PFA Ball Check Valve (DIN-ANSI)

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Reliable Non-Return Protection for Corrosive Media Handling

The Prohibron9 Ball Check Valve offers secure, maintenance-friendly backflow protection for pipelines transporting corrosive, pure, or vaporous media. Engineered with a virgin PFA lining, it provides superior chemical resistance, minimal permeation, and vacuum-tight sealing. Its pressure-resistant metal body ensures durability in high-pressure systems, while the valve’s center-guided ball design allows automatic closing in both vertical and horizontal installations (with defined minimum flow conditions).

With only one moving part and no need for external actuation, the Prohibron9 delivers long service life with minimal maintenance. Optional non-stick linings and custom coatings further enhance adaptability, making it the optimal solution where safety, cleanliness, and reliability are essential. The Prohibron9 stands as a key component in aggressive media systems where conventional materials like stainless steel or plastics fall short.

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Proven Performance

Industry Applications

PFA-lined components are essential in industries that handle aggressive or high-purity fluids. Thanks to PFA’s exceptional chemical resistance, the Prohibron9 can be used with strong acids, bases, solvents, and even permeating agents without degrading. Its high thermal stability, non-stick surface, and low permeability enable safe and efficient operation even in high-temperature and pressure conditions, reducing product contamination and material wear.

These properties make PFA-lined ball check valves especially suitable for industries where fluid purity, corrosion resistance, and low maintenance are vital. From chemical plants to pharmaceutical production, the Prohibron9 ensures reliable backflow prevention under chemically and mechanically demanding conditions.

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Ball Check Valve Tabular Overview

Parameter Value
Name Prohibron9
Design Norm DIN/ISO | ANSI
Size DN 25-250 | NPS 1-10
Flange Dimensions DIN 2501 (PN 16) | ASME B16.10 (Class 150-RF LP)
Face-Face-Dimensions PN (EN 558-1), Series 1 | ANSI-B-16.5
Lining Options PFA, PFA/AS, FEP, PP, PVDF
Body Materials 1.0619 or 1.4308/1.4408/1.4409 | A216/WCB,CF8/CF8M/CF3M
Pressure Range Vacuum to 10 bar, according to pressure-temperature diagram
Temperature Range -10°C up to 200°C
Leakage Rate According to DIN 12266-1, leakage rate A
Quality Control Body 16bar, Back Seat 2 bar leakage rate D (other leakage rates on request), Spark Test 20kV
Certificates EU Pressure Equipment Directive 2014/68/EU, SIL
1 5

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Technical Specifications

Dimensional Measurements

Size L ød øk øD Bolting KVS Weight
DN 15 130mm 45mm 65mm 95mm 4 x 14 (M12) 8kg
DN 25 160mm 68mm 85mm 115mm 4 x 14 (M12) 27 5.6kg
DN 40 200mm 88mm 110mm 150mm 4 x 18 (M16) 97 9.7kg
DN 50 230mm 102mm 125mm 165mm 4 x 18 (M16) 122 13kg
DN 80 310mm 138mm 160mm 200mm 8 x 18 (M16) 300 27kg
DN 100 350mm 158mm 180mm 220mm 8 x 18 (M16) 410 35kg
DN 150 480mm 212mm 240mm 285mm 8 x 22 (M20) 360 74.5kg
DN 200 600mm 268mm 295mm 340mm 12 x 22 (M20) OR 200kg
Size L L1 ød øk øD Bolting CV Weight
NPS 1" 127mm 50.8mm 79.4mm 108mm 4 x 15.9 31 4.9kg
NPS 1½" 165mm 73mm 98.4mm 127mm 4 x 15.9 113 8.9kg
NPS 2" 178mm 92.1mm 121mm 152.4mm 4 x 19 142 12kg
NPS 3" 203mm 127mm 152.4mm 190.5mm 4 x 19 348 26kg
NPS 4" 229mm 157.2mm 190mm 228.6mm 8 x 19 476 35kg
NPS 6" 480mm 216mm 241mm 279mm 8 x 22.2 418 74.5kg
NPS 8" 457mm 269.9mm 330.2mm 381mm 12 x 25.4 390 155.5kg

Materials Table & File

Pos. Item Material
1 Body ASTM A216 WCB (1.0619), CF8-M (1.4408)
2 Lining PFA, PFA/AS, FEP, PVDF
3 Ball PTFE massive or hollow
5 Screws A2/A4-70 Stainless Steel
6 Nuts A2/A4-70 Stainless Steel

P‑T Diagram

P-T-Diagram for Prohibron9 PFA Lined Ball Check Valve

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