Manual V-Port Ball Valve

If you need accurate and consistent flow control, a V-port ball valve is built for the job. Unlike standard ball valves, this valve uses a v-shaped ball or seat that opens gradually—giving you linear flow characteristics rather than sudden on/off flow. You can choose from various “V” angles depending on how finely you need to regulate the flow.

As a professional v-port ball valve manufacturers and suppliers, TOT Valve can not only provide you with high-quality V-port valves, but also give you unparalleled factory prices. Contact us now to get more stable products for your fluid control system.

Description

If you’re searching for precise flow control, a V-port ball valve is the ideal solution. Unlike standard ball valves, this control valve features a v-shaped ball or seat that opens gradually, offering linear flow characteristics and reducing pressure surges.

You can choose from different v port profiles—such as 15°, 30°, 45°, 60°, and 90°—to match your system’s specific requirements. That’s what makes v port ball control valves an essential part of many industrial automation and fluid control applications.

V-port ball valve profiles

 

How a V-Port Valve Works?

A V-port valve uses a precision-engineered ball with a V-shaped bore. As you turn the handle or engage an actuator, the bore aligns with your pipeline. The small end of the V opens first, allowing for smooth, incremental fluid flow. This mechanism enables you to control flow with a high degree of accuracy—ideal for demanding processes.

Whether you choose a manual V-port ball valve or an actuated one, all it takes is a quarter-turn to go from fully closed to fully open. This makes installation and operation fast, reliable, and efficient.

 

How to Choose the Right V-Port Ball Valve?

V-port ball valve CV

  • Precise Flow Control: Our v port ball valves offer equal-percentage flow characteristics, allowing for smooth, accurate regulation. Perfect for throttling, dosing, or modulating applications.
  • Low Pressure Drop: The valve’s straight-through flow path reduces turbulence and minimizes pressure loss. You can even downsize without compromising flow rate.
  • High Shut-Off Capability: Thanks to the quarter-turn design, our manual v port ball valves operate reliably even at high pressures—requiring only a compact actuator.
  • Bubble-Tight Shut-Off: The floating ball seats tightly against pressure, delivering leak-free (bubble-tight) performance—ideal for gas and critical containment systems.

 

Design Standards

TOT Valve provides different types of V-port ball valves that comply with ISO and ASME standards.

Pressure & Temperature Structural Length Temperature Range Sealing & Strength Test Standards
ASME B16.34-2003, ISO 7005-1 ISA S75.04-1995, IEC/DIN 534-3-2 -46℃ ~ 343℃ GB/T 4213-2007

 

Manual V-Port Ball Valve Main Components and Materials

The TOT V-port ball valve is well-made and easy to operate and clean. It consists of a durable stainless steel metal body, self-lubricating bearings, a low-friction shaft and a manual V-port ball. In addition, a variety of seat options are available, such as metal seats or soft seats. Below is a summary of the main components of the V-port ball valve and their component materials for you to choose from.

Valve Stem: The valve stem is finely ground and matched with the actuator with high precision, making the valve backlash small

Valve Body: The valve body adopts an integral structure with good rigidity, reducing the possibility of leakage

Packing: The packing is made of high-quality PTFE material with good sealing

Bearing: The bearing adopts self-lubricating bearing with high load-bearing capacity, small friction coefficient, and reduced operating torque

Spring: The spring adopts a special hexagonal spring, which reduces the friction between the ball and the valve seat while providing preload, making the valve operating torque smaller

Ball: The ball with a V-notch is hard chrome plated, ion nitrided or supersonic sprayed on the spherical surface to improve the surface hardness, so that the ball mouth has a hard and sharp edge with shearing function for the medium

Valve Seat: The special bonnetless design makes there is no dead angle between the valve seat and the valve body, the medium is not easy to accumulate, and the solid particle medium will not be stuck

V-port Ball Valves Main Components

No. Name Material
1 Body WCB CF8 CF8M
2 Core CF8 surface hard nickel plating CF8 surface hard nickel plating CF8M surface hard nickel plating
3 Cylindrical Pin 304 304 316
4 Seat 304 cladding carbide 304 cladding carbide 316 cladding carbide
5 Spring 316 316 316
6 O-ring Fluororubber Fluororubber Fluororubber
7 Self-lubricating bearing 304+PTFE 304+PTFE 316+PTFE
8 Lower Valve Stem 20Cr13 304 316
9 O-ring Fluororubber Fluororubber Fluororubber
10 Rear Gland WCB CF8 CF8M
11 Ring Washer PTFE PTFE PTFE
12 Adjusting Washer PTFE PTFE PTFE
13 Flat Washer Q235 304 304
14 Bolt 25 304 304
15 Stud 25 304 304
16 Self-lubricating bearing 304+PTFE 304+PTFE 316+PTFE
17 Flat key 20Cr13 304 316
18 Lower Packing PTFE PTFE PTFE
19 Middle Packing PTFE PTFE PTFE
20 Upper Packing PTFE PTFE PTFE
21 Package Gland WCB CF8 CF8M
22 Nut 35 304 304
23 Upper Valve Stem 20Cr13 304 316

 

Manual V-Port Ball Valve Overall Dimensions

V-port Ball Valve Dimensions
TOT Valves can provide you with various sizes of manual V-port ball valves. We have listed some manual V-port ball valve sizes suitable for PN16/150LB for your reference.

If you do not have the manual V-port ball valve size you need, you can contact us immediately. Our professional sales manager will contact you and can provide you with exclusive ODM and OEM services.

Size A L B H C D D1
DN Inch
25 1″ 145 200 70 133 170 60 60
32 1-1/4″ 145 200 70 138 170 60 60
40 1-1/2″ 145 200 70 140 170 60 60
50 2″ 145 200 70 150 170 60 64
65 2-1/2″ 145 200 70 165 170 60 75
80 3″ 145 200 70 178 170 60 90
100 4″ 145 200 70 190 170 60 100
125 5″ 170 235 74 205 190 75 97
150 6″ 170 235 74 235 190 75 120
200 8″ 190 265 90 265 220 83 125
250 10″ 215 325 100 317 270 106 150
300 12″ 215 325 100 362 270 150 150
350 14″ 260 370 125 437 300 180 180
400 16″ 260 370 125 492 300 180 180
450 18″ 260 370 125 570 300 230 230
500 20″ 270 415 130 640 340 280 280
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