Technology / product information

A Ball Valve is a type of flow control device commonly used to regulate the flow of liquids or gases through a pipeline. It operates by using a spherical disc (the "ball") that has a hole through the center. When the valve is open, the hole aligns with the flow direction, allowing fluids to pass through. When the valve is closed, the ball is rotated so that the hole is perpendicular to the flow, blocking the passage and stopping the flow.

Revolutionize process efficiency with V-port valves capable of temperature resistance, wear resistance, and flow control.

Structure and Features
NDV's V-Port Valves are optimal for handling various high viscosity fluids including resin pellets (such as nylon), powders (such as fly ash), paper industry slurries (pulp liquids), and slurry (mud water from steel mills, lime milk, etc.). They exhibit high performance in terms of temperature resistance, wear resistance, and flow control.

V-Cut Ball
The semi-spherical ball with a V-shaped opening effectively cuts cellulose and solids. The application of stellite on the seat side and wrapping on the ball surface enhances wear resistance (Hard chrome plating is applied for soft seats).

Pocketless Structure
Since the seat is placed only on the inlet side, there is no retention or clogging of fluid between the ball and the body. This sealing configuration also prevents abnormal pressure rises.

Seats with Temperature and Wear Resistance
The seats are designed to be both rigid and flexible, enabling sealing from vacuum to high pressure without being affected by temperature or pressure differences. Metal seats are used for high-temperature applications. They also have high wear resistance against abrasive fluids such as slurry and powder.

Stable Bearing Configuration
Reinforced PTFE is applied to the stem and trunnion bearings, allowing for low operation torque and frequent operations.

Excellent Sealing with Gland Packing
The application of V-packing allows for perfect sealing from vacuum to high-pressure situations (V100ND).

Integral Body
The valve body is all one piece, which means no torque fluctuations due to piping stress, no deterioration of sealing, and no external leaks.

Full Flow
When the valve is fully open, the flow path is almost straight, minimizing pressure loss and ensuring full capacity flow. Slurries and high viscosity fluids flow smoothly without retention or cavitation.

Flow Control
The V-cut ball broadens the variable range and improves flow control capability. The flow characteristics are nearly equal percentage.

The NDV V-Port Valves offer an ideal solution for processes seeking durability, reliability, and precise flow control in handling high viscosity fluids.

For more details, please download the PDF or feel free to contact us.