Split Body Fully PTFE Lined Butterfly Valve

The Split Body Fully PTFE Lined Butterfly Valve by Zhongguan Valve is a premier, high-performance fluid control solution engineered specifically for the world's most challenging industrial environments. Combining advanced structural innovation with elite material science, this flagship valve features a premium-grade, high-density polytetrafluoroethylene (PTFE) lining that provides an impenetrable shield against extreme chemical corrosion, abrasive wear, and thermal instability.

Uncompromising Full Corrosion Protection

The valve body internally and externally, along with the disc core, is completely encapsulated with heavy-duty polytetrafluoroethylene (PTFE). This creates an impenetrable, non-reactive barrier against strong acids, concentrated alkalis, chlorine, and highly reactive organic solvents. The ultra-low friction coefficient of PTFE minimizes operational torque requirements, prevents media accumulation, and reduces abrasive erosion from suspended particles.

The Engineering Advantage of the Split-Body Design

The valve features a unique detachable upper/lower or left/right split valve body, securely clamped by high-tensile flange bolts.

• In-Line Maintenance Without Disassembly: This split-type structure allows maintenance teams to inspect, service, or replace internal wear components (such as the PTFE valve seat and encapsulated disc) without completely disassembling the structural pipeline system. Simply loosen the body connecting bolts to separate the valve body.

• Minimized Downtime and Labor Costs: It simplifies maintenance in tight spaces, lowers labor costs, and significantly improves system operational efficiency.

• Seamless Pipeline Retrofitting: The split configuration simplifies adding or swapping valves in existing pipeline infrastructure during technical engineering renovations.

  
  

Technical Specifications and Material Standards

Parameter	Specification Details
Brand / Manufacturer	Zhejiang Zhongguan Valve Manufacture Co., Ltd.
Nominal Diameter Range	DN40 to DN1600 (Oversized custom models up to DN2400 available upon request)
Pressure Rating	PN6 / PN10 / PN16 / Class 150
Body Design	Two-piece split body (Upper/Lower or Left/Right split alignment)
Lining & Seat Material	Premium Virgin PTFE / PFA / High-Temperature FEP
Base Body Material	Ductile Iron (GGG40/50), Carbon Steel (WCB), Stainless Steel (CF8, CF8M)
Disc Configuration	PTFE/PFA Fully Encapsulated Disc, SS316, Hastelloy, Duplex Steel Core
Connection Standard	Wafer, Lug, U-Section, Flanged Ends (Fully compatible with ASME, DIN, JIS, BS)
Actuator Compatibility	Manual Anglo Lever, Worm Gearbox, Pneumatic Actuator, Electric Actuator

Target Application Fields

Our split body fully PTFE lined butterfly valves serve as safety-critical components for precise throttling and absolute isolation across diverse high-purity and hazardous processing lines:

• Chemical and Petrochemical Processing: Reliable management of concentrated sulfuric acid, hydrochloric acid, caustic soda, and highly volatile chemical reagents while ensuring absolute process safety.

• Pharmaceutical and Biotech Manufacturing: Compliant, inert, and non-contaminating surface designs that maintain sterile conditions and safely withstand aggressive Clean-In-Place (CIP) and Sterilize-In-Place (SIP) chemical treatments.

• Food and Beverage Production: Flavor-neutral, non-toxic PTFE lining components that prevent batch contamination and comply with strict sanitary standards.

• Industrial Water Treatment and Desalination: Highly stable control over acidic or alkaline water flows, chemical dosing lines, and high-salinity brackish water reclamation networks.

  
  

Customized OEM/ODM Services and Quality Compliance

At Zhongguan Valve, we understand that unique working conditions demand tailored solutions. We provide comprehensive, professional OEM and ODM customization services to fulfill targeted engineering specifications:

• Material Configuration: Custom options for special alloy disc cores (such as Hastelloy or Monel for elite chemical processing) or custom ultra-pure PFA linings for semiconductor-grade fluids.

• Dimension and Actuation Matching: Customized top-flange configurations according to ISO 5211 for seamless, direct integration with your existing automated pneumatic or electric actuators.

• Private Labeling and Branding: Laser-etched nameplates, custom color coatings, and proprietary casting branding tailored for international valve distributors.

Rigorous Quality Assurance

Every single fully-lined valve undergoes strict manufacturing inspection before leaving the factory floor. This includes a high-voltage spark test to ensure zero micro-porosity or pinholes in the PTFE lining layer, followed by standard hydrostatic shell and seat pressure testing. Our production processes are fully certified under ISO 9001, CE Directive, and API standards, giving international procurement managers complete field reliability.

Export Packaging, Shipping, and After-Sales Logistics

Export-Standard Protective Packaging

To prevent any transport damage, friction scuffs, or contamination of the inner PTFE lining, all valves are fitted with protective plastic end caps, vacuum-wrapped, and securely anchored within heavy-duty, IPPC-certified fumigation-free seaworthy wooden crates. Close proximity to major maritime ports (Ningbo and Shanghai) ensures rapid, predictable shipping transit across all ocean, air, and rail freight channels.

Comprehensive After-Sales Support

• 18-Month Warranty: Full quality backing covering all mechanical and sealing components under normal operating conditions from the date of shipment.

• 24/7 Technical Response: Our professional applications team responds within 24 hours to assist international clients with installation guidelines, torque calculations, and automated actuator calibration.

• Lifecycle Spares Availability: Original replacement seals, PTFE seats, and stems are kept permanently in inventory to guarantee rapid global dispatch and minimize client operational interruptions.

Send Inquiry

Ready to upgrade your system's corrosion defense? Contact our sales engineers today for competitive pricing, customized material configurations, or technical catalog requests.