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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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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Technical Specifications

Dimensional Measurements

PFA Lined Ball Check Valve Dimensional Drawing. Find the correct size for your corrosive applications.
Size L ød øk øD Bolting KVS Weight
DN 25 160 mm 68 mm 85 mm 115 mm 4 x 14 (M12) 27 4,9 kg
DN 40 200 mm 88 mm 110 mm 150 mm 4 x 18 (M16) 97 8,9 kg
DN 50 230 mm 102 mm 125 mm 165 mm 4 x 18 (M16) 122 12 kg
DN 80 310 mm 138 mm 160 mm 200 mm 8 x 18 (M16) 300 26 kg
DN 100 350 mm 158 mm 180 mm 220 mm 8 x 18 (M16) 410 35 kg
DN 150 480 mm 212 mm 240 mm 285 mm 8 x 22 (M20) 360 70 kg
Size L ød øk øD Bolting CV Weight
NPS 1" 160 mm 50,8 mm 79,4 mm 108 mm 4 x 15.9 31 4,9 kg
NPS 1½" 200 mm 73 mm 98,4 mm 127 mm 4 x 15.9 113 8,9 kg
NPS 2" 230 mm 92,1 mm 120,5 mm 152,4 mm 4 x 19 142 12 kg
NPS 3" 310 mm 127 mm 152,5 mm 190,5 mm 4 x 19 348 26 kg
NPS 4" 350 mm 157,2 mm 190,5 mm 228,6 mm 8 x 18 476 35 kg
NPS 6" 394 mm 216 mm 241 mm 279 mm 8 x 22.2 418 70 kg

Materials Table & File

PFA Lined Ball Check Valve Dimensional Drawing. Find the correct size for your corrosive applications.
Pos. Item Material
1 Body 1.0619 , 1.4308, 1.4408/ A216WCB, CF8-M or CF-8
2 Lining PFA, PFA/AS, FEP, PVDF
3 Ball PTFE massive or hollow
5 Bolts, Nuts and Screws A2/A4-70 Stainless Steel

P‑T Diagram

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

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