Insulated gate valve is mainly used in petroleum, chemical, metallurgical, pharmaceutical and other systems. It is suitable for opening and closing pipelines with nominal pressure of PN1.6 ~ 6.4Mpa (national standard) 150Lb ~ 300lb-600Lb (American Standard) and working temperature of - 29 ~ 425 ℃ (carbon steel) and - 40 ~ 500 ℃ (stainless steel). The jacket of the valve is welded between the two flanges of the valve. The side and bottom of the valve are provided with jacket connection ports. The jacket can flow freely with steam or other hot insulation medium to ensure that the viscous medium can flow smoothly through the valve.
The jacket is welded between the two flanges of the valve, and the side and bottom of the valve are provided with jacket connection ports.
2. The size of the connecting flange is one to two specifications larger than that of the common valve of the same specification, and the structural length is the same as that of the common valve of the same specification.
The jacket can flow freely through steam or other hot insulation medium to ensure that the viscous medium can flow smoothly through the valve.
Design and manufacture: GB12234-89 API600
Length of structure: GB12221-89
Flange connection: ANSI B16.5, GB9112 ~ 9131, JB/T74 ~ 90, JB/T79-94, SH3006, HG20615 ~ 20635
Pressure and temperature classes: GB9131, ANSI B16.34
Test and inspection: JB/T 9092, GB13927, API598
Nominal diameter: DN40~300mm
Nominal pressure: PN1.6mpa ~ 6.4mpa / 150LB-300LB-600lb
Applicable temperature: -29~425℃ (carbon steel), -40~500℃ (stainless steel)
Applicable medium: water, oil, steam, heat conducting oil, filtration, easy crystallinity
Main materials: forged steel, cast steel, stainless steel
Type | Pressure |
Nominal diameter DN |
Size(mm) | |||||||
L | D | D1 | D2 | b | z-d | H | D0 | |||
BZ41H-16C BZ41W-16P BZ41W-16R |
1.6 | 40 | 200 | 160 | 125 | 100 | 18-3 | 4-18 | 310 | 200 |
50 | 250 | 180 | 145 | 120 | 18-3 | 4-18 | 358 | 240 | ||
65 | 265 | 195 | 160 | 135 | 20-3 | 8-18 | 373 | 240 | ||
80 | 280 | 215 | 180 | 155 | 20-3 | 8-18 | 435 | 280 | ||
100 | 300 | 245 | 210 | 185 | 22-3 | 8-18 | 500 | 300 | ||
125 | 325 | 280 | 240 | 210 | 24-3 | 8-23 | 614 | 320 | ||
150 | 350 | 335 | 295 | 265 | 26-3 | 12-23 | 674 | 360 | ||
200 | 400 | 405 | 355 | 320 | 30-3 | 12-25 | 818 | 400 | ||
250 | 450 | 460 | 410 | 375 | 30-4 | 12-25 | 969 | 450 | ||
300 | 500 | 520 | 470 | 435 | 34-4 | 16-25 | 1145 | 560 | ||
BZ41H-25C BZ41W-25P BZ41W-25R |
2.5 | 40 | 200 | 160 | 125 | 100 | 20-3 | 4-18 | 358 | 240 |
50 | 250 | 180 | 145 | 120 | 22-3 | 8-18 | 373 | 240 | ||
65 | 265 | 195 | 160 | 135 | 22-3 | 8-18 | 435 | 280 | ||
80 | 280 | 230 | 190 | 160 | 24-3 | 8-18 | 500 | 300 | ||
100 | 300 | 270 | 220 | 188 | 28-3 | 8-15 | 614 | 320 | ||
125 | 325 | 300 | 250 | 218 | 30-3 | 8-25 | 674 | 360 | ||
150 | 350 | 360 | 310 | 278 | 34-3 | 12-25 | 818 | 400 | ||
200 | 400 | 425 | 370 | 332 | 36-3 | 12-30 | 969 | 450 | ||
250 | 450 | 485 | 430 | 390 | 40-4 | 12-30 | 1145 | 560 | ||
300 | 500 | 550 | 490 | 448 | 40-4 | 16-34 | 1145 | 640 |