WF-BB41-205

1. Product Overview

2. Premium Technical Specifications

• Body Material: 304 / 316 / 316L stainless steel precision casting, matte passivated anti-rust finish, food & marine sanitary compliant
• Connection Standard: Full-face flanges complying with GB / ANSI / DIN, sizes DN25~DN200 customizable
• Sight Window: Thick high-pressure resistant round borosilicate top glass, 270° vertical full panoramic viewing without blind spots
• Internal Indicator: Weighted swing paddle with printed quantitative scale dial, proportional deflection corresponding to flow velocity
• Sealing Structure: Double-layer EPDM / FKM composite O-rings; EPDM for water & edible media, FKM for solvent & brine
• Rated Pressure: PN16 standard; PN25 marine reinforced version optional
• Operating Temperature: -20℃ ~ +180℃
• Flow Channel: Full straight full-bore cavity, zero additional pressure loss, smooth inner wall to reduce residue adhesion
• Structure Feature: Integrated flanged T-cylinder, snap-on top glass cover, fully disassemblable for paddle cleaning without pipeline cutting

3. Core Competitive Advantages

1. Integral Cast Anti-Corrosion Stainless Steel Flanged T-Body
   Seamless precision casting eliminates internal dead zones, thickened cylinder wall delivers outstanding resistance to pipeline vibration and water hammer. 316L upgrade provides superior salt fog resistance for coastal and offshore flanged piping.
2. Universal Standard Flange Bolt-On Installation
   Symmetrical full-size standard flanges match all industrial flanged pipe fittings, supporting bidirectional installation without welding or thread adapters, shortening construction cycles for large-bore flanged trunk line projects.
3. Quantitative Calibrated Swing Paddle Visual Feedback
   Unlike basic impeller sight glasses, the weighted swing paddle with printed scale shows approximate flow volume, allowing operators to judge flow magnitude visually instead of merely confirming flow on/off.
4. Zero Pressure Loss Full-Bore Design
   No protruding flow obstruction inside, original pipeline flow capacity fully retained, ideal for low-pressure-loss large circulation flanged loops.
5. Chemical-Inert Swing Paddle Assembly
   Stainless steel + PPS composite paddle resists acid, alkali and saltwater erosion, maintaining stable swing performance under long-term medium contact.
6. Snap-On Low-Maintenance Top Cover
   Threaded lock top cover can be opened without multiple bolts, reducing maintenance downtime; the whole paddle assembly can be lifted out for deep flushing of limescale, fertilizer and chemical sludge.
7. Compact Flanged Integrated Layout
   One-piece flanged T-cylinder minimizes overall installation length, saving linear layout space for densely arranged parallel flanged main pipelines in chemical workshops and marine engine rooms.
8. Dual Redundant Anti-Aging Sealing System
   Dual elastic sealing rings prevent medium leakage under frequent temperature and pressure fluctuations, extending service life for continuous 24-hour production lines.

4. Global Application Scenarios

• Sanitary Food & Pharmaceutical Industry: Purified water flanged trunk circulation, beverage & dairy large transfer pipelines, cosmetic raw material flanged delivery lines; stainless steel meets international food contact hygiene standards.
• Fine Corrosive Chemical Industry: Weak acid/alkali solvent flanged trunk pipelines, lithium battery electrolyte circulation lines, electroplating bath flanged circulation mains; inert wetted surface avoids metal ion contamination of high-purity chemicals.
• Large-Scale Precision Agriculture: Regional farm flanged trunk water supply pipelines, greenhouse main nutrient solution circulation flanged lines, centralized large drip irrigation inspection flanged mains; anti-corrosion stainless steel withstands long-term agricultural chemical erosion.
• Offshore & Marine Anti-Corrosion Engineering: Ship engine room flanged main cooling circulation piping, offshore platform desalination auxiliary flanged trunk lines, marine aquaculture high-salinity brine recirculation flanged pipelines; 316L stainless steel resists ocean salt fog and seawater splash corrosion.
• Supplementary Auxiliary Fields: Industrial large pure water treatment flanged main equipment, commercial large solar thermal circulation flanged trunk pipelines, fire protection main water supply flanged lines, food-grade clean fluid transfer flanged trunk pipelines.

5. Customization Support

1. Material: Standard 304 stainless steel, upgrade to 316 / 316L marine high anti-corrosion sanitary grade
2. Flange Standard: Custom GB, ANSI, DIN flange pressure class & dimension
3. Pressure Grade: PN16 standard, PN25 marine high-pressure reinforced variant, PN40 ultra-high pressure bespoke model
4. Sealing Material: Food-grade EPDM for water & edible media, FKM fluororubber upgrade for acid, alkali and organic solvent transportation
5. Brand & Packaging: Laser engrave customer LOGO on cylinder body, export neutral anti-collision wooden case packaging; complete material & pressure test certificates for tender documentation
6. Caliber Customization: DN25, DN40, DN50, DN65, DN80, DN100 up to DN200 non-standard sizes available

6. Factory Quality Control

Contact Information