High Pressure Flanged Gate Valve

Short Description:

Product Usage
Z541W High-pressure Power Station Gate Valve produced by Kaibo Valve Group Co., Ltd. Manual, butt welding connection type, single lever wedge rigid single-disc, the seat sealing surface material is cemented carbide, nominal pressure PN250 ~ PN320, valve body material is carbon steel high temperature and high pressure power station gate valve.

 

Structural Features
High temperature gate valve, also known as power station valve, is mainly used in the pipelines of various systems of thermal power stations to cut off or connect the pipeline medium. Applicable medium: non-corrosive medium such as water and steam. Compared with other valve products, power station valves are characterized by high temperature and high pressure, and a unique self-sealing design. The higher the pressure, the more reliable sealing. Due to the performance and technical characteristics, the special working conditions make the product form a feature that can not be replaced by other products.
1. No friction when opening and closing. This function completely solves the problem that the traditional valve affects the sealing surface due to the friction between the sealing surfaces.
2. Top-mounted structure. The valve installed on the pipeline can be directly inspected and repaired online, which can effectively reduce the stopping of the device and reduce the cost.
3. Single seat valve design. Eliminating the problem that the medium in the valve cavity is affected by the abnormal pressure increase and affects the safety of use.
4. Low torque design. The valve stem with special structure design can be easily opened and closed with only a small handle.
5. Wedge seal structure. The valves is sealed by the mechanical force provided by the valve stem, pressing the wedge against the valve seat, so that the valve’s tightness is not affected by the change in pipeline pressure difference, and the sealing performance is reliably guaranteed under various working conditions.
6. Self-cleaning structure of the sealing surface. When the gate is tilted away from the valve seat, the fluid in the pipeline passes through 360 degrees uniformly along the sealing surface of the gate, which not only eliminates the local erosion of the valve seat by the high-speed fluid, but also rushes away the accumulation on the sealing surface to achieve the purpose of self-cleaning.


Product Detail

Product Tags

Administer Standard

Design and Manufacture Face To Face Flange Dimension Pressure   Temperature Lating spection And Test
GB122234 GB12221 GB9113 JB79 GB9131 GB/T13927 JB/T9092

 

 

Form of major parts materials And Pressure Test

Body Cover Disc Stem Sealing Face Sealing Shim Packing Working Temperature Suitable Medium
WCB 2Cr13 13Cr
STL
With Body
Material
Nylon
Enhanced Flexible Graphite
1Cr13/Flexible Graphite

08 Soft Steal
0Cr18Ni9Ti
0Cr17Ni12Mo2Ti
XD550F(T)
PTFE

Flexible Graphite
Enhanced Flexible Graphite
SFB/260
SFP/260
PTFE
≤425 Water
Steam
Oil Goods
WC1 38CrMoAl
25Cr2MoV
≤450
WC6 ≤540
WC9 ≤570
C5 C12 ≤540
ZGCr5Mo ≤200 Nitric acid
ZG1Cr18Ni9Ti 1Cr18Ni9Ti
ZG1Cr18Ni12Mo2Ti 1Cr18Ni12Mo2Ti Acetic acid
Nominal Pressure 1.6 2.5 4.0 6.4 10.0 16.0
Shell Test 2.4 3.8 6.0 9.6 15.0 24.0
 Water Seal Test 1.8 2.8 4.4 7.0 11.0 18.0
Backseat Test 1.8 2.8 4.4 7.0 11.0 18.0
Air Seal Test 0.4-0.7

 

 

Dimensions of Flanged end

1.6MPa size DN 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350 400 450 500 600
L mm 130 150 160 180 200 250 265 280 300 325 350 400 450 500 550 600 650 700 800
H mm 175 180 210 210 350 358 373 435 500 614 674 818 1225 1415 1630 1780 2050 2181 2599
W mm 180 180 200 200 200 240 240 280 320 360 360 400 450 500 500 600 720 720 720
2.5MPa size DN 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350 400 450 500 600
L mm 130 150 160 180 200 250 265 280 300 325 350 400 450 500 550 600 650 700 800
H mm 175 180 210 210 350 358 373 435 500 614 674 818 1225 1415 1630 1780 2050 2181 2599
W mm 180 180 200 200 200 240 240 280 320 360 360 400 450 500 500 600 720 720 720
4.0MPa size DN 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350 400      
L mm 130 150 160 180 200 250 280 310 350 400 450 550 650 750 850 950      
H mm 175 180 210 210 350 358 373 435 500 614 674 818 1225 1415 1630 1780      
W mm 180 180 200 200 200 240 240 280 320 360 360 400 450 500 500 600      
6.4MPa size DN 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350 400      
L mm 170 190 210 230 240 250 280 320 350 400 450 550 650 750 850 950      
H mm 175 180 210 230 350 359 373 435 500 614 674 818 970 1145 1280 1450      
W mm 120 120 140 160 200 240 280 320 360 400 400 450 560 640 800 800      
10.0MPa size DN 15 20 25 32 40 50 65 80 100 125 150 200 250            
L mm 170 190 210 230 240 250 280 310 350 400 450 550 650            
H mm 175 180 210 230 350 359 373 435 500 614 674 818 970            
W mm 120 120 160 180 240 280 320 360 400 450 560 640 720            
16.0MPa size DN 15 20 25 32 40 50 65 80 100 125 150 200              
L mm 170 190 210 230 240 300 340 390 450 525 600 750              
H mm 175 180 210 230 350 359 373 435 500 614 674 818              
W mm 120 120 140 160 200 240 280 320 360 400 400 450              

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