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
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Technical Specifications

Dimensional Measurements

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

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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