Model No.: WF-YL11-056
Brand: TechWF
Manufacturer: Wenzhou Weifeng Technology Co., Ltd.
Official Website: www.alvifeng.com
Business Contact: WhatsApp +8618815068623
Core Application Sectors: Heavy Industry | Corrosive Chemical Process Engineering | Precision Agriculture | Marine Anti-Corrosion Systems
1. Product Overview
WF-YL11-056 split PTFE flow sight indicator is a premium full anti-corrosion inline visual pipeline monitor independently engineered by TechWF, exclusively designed for strong acid, strong alkali, solvent and highly corrosive fluid working conditions where metal fittings cannot be applied.
This sight glass adopts high-purity solid PTFE split two-piece housing locked by four stainless steel long through bolts, dual female internal thread inlet/outlet ports, thick transparent borosilicate tubular sight window and anti-corrosion red PPS star impeller. Its fully disassemblable split structure allows complete internal disassembly for sludge and corrosive medium sediment cleaning, while delivering real-time visual inspection of fluid flow velocity, pipeline clogging, medium cut-off and reverse flow. It effectively protects anti-corrosion circulation pumps, high-corrosion chemical reactors, special fertilizer irrigation equipment and marine chemical sewage circulation systems from dry-running, cavitation and irreversible equipment corrosion damage.
Every finished unit undergoes rigorous hydraulic burst pressure testing, strong acid & alkali immersion corrosion testing, four-bolt uniform sealing leakage testing and hot-cold alternating cycle validation before factory shipment, ensuring stable long-cycle continuous operation under strong acid, strong alkali, organic solvent and high-salinity corrosive fluid media worldwide.
2. Premium Technical Specifications
- Body Material: Virgin molded PTFE split housing, full chemical inertness against most strong corrosive media; 304 stainless steel fastening bolts, thick-wall high-pressure borosilicate sight glass
- Connection Standard: BSP / NPT female internal thread, full size range DN15–DN50 customizable
- Sight Window: Thick-wall impact-resistant borosilicate round sight tube, 360° full panoramic viewing without blind spots
- Fastening Structure: Four full-length stainless steel through bolts + four-corner PTFE flange cover plate, uniform clamping force for balanced stable sealing
- Sealing Assembly: PTFE encapsulated FKM composite sealing ring, fully resistant to acid, alkali, organic solvents and brine
- Flow Indicator Core: Reinforced red PPS star multi-blade impeller, chemical corrosion resistant, ultra-sensitive to micro low-volume fluid flow
- Nominal Working Pressure: PN10 standard grade; PN16 reinforced customized version available
- Operating Temperature Range: -20℃ ~ +120℃
- Flow Channel Design: Full straight-through full-bore inner cavity, zero extra pressure drop, no internal flow obstruction or dead zones for corrosive sediment accumulation
- Structural Feature: Complete two-piece split PTFE body, fully openable without pipeline cutting for deep internal cleaning, impeller replacement and corrosive sludge removal
3. Core High-End Industrial Advantages
3.1 Full Virgin PTFE Anti-Corrosion Split Housing
One-piece molded pure PTFE split body features absolute chemical inertness, resisting strong hydrochloric acid, sulfuric acid, nitric acid, sodium hydroxide, organic solvents and all common corrosive fluids that erode stainless steel, brass and other metal materials. Perfectly solves pipeline corrosion failure pain points in harsh chemical production environments.
3.2 Four-Bolt Symmetric Uniform Clamping Sealing
Four symmetrical stainless steel long through bolts evenly distribute compression force on the sight window and composite PTFE seal, eliminating local stress concentration and glass cracking risks under pressure fluctuation. Maintains stable zero-leakage performance during long-term circulation of volatile corrosive media.
3.3 Fully Detachable Split Maintenance Design
Two-piece PTFE housing can be fully disassembled after removing four bolts without cutting pipelines. Technicians can completely extract the impeller and thoroughly clean corrosive sludge, crystal sediment and scale inside the cavity, solving the blockage maintenance difficulty of integrated sight glasses for viscous corrosive chemical media.
3.4 360° Full-Bore Unrestricted Observation Window
Transparent straight borosilicate tube provides unobstructed full-angle observation. Operators can clearly observe impeller rotation speed, suspended solid corrosive impurities and bubbles from any radial mounting angle, timely judging abnormal flow of corrosive medium.
3.5 Zero Pressure Loss Straight Flow Path
No internal protruding throttle structures generate extra pressure loss; original pipeline design flow capacity is fully retained, matching low-loss flow control requirements of fine chemical anti-corrosion production, acid-base waste liquid treatment and marine chemical sewage circulation systems.
3.6 Corrosion-Resistant PPS Star Impeller Indicator
Custom molded PPS star multi-blade impeller maintains stable rotation performance in long-term contact with strong acid and alkali media, accurately identifying low flow, pipeline dry-up and backflow risks to avoid unplanned corrosive medium leakage and production shutdown losses.
3.7 PTFE Composite Anti-Corrosion Sealing System
PTFE wrapped fluororubber composite seal combines FKM elasticity and PTFE chemical resistance, resisting long-term erosion of corrosive solvents, brine and strong acid/alkali without swelling, aging or leakage.
3.8 Low-Maintenance Detachable Anti-Corrosion Construction
All internal components are fully accessible after bolt disassembly for deep cleaning and part replacement; no metal wetted parts to corrode, drastically cutting maintenance labor and replacement costs for high-corrosion chemical and marine engineering projects.
4. Global Cross-Industry Application Scenarios
Heavy Anti-Corrosion Chemical Manufacturing
Strong acid & alkali inline conveyance pipelines, chemical waste liquid circulation mains, electroplating bath circulation piping, pesticide & pharmaceutical corrosive solvent delivery lines; split disassembly design facilitates regular crystal sludge cleaning to avoid pipeline blockage and corrosive medium leakage accidents.
New Energy & Fine Chemical Process Engineering
Lithium battery electrolyte circulation pipelines, etching solution conveying tubing, laboratory strong corrosive reagent circulation lines; full PTFE wetted surface avoids metal ion contamination of high-purity chemical products.
Special Corrosive Precision Agriculture
Fertilizer concentrate, acidic pesticide inline circulation tubing, chemical water treatment acid-base dosing pipelines; anti-corrosion PTFE material resists long-term erosion of acidic and alkaline agricultural chemical media.
Offshore & Marine Anti-Corrosion Engineering
Marine chemical sewage circulation piping, desalination acid cleaning auxiliary lines, aquaculture brine dosing pipelines; PTFE housing withstands high-salinity seawater and corrosive biocide media without rusting or degradation.
Supplementary Application Fields
PCB etching equipment circulation pipelines, laboratory strong corrosive fluid test lines, waste water neutralization treatment equipment, food-grade strong acid cleaning fluid transfer pipelines.
5. Customized Engineering Support Service
- Material Customization: Virgin PTFE body, optional PFA upgrade for higher temperature resistance; 316L stainless steel bolt upgrade
- Thread Customization: BSP, NPT, G, Rc and non-standard special internal thread sizes
- Pressure Grade Customization: Standard PN10, PN16 high-pressure reinforced bespoke model
- Sealing Material Matching: PTFE-FKM composite for acid/alkali/solvent, pure PTFE seal for ultra-pure corrosive media
- Brand & Packaging Customization: Laser engraved customer LOGO on PTFE flange cover, anti-collision neutral export wooden case packaging; complete anti-corrosion material test reports provided for tender documentation
- Caliber Customization: DN15, DN20, DN25, DN32, DN40, DN50 and special non-standard pipe diameters
6. Factory Premium Quality Control Standards
All WF-YL11 series PTFE anti-corrosion flow sight indicators implement mandatory 100% full inspection prior to shipment. Standard factory testing scope includes hydraulic burst pressure testing, four-bolt uniform sealing leakage testing, strong acid & alkali long-term immersion corrosion testing, impeller low-flow sensitivity testing and high-low temperature alternating cycle validation.
Complete PTFE material certification, chemical corrosion resistance test reports and pressure inspection documents can be supplied to support global chemical engineering tender reviews, marine anti-corrosion project audits and laboratory safety compliance assessments.
Global Business Cooperation Contact
Manufacturer: Wenzhou Weifeng Technology Co., Ltd.
Official Website: www.alvifeng.com
