A computerized Metallurgical Microscope or a digital metallurgical microscope is a high-tech product developed by combining optical microscope technology, photoelectric conversion technology, and computer image processing technology together. Metallographic images can be easily observed on a computer. , to analyze the metallographic map, rating, etc., and output and print the pictures.
Metallography mainly refers to the use of optical (metallurgical) microscopes and stereomicroscopes to analyze the material microstructures, low-magnification tissues, and fractures, etc. The branch of material disciplines contains both the microstructure and imaging properties of materials. Quantitative characterization also includes the necessary sample preparation, preparation, and sampling methods. It mainly reflects and characterizes the number, morphology, size and distribution of the phases and the tissue constituents constituting the material, the crystal grains (including possible subgrains), non-metallic inclusions and even certain crystal defects (such as dislocations). Orientation, spatial arrangement, etc. Metallographic Microscope,Metallurgical Microscope,High Resolution Metallographic Microscope,Non-Contact Metallographic Microscope Dongguan Jaten Instrument Co.,LTD(HK TT:Jaten Technology Co.,Ltd ​) , http://www.jatentech.com
Introduction
The pressure-reducing valve is adjusted to reduce the inlet pressure to a desired outlet pressure and rely on the energy of the medium itself to keep the outlet pressure automatically stable. From fluid mechanics point of view, pressure reducing valve is a throttling element, local resistance to change that by changing the throttling area, change the kinetic energy of the flow velocity and fluid, different pressure loss, so as to achieve the goal of decompression. Then the control and adjustment system can be adjusted to balance the pressure fluctuation of the valve and the spring force, so that the pressure of the valve remains constant within a certain margin of error. It is widely used in high rise buildings, water pressure of the city water supply pipe, and other occasions, so as to ensure the proper service water pressure and flow of water points in the water supply system.
Specification
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No..
Part
Material
1
Body
Cast Iron (GG25, HT200) / Ductile Iron (GG40, QT)
2
Seat
410 S.S. / SS 304 / SS 316
3
Stem
410 S.S. / SS 304 / SS 316
4
O-ring washer
Cast Iron
5
O-ring
NBR
6
O-ring
NBR
7
Disc
Cast Iron (GG25, HT200) / Ductile Iron (GG40, QT)
8
Diaphragm
Rubber
9
Diaphragm Washer
Cast Iron
10
Screw
Bronze
11
Spring
Spring steel
12
Cover
Cast Iron (GG25, HT200) / Ductile Iron (GG40, QT)
13
Ball Valve
Bronze
14
Ball valve
Bronze
15
Pressure show
Â
16
Pilot valve
Bronze
17
Hang ring
Steel
18
Pilot socket
Bronze
19
Needle valve
Bronze
20
Ball valve
Bronze
21
Pressure show
Â
22
Stud
Steel
23
Screw
Steel
DN(mm)
50
65
80
100
125
150
200
250
300
350
400
450
500
600
L
203
235
285
360
400
455
585
650
800
860
915
980
1075
1230
PN10
D
160
180
195
215
245
280
335
390
440
500
565
615
670
780
D1
125
145
160
180
210
240
295
350
400
460
515
565
620
725
PN16
D
160
180
195
215
245
280
335
405
460
520
580
640
705
840
D1
125
145
160
180
210
240
295
355
410
470
525
585
650
770
PN25
D
160
180
195
230
270
300
360
425
485
550
610
660
730
840
D1
125
145
160
190
220
250
310
370
430
490
550
600
660
770
H
395
405
430
510
560
585
675
730
760
840
910
1030
1135
1270
Photoes
Other Fire fighting Equipment
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Hydraulic Control Valve- Pressure Reducing Valve- Pressure Control Valve
Introduction
The pressure-reducing valve is adjusted to reduce the inlet pressure to a desired outlet pressure and rely on the energy of the medium itself to keep the outlet pressure automatically stable. From fluid mechanics point of view, pressure reducing valve is a throttling element, local resistance to change that by changing the throttling area, change the kinetic energy of the flow velocity and fluid, different pressure loss, so as to achieve the goal of decompression. Then the control and adjustment system can be adjusted to balance the pressure fluctuation of the valve and the spring force, so that the pressure of the valve remains constant within a certain margin of error. It is widely used in high rise buildings, water pressure of the city water supply pipe, and other occasions, so as to ensure the proper service water pressure and flow of water points in the water supply system.
Specification
 Â
No..
Part
Material
1
Body
Cast Iron (GG25, HT200) / Ductile Iron (GG40, QT)
2
Seat
410 S.S. / SS 304 / SS 316
3
Stem
410 S.S. / SS 304 / SS 316
4
O-ring washer
Cast Iron
5
O-ring
NBR
6
O-ring
NBR
7
Disc
Cast Iron (GG25, HT200) / Ductile Iron (GG40, QT)
8
Diaphragm
Rubber
9
Diaphragm Washer
Cast Iron
10
Screw
Bronze
11
Spring
Spring steel
12
Cover
Cast Iron (GG25, HT200) / Ductile Iron (GG40, QT)
13
Ball Valve
Bronze
14
Ball valve
Bronze
15
Pressure show
Â
16
Pilot valve
Bronze
17
Hang ring
Steel
18
Pilot socket
Bronze
19
Needle valve
Bronze
20
Ball valve
Bronze
21
Pressure show
Â
22
Stud
Steel
23
Screw
Steel
DN(mm)
50
65
80
100
125
150
200
250
300
350
400
450
500
600
L
203
235
285
360
400
455
585
650
800
860
915
980
1075
1230
PN10
D
160
180
195
215
245
280
335
390
440
500
565
615
670
780
D1
125
145
160
Features:
1. Adopt the world's best infinity dual color correction and contrast enhanced (ICCS) optical system to provide users with the sharpest images.
2. Using 5 kinds of upper parts and 3 kinds of lower parts and two column combination methods, you can make any flexible combination according to your requirements for material testing and economic cost, and can realize the analysis of transparent materials, opaque materials and fluorescent materials. At the same time, it has a powerful upgrade space to ensure your future testing requirements.
3. The industry's largest model height can reach 380mm, providing you with extraordinary operating space.
4. Close to the user's flexibility, the upgrade of the components of the device does not require professionals, users can complete their own operation.
Model NO.: 200X
Material: Cast Iron/Ductile Iron/Stainless Steel
Coating: Epoxy Resin Coated to 300 Microns Inside & Outside
Trademark: Blank
Transport Package: Wooden Case
Specification: DN50-DN600
Origin: Fujian
HS Code: 8481804090
Model NO.: 200X
Material: Cast Iron/Ductile Iron/Stainless Steel
Coating: Epoxy Resin Coated to 300 Microns Inside & Outside
Trademark: Blank
Transport Package: Wooden Case
Specification: DN50-DN600
Origin: Fujian
HS Code: 8481804090
Hydraulic Control Valve- Pressure Reducing Valve- Pressure Control ValveÂ
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