Product Overview

Directly buried fully welded ball valves are designed for underground or buried piping systems and are widely used in city heating and city gas pipeline networks. The valve is fully welded to ensure excellent sealing performance and zero leakage. It is ideal for applications requiring high safety and long-term reliability. The one-piece welded design of the valve body eliminates the need for flange bolting or threaded connections, ensuring superior sealing and resistance to external damage during underground installation.

The valve is made of carbon steel for superior strength, durability and corrosion resistance in underground environments. The extended stem design allows the valve to be easily operated and maintained even in buried environments, eliminating costly excavation work.

The valve utilizes PTFE seals to ensure excellent sealing performance and chemical resistance, providing additional protection against leakage. Designed for pressures ≤ PN25 (or 150LB), the valve is suitable for high-pressure systems such as city heating networks and gas pipelines, providing reliable and safe flow control.

Product Characteristics

All-welded construction: The all-welded design ensures superior sealing performance, eliminating the risk of leakage from flanged or threaded connections, making it ideal for city gas and heating networks where long-term reliability and safety are critical.

Carbon steel material: the valve body is made of carbon steel, a material with high strength and good corrosion resistance, suitable for underground installation and high-pressure piping systems. Carbon steel valves are treated with a protective coating to ensure long-term stable operation even under harsh soil conditions.

Extended Stem Design: The valve features an extended stem design that allows for easy operation even when buried. This reduces the need for costly excavation and provides easier access for maintenance.

Zero Leakage Seal: Featuring a metal-to-metal seal and a one-piece welded body, this valve ensures zero leakage performance, making it a reliable choice for high-pressure gas and heating systems.

Corrosion resistance: Carbon steel material combined with special coating treatment has excellent corrosion resistance in the underground environment, ensuring reliable operation of the valve in long-term operation.

High-pressure and high-temperature resistant: the valve is designed to withstand high-pressure and high-temperature working conditions, suitable for urban gas pipelines and heating pipe network.

Low maintenance requirements: The valve's all-welded construction and corrosion-resistant materials reduce the risk of wear and tear, thereby reducing maintenance frequency and costs.

Product Advantages

EXCELLENT DURABILITY: The valve's all-welded design and carbon steel material provide excellent pressure and corrosion resistance even in harsh underground environments, ensuring long-term stable operation.

RELIABLE SEALING: Metal-to-metal sealing and welded valve body provide reliable sealing performance, effectively preventing gas or liquid leakage and ensuring system safety.

Easy Maintenance and Operation: The extended stem design allows the valve to be easily operated even when buried, minimizing the need for excavation and reducing maintenance costs.

Cost-effective maintenance: Thanks to its all-welded construction and corrosion-resistant materials, the valve reduces wear and tear, which reduces maintenance requirements and cuts costs.

Suitable for high pressure and medium to high temperature systems: The valve is capable of handling PN25 (150LB) pressure, making it ideal for high pressure systems such as city gas or heating networks.