Explosion-proof Electric Flange Ball Valve
A 0–90° quarter-turn rotation provides bubble-tight sealing, high flow capacity, low pressure drop, simple construction, easy maintenance, and long service life. Suited to tight-shutoff applications, it handles gas, liquid, steam, sewage, and fibrous media, and is used across petroleum, chemical, metallurgy, light industry, pulp & paper, power generation, and refrigeration.
- Zero-leakage sealing — Bidirectional spherical sealing reaches zero-leakage standards, ensuring no leakage in service.
- Wear resistance and long life — The PTFE seat provides self-lubrication and low friction against the ball, extending service life.
- Flexible flow control — Ball port available in rectangular, V-port, and O-port to suit different flow control requirements.
Basic Parameters
Nominal Diameter (DN):
DN15 - DN200
Operating Power Supply:
AC110V, AC220V, AC380V, DC24V
Medium Temperature:
-20°C to 350°C
(Special sealing for >200°C)
Working Pressure:
PN1.0 ~ 10.0MPa
Control Method:
Modulating or On/Off Control
Protection Class:
IP67
Connection & Sealing
Connection Type:
Flange Type
Sealing Type:
Elastic Seal, High-Temperature Resistant PPS (Polyphenylene Sulfide), Hard Alloy & Industrial Ceramics
Leakage Rate:
Complies with ANSI B16.104 Class 5 Standard
Material Specifications
Body & Internal Components
Body Material:
A105, F304, F316, WCB, FZG1Cr18Ni9Ti, ZG1Cr18Ni12Mo2Ti, CF8, CF8M, CF3M
Ball Material:
SUS304, SUS316
Sealing Components
Seat Material:
PTFE (Normal Temperature)
Special PPL (High Temperature)
Metal Seal (High Temperature)
Applicable Medium
- Water
- Petroleum
- Nitric Acid
- Acetic Acid
- Viscous Fluids
- Slurries
- Strong Oxidizing Media
Explosion Protection
Ex db ⅡC T6 Gb
Flameproof enclosure with increased safety
Explosion Protection
Flameproof (d) + Increased Safety (b)
Gas Group
ⅡC (Hydrogen, Acetylene)
Temperature Class
T6 (≤85°C)
Equipment Protection Level
Gb (Zone 1 & 2)
Standards Compliance
Design & Manufacturing:
GB 12237-2007, API 6D
Flange Standards:
- JB/T 79-2015
- GB/T 9124.1-2019
- GB/T 9124.2-2019
- ANSI B16.5
- JIS B2239
Face-to-Face Dimension:
GB 12221-2005
Inspection Standard:
API 598
Main Parameters
| Item | Specification |
|---|---|
| Power Supply | AC110V, AC220V, AC380V, DC24V |
| Nominal Diameter | DN15-200 |
| Medium Temperature | -20℃ to +350℃ (+200℃ for special seal) |
| Working Pressure | PN1.0~10.0MPa |
| Control Mode | Regulation or On-Off Control |
| Connection Type | Flanged |
| Body Material | A105, F304, F316, WCB, FZG1Cr18Ni9Ti, ZG1Cr18Ni12Mo2Ti, CF8, CF8M, CF3M |
| Seat Material | PTFE (normal temperature), Special PPL (high temperature), Metal seal (high temperature) |
| Leakage Class | ANSI B16.104 Class 5 |
| Sealing Type | Elastic seal, High temperature resistant polyphenylene, Hard alloy, Industrial ceramic |
| Applicable Medium | Water, Petroleum, Nitric acid, Acetic acid, Viscous fluid, Slurry, Strong oxidizing medium |
| Protection Grade | IP67 |
| Design and Manufacturing Standard | GB12237-2021, API 6D |
| Flange Standard | JB/T 79-2015, GB/T 9124.1-2019, GB/T 9124.2-2019, ANSI B16.5, JIS B2239 |
| Face-to-Face Dimension | GB12221-2005 |
| Inspection Standard | API 598 |
Dimension Drawing
1.Installation Dimensions of Explosion-proof Electric Ball Valve
| Nominal Diameter (DN) | L | D | K | D1 | n-Φd | b | i | H | W1 | W2 | |
| mm | in | ||||||||||
| 15 | 1/2″ | 130 | 95 | 65 | 45 | 4-Φ14 | 14 | 2 | 239 | 217 | 150 |
| 20 | 3/4″ | 130 | 105 | 75 | 55 | 4-Φ14 | 16 | 2 | 241 | 217 | 150 |
| 25 | 1″ | 142 | 113 | 85 | 65 | 4-Φ14 | 18 | 2 | 249 | 217 | 150 |
| 32 | 1-1/4″ | 165 | 140 | 100 | 78 | 4-Φ18 | 18 | 2 | 263 | 217 | 150 |
| 40 | 1-1/2″ | 165 | 150 | 110 | 85 | 4-Φ18 | 18 | 2 | 264 | 217 | 150 |
| 50 | 2″ | 203 | 165 | 125 | 100 | 4-Φ18 | 20 | 2 | 277 | 217 | 150 |
| 65 | 2-1/2″ | 222 | 185 | 145 | 120 | 8-Φ18 | 20 | 2 | 323 | 217 | 150 |
| 80 | 3″ | 241 | 200 | 160 | 135 | 8-Φ18 | 21 | 2 | 344 | 268 | 180 |
| 100 | 4″ | 305 | 220 | 180 | 155 | 8-Φ18 | 22 | 2 | 363 | 268 | 180 |
| 125 | 5″ | 356 | 250 | 210 | 184 | 8-Φ18 | 22 | 3 | 416 | 268 | 180 |
| 150 | 6″ | 394 | 285 | 240 | 210 | 8-Φ23 | 24 | 3 | 426 | 268 | 180 |
| 200 | 8″ | 457 | 340 | 295 | 265 | 12-Φ23 | 26 | 3 | 491 | 268 | 180 |
Circuit Diagram
S
MS
PIU
CPT
PCU
G
SP
