Manual 3PCS Threaded End Ball Valve

The core advantage of the Manual 3PCS Threaded End Ball Valve compared to the traditional two-piece design lies in its flexibility. This valve consists of a central valve body and two end caps, secured with high-strength long bolts. This structure allows technicians to quickly disassemble and replace the valve seat, ball, and seals without altering the existing piping layout.

In industries requiring regular cleaning (CIP) and internal inspections, such as food processing, pharmaceutical manufacturing, and fine chemicals, this design significantly reduces downtime.

Technical Specifications

Core Advantages and Technical Features

1. Economical Life Cycle Cost

While the initial purchase price of a three-piece ball valve is slightly higher than that of a single-piece valve, its total life cycle cost is lower.

Online Maintenance: Maintenance time is reduced by approximately 80% compared to ordinary valves.

Component Replacement: The end caps at both ends of the valve body can be replaced individually; in case of accidental damage, the entire valve does not need to be scrapped.

Long-lasting Corrosion Resistance: The 316L material resists chloride ion (Cl-≤200ppm) corrosion, with a design life of up to 15 years.

2. Precise Sealing and Standardized Connections

Our Manual 3PCS Threaded End Ball Valve features threads machined to international standards, ensuring compatibility with various piping systems:

Compliant with ISO 228 (G thread) or ISO 7 (NPT thread) standards.

Precision ball core machining technology ensures zero leakage even at PN25 pressure.

3. Flexible Application Scenarios

This series of valves is widely used in:

Water Treatment: Isolation of main and branch lines in secondary water supply networks.

Industrial Cleaning: Acid and alkali control in brewery CIP systems.

Energy Systems: Flow regulation in district heating systems.

Special Conditions: Backwash control in seawater desalination pretreatment units.

Why Choose Zhongguan Valve?

Zhongguan Valve Manufacture Co., Ltd. boasts over 19 years of experience in valve manufacturing and supply. We have established two major production bases in Tianjin and Wenzhou, fully integrating the advantages of our supply chain across the north and south:

North-South Integration Advantage: The northern base (Tianjin) focuses on supplying cast iron and large hydraulic valves; the southern base (Wenzhou Oubei) focuses on the R&D and production of industrial-grade ball valves and butterfly valves made of stainless steel and cast steel.

Professional Technical Expertise: Our core team has over 20 years of experience in the valve industry and can provide technical consultation based on customers' specific pressure, media, and environmental requirements.

Comprehensive Production Equipment: We possess our own pressure testing machine, valve seat precision installation equipment, bushing installation machine, and automated marking system, ensuring that every Manual 3PCS Threaded End Ball Valve undergoes rigorous testing before leaving the factory.

Frequently Asked Questions (FAQ)

Q: What are the differences in installation between three-piece ball valves and two-piece ball valves? 

A: When replacing the internal seal of a two-piece ball valve, the entire valve must be unscrewed from the pipeline. However, with the Manual 3PCS Threaded End Ball Valve, only the connecting bolts need to be loosened to remove the middle valve body; the threaded connections at both ends of the pipeline require no hot work or disassembly.

Q: Can your 316L material be used in high-salinity environments? 

A: 316L has excellent pitting corrosion resistance and is suitable for environments with chloride ion concentrations ≤200ppm. For higher concentrations in seawater environments, we recommend contacting our sales team for solutions in ultra-austenitic stainless steel or duplex stainless steel.

Q: Does the valve have a locking device? 

A: Yes, our three-piece ball valve handles are typically equipped with a locking hole to prevent accidental operation during maintenance or in critical positions.