Reduced Bore JIS 5K PTFE Seat Floating Ball Valve

Core product positioning

A floating ball valve that strictly adheres to Japanese industrial standards (JIS), featuring a reduced flow path design and a polytetrafluoroethylene (PTFE) soft valve seat. While ensuring reliable sealing, it achieves excellent economic performance and is an ideal choice for control and shut-off in low-pressure pipeline systems with corrosive media.

Details of technical specifications

Core design features

1. JIS 5K flange standard

Standard compliance: The key dimensions such as the outer diameter of the flange, the center distance of the bolt holes, and the thickness fully comply with the JIS B 2220 standard, ensuring a perfect connection with pipelines and equipment in Japan, South Korea, and Southeast Asia that use the JIS standard.

Pressure rating: The 5K pressure rating is suitable for medium and low pressure pipeline systems, with an upper limit of working pressure of approximately 9.8 bar (1.0 MPa) at normal temperature.

2. Design of reduced runoff channels

Economical and efficient: The diameter of the spherical channel is smaller than the nominal diameter of the pipeline, making the valve structure more compact and lighter in weight, significantly reducing manufacturing costs and having extremely high price competitiveness.

Low-torque operation: The smaller sphere means that less operating torque is required during the opening and closing process, making manual operation convenient and also reducing the demand for actuator driving force.

Application consideration: It is suitable for application scenarios that allow for a certain pressure drop and are cost-sensitive.

3. PTFE valve seat sealing

Outstanding sealing performance: PTFE material features an extremely low coefficient of friction and excellent plasticity, enabling bubble-level sealing (typically up to ANSI B16.104 Class IV or higher), and achieving nearly zero leakage.

Wide chemical compatibility: It has excellent resistance to the vast majority of strong acids, strong alkalis, solvents and corrosive chemicals, making it an ideal choice for handling corrosive media.

Self-cleaning property: The smooth non-sticky surface is not prone to adhering media and has a certain self-cleaning ability.

4. Floating ball structure

Automatic pressure-assisted sealing: Under the action of medium pressure, the ball undergoes a slight displacement and is tightly pressed against the valve seat at the outlet end, forming a self-tightening seal. The higher the system pressure, the greater the sealing specific pressure and the more reliable the sealing effect.

Bidirectional sealing: In design, it usually enables bidirectional blocking and sealing, with no restrictions on the installation direction.

Simple structure: Compared with fixed ball valves, it has a simpler structure and is more convenient to maintain.

Performance and Advantages

High cost performance: The reduced diameter design and standardized production bring significant cost advantages.

Outstanding corrosion resistance: The stainless steel valve body combined with PTFE valve seat can withstand a wide range of corrosive media.

Easy operation and reliable sealing: The combination of low torque and the excellent properties of PTFE ensures the reliable operation of the valve throughout its long service life.

Standard compatibility and interchangeability: The JIS standard ensures installation convenience and spare parts interchangeability in specific markets.

Safety design: The built-in anti-static device and fireproof design enhance safety in flammable and explosive working conditions.

Typical application fields

This valve is widely used in medium and low pressure corrosive medium pipelines in the following industries:

Chemical Engineering and Petrochemicals: Transportation of various acids, alkalis, solvents and other chemicals.

Water treatment and environmental protection: Sewage treatment, pure water preparation, chemical dosing systems.

Semiconductors and Electronics: Ultra-pure water Systems and chemical delivery systems.

Papermaking and pulp: pharmaceutical solutions, bleaching agents and pulp pipelines.

Ship and Ocean Engineering: Seawater pipelines, ballast water, bilge water systems.

General industry: cooling water, compressed air and other public utility systems.

Selection Guide

Please confirm the following parameters when selecting the model

Nominal diameter: DN15 - DN300 (or corresponding inch specifications).

Valve body material: Select CF8(304)/CF8M(316)/CF3(304L)/CF3M(316L) based on the corrosiveness of the medium.

Operation mode: Manual handle, gearbox, pneumatic or electric actuator.

Optional configurations: Extended valve cover (for insulation or low temperature), locking device, microswitch, etc.

Summary

The JIS 5K PTFE valve seat floating ball valve with reduced diameter is a classic product that strikes a perfect balance among cost, performance and standard compliance. It has become a reliable and economical choice for fluid control in many industrial fields, especially in the Asian market, thanks to the wide recognition of JIS standards, the economic benefits of reduced diameter design, and the outstanding corrosion resistance and sealing performance of PTFE seals.