Product
GB Knife Gate Valve
GB Knife Gate Valve
GB Knife Gate Valve
GB Knife Gate Valve
GB Knife Gate Valve
GB Knife Gate Valve

GB Knife Gate Valve

Design spec: EN558
Face to face: DIN 3202 F4
Flange end: DIN EN1092-1
Pressure-temp: EN558
Test&check: DIN EN12266
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Product Parameters

Production enforce standard

Product specification Design spec Face to face Flange end Pressure-temp Test&check
EN558 DIN 3202 F4 DIN EN1092-1 EN558 DIN EN12266

Material of Main Parts

Name Body Ball Seat Stem Lever
Material WCB SS304 PTFE 410 A3

Technical Data

Nominal Pressure PN16 PN25 PN40 PN64 Test Medium
Shell Test (2.4MPa) (3.75MPa) (6.0MPa) (9.6MPa) Water
Seal Test (1.76MPa) (2.75MPa) (4.4MPa) (7.04MPa)
Air SealTest 80Lb(0.6MPa) 80Lb(0.6MPa) 80Lb(0.6MPa) 80Lb(0.6MPa) Air
Suitable Temp -29~120°C
Suitable Media Water/Steam/Oil

PN10

DN L D D1 D2 N-Th d
50 48 165 125 99 4-M16 18
65 48 185 145 118 4-M16 18
80 51 200 160 132 8-M16 18
100 51 220 180 156 8-M16 18
125 57 250 210 184 8-M16 18
150 57 285 240 211 8-M20 23
200 70 340 295 266 8-M20 23
250 70 395 350 319 12-M20 23
300 76 445 400 370 12-M20 23
350 76 505 460 429 16-M20 23
400 89 565 515 480 16-M24 27
450 89 615 565 530 20-M24 27

PN16

DN L D D1 D2 N-Th d
50 48 165 125 99 4-M16 18
65 48 185 145 118 4-M16 18
80 51 200 160 132 8-M16 18
100 51 220 180 156 8-M16 18
125 57 250 210 184 8-M16 18
150 57 285 240 211 8-M20 23
200 70 340 295 266 12-M20 23
250 70 405 355 319 12-M24 27
300 76 460 410 370 12-M24 27
350 76 520 470 429 16-M24 27
400 89 580 525 480 16-M27 30
450 89 640 585 548 20-M27 30

Product Packaging

Production Process

  • 1.Casting

  • 2.Processing

  • 3. Assemble

  • 4. Test

  • 5. Spray paint

  • 6. Inspection

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