PCTFE Seat Epoxy Coated Paint Chemical Ball Valve

Core product positioning

This high-performance ball valve is specially designed for highly corrosive chemical media. It adopts a dual protection technology of PCTFE (polychlorotrifluoroethylene) valve seat and special epoxy resin coating. While maintaining excellent chemical stability, it provides outstanding anti-corrosion and anti-permeation protection, making it an ideal choice for harsh working conditions such as strong acids, strong alkalis and organic solvents.

Details of technical specifications

Core design features

1. PCTFE valve seat system

Outstanding chemical stability

Resistant to almost all concentrations of acid, alkali and salt solutions

It has excellent resistance to oxidizing media such as concentrated nitric acid and concentrated sulfuric acid

Its resistance to organic solvents is superior to that of PTFE

Extremely low permeability

The molecular structure is dense, and the permeability of gases and liquids is extremely low

Effectively prevent valve body corrosion caused by medium penetration

Excellent mechanical properties

The compressive strength is ≥70MPa, which is 2 to 3 times that of PTFE

High hardness, good resistance to cold flow, and stable long-term sealing performance

2. Special epoxy coating protection

Complete protection system

The inner and outer surfaces of the valve body are fully protected by epoxy coating

The coating thickness is uniform, with no dead corners covered

Passed the ISO 12944 C4-M class corrosion environment certification

Excellent adhesion

The surface has undergone sandblasting treatment, with a roughness of Ra 50-85μm

The adhesion of the coating meets the ISO 2409 standard

Chemical resistance

Resistant to chemical media with pH ranging from 3 to 11

Salt spray resistance ≥1000 hours

3. Specialized sealing design

Bidirectional sealing structure: It adopts a lip seal design to achieve reliable bidirectional sealing

Fire safety design: After the soft seal fails, a metal-to-metal secondary seal is formed

Anti-static design: Ensure a static electricity path between the ball and the valve body

Detailed explanation of performance advantages

Corrosion resistance performance

Comprehensive protection: PCTFE valve seat + epoxy coating provides dual protection

Economic solution: Carbon steel valve body + coating achieves corrosion resistance close to that of stainless steel

Long-life design: Service life is increased by 3 to 5 times in corrosive media

Sealing reliability

Zero leakage seal: Meets the API 598 sealing standard

Wide temperature range application: Maintains stable sealing within the range of -40℃ to +130℃

Long-life valve seat: PCTFE material has excellent anti-aging performance

Operational performance

Low-friction design: The low friction coefficient of PCTFE ensures stable operating torque

Anti-lock structure: Anti-jamming design to avoid operational difficulties after long-term inactivity

Precise control: The switch position is accurate, supporting precise flow regulation

Typical application fields

Chemical process

Chlor-alkali industry: Chlorine gas, hydrochloric acid media

Pesticide production: organic solvents, acid and alkali media

Dye intermediates: highly corrosive chemical raw materials

Pharmaceutical industry

Active pharmaceutical ingredient production: Feed control for reaction vessels

Solvent recovery: Organic solvent conveying system

Clean pipeline: Control of high-purity media

Electronic chemicals

Wet electronic chemicals: High-purity acid and alkali transportation

Photovoltaic industry: Control of silicon wafer cleaning solution

Semiconductor Manufacturing: Ultra-pure Water System

Environmental protection project

Wastewater treatment: acid-base neutralization system

Waste gas treatment: Absorption tower circulation system

Hazardous waste treatment: Chemical collection system

Installation and Maintenance

Installation Precautions

Avoid knocking and scratching the surface of the coating

Install with special tools to prevent coating damage

Check the integrity of the coating before installation

Key points of maintenance

Regular inspection

Coating condition inspection (every 6 months)

Sealing performance inspection

Operating torque monitoring

Preventive maintenance

It is recommended to conduct a comprehensive inspection every two years

Replace the valve seat seal according to the usage conditions

Summary

The PCTFE valve seat epoxy-coated chemical-specific ball valve, through the innovative combination of special material application and surface engineering technology, provides:

Outstanding corrosion resistance: Dual protection of PCTFE valve seat and epoxy coating

Reliable sealing guarantee: Maintain long-term zero leakage under harsh working conditions

Economic usage cost: Achieve stainless steel grade corrosion resistance with a carbon steel base

Wide application adaptability: Covering the vast majority of highly corrosive media

Applicable customer groups: Various enterprises in industries such as chemical engineering, pharmaceuticals, electronics, and environmental protection that handle highly corrosive media.