AIX BOILER Lined Plastic Valves | Original Factory | Strong Corrosion Resistant PTFE/PO/PP Lined Valves | Industrial Customization

Lined plastic valves are anti-corrosion valves designed for highly corrosive, high-cleanliness and easy-crystallizing media. The core principle is a **composite structure of metal substrate + engineering plastic lining**: using cast steel, ductile iron or stainless steel as the pressure-bearing substrate, and through processes such as rotational molding, compression molding and vacuum impregnation, a uniform layer of corrosion-resistant engineering plastics including PTFE (F4), FEP (F46), PFA, PO and PP is lined on the flow passage, disc and seat surfaces. This forms a complete anti-corrosion isolation layer, retaining the mechanical strength, pressure resistance and structural rigidity of the metal body while utilizing the chemical inertness, low friction and non-stick properties of the plastic lining to completely isolate corrosive media from the metal substrate, eliminating corrosion, leakage, medium pollution and material residue. Designed and manufactured in strict accordance with GB/T 12235, GB/T 25025, GB/T 13927, HG/T 3704 and HG/T 21567 standards, they are ideal choices for corrosive media control in chemical, pharmaceutical, environmental protection, food and other industries.

1. Strength of AIX BOILER Export-Oriented Lined Plastic Valves – Original Factory

AIX BOILER is a modern original factory specializing in R&D, production and export of anti-corrosion valves, glass-lined equipment and lined plastic pipes. With over 10 years of deep cultivation in lined plastic valves, we own standardized lined plastic production workshops, CNC precision processing centers, high-temperature rotational molding equipment, spark leak detection and pressure testing laboratories. We master core lining processes such as vacuum impregnation, high-pressure compression molding, high-temperature sintering and stress relief, independently controlling the entire process from valve body casting, sandblasting, lining molding, precision assembly to full inspection. No middlemen, no outsourcing, ensuring controllable quality, optimal cost and stable delivery for each valve.

Our products have passed CE, ISO9001, FDA, SGS and other international certifications, adaptable to global working conditions with different medium corrosion, temperature, pressure and connection standards. We support multi-language labels and manual customization, exporting to over 60 countries in Southeast Asia, Middle East, Africa, Europe, South America and other regions. Cumulative exports of lined plastic valves exceed 12,000 units, serving global customers in chemical, pharmaceutical, food, environmental protection and other industries with unanimous recognition. As an original factory, we provide full OEM/ODM customization services, from valve type (ball, globe, gate, butterfly, discharge valve), nominal diameter, pressure rating, lining material, drive mode (manual, worm gear, pneumatic, electric) to connection standard (HG/ANSI/DIN), all can be customized according to needs, providing customers with one-stop lined plastic anti-corrosion valve solutions.

2. Core Technical Parameter Table of AIX Lined Plastic Valves

3. Product Structure & Core Advantages

1. Extreme Corrosion Resistance for All Harsh Conditions
Lining layers use high-performance engineering plastics such as PTFE, FEP, PFA, PO and PP with extremely strong chemical stability: PTFE resists all strong acids, alkalis, oxidants and organic solvents except molten alkali metals and fluorine; FEP and PFA have higher temperature resistance, better fluidity and smoother surfaces; PO and PP offer cost-effective performance for dilute acids, wastewater and neutral media. Corrosion resistance far exceeds 304/316L stainless steel, with no metal ion precipitation and no medium pollution, fully complying with food and pharmaceutical GMP clean standards, completely solving industry pain points of ordinary metal valves: easy corrosion, short service life and material pollution.

2. Full Lining Without Dead Corners, Low Flow Resistance & Easy Cleaning
Adopts full-flow passage lining for valve body, disc and seat, with smooth inner cavity, no bosses, no dead corners, non-stick, non-scaling and non-crystallizing. Low fluid resistance, large flow rate and high conveying efficiency, facilitating valve cleaning and sterilization. Especially suitable for controlling high-viscosity, easy-crystallizing and easy-adhesive media (such as dyes, slurries, pharmaceutical intermediates, food materials), avoiding valve blockage, material residue and waste.

3. Reliable Zero Leakage, Light Operation & Long Service Life
Seat and sealing surface are integrally formed with the same lining material, with tight fit, good elasticity and self-lubrication, achieving zero medium leakage. The lining layer has extremely low friction coefficient, small opening/closing torque, effortless manual operation, fast response of pneumatic/electric drive and remote automatic control, adapting to automated production lines. The lining layer is wear-resistant, erosion-resistant and anti-aging, with a service life of 8-12 years under normal use, 3-5 times that of ordinary metal valves, greatly reducing replacement and maintenance costs.

4. Sturdy Structure, Stable Pressure Resistance & Wide Adaptability
Valve body uses high-quality metal materials such as cast steel, ductile iron and stainless steel with high mechanical strength and strong pressure resistance (up to 4.0MPa), able to withstand pipeline system pressure fluctuations and external impacts. The lining layer is firmly bonded to the metal substrate (vacuum impregnation/high-pressure compression molding), no cracking, peeling or blistering, able to withstand frequent temperature fluctuations and thermal shock. Long-term stable working temperature: -100℃~250℃, adapting to complex working conditions such as high temperature, low temperature, high pressure and outdoor installation.

5. Complete Types, Standardized Connections & Easy Installation
Provides a full range of lined plastic valves: ball, globe, gate, butterfly, discharge and check valves, meeting different control requirements such as shut-off, regulation, discharge and check. Connection methods include flange and wafer, strictly following international standards such as HG20592, ANSI B16.5, DIN2501. The flange sealing surface is precision-ground, matched with PTFE anti-corrosion gaskets, ensuring reliable sealing and easy installation/disassembly without special tools, suitable for various chemical, pharmaceutical, food and environmental protection pipeline systems.

6. Original Factory Customization, Global Adaptation & Controllable Quality
As an original factory, AIX can customize valve type, diameter, pressure, lining material, drive mode and connection standard according to customer working conditions (medium, temperature, pressure, installation environment, control requirements), supporting special reinforced lining processes (improving temperature/pressure/erosion resistance). We provide complete export qualifications, customs declaration documents and multi-language manuals, strictly producing in accordance with international standards. Each valve undergoes appearance inspection, lining thickness detection, spark leak detection, hydrostatic strength test (1.5 times nominal pressure), air tightness test and seal leakage test before delivery, 100% qualified before leaving the factory, with full quality traceability.

4. Full Export Service System of AIX Lined Plastic Valves

1. Professional Customization: Provide customized solutions and drawings based on customer working condition parameters, pipeline layout and control requirements, determining valve type, diameter, pressure, lining material, drive mode and connection standard;
2. Complete Qualifications: Provide CE, ISO, FDA, SGS, material reports, lining test reports, hydrostatic test reports, factory certificates and other complete documents to meet import supervision and customs clearance requirements of various countries;
3. Strict Inspection: Full-process inspection for each valve to ensure the lining layer is free of pinholes, cracks and peeling, with qualified pressure, sealing and corrosion resistance;
4. Professional Packaging: Shockproof foam + solid wood box packaging with separate protection for lining surfaces, suitable for sea, land and air transportation to avoid collision and damage during transit;
5. Global After-Sales: 7×24-hour English technical support, remote guidance for installation, commissioning and maintenance, lifetime supply of seals and wearing parts and repair services to solve customer worries.

5. Executive Standards & Authoritative Certifications

Chinese Standards: GB/T 12235, GB/T 13927, HG/T 3704, HG/T 21567, GB/T 25025
International Standards: ANSI B16.5, DIN 28008, ISO 4626, API 6D
Export Certifications: CE, ISO9001, FDA, SGS (available on request)

6. Manufacturing Process & Quality Compliance

AIX lined plastic valves adopt lean manufacturing from the original factory with strict full-process control: high-quality metal valve body casting/forging → CNC precision processing of flow passage and flanges → sandblasting (Sa2.5 grade, completely removing oxide scale and impurities) → surface activation treatment → vacuum impregnation/high-pressure compression molding/high-temperature rotational molding (5-9 times to ensure tight fusion of lining and substrate, no bubbles or pinholes) → cooling stress relief → precision grinding of sealing surfaces → assembly of drive components → 20kV spark leak detection → hydrostatic strength test (1.5×PN) → air tightness test → seal leakage test → packaging and delivery. The lining layer is uniform and dense, with qualified thickness (1.5-3.0mm) and strong bonding force. Each valve has a unique code for full quality traceability, ensuring compliance with national and international standards, safe, reliable and durable.

7. Application Scenarios & Compatible Equipment

With excellent corrosion resistance, smoothness, sealing performance and long service life, AIX lined plastic valves are widely used in:
- Chemical Industry: Shut-off and regulation of hydrochloric acid, sulfuric acid, nitric acid, phosphoric acid, caustic soda, organic solvents, slurries and corrosive gases;
- Pharmaceutical Industry: Control of pharmaceutical intermediates, APIs, sterile liquids and clean media, complying with GMP standards;
- Food Industry: Control of food fermentation, condiments, acidic beverages, high-temperature materials and food-grade media, complying with food-grade safety;
- Environmental Protection Industry: Sewage treatment, acidic waste liquid, waste gas purification, desulfurization, denitrification and wastewater reuse systems;
- Metallurgical Industry: Control of acidic media in pickling, leaching and wastewater treatment systems;
- Power/Boiler Industry: Control of desulfurization, denitrification, acidic condensate and corrosive steam pipelines.

8. Installation & Operation Notes

1. Installation: Handle with care, prohibit knocking or collision on the lining surface; use PTFE anti-corrosion gaskets for flange connection, tighten bolts diagonally and evenly, prohibit unilateral force to avoid flange deformation and lining cracking; install valves in the same direction as medium flow (globe, gate valves), ball and butterfly valves can be installed arbitrarily;
2. Medium: Select compatible media according to lining material, PTFE/FEP/PFA for strong corrosion, PO/PP for dilute acids and neutral media, prohibit use beyond temperature, pressure and medium range;
3. Operation: Operate manual valves smoothly, prohibit strong knocking and rapid switching; clean pipeline impurities and adjust air/power supply to rated values before pneumatic/electric commissioning to avoid damage to actuators;
4. Maintenance: Regularly (6-12 months) check lining integrity and sealing performance, replace aging seals in time; prohibit scraping lining surfaces with metal tools;
5. Storage: Seal both ends of uninstalled valves and store in a dry and ventilated place to avoid moisture and collision damage to the lining layer.

Choose AIX BOILER lined plastic valves for corrosion-resistant, zero-leakage and long-life anti-corrosion valve solutions. As an original factory, we take quality as the core, customization as the advantage and service as the guarantee. Welcome global customers to contact us and visit our factory for win-win cooperation in the anti-corrosion industry!