High Pressure Top Entry Ball Valve

Top-Entry Ball Valve–High pressure Top-Entry Ball Valve

Product Overview

The Top-Entry Ball Valve features an integral valve body design with a top-entry maintenance capability, allowing key internal components to be serviced without removing the valve from the pipeline.

The ball is precisely positioned using an upper-assembled pivot and integrated high-strength ball stem, ensuring accurate operation and reliable sealing. A unique retractable valve seat technology allows online replacement of valve stem, stem seals, metal seats, and preloaded springs, minimizing downtime and maintenance costs.

This design is ideal for critical service applications in chemical, oil & gas, and high-pressure pipeline systems where safety, reliability, and maintenance efficiency are essential.

Structural Features

1. Top Online Maintenance

Key internal components can be serviced in-line, eliminating the need for pipeline shutdown or valve removal.

2. Integral Body Structure

One-piece valve body improves structural strength, reduces leakage risk, and ensures high reliability.

3. Low Torque Operation

Trunnion-mounted design reduces operating torque, making manual or automated operation easier.

4. Small Fluid Resistance

Full bore and smooth internal flow path minimize pressure drop and energy loss.

5. Emergency Sealing Device

Allows temporary sealing restoration in the event of seat or stem seal damage.

6. Rapid On-Off Operation

Designed for fast opening and closing, suitable for emergency shut-off.

7. Reliable Sealing

High-precision ball and seat surfaces ensure tight shut-off under varying pressure and temperature conditions.

Product Range

Body Materials:

WCB, WCC, LCB, CF8, CF8M, CF3, CF3M, CN7M, CF8C, 4A, A105, LF2, F304, F316, F304L, F316L, F321, F51, and other materials upon request

Nominal Diameter:

2" ~ 36"

Pressure Rating:

Class 150 ~ Class 2500