Pressure Range: PN1.6~6.4MPa, ANSI150LB~600LB
Nominal Diameter: DN15~DN400
Connection Mode: RF/RJ/FF/LG, Flange PN16 convex surface, PN40, 64 concave convex surface
Body Material: LCB, WCB, CF8, CF8M, CF3, CF3M
Flow Characteristics: ON-OFF
Valve Core Movement: Close the valve clockwise
Seat Form: Soft seat, metal seat (seal cover hardening)
Suitable Temperature: Soft seat: -20~+250°C; Metal seat: -60~+450°C
Leakage Level: Soft seat: ANSI VI; Metal seat: ANSI IV
Design Standard: GB/T 12237, ASME B16.34
V-port control ball valve is a kind of ball valve. It shuts down a half-sphere with a V opening. The V-shaped opening has a sharp edge, and during the process of rotating the sphere, wiping occurs between the closed position and the media, which generates a strong cutting force. The sphere of the V-shaped opening port forms a fan-shaped area, and with the valve seat, it can change the port area.
In the process of rotary forming, it allows for medium precision adjustment. It is a type of regulator with an angle of rotation, similar to the common ball valve sealing. This design combines regulation and switch functions. Equipped with pneumatic or electric actuators, it is widely used in industrial process control systems.
| Z | SH | QV | Y – 16 | K | 25 |
| Product | Z | Actuator class | |||||||
| Actuator | SH | Pneumatic piston type | |||||||
| DR | Electric | ||||||||
| Spool Type | QV | Ball Valve | |||||||
| Do | Three position ball valves at both ends | ||||||||
| Supplementary structure(multiple combinations) | Y | Hard Seal | |||||||
| J | Jacket insulation type | ||||||||
| D | Low temperature type | ||||||||
| Nominal pressure | 16 | 1.6MPa | |||||||
| 40 | 4.0MPa | ||||||||
| 64 | 6.4MPa | ||||||||
| 100 | 10.0MPa | ||||||||
| Machine action mode | K | Gas open | |||||||
| B | Gas closed type | ||||||||
| KD | Double acting gas opening | ||||||||
| Nominal diameter | 25 | For example, said | |||||||
| 100 | |||||||||
| Body material | C | WCB | |||||||
| P | CF8 | ||||||||
| M | CF8M | ||||||||
| L | CF3M | ||||||||
Example 1: ZDRQY-16K 25C refers to a “QV” type electric hard seal cutting ball valve with a nominal pressure of PN1.6 MPa. It operates with an electric open mechanism and has a nominal diameter of DN25. The body material is WCB.
Example 2: ZSHQY-16KD 100P refers to a pneumatic piston type “QV” sealing cut-off ball valve with a nominal pressure of PN1.6 MPa. It operates with a gas-open double-acting mechanism and has a nominal diameter of DN100. The body material is CF8.
Body: The use of a one-piece valve body design, both the dual and flange v-port control ball valve bodies are the overall side structure. The structure is rigid, making it less likely to deform or leak.
Stem: The outer circle adopts fine grinding technology, reducing the friction coefficient between the packing. The valve stem and core use a spline connection, ensuring good neutrality, large bearing torque, and effective elimination of gaps between the valve stem and core. This improves the valve regulation precision.
Self-Lubricating Bearing: The upper and lower stem is fixed with self-lubrication, providing high rotary precision, good rotational stability, and smoother valve operation.
Sealing Seat Cover: The side-mounted sealing seat cover design simplifies valve maintenance and makes it more convenient.
V-Type Valve Core: Designed with a special V-shaped incision, this core provides approximately the same percentage of flow characteristics. The incision between the ball and seat offers a shear effect, enabling it to cut and scrape fiber media, high-viscosity fluids, and solid particles, allowing smooth flow through the valve. The V-ball undergoes surface hardening, grinding, and polishing for wear resistance.
Seat: The preload with a waveform spring ensures the seal seat is always in close contact with the valve core. This design enhances sealing performance and allows for automatic compensation over long-term use, reducing seal wear.
Soft and Metal Seal Seats: Soft seal seats and metal seal seats are interchangeable to suit different working conditions.
Valve Seat Replacement: The valve seat replacement process is simple and convenient.
Small Flow Rate Accurate Control: Through the processing of a small diameter valve core with a special V-shaped opening, small Cv values can be accurately controlled.
| Part No. | Part Name | Quantity (pieces) | Material |
| 1 | Body | 1 | WCB, CF8, CF8M, CF3, CF3M |
| 2 | Spool | 1 | CF8, CF8M (Hard chrome plating or supersonic spray) |
| 3 | Back Stem | 1 | 17-4PH, SS316 |
| 4 | Cylindrical Pin | 2 | SS304, SS316 |
| 5 | Front Stem | 1 | 17-4PH, SS316 |
| 6 | Spline | 1 | 17-4PH, SS316 |
| 7 | Flat Key | 1 | SS304, 45# |
| 8 | Back Gland | 1 | CF8, CF8M |
| 9 | O-rings | 1 | Fluorine rubber |
| 10 | Adjusting Pad | Various | PTFE |
| 11 | Self-Lubricating Bearing | 1 | Composite materials |
| 12 | Self-Lubricating Bearing | 1 | Composite materials |
| 13 | Packing | 1 Set | PTFE |
| 14 | Packing Gland | 1 | CF8 |
| 15 | O-rings | 1 | Fluorine rubber |
| 16 | Sealing Ring | 1 | SS304, SS316 (Hard chrome plating or supersonic spray) |
| 17 | Seal Seat Spring | 1 | SS316 |
| 18 | Seal Seat Cover | 1 | Q235, SS304, SS316 |
| 19 | Hexagon Socket Screw | 1 | SS304 |
| 20 | Hexagon Screws | 4 | SS304 |
| 21 | Double Screw | 2 | SS304 |
| 22 | Hexagon Screws | 2 | SS304 |
Soft Seal Seat: 0.6 MPa compressed air, no leakage.
Hard Sealed Seat: 1.Made according to customer’s requirements. 2.Sealed according to GB/T4312V class without special requirements, the specific leakage amount is determined accordingly.
| Specifications | Max. Allowable Leakage of Hard Seal |
| DN25 (1″) | 0.15 mL/min |
| DN32 (1 1/4″) | 0.18 mL/min |
| DN40 (1 1/2″) | 0.24 mL/min |
| DN50 (2″) | 0.30 mL/min |
| DN65 (2 1/2″) | 0.39 mL/min |
| DN80 (3″) | 0.48 mL/min |
| DN100 (4″) | 0.60 mL/min |
| DN125 (5″) | 0.75 mL/min |
| DN150 (6″) | 0.90 mL/min |
| DN200 (8″) | 1.20 mL/min |
| DN250 (10″) | 1.50 mL/min |
| DN300 (12″) | 1.80 mL/min |
| DN350 (14″) | 2.10 mL/min |
| DN400 (16″) | 2.40 mL/min |
| DN450 (18″) | 2.60 mL/min |
| DN500 (20″) | 3.00 mL/min |
The inherent flow characteristics of the V-type regulator are approximately equal percentage characteristics, as demonstrated in the following figure.
| Specifications | Cv Value |
| DN25 (1″) | 36 |
| DN32 (1 1/4″) | 56 |
| DN40 (1 1/2″) | 94 |
| DN50 (2″) | 152 |
| DN65 (2 1/2″) | 262 |
| DN80 (3″) | 358 |
| DN100 (4″) | 540 |
| DN125 (5″) | 90 |
| DN150 (6″) | 1424 |
| DN200 (8″) | 2176 |
| DN250 (10″) | 3532 |
| DN300 (12″) | 5732 |
| DN350 (14″) | 8245 |
| DN400 (16″) | 10651 |
| DN450 (18″) | 12878 |
| DN500 (20″) | 16343 |
| DN | A | B | b1 | f | C | T | Y | L | Φd | h | S | K | M | Z |
| 25 | 102 | 115 | 16 | 2 | 38 | 81 | 73 | 75 | 16 | 35 | 75 | / | 2-M10 | 5 |
| 32 | 102 | 140 | 18 | 2 | 45 | 86 | 78 | 75 | 16 | 35 | 75 | / | 2-M10 | 5 |
| 40 | 114 | 150 | 18 | 2 | 50 | 90 | 80 | 75 | 16 | 35 | 75 | / | 2-M10 | 5 |
| 50 | 124 | 165 | 20 | 2 | 62 | 93 | 90 | 75 | 16 | 35 | 75 | / | 2-M10 | 5 |
| 65 | 145 | 185 | 20 | 2 | 73 | 108 | 105 | 75 | 16 | 35 | 75 | / | 2-M10 | 5 |
| 80 | 165 | 200 | 20 | 2 | 90 | 123 | 118 | 75 | 20 | 35 | 90 | 28 | 4-M10 | 6 |
| 100 | 194 | 220 | 22 | 2 | 115 | 138 | 130 | 75 | 20 | 35 | 90 | 28 | 4-M10 | 6 |
| 125 | 194 | 250 | 22 | 2 | 134 | 148 | 145 | 80 | 25 | 40 | 90 | 28 | 4-M10 | 8 |
| 150 | 229 | 285 | 24 | 2 | 164 | 170 | 170 | 94 | 30 | 50 | 110 | 40 | 4-M12 | 8 |
| 200 | 243 | 340 | 24 | 2 | 206 | 200 | 201 | 94 | 30 | 50 | 110 | 40 | 4-M12 | 8 |
| 250 | 297 | 405 | 26 | 2 | 260 | 240 | 237 | 98 | 40 | 60 | 135 | 40 | 4-M16 | 12 |
| 300 | 338 | 460 | 28 | 2 | 316 | 286 | 282 | 98 | 40 | 60 | 135 | 40 | 4-M16 | 12 |
| 350 | 400 | 520 | 30 | 2 | 372 | 330 | 337 | 125 | 50 | 60 | 140 | 64 | 4-M16 | 14 |
| 400 | 400 | 580 | 32 | 2 | 420 | 367 | 372 | 172 | 60 | 80 | 170 | 80 | 4-M20 | 18 |
| 450 | 520 | 640 | 40 | 2 | 470 | 422 | 432 | 172 | 70 | 90 | 190 | 90 | 4-M24 | 20 |
| 500 | 600 | 715 | 44 | 2 | 516 | 490 | 498 | 180 | 80 | 100 | 190 | 90 | 4-M24 | 22 |
The v-port control ball valve is widely used in industrial process control systems requiring precise flow regulation. Its unique V-shaped core design ensures accurate control, even in applications involving high-viscosity fluids, fiber media, or fluids containing solid particles. The valve is ideal for industries such as chemical processing, petroleum, power generation, pulp and paper, and wastewater treatment. It provides excellent sealing performance, smooth operation, and is suitable for both throttling and on-off applications. The valve’s high durability and efficiency make it perfect for systems requiring long-term reliability and minimal maintenance.
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