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Insulated gate valve

Product Overview

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.

Structural characteristics

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.

Execution standard

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

Performance parameter

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

Product Dimensions

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
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