressure of Hydraulic Station
in
mm
PN
PS
PN
PS
PN
PS
PN
PS
PN
PS
PN
PS
PN
PS
PN
PS
PN
PS
16″
DN400
●
●
●
●
●
●
●
●
●
●
●
●
●
●
18″
DN450
●
●
●
●
●
●
●
●
●
●
●
●
●
●
20″
DN500
●
●
●
●
●
●
●
●
●
●
●
●
24″
DN600
●
●
●
●
●
●
●
●
●
●
●
●
28″
DN700
●
●
●
●
●
●
●
●
●
●
32″
DN800
●
●
●
●
●
●
●
●
●
●
Note: PN-denotes the pressure of the oil cylinder when performing seat test;PS-denotes the pressure of the oil cylinder when performing shell test
Valve shell test pressure=Valve nominal pressure×1.5; Valve seat test pressure=Valve nominal pressure×1.1
Model YFS-Z1000
Nominal Diameter
Nominal Pressure MPa/class
0.3
0.6
1.0
1.6
2.5
4.0
6.4
10.0
16.0
150
300
400
600
900
Pressure of Hydraulic Station
in
mm
PN
PS
PN
PS
PN
PS
PN
PS
PN
PS
PN
PS
PN
PS
PN
PS
PN
PS
20″
DN500
●
●
●
●
●
●
●
●
●
●
●
●
●
●
24″
DN600
●
●
●
●
●
●
●
●
●
●
●
●
●
●
28″
DN700
●
●
●
●
●
●
●
●
●
●
●
●
●
●
32″
DN800
●
●
●
●
●
●
●
●
●
●
●
●
36″
DN900
●
●
●
●
●
●
●
●
●
●
●
●
40″
DN1000
●
●
●
●
●
●
●
●
●
●
Note: PN-denotes the pressure of the oil cylinder when performing seat test;PS-denotes the pressure of the oil cylinder when performing shell test
Valve shell test pressure=Valve nominal pressure×1.5; Valve seat test pressure=Valve nominal pressure×1.1
If you have any questions on valve test stand, valve pressure testing beach, pressure testing of valves, Vertical Valve Test Bench. We will give the professional answers to your questions.