Special stop valve for oxygen

Short Description:

The special stop valve for oxygen is made of silicon brass or stainless steel, which has the advantages of high mechanical strength, wear resistance and good safety. It is suitable for oxygen pipeline. It has good explosion-proof and flame retardant performance, eliminating the unsafe factors on oxygen pipeline.


Product Detail

Product Tags

Product features of oxygen special stop valve

 

This product not only has the function of common valve, but also has its own characteristics. Strict oil prohibition measures are adopted during manufacturing, and all parts are strictly degreased before installation. The flange ends of all sizes of valves are provided with conductive screw holes to prevent static electricity. The exposed parts of the valve shall be protected from dust and oil pollution. The materials used in this kind of products are divided into two categories: one is cast silicon brass used for valve body, bonnet and disc; the other is high-quality stainless steel used for valve body, bonnet and disc.

 

Executive standard

 

Product specification design code Structural length Connecting flange Test and inspection
GB/T 12235 GB/T 12221 JB/T 79、GB/T9113、HG/T20592、EN1092-1/2、ASME B16.5/B16.47 JB/T 9092GB/T13927、API598

 

Main performance specification of oxygen special stop valve

Nominal diameter(DN) 15-400
Nominal pressure(MPa) 1.6 2.5 4.0
Test pressure(MPa) strength 2.4 3.75 6.0
seal up 1.76 2.75 4.4
Applicable temperature ≤200℃
Applicable medium 氧气

Material of main parts

Part name Material of parts
Body / bonnet Stainless steel, brass
Stem Stainless steel, brass
Valve disc 25#sealing surface nylon
Stem nut bronze
filler

Forming of reinforced polytetrafluoroethylene

shim XB450
handwheel Ductile iron

 

Drawing of oxygen special stop valve

 

氧气专用截止阀图纸

 

Main connecting dimensions of PN2.5MPa oxygen special stop valve

 

DN(mm) L D D1 D2 b Z-Φd D0 H H1 L1
JY41W-25P/PL   JY41W-25T
15 130 95 65 45 16 4-Φ14 100 190 - -
20 150 105 75 55 16 4-Φ14 100 213 - -
25 160 115 85 65 16 4-Φ14 125 236 - -
32 180 135 100 78 18 4-Φ18 180 312 - -
40 200 145 110 85 18 4-Φ18 160 328 - -
50 230 160 125 100 20 4-Φ18 320 450 - -
65 290 180 145 120 22 8-Φ18 360 530 - -
80 310 195 160 135 22 8-Φ18 400 560 - -
100 350 230 190 160 24 8-Φ23 450 618 - -
125 400 270 220 188 28 8-Φ25 450 675 - -
150 480 300 250 218 300 8-Φ25 560 743 - -
200 600 360 310 278 34 12-Φ25 640 850 - -
250 650 425 370 332 36 12-Φ30 720 975 340 380
300 750 485 430 390 40 16-Φ30 800 1115 340 415
400 950 610 550 505 48 16-Φ34 900 1380 340 465

 

Main connecting dimensions of PN4.0MPa oxygen special stop valve

 

DN(mm) L D D1 D2 b Z-Φd D0 H H1 L1
JY41W-40P/PL JY41W-40T
15 130 95 65 45 40 4-Φ14 100 202 - -
20 150 105 75 55 51 4-Φ14 100 225 - -
25 160 115 85 65 58 4-Φ14 125 236 - -
32 180 135 100 78 66 4-Φ18 180 312 - -
40 200 145 110 85 76 4-Φ18 160 328 - -
50 230 160 125 100 88 4-Φ18 320 450 - -
65 290 180 145 120 110 8-Φ18 360 530 - -
80 310 195 160 135 121 8-Φ18 400 560 - -
100 350 230 190 160 150 8-Φ23 450 618 - -
125 400 270 220 188 176 8-Φ25 450 675 - -
150 480 300 250 218 204 8-Φ25 560 743 - -
200 600 375 320 282 160 12-Φ30 640 850 - -
250 650 445 385 345 313 12-34 720 975 340 380
300 750 510 450 408 364 16-34 800 1115 340 415
400 950 655 585 535 474 16-41 900 1425 340 465

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