Explosion-proof Electric Butterfly Valve
The Explosion-proof Electric Butterfly Valve is an automated control valve specifically designed for flammable and explosive environments. It combines the compact structure of a wafer butterfly valve with an explosion-proof electric actuator, making it widely used in high-risk industrial sectors such as petroleum, natural gas, and chemical processing.
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Basic Parameters
Nominal Bore (DN):
DN40~800
Operating Power:
AC110V / AC220V / AC380V / DC24V
Medium Temperature:
-20℃~+120℃
Ambient Temperature:
-30℃~+60℃
Nominal Pressure:
0.1~2.5MPa
Actuation Time:
15S / 30S / 60S
Control Method:
Modulating or On/Off Control
Connection & Sealing
Connection Types:
- Wafer Type
- Flange Type
Seal Types:
Soft Seal
Test Pressure - Shell:
1.76MPa
Test Pressure - Seal:
2.4MPa
Material Specifications
Body & Internal Components
Body Material:
WCB, QT450-10, HT200, HT250, SUS304, SUS316
Disc Material:
WCB, QT450-10, HT200, HT250, SUS304, SUS316
Shaft Material:
2Cr13
Sealing Components
Sealing Ring:
Nitrile Oil-Resistant Rubber, EPDM, PTFE, PPL, etc.
Stem Seal:
NBR, HNBR
Packing:
Flexible Graphite
Suitable Media
- Water
- Oil
- Gas
- Corrosive Medium
- Other Media
Explosion Protection
Ex db â…¡C T6 Gb
Flameproof enclosure with increased safety
Explosion Protection
Flameproof (d) + Increased Safety (b)
Gas Group
â…¡C (Hydrogen, Acetylene)
Temperature Class
T6 (≤85°C)
Equipment Protection Level
Gb (Zone 1 & 2)
Standards Compliance
Design:
GB/T 12238-2008
Flange:
- GB/T 9124.1-2019
- GB/T 9124.2-2019
- GB/T 17241.6-2008
Face-to-Face:
GB/T 12221-2005
Testing:
GB/T 13927-2008
Installation Dimensions of Explosion-proof Electric Butterfly Valve
Nominal Diameter DN(mm) | L | D | N-ΦD | H2 | H1 | W2 | W1 |
40 | 33 | 125 | 4-Φ18 | 48 | 276 | 217 | 150 |
50 | 42.6 | 125 | 4-Φ18 | 70 | 398 | 217 | 150 |
65 | 45.6 | 145 | 4-φ18 | 76 | 375 | 217 | 150 |
80 | 45.6 | 160 | 8-φ18 | 89 | 381 | 217 | 150 |
100 | 51.6 | 180 | 4-φ22 | 104 | 414 | 217 | 150 |
125 | 55.6 | 210 | 4-φ22 | 120 | 429 | 217 | 150 |
150 | 55.6 | 240 | 4-φ23 | 139 | 465 | 217 | 150 |
200 | 59.6 | 295 | 4-φ23 | 175 | 536 | 268 | 180 |
250 | 67.6 | 355 | 4-φ28 | 203 | 562 | 268 | 180 |
300 | 77.6 | 410 | 4-φ28 | 242 | 561 | 268 | 180 |
350 | 77 | 470 | 4-φ28 | 277.5 | 562 | 268 | 180 |
400 | 86.5 | 525 | 4-φ30 | 309 | 613 | 354 | 273 |
450 | 105.6 | 585 | 4-φ30 | 337 | 633 | 354 | 273 |
500 | 131.8 | 650 | 4-φ33 | 361 | 693 | 354 | 273 |
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