Description
Buy Half Ball Valve PBQ640 PN16–PN100 Carbon Steel Flanged Gear Operated
The PBQ Series Eccentric Half Ball Valve by VALVEHU is an industrial-grade valve engineered for high-efficiency flow control in demanding systems. Its advanced eccentric structure ensures a low-friction, wear-resistant seal with automatic compensation, extending valve life under frequent operation and high differential pressures.
Manufactured to standards including API 6D, API 598, and ASME B16.10, this valve guarantees reliable performance and dimensional interchangeability. The body and key components are available in a wide range of materials such as WCB, LCB, ZG1Cr18Ni9Ti, and 25Cr2Mo1V, meeting the corrosion, pressure, and temperature requirements of diverse industries.
The PBQ eccentric ball valve features a segmented construction where the ball core is slightly off-centered, enabling the disc to disengage smoothly from the seat upon opening. This eliminates abrasion and improves sealing longevity. Its seat material options include PTFE-lined welded assemblies or metal-seated alloys for higher pressure and temperature applications. The design supports manual, electric, and pneumatic actuation options, making it suitable for automation-ready environments.
Common applications include petrochemical systems, urban pipeline networks, thermal power stations, and high-viscosity or corrosive fluid handling. The valve’s tight shut-off and reduced torque requirements make it ideal for isolation or throttling tasks where traditional ball valves may wear prematurely.
For operators seeking to upgrade flow efficiency and reliability with a durable and maintenance-friendly valve, the PBQ series provides a powerful solution. To explore technical advice or application matching, please contact the specialists at VALVEHU China. Our engineering team will support you in selecting the right valve for your industrial needs.
Technical Specifications
- Valve Type: Eccentric Half Ball Valve
- Model: PBQ340/640/940H/Y
- Design Standards: API 6D, API 598, ASME B16.10
- Body Material: WCB, LCB, ZG1Cr18Ni9Ti, 25Cr2Mo1V
- Ball Material: Stainless steel, surface-hardened
- Seat Options: PTFE composite or metal-to-metal welded
- Sealing Structure: Eccentric, automatic compensation type
- Connection Type: Flanged
- Actuation: Manual, Electric, Pneumatic
- Application Range: Oil, gas, steam, corrosive media
Main Component Material Table
No. | Component | Material |
---|---|---|
1 | Body | WCB / LCB / ZG1Cr18Ni9Ti / ZG1Cr18Ni12Mo2Ti / ZG15Cr1Mo1V |
2 | Bonnet | Q235A / A105 / 1Cr18Ni9Ti / 0Cr18Ni12Mo2Ti / 25Cr2Mo1V |
3 | Bushing | SF-1 / FB090 / FB316 / FB3090 |
4 | Lower Stem | 20Cr13 / 1Cr18Ni9Ti / 0Cr18Ni12Mo2Ti |
5 | Ball | WCB / LCB / ZG1Cr18Ni9Ti / ZG1Cr18Ni12Mo2Ti / ZG15Cr1Mo1V |
6 | Gland Flange | Q235A / LF2 / 1Cr18Ni9Ti / 0Cr18Ni12Mo2Ti / 25Cr2Mo1V |
7 | Seat | Q235A+PTFE/Welded / LF2+PTFE/Welded / 1Cr18Ni9Ti/PTFE / 0Cr18Ni12Mo2Ti/PTFE / 25Cr2Mo1V/PTFE |
8 | Ball Crown | 1Cr18Ni9Ti (Special Treatment) / 0Cr18Ni12Mo2Ti (Special Treatment) / 1Cr18Ni9Ti (Special Treatment) |
9 | Shaft Bushing | SF-1 / FB090 / FB316 / FB090 |
10 | Upper Stem | 20Cr13 / 1Cr18Ni9Ti / 0Cr18Ni12Mo2Ti |
11 | Packing Gland | WCB / LCB / ZG1Cr18Ni9Ti / ZG0Cr18Ni12Mo2Ti / ZG15Cr1Mo1V |
12 | Bonnet Cover | WCB / LCB / ZG1Cr18Ni9Ti / ZG0Cr18Ni12Mo2Ti / ZG15Cr1Mo1V |
13 | Stud Bolt | 35CrMoA / 0Cr18Ni9 / 15Cr1Mo1V |
14 | Nut | 45 / 0Cr18Ni9 / 20CrMo |
15 | Packing Material | Flexible Graphite |
16 | Cover Plate | WCB / LCB / ZG1Cr18Ni9Ti / 0Cr18Ni12Mo2Ti / ZG15Cr1Mo1V |
17 | Support | WCB |
18 | Actuator Head | QT |
Main Dimensions and Connection Sizes – Eccentric Half Ball Valve PN1.6MPa (Unit: mm)
Model | DN (mm) | L | D | K | d | b | f | z–φd | Hw | Hd |
---|---|---|---|---|---|---|---|---|---|---|
PBQ340H-16F/Y | 50 | 178 | 160 / 165 | 125 | 100 | 18 | 2 | 4–φ18 | 270 | 310 |
PBQ340H-16F/Y | 65 | 190 | 180 / 185 | 145 | 120 | 18 | 2 | 4–φ18 | 280 | 320 |
PBQ340H-16F/Y | 80 | 203 | 195 / 200 | 160 | 135 | 20 | 2 | 8–φ18 | 290 | 330 |
PBQ340H-16F/Y | 100 | 229 | 215 / 220 | 180 | 156 | 22 | 2 | 8–φ18 | 330 | 380 |
PBQ340H-16F/Y | 125 | 254 | 245 / 250 | 210 | 184 | 22 | 2 | 8–φ23 | 345 | 405 |
PBQ340H-16F/Y | 150 | 267 | 280 / 285 | 240 | 211 | 24 | 2 | 8–φ23 | 370 | 440 |
PBQ340H-16F/Y | 200 | 292 | 335 / 340 | 295 | 266 | 24 | 2 | 12–φ23 | 405 | 470 |
PBQ340H-16F/Y | 250 | 330 | 405 | 355 | 320 | 26 | 2 | 12–φ26 | 480 | 540 |
PBQ340H-16F/Y | 300 | 356 | 460 | 410 | 375 | 28 | 2 | 12–φ26 | 520 | 580 |
PBQ340H-16F/Y | 350 | 430 | 520 | 470 | 435 | 30 | 2 | 16–φ26 | 570 | 630 |
PBQ340H-16F/Y | 400 | 530 | 580 | 525 | 485 | 32 | 2 | 16–φ30 | 630 | 710 |
PBQ340H-16F/Y | 450 | 580 | 640 | 585 | 545 | 34 | 2 | 20–φ30 | 690 | 770 |
PBQ340H-16F/Y | 500 | 660 | 705 / 715 | 650 | 605 | 36 | 2 | 20–φ33 | 740 | 820 |
PBQ340H-16F/Y | 600 | 840 | 840 | 770 | 718 |
Main Dimensions and Connection Sizes – Side-Mounted Eccentric Half Ball Valve PN1.6MPa (Unit: mm)
Model | DN (mm) | L | D | D1 | D2 | b | f | H | Z–φd |
---|---|---|---|---|---|---|---|---|---|
PBQ340H-16F/ Y | 40 | 165 | 145 | 110 | 84 | 18 | 2 | 210 | 4–18 |
PBQ340H-16F/Y | 50 | 178 | 160 | 125 | 99 | 20 | 2 | 230 | 4–18 |
PBQ340H-16F/Y | 65 | 190 | 180 | 145 | 118 | 20 | 2 | 245 | 4–18 |
PBQ340H-16F/Y | 80 | 203 | 195 | 160 | 132 | 22 | 2 | 265 | 8–18 |
PBQ340H-16F/Y | 100 | 229 | 215 | 180 | 156 | 22 | 2 | 310 | 8–18 |
PBQ340H-16F/Y | 125 | 254 | 245 | 210 | 184 | 22 | 2 | 350 | 8–18 |
PBQ340H-16F/Y | 150 | 267 | 280 | 240 | 211 | 24 | 2 | 395 | 8–22 |
PBQ340H-16F/Y | 200 | 292 | 335 | 295 | 266 | 24 | 2 | 435 | 12–22 |
PBQ340H-16F/Y | 250 | 330 | 405 | 355 | 319 | 26 | 2 | 480 | 12–26 |
PBQ340H-16F/Y | 300 | 356 | 460 | 410 | 370 | 28 | 2 | 550 | 12–26 |
PBQ340H-16F/Y | 350 | 381 | 520 | 470 | 429 | 30 | 2 | 620 | 16–33 |
PBQ340H-16F/Y | 400 | 430 | 580 | 525 | 480 | 32 | 2 | 670 | 16–30 |
PBQ340H-16F/Y | 450 | 502 | 640 | 585 | 548 | 34 | 2 | 700 | 20–30 |
PBQ340H-16F/Y | 500 | 550 | 705 | 650 | 609 | 34 | 2 | 760 | 20–32 |
PBQ340H-16F/Y | 600 | 660 | 840 | 770 | 720 | 36 | 2 | 850 | 20–36 |
PBQ340H-16F/Y | 700 | 750 | 910 | 840 | 794 | 40 | 3 | 920 | 24–36 |
PBQ340H-16F/Y | 800 | 850 | 1025 | 950 | 901 | 42 | 5 | 1100 | 24–39 |
PBQ340H-16F/Y | 900 | 950 | 1125 | 1050 | 966 | 46 | 5 | 1300 | 28–39 |
PBQ340H-16F/Y | 1000 | 1050 | 1255 | 1170 | 1070 | 46 | 5 | 1600 | 28–42 |
PBQ340H-16F/Y | 1200 | 1200 | 1485 | 1390 | 1278 | 52 | 5 | 1950 | 32–48 |
FAQ
What is the advantage of an eccentric half ball valve?
It reduces seat wear, ensures low torque operation, and improves sealing longevity in abrasive or corrosive systems.
Is the PBQ valve suitable for high-pressure applications?
Yes, metal-seated versions and materials like 25Cr2Mo1V support high-pressure, high-temperature environments.
What standards does this valve comply with?
It conforms to API 6D, API 598, and ASME B16.10 for global industrial compatibility.
Can I automate the PBQ eccentric valve?
Absolutely. It supports electric or pneumatic actuators for integration in control systems.
What kind of media can this valve handle?
It is ideal for oil, gas, steam, slurry, and chemical service where sealing reliability is critical.
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