V-type Ball Valve
V-type ball valve is a rotary shut off valve with V-shaped gap in the core. Using it with valve positioner may realize ratio adjustment. It is widely used in industrial sectors such as petroleum, chemical, papermaking, metallurgy, water treatment, and so on. It may regulate or cut off the media in pipeline. With a big flow coefficient, booster ring at valve seat for adjusting sealing force load, it can ensure tight seal.
Product Features
A、Movable spring-loaded valve seat structure prevents jamming or severing between ball core and valve seat to make the seal reliable and useful life long.
B、There is shearing action between V-shaped notch ball core and metal valve seat, so it is applicable especially to media containing fiber, micro solid materials, pulp, and so on.
C、When it is fully open, there will be a big flow capacity and small pressure loss and the medium will not deposit in the valve cavity.
D、The valve has precise adjustment and reliable position function. The flow characteristic is approximate equal percentage and the adjustable range is wide with largest adjustable ratio of 100:1.
Principle design Parameters
Nominal pressure: PN1.6~PN6.4MPa
Operating temperature: room temperature -28~+180℃
Medium temperature: -28~+250℃
High temperature: -40~+425℃
Valve body material: WCB Cf8 CF8M CF3M
Valve stem: 2Cr13 304 316
Revolution angle: 90°
Valve seat: PTFE 0Cr17Ni4Cu4Nb
Valve disk material: Cf8 CF8M CF3M
Basic error: ≤1.5%
Return difference: ≤1.5%
Dead zone: ≤0.5%
Nomianl diameter DN, rated flow coefficient Kv, allowable pressure difference △P see the table
| DN | mm | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 150 | 200 | 250 | 300 | 350 | 400 |
|---|
| Kv | - | 22 | 36 | 58 | 82 | 145 | 200 | 355 | 798 | 418 | 2209 | 3185 | 4309 | 5664 |
| ΔP | MPa | 14 | 8 | 10 | 9 | 20 | 14 | 8 | 6 | 3.5 | 1.6 | 2.5 | 2 | 1.5 |
1.Wafer V-type Ball Valve
Technique Standard
| Design Basis | GB Standard | ANSI Standard |
|---|
| Design Standard | GB/T 12237 | ANSI B16.34 |
| Connecting Flange Size | GB/T 9113, JB/T 79 | ANSI B16.5 |
| Test & Inspection | JB/T 9092 | API 598 |
Form of Main Parts Materials
| Name of Parts | Quantity (pieces) | Material |
|---|
| Body | 1 | WCB, CF8, CF8M, CF3, CF3M |
| Spool | 1 | CF8, CF8M + Hard chrome plating or supersonic spray coating |
| After steam | 2 | 17-4PH, SS316 |
| Cylindrical pin | 1 | SS304, SS316 |
| Before steam | 1 | 17-4PH, SS316 |
| Spline | 1 | 17-4PH, SS316 |
| Flat key | 1 | SS304, 45# |
| After end | 1 | CF8, CF8M |
| O-Ring | 1 | Viton |
| Adjust pad | Each 1 | PTFE |
| Self-lubricating bearings | 1 | Composite material |
| Self-lubricating bearings | 1 | Composite material |
| Packing | Group 1 | PTFE |
| Gland | 1 | CF8 |
| O-Ring | 1 | Viton |
| Seal block | 1 | PTFE, SS304, SS316 + Hard chrome or supersonic spray coating |
| Seal block spring | 1 | SS316 |
| Sealing lid | 1 | Q235, SS304, SS316 |
| Inner Hexagon screw | 1 | SS304 |
| Hexagon screw | 4 | SS304 |
| Double-headed screw | 2 | SS304 |
| Hexagon nut | 2 | SS304 |
V-Type Pneumatic Ball Valve Standard Specification
| Model | ZTQ47F (P, H, Y) |
|---|
| Bore | DN25–500 mm |
| Pressure | 1.6, 2.5, 4.0, 6.4 MPa; 150Lb, 300Lb, 600Lb; 10K, 20K |
| Structure | Fixed V-notch ball |
| Dimension standard | GB, American Standard, Japanese Standard |
| Body material | Carbon steel (WCB); Stainless steel (CF8, CF8M, CF3, CF3M) |
| Seat material | PTFE (F), PPL (P), Nylon (N), Hard alloy (H, Y) |
| Mode of action | Double-acting / Single-acting (spring return) pneumatic actuator |
| Control | Switch type, Adjust type, Intelligent |
| Selection of Accessories | Solenoid valve, Locator, Limit switch, F.R.L. combination unit, Manual device |
V-Type Electric Ball Valve Standard Specification
| Model | ZTQ947F (P, H, Y) |
|---|
| Bore | DN25–500 mm |
| Pressure | 1.6, 2.5, 4.0, 6.4 MPa; 150Lb, 300Lb, 600Lb; 10K, 20K |
| Structure | Fixed V-notch ball |
| Dimension standard | GB, American Standard, Japanese Standard |
| Body material | Carbon steel (WCB); Stainless steel (CF8, CF8M, F3, CF3M) |
| Seat material | PTFE (F), PPL (P), Nylon (N), Hard alloy (H, Y) |
| Mode of action | Power on type, power off type |
| Control | Switch type, Adjust type, Intelligent |
| Selection of Accessories | Stroke switch, analog quantity feedback module, electric control box |
Wafer V-Type Ball Valve Various Seal Structure
Metal sealing seat
| NO. | Name | Temperature range (°C) |
|---|
| 1 | Seal Bonnet | -20 ~ 160°C / -20 ~ 230°C |
| 2 | Spring | -20 ~ 160°C / -20 ~ 230°C |
| 3 | O-Ring | -20 ~ 160°C / -20 ~ 230°C |
| 4 | Body | -20 ~ 160°C / -20 ~ 230°C |
| 5 | Seal Block | -20 ~ 160°C / -20 ~ 230°C |
| 6 | Spool | -20 ~ 160°C / -20 ~ 230°C |
High-temperature metal seal seat
| NO. | Name | Temperature range (°C) |
|---|
| 1 | Seal Bonnet | -20 ~ 425°C |
| 2 | Spring | -20 ~ 425°C |
| 3 | Flower ring | -20 ~ 425°C |
| 4 | Graphite ring | -20 ~ 425°C |
| 5 | Seat | -20 ~ 425°C |
| 6 | Body | -20 ~ 425°C |
| 7 | Spool | -20 ~ 425°C |
Soft Seat
| NO. | Name | Temperature range (°C) |
|---|
| 1 | Seal Bonnet | -20 ~ 160°C |
| 2 | Spring | -20 ~ 160°C |
| 3 | O-Ring | -20 ~ 160°C |
| 4 | Body | -20 ~ 160°C |
| 5 | Seal Block | -20 ~ 160°C |
| 6 | Seal Ring (PTFE) | -20 ~ 160°C |
| 7 | Spool | -20 ~ 160°C |
Main Outline and Connecting Flange Size
| DN | L | L1 | ~H | H1 | D | D1 | Pneumatic Actuator Model | Electric Actuator Models |
|---|
| 25 | 50 | 169/209 | 260/290 | 81 | 68 | 38 | AT063DR/AT083SC | ZT-05 |
| 32 | 60 | 169/209 | 267/297 | 86 | 76 | 45 | AT063DR/AT083SC | ZT-05 |
| 40 | 60 | 201/242 | 292/312 | 90 | 84 | 50 | AT075DR/AT092SC | ZT-10 |
| 50 | 75 | 209/242 | 292/312 | 93 | 100 | 62 | AT083DR/AT092SC | ZT-10 |
| 65 | 100 | 242/275 | 332/340 | 108 | 118 | 73 | AT092DR/AT105SC | ZT-15 |
| 80 | 100 | 275/332 | 359/381 | 123 | 132 | 90 | AT105DR/AT125SC | ZT-20 |
| 100 | 115 | 332/385 | 394/411 | 138 | 158 | 115 | AT125DR/AT140SC | ZT-50 |
| 125 | 129 | 385/450 | 410/416 | 148 | 184 | 134 | AT140DR/AT160SC | ZT-100 |
| 150 | 160 | 450/507 | 461/486 | 170 | 216 | 164 | AT160DR/AT190SC | ZT-100 |
| 200 | 200 | 507/562 | 509/553 | 201 | 268 | 206 | AT190DR/AT210SC | ZT-200 |
| 250 | 240 | 272/305 | 572/628 | 237 | 326 | 260 | AT240DR/AT270SC | ZMQ-300 |
2.Flanged V-type Ball Valve
Technique Standard
| Design Basis | GB Standard | ANSI Standard |
|---|
| Design Standard | GB/T 12237 | ANSI B16.34 |
| Connecting Flange Size | GB/T 9113, JB/T 79 | ANSI B16.5 |
| Test & Inspection | JB/T 9092 | API 598 |
Form of Main Parts Materials
| Name of Parts | Quantity (pieces) | Material |
|---|
| Body | | WCB, CF8, CF8M, CF3, CF3M |
| Spool | 1 | CF8, CF8M + Hard chrome or supersonic spray coating |
| After steam | 1 | 17-4PH, SS316 |
| Cylindrical pin | 2 | SS304, SS316 |
| Before steam | 1 | 17-4PH, SS316 |
| Spline | 1 | 17-4PH, SS316 |
| Flat key | 1 | SS304, 45# |
| After gland | 1 | CF8, CF8M |
| O-Ring | 1 | Viton |
| Adjust pad | Each 1 | PTFE |
| Self-lubricating bearings | 1 | Composite material |
| Self-lubricating bearings | 1 | Composite material |
| Packing | Group 1 | PTFE |
| Gland | 1 | CF8 |
| O-Ring | 1 | Viton |
| Seal block | 1 | PTFE, SS304, SS316 + Hard chrome or supersonic spray coating |
| Seal block spring | 1 | SS316 |
| Sealing lid | 1 | Q235, SS304, SS316 |
| Inner hexagon screw | | SS304 |
| Hexagon screw | 4 | SS304 |
| Double-headed screw | 2 | SS304 |
| Hexagon nut | 2 | SS304 |
Flange V-Type Ball Valve Various Seal Structure
Metal sealing seat
| NO. | Name | Temperature range (°C) |
|---|
| 1 | Seal Bonnet | -20 ~ 160°C / -20 ~ 230°C |
| 2 | Spring | -20 ~ 160°C / -20 ~ 230°C |
| 3 | O-Ring | -20 ~ 160°C / -20 ~ 230°C |
| 4 | Body | -20 ~ 160°C / -20 ~ 230°C |
| 5 | Seal Block | -20 ~ 160°C / -20 ~ 230°C |
| 6 | Spool | -20 ~ 160°C / -20 ~ 230°C |
High-temperature metal seal seat
| NO. | Name | Temperature range (°C) |
|---|
| 1 | Seal Bonnet | -20 ~ 425°C |
| 2 | Spring | -20 ~ 425°C |
| 3 | Flower ring | -20 ~ 425°C |
| 4 | Graphite ring | -20 ~ 425°C |
| 5 | Seat | -20 ~ 425°C |
| 6 | Body | -20 ~ 425°C |
| 7 | Spool | -20 ~ 425°C |
Soft Seat
| NO. | Name | Temperature range (°C) |
|---|
| 1 | Seal Bonnet | -20 ~ 160°C |
| 2 | Spring | -20 ~ 160°C |
| 3 | O-Ring | -20 ~ 160°C |
| 4 | Body | -20 ~ 160°C |
| 5 | Seal Block | -20 ~ 160°C |
| 6 | Seal Ring (PTFE) | -20 ~ 160°C |
| 7 | Spool | -20 ~ 160°C |
Main Outline and Connecting Flange Size
| DN | L | L1 | ~H | H1 | D | D1 | D2 | D3 | C | f | n-Φd | Pneumatic Actuator Model | Electric Actuator Models |
|---|
| 25 | 102 | 169/209 | 260/290 | 81 | 115 | 85 | 65 | 38 | 16 | 2 | 4-Φ14 | AT063DR/AT083SC | ZT-05 |
| 32 | 102 | 169/209 | 267/297 | 86 | 140 | 100 | 76 | 42 | 18 | 3 | 4-Φ18 | AT063DR/AT083SC | ZT-05 |
| 40 | 114 | 201/242 | 292/312 | 90 | 150 | 110 | 84 | 50 | 18 | 3 | 4-Φ18 | AT075DR/AT092SC | ZT-10 |
| 50 | 124 | 209/242 | 292/312 | 93 | 165 | 125 | 99 | 60 | 20 | 3 | 4-Φ18 | AT083DR/AT092SC | ZT-10 |
| 65 | 145 | 242/275 | 327/340 | 108 | 185 | 145 | 118 | 75 | 20 | 3 | 4-Φ18 | AT092DR/AT105SC | ZT-15 |
| 80 | 165 | 275/332 | 359/381 | 123 | 200 | 160 | 132 | 94 | 20 | 3 | 8-Φ18 | AT105DR/AT125SC | ZT-20 |
| 100 | 194 | 332/385 | 395/412 | 138 | 220 | 180 | 156 | 110 | 22 | 3 | 8-Φ18 | AT125DR/AT140SC | ZT-50 |
| 125 | 194 | 385/450 | 399/416 | 148 | 250 | 210 | 184 | 135 | 22 | 3 | 8-Φ18 | AT140DR/AT160SC | ZT-100 |
| 150 | 229 | 450/507 | 461/486 | 170 | 285 | 240 | 211 | 165 | 24 | 3 | 8-Φ22 | AT160DR/AT190SC | ZT-100 |
| 200 | 243 | 507/562 | 509/553 | 200 | 340 | 295 | 266 | 210 | 24 | 3 | 12-Φ22 | AT190DR/AT210SC | ZT-200 |
| 250 | 297 | 646/722 | 603/628 | 240 | 405 | 355 | 319 | 260 | 26 | 3 | 12-Φ26 | AT240DR/AT270SC | ZMQ-250 |
| 300 | 338 | 722 | 790/825 | 286 | 460 | 410 | 370 | 310 | 28 | 4 | 12-Φ26 | AT270DR/AT350SC | ZMQ-300 |
| 350 | 400 | 1180 | 828/858 | 330 | 520 | 470 | 429 | 360 | 30 | 4 | 16-Φ26 | AT300DR/AT400SC | ZMQ-400 |
| 400 | 400 | 1180 | 1063/- | 367 | 580 | 525 | 480 | 410 | 32 | 4 | 16-Φ30 | AT400DR/AW35S | ZMQ-500 |
| 500 | 600 | 1320 | - | 490 | 715 | 650 | 609 | 510 | 36 | 4 | 16-Φ33 | AW28/AW35S | ZMQ-600 |
2.Fluorine Lined V-type Ball Valve
Description of Products
Fluorine Lined V-type Ball Valve is a 360° quarter-turn senior control valve. With the positioner, proportional control can be realized, and with the 5/2 way solenoid valve and control box, it can realize the on–off control. The V-port is designed according to required flow rate to achieve accurate flow characteristic and control ability. It characterized with large rated flow coefficient, large adjustable ratio, superior sealing performance, compact structure, and can be installed vertically.
As there is no gap between valve core and valve seat, it has the shear function and self-cleaning, which is especially suitable for the fibrous medium or containing soft particle.
All wetted part is lined by PFA/FEP by injection or transfer molding process. It can be used in strong corrosive medium such as acid, alkali and toxic, volatile, easy penetration medium.
V-type Ball Valve V-port OPtions
Flow Coefficient Table
| DN | Inch | O-Port | V30° | V45° | V60° |
|---|
| 25 | 1" | 18.2 | 5 | 8 | 12 |
| 32 | 1 1/4" | 28.5 | 8 | 12 | 18 |
| 40 | 1 1/2" | 47 | 13 | 20 | 30 |
| 50 | 2" | 73 | 21 | 31 | 46 |
| 65 | 2 1/2" | 114 | 32 | 48 | 72 |
| 80 | 3" | 181 | 51 | 76 | 115 |
| 100 | 4" | 292 | 82 | 123 | 185 |
| 125 | 5" | 456 | 128 | 192 | 289 |
| 150 | 6" | 712 | 201 | 300 | 452 |
| 200 | 8" | 1025 | 289 | 432 | 650 |
Technical Specification
| Technical Index | Without positioner | With positioner |
|---|
| Basic error (%) | ±5 | ±1.5 |
| Backlash (%) | – | 1.5 |
| Dead zone (%) | ±4 | 0.6 |
| Deviation of rated travel (%) | +4 | +2.5 |
| Allowed leakage | VI grade (or no leakage) | 5 × 10⁻⁶ × Valve rated volume |
| Optional accessories | Electric positioner or electric/pneumatic transverter, air set, solenoid valve, hand wheel, etc. | Electric positioner or electric/pneumatic transverter, air set, solenoid valve, hand wheel, etc. |
| Rated flow rate coefficient Kv difference (%) | ±10% | ±10% |
Material Specifications
| Name | Material |
|---|
| Body, Bonnet, packing gland | Cast steel + lining materials (WCB/CF8 + FEP/PFA) |
| Ball & stem | Cast steel + lining materials (WCB/CF8 + FEP/PFA) |
| Seat, packing | PTFE |
| Cylinder | Pressing aluminum (oxidized) |
| Piston | Cast aluminum (oxidized) |
Manufacturing Process
Step 1: Order and Design
Production begins after confirming the customer’s technical requirements, such as valve size, pressure class, body material, trim material, connection type, and control conditions. Based on the application, the engineering team prepares drawings and a production plan to ensure the V-type ball valve delivers accurate flow control and reliable sealing performance.
Step 2: Forging & Casting
The main components, including the valve body, bonnet, and ball, are manufactured from qualified raw materials through forging or casting according to design requirements. This process provides the valve with good mechanical strength, pressure resistance, and structural stability.
Step 3: Machining
All critical parts are machined with high precision using CNC equipment. Special attention is given to the V-port ball, valve seat, stem connection, and end connections to ensure accurate flow characteristics, tight sealing, and smooth operation.
Step 4: Assembly
After machining and cleaning, all components are assembled by skilled technicians. The V-port ball, stem, seat, seals, bearings, and actuator mounting parts are installed carefully to ensure stable control performance, reliable shut-off, and long service life.
Step 5: Testing & Quality Assurance
Each V-type ball valve undergoes strict inspection and testing before shipment, including dimensional inspection, pressure testing, sealing test, and operation test. This ensures the valve meets quality standards and performs reliably in regulating and shut-off applications.
Step 6: Painting and Finishing
After final testing, the valve surface is cleaned and treated with protective coating or anti-rust treatment as required. The finished product is then marked, fitted with a nameplate, packed properly, and prepared for safe delivery.
Applications
V-type ball valves are widely used in various fields. Their superior quality and high-performance stability are beyond the reach of ordinary cast steel ball valves. Their service life is much longer than that of cast steel ball valves. They are applied in various pipeline equipment such as urban gas, urban heating, petrochemicals, shipbuilding, steel, pressure regulating stations, power plants, etc. V-type ball valves can operate reliably for a long time, require less maintenance, are easy to install, and the installation process is also more convenient.
These valves are widely used in:
Agriculture and Irrigation
Factory Environment
Why Choose Us
Superior Quality
Our valves are manufactured using premium materials and undergo rigorous quality testing to ensure reliable performance in demanding industrial applications.
Advanced Technology
Equipped with state-of-the-art CNC machining centers and precision manufacturing equipment, we deliver valves with exceptional accuracy and consistency.
Competitive Pricing
Through optimized manufacturing processes and bulk material procurement, we offer high-quality valves at competitive prices without compromising on quality.
Expert Support
Our experienced technical team provides comprehensive support from product selection to after-sales service, ensuring optimal valve performance for your specific application.
