Electric Hard-Sealed Ball Valve
Electric hard-sealed ball valve adopts hard alloy sealing surfaces, featuring wear resistance and high temperature resistance. Driven electrically, it opens and closes rapidly, suitable for shut-off and regulation under severe working conditions.
Tags
Features
- It is mainly used to cut off or connect the medium in the pipeline, and can also be applied to the regulation and control of fluids. It is a pipeline pressure component for industrial automation process control.
- The ball of a fixed ball valve is fixed and does not move under pressure. Fixed ball valves are all equipped with floating seats. Under medium pressure, the seat moves to press the sealing ring tightly against the ball, ensuring sealing.
- It is easy to operate and opens/closes quickly: only a 90° rotation is needed from fully open to fully closed, making it convenient for remote control.
- With a straight-through structure and simple flow passage, it features low flow resistance, no jamming, and erosion resistance.
- Maintenance-free: it requires no maintenance once put into operation, effectively reducing maintenance costs.
Basic Parameters
Nominal Diameter (DN):
DN15-DN350
(For larger diameters, please contact our company for detailed information)
Nominal Pressure:
PN1.6～6.4MPa
Operating Power Supply:
AC110V, AC220V, AC380V, DC24V
Medium Temperature:
≤450℃
Ambient Temperature:
-30～60℃
Control Method:
Modulating or On/Off Control
Actuation Time:
15～120 seconds (0-90°) optional
Dead Band:
0.3%～3.0% adjustable
Connection & Sealing
Connection Type:
Wafer Connection, Flange Connection
Seat Type:
Stainless Steel Movable Hard Seal
Material Specifications
Body & Internal Components
Body Material:
WCB, SS304, SS316, SS316L
Seat Material:
SS304, SS316, SS316L
Valve Core Material:
SS304, SS316, SS316L
Applicable Medium
- Mineral Slurry
- Coal Slurry
- Paper Slurry
- Water
- Oil
- Gas
Standards Compliance
Design & Manufacturing:
GB/T 12237-2007
Flange Standards:
- GB/T 9124.1-2019
- GB/T 9124.2-2019
- GB17241.6-2008
Face-to-Face Dimension:
GB12221-2005
Inspection Standard:
GB/T 13927-2008
Main Parameters
| Nominal Diameter | DN15–DN350 (For larger sizes, please contact our company for detailed data) |
| Nominal Pressure | PN1.6～6.4MPa |
| Connection Type | Wafer connection, Flange connection |
| Seat Type | Stainless Steel Movable Hard Seal |
| Operating Time | 15～120s (0–90°) adjustable |
| Power Supply | AC110V, AC220V, AC380V, DC24V |
| Control Mode | Modulating or On-Off control |
| Pneumatic Actuation | Single-acting (with spring return) or Double-acting |
| Medium Temperature | ≤450℃ |
| Ambient Temperature | -30～60℃ |
| Suitable Media | Ore slurry, coal slurry, paper pulp, water, oil, gas |
| Dead Band | 0.3%～3.0% adjustable |
| Body Material | WCB, SS304, SS316, SS316L |
| Seat Material | SS304, SS316, SS316L |
| Ball/Plug Material | SS304, SS316, SS316L |
| Manufacturing Standard | GB/T 12237-2021 |
| Flange Standard | GB/T 9124.1-2019, GB/T 9124.2-2019, GB17241.6-2008 |
| Face-to-Face Standard | GB12221-2005 |
| Inspection Standard | GB/T 13927-2022 |
Installation Dimensions of Explosion-proof Electric Ball Valve
1.Main Connection Dimensions of Electric Hard-Sealed Ball Valve (Wafer Type)
| Nominal DiameterDN(mm) | in | A | φD | H1 | H2 | H | W1 | W2 |
| 15 | 1/2" | 62 | 54 | 74 | 75 | 390 | 196 | 145 |
| 20 | 3/4" | 62 | 54 | 74 | 75 | 390 | 196 | 145 |
| 25 | 1" | 62 | 54 | 74 | 75 | 390 | 196 | 145 |
| 32 | 1 1/4" | 62 | 78 | 80 | 75 | 400 | 196 | 145 |
| 40 | 1 1/2" | 62 | 82 | 85 | 75 | 405 | 196 | 145 |
| 50 | 2" | 75 | 100 | 87 | 95 | 430 | 196 | 145 |
| 65 | 2 1/2" | 80 | 120 | 105 | 115 | 498 | 255 | 182 |
| 80 | 3" | 100 | 131 | 115 | 125 | 520 | 255 | 182 |
| 100 | 4" | 115 | 158 | 125 | 125 | 530 | 255 | 182 |
| 125 | 5" | 130 | 180 | 140 | 155 | 570 | 255 | 182 |
| 150 | 6" | 160 | 216 | 153 | 165 | 600 | 255 | 182 |
| 200 | 8" | 200 | 260 | 200 | 195 | 680 | 255 | 182 |
| 250 | 10" | 240 | 325 | 225 | 225 | 730 | 255 | 182 |
| Pressure Test:The shell hydrostatic test pressure is 1.5 times the maximum working pressure, and the seal test pressure is 1.1 times the maximum working pressure. Test Medium: Water | ||||||||
2.Main Connection Dimensions of Electric Hard-Sealed Ball Valve (Flanged Type)
Design Standard: GB/T 12237-2007
Flange Standard: GB/T 9113-2010 National Standard Unit: (mm)
| DN (mm) | in | D1 | D2 | d | K | D | M | B | F | L | H1 | H2 | W1 | W2 |
| 15 | 1/2" | 15 | 28 | 45 | 65 | 95 | 4-Φ14 | 14 | 2 | 102 | 290 | 55 | 196 | 145 |
| 20 | 3/4" | 15 | 28 | 55 | 75 | 105 | 4-Φ14 | 14 | 2 | 102 | 300 | 60 | 196 | 145 |
| 25 | 1" | 20 | 40 | 66 | 85 | 115 | 4-Φ14 | 14 | 2 | 102 | 310 | 65 | 196 | 145 |
| 32 | 1 1/4" | 25 | 46 | 78 | 100 | 135 | 4-Φ18 | 16 | 2 | 114 | 320 | 75 | 196 | 145 |
| 40 | 1 1/2" | 32 | 54 | 85 | 110 | 145 | 4-Φ18 | 16 | 2 | 114 | 330 | 80 | 196 | 145 |
| 50 | 2" | 40 | 65 | 100 | 125 | 160 | 4-Φ18 | 16 | 2 | 124 | 340 | 85 | 196 | 145 |
| 65 | 2 1/2" | 50 | 80 | 120 | 145 | 180 | 4-Φ18 | 18 | 2 | 145 | 350 | 100 | 196 | 145 |
| 80 | 3" | 65 | 100 | 135 | 160 | 195 | 8-Φ18 | 20 | 2 | 165 | 360 | 105 | 196 | 145 |
| 100 | 4" | 80 | 110 | 155 | 180 | 215 | 8-Φ18 | 20 | 2 | 194 | 420 | 115 | 196 | 145 |
| 125 | 5" | 100 | 135 | 185 | 210 | 245 | 8-Φ18 | 22 | 3 | 210 | 430 | 130 | 255 | 184 |
| 150 | 6" | 125 | 165 | 210 | 240 | 280 | 8-Φ23 | 24 | 3 | 229 | 450 | 150 | 255 | 184 |
| 200 | 8" | 160 | 205 | 265 | 295 | 335 | 12-Φ23 | 26 | 3 | 243 | 480 | 175 | 255 | 184 |
| 250 | 10" | 210 | 260 | 320 | 355 | 405 | 12-Φ26 | 30 | 3 | 297 | 520 | 220 | 255 | 184 |
| 300 | 12" | 250 | 322 | 375 | 410 | 460 | 12-Φ26 | 30 | 3 | 340 | 600 | 250 | 255 | 184 |
| 350 | 14" | 300 | 365 | 435 | 470 | 520 | 16-Φ26 | 34 | 3 | 422 | 630 | 280 | 255 | 184 |
3.Maximum Allowable Leakage Rate
| DN(mm) | Metal Seat | Soft Seat |
| 15 | 1.1ml/min | 0.12ml/min |
| 20 | 1.5ml/min | 0.16ml/min |
| 25 | 2.0ml/min | 0.20ml/min |
| 32 | 2.4ml/min | 0.24ml/min |
| 40 | 3.0ml/min | 0.30ml/min |
| 50 | 3.8ml/min | 0.38ml/min |
| 65 | 5.2ml/min | 0.52ml/min |
| 80 | 6.2ml/min | 0.62ml/min |
| 100 | 7.6ml/min | 0.76ml/min |
| 125 | 9.6ml/min | 0.96ml/min |
| 150 | 12.0ml/min | 1.20ml/min |
| 200 | 15.4ml/min | 1.54ml/min |
| 250 | 19.2ml/min | 1.92ml/min |
4.Standard Construction Materials
| Part Name | Material |
|---|---|
| Valve Body | Carbon Steel ASTM A216 WCC |
| Valve Body Liner | High Chromium Steel ASTM A532 Grade III Type A |
| V‑Notch Ball | High Chromium Steel ASTM A532 Grade III Type A |
| Seal Ring | High Chromium Steel ASTM A532 Grade III Type A |
| Seal Retaining Ring | Carbon Steel ASTM A105 |
| Bearing Protective Sleeve | High Chromium Steel ASTM A532 Grade III Type A |
| Bearing | 440C 58 HRC |
| Drive Shaft | 17‑4PH Condition H1025 |
| Driven Shaft | 17‑4PH Condition H1025 |
| Pin | Carbon Steel, Zinc Plated |
| Gasket | Graphite with Stainless Steel Wire |
| Packing | PTFE with Carbon Filler |
| Stuffing Box Ring & Protective Sleeve | 316 SST |
| Bolt | SA‑193‑B7 |
| Nut | SA‑194‑2H |
| Retaining Ring Screw & Latch | 316 SST |
| Seal Ring Liner (Optional) | PSZ Ceramic |
| V‑Notch Ball (Optional) | PSZ Ceramic |
Applicable Standards for Hard-Sealed Electric Control Valve
| Manufacturing Standard | GB/T 12237-1989 |
| Flange Standard | GB 9113-2000, GB 17241.6-1998 |
| Face-to-Face Standard | GB 12221-1989 |
| Inspection Standard | GB/T 13927-1992 |
Circuit Diagram
S
MS
PIU
CPT
PCU
G
SP
