PFA Swing Check Valve (DIN-ANSI)

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Reliable Backflow Protection for Corrosive and High-Pressure Systems

The Vibron9 Swing Check Valve combines a pressure-resistant cast-metal housing with a thick-walled, mechanically anchored PFA lining (3–5 mm) to prevent backflow of aggressive liquids, gases, and vapors. Its center-guided ball design closes automatically in vertical and horizontal service, requiring no springs or external actuation. With a vacuum-proof seal and Class D leakage control (<0.1 %), it offers reliable, low-maintenance performance where stainless steel or plastics would fail.

Beyond its core non-return functionality, Vibron9’s PFA lining ensures extremely low friction and near-zero permeation, making it suitable for fluids from sulfuric acid to slurry suspensions. Optional non-adhesive coatings and retainer rings further enhance its adaptability. Whether you need ultra-pure media integrity or rugged durability in high-pressure chemical loops, Vibron9 delivers both safety and longevity.

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Proven Performance

Industry Applications

PFA (perfluoroalkoxy) is prized for its outstanding corrosion resistance, wide temperature tolerance, and non-stick surface—essential wherever fluid purity, safety, and uptime cannot be compromised. The Vibron9 leverages these properties to outperform conventional non-lined or metal check valves:

Corrosion Resistance: Handles strong acids, bases, solvents, and permeating agents without degradation.

Thermal Stability: Operates reliably from –40 °C to +150 °C, covering most industrial process ranges.

Non-Stick Surface: Prevents buildup of viscous or sticky media, ensuring prompt valve action.

Vacuum-Tight Seal: Mechanical clamping of the PFA liner guarantees leak-free performance even under negative pressure.

These characteristics make Vibron9 the go-to check valve for any application demanding both backflow prevention and stringent chemical compatibility.

Looking for application guidance?

Swing Check Valve Tabular Overview

Parameter Value
Name Vibron9
Design Norm DIN | ANSI
Size DN 40-400 | NPS 1 ½-16
Flange Dimensions DIN EN 1092-1, PN 16 | ANSI B 16.5 Cl. 150/B16.42
Face-Face-Dimensions DIN EN 558-1 Row 20, ISO 5752 | API 609/BS 5155
Lining Options PFA Lining 3mm - 5mm thickness), PFA Conducting
Body Materials 1.0619 or 1.4308/1.4408/1.4409 | A216/WCB,CF8/CF8M/CF3M
Pressure Range 0.1 mbar vacuum to 16 bar
Temperature Range -40°C up to +150°C
Leakage Rate Leakage Rate D
Custom Options PTFE solid retainer ring
Quality Control Body 15bar, Back Seat 2bar, Spark Test 15kV DC
NaN -Infinity

Find all our Swing Check Valves & Request a Quote

Filter the product grid below by size, lining, and body material to find your ideal product. Once selected, add it to your cart to request a free, non-binding quote—adding to your cart does not commit you to a purchase. We’ll promptly provide pricing and estimated delivery times.

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19 Produkte

Technical Specifications

Size A2 B (mm) C (mm) D (mm) E (mm) Inner Pipe Min Inner Pipe Max Opening Max
DN 40 33 mm 20 mm 35 mm 95 mm 70 mm 35 mm 46 mm 52°
DN 50 43 mm 30 mm 52 mm 110 mm 90 mm 46 mm 56 mm 52°
DN 80 46 mm 42 mm 64 mm 142 mm 124 mm 73 mm 82 mm 52°
DN 100 52 mm 65 mm 80 mm 180 mm 152 mm 95 mm 100 mm 60°
DN 150 56 mm 111 mm 128 mm 295 mm 260 mm 192 mm 195 mm 60°
DN 250 68 mm 184 mm 224 mm 348 mm 317 mm 242 mm 260 mm 52°
DN 300 78 mm 232 mm 272 mm 398 mm 367 mm 292 mm 310 mm 52°
DN 350 92 mm 252 mm 297 mm 426 mm 397 mm 315 mm 330 mm 48°
DN 400 102 mm 327 mm 370 mm 510 mm 470 mm 380 mm 390 mm 45°
Size A2 B (mm) C (mm) D (mm) E (mm) Inner Pipe Min Inner Pipe Max Opening Max
NPS 1 1/2" 33 mm 20 mm 35 mm 95 mm 70 mm 35 mm 46 mm 52°
NPS 2" 43 mm 30 mm 52 mm 110 mm 90 mm 46 mm 56 mm 52°
NPS 3" 46 mm 42 mm 64 mm 142 mm 124 mm 73 mm 82 mm 52°
NPS 4" 52 mm 65 mm 80 mm 180 mm 152 mm 95 mm 100 mm 60°
NPS 6" 56 mm 111 mm 128 mm 207 mm 145 mm 150 mm 150 mm 60°
NPS 8" 60 mm 133 mm 175 mm 295 mm 260 mm 192 mm 195 mm 60°
NPS 10" 68 mm 184 mm 224 mm 348 mm 317 mm 242 mm 260 mm 52°
NPS 12" 78 mm 232 mm 272 mm 298 mm 267 mm 292 mm 310 mm 52°
NPS 14" 92 mm 252 mm 297 mm 426 mm 397 mm 315 mm 330 mm 48°
NPS 16" 102 mm 327 mm 370 mm 510 mm 470 mm 380 mm 390 mm 45°
Pos. Item Material
1 Lined Body WCB, CF8 - PFA Lined
2 Disc WCB, CF8 - PFA Lined
3 Eye Bolt Stainless Steel

P-T-Diagram for the Swing Check Valve

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