SUBCATEGORIES
PFA Ball Valves
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PFA Sight Glass
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PFA Plug Valves
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PFA Strainers
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Flowserve Atomac ARV2 Flanged Ball Check Valve DN 40 1 1/2“ PN16 PFA lined
Product number
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303-1100-08
Flowserve Atomac Ball Check Valve DN40Flanged
connection acc. to DIN EN 1092-2, PN16, Face to Face acc. to DIN EN 558, Series
1, Body Ductile Iron GGG40.3-PFA-lined, Ball PTFE (Solid), Max.
operating pressure 16 bar,
Tightness test acc. to DIN EN 12266-1 (Leak rate B)
Execution :
Ball check valve
Nominal width :
DN40 - 1 1/2'' inch
Categories :
ARV2 - Ball Check Valve
Material ball :
PTFE
Design :
2 ways
Face to Face length :
EN 558-1 series 1
Price
€615.06
€731.92 incl. VAT
Delivery Time:
in stock
Available:
In Stock
Flowserve Atomac ARL ball check valve DN 25 PFA lined
Product number
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303-1101-06
Ball check valve 45° PFA lined DN 25PFA-lined ball check valve type ARL has a flange connection according to DIN EN 1092-2, PN16 and a face-to-face length acc. to DIN EN 558 Series 1. The PFA lined Flowserve check valves are made of PFA-lined ductile iron EN-JS 1049 (GGG40.3) and PTFE solid ball with a tightness class of leakage rate B acc. to DIN EN 12266-1.
Categories :
ARL - Ball Check Valve
Nominal width :
DN25 - 1'' inch
Material ball :
PTFE
Face to Face length :
EN 558-1 series 1
Body:
Ductile Cast Iron(GGG40.3)+PFA
Seal :
PTFE
Price
€875.16
€1,041.44 incl. VAT
Delivery Time:
Available:
In Stock
Flowserve Atomac ARL ball check valve DN 40 PFA lined
Product number
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303-1101-08
Ball check valve 45° PFA lined DN 40PFA-lined ball check valve type ARL has a flange connection according to DIN EN 1092-2, PN16 and a face-to-face length acc. to DIN EN 558 Series 1. The PFA lined Flowserve check valves are made of PFA-lined ductile iron EN-JS 1049 (GGG40.3) and PTFE solid ball with a tightness class of leakage rate B acc. to DIN EN 12266-1.
Categories :
ARL - Ball Check Valve
Nominal width :
DN40 - 1 1/2'' inch
Material ball :
PTFE
Face to Face length :
EN 558-1 series 1
Body:
Ductile Cast Iron(GGG40.3)+PFA
Seal :
PTFE
Price
€1,110.78
€1,321.83 incl. VAT
Delivery Time:
Available:
In Stock
Flowserve Atomac ARL ball check valve DN 50 PFA lined
Product number
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303-1101-09
Ball check valve 45° PFA lined DN 50PFA-lined ball check valve type ARL has a flange connection according to DIN EN 1092-2, PN16 and a face-to-face length acc. to DIN EN 558 Series 1. The PFA lined Flowserve check valves are made of PFA-lined ductile iron EN-JS 1049 (GGG40.3) and PTFE solid ball with a tightness class of leakage rate B acc. to DIN EN 12266-1.
Categories :
ARL - Ball Check Valve
Nominal width :
DN50 - 2'' inch
Material ball :
PTFE
Face to Face length :
EN 558-1 series 1
Body:
Ductile Cast Iron(GGG40.3)+PFA
Seal :
PTFE
Price
€1,425.96
€1,696.89 incl. VAT
Delivery Time:
Available:
In Stock
Flowserve Atomac ARL ball check valve DN 80 PFA lined
Product number
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303-1101-11
Ball check valve 45° PFA lined DN 80PFA-lined ball check valve type ARL has a flange connection according to DIN EN 1092-2, PN16 and a face-to-face length acc. to DIN EN 558 Series 1. The PFA lined Flowserve check valves are made of PFA-lined ductile iron EN-JS 1049 (GGG40.3) and PTFE solid ball with a tightness class of leakage rate B acc. to DIN EN 12266-1.
Categories :
ARL - Ball Check Valve
Nominal width :
DN80 3'' inch
Material ball :
PTFE
Face to Face length :
EN 558-1 series 1
Body:
Ductile Cast Iron(GGG40.3)+PFA
Seal :
PTFE
Price
€2,041.02
€2,428.81 incl. VAT
Delivery Time:
Available:
In Stock
Flowserve Atomac ARL ball check valve 1 Inch Class150
Product number
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303-1105-06
Ball check valve 45° PFA lined 1" PFA-lined ball check valve type ARL has a flange connection according to ASME B16.5, Class150 RF and a face-to-face length acc. to DIN EN 558 Series 1. The PFA lined Flowserve check valves are made of PFA-lined ductile iron EN-JS 1049 (GGG40.3) and PTFE solid ball with a tightness class of leakage rate B acc. to DIN EN 12266-1.
Categories :
ARL - Ball Check Valve
Nominal width :
DN25 - 1'' inch
Material ball :
PTFE
Face to Face length :
EN 558-1 series 1
Body:
Ductile Cast Iron(GGG40.3)+PFA
Seal :
PTFE
Price
€924.12
€1,099.70 incl. VAT
Delivery Time:
Available:
In Stock
Flowserve Atomac ARL ball check valve 1 1/2 Inch Class150
Product number
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303-1105-08
Ball check valve 45° PFA lined 1 1/2" PFA-lined ball check valve type ARL has a flange connection according to ASME B16.5, Class150 RF and a face-to-face length acc. to DIN EN 558 Series 1. The PFA lined Flowserve check valves are made of PFA-lined ductile iron EN-JS 1049 (GGG40.3) and PTFE solid ball with a tightness class of leakage rate B acc. to DIN EN 12266-1.
Categories :
ARL - Ball Check Valve
Nominal width :
DN40 - 1 1/2'' inch
Material ball :
PTFE
Face to Face length :
EN 558-1 series 1
Body:
Ductile Cast Iron(GGG40.3)+PFA
Seal :
PTFE
Price
€1,202.58
€1,431.07 incl. VAT
Delivery Time:
in stock
Available:
In Stock
Flowserve Atomac ARL ball check valve 2 Inch Class150
Product number
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303-1105-09
Ball check valve 45° PFA lined 2" PFA-lined ball check valve type ARL has a flange connection according to ASME B16.5, Class150 RF and a face-to-face length acc. to DIN EN 558 Series 1. The PFA lined Flowserve check valves are made of PFA-lined ductile iron EN-JS 1049 (GGG40.3) and PTFE solid ball with a tightness class of leakage rate B acc. to DIN EN 12266-1.
Categories :
ARL - Ball Check Valve
Nominal width :
DN50 - 2'' inch
Material ball :
PTFE
Face to Face length :
EN 558-1 series 1
Body:
Ductile Cast Iron(GGG40.3)+PFA
Seal :
PTFE
Price
€1,539.18
€1,831.62 incl. VAT
Delivery Time:
Available:
In Stock
Flowserve Atomac ARL ball check valve 3 Inch Class150
Product number
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303-1105-11
Ball check valve 45° PFA lined 3" PFA-lined ball check valve type ARL has a flange connection according to ASME B16.5, Class150 RF and a face-to-face length acc. to DIN EN 558 Series 1. The PFA lined Flowserve check valves are made of PFA-lined ductile iron EN-JS 1049 (GGG40.3) and PTFE solid ball with a tightness class of leakage rate B acc. to DIN EN 12266-1.
Categories :
ARL - Ball Check Valve
Nominal width :
DN80 3'' inch
Material ball :
PTFE
Face to Face length :
EN 558-1 series 1
Body:
Ductile Cast Iron(GGG40.3)+PFA
Seal :
PTFE
Price
€2,201.67
€2,619.99 incl. VAT
Delivery Time:
Available:
In Stock
Flowserve Atomac ARV/SG PFA lined check valve with sight glass DN 25
Product number
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303-1106-06
PFA lined ball check valve with sight glass DN 25
The ARV/SG sight glass with an integrated check valve is designed for reliable flow control in horizontal and vertical piping systems, offering maximum compatibility and easy installation with a DIN EN 1092-2, PN16 flange connection and face to face length per DIN EN 558 (Series 1). Its PFA-lined ductile iron EN-JS 1049 (GGG40.3) body and flange provide exceptional chemical resistance and corrosion protection. The borosilicate glass (DIN 7080) ensures high transparency and long-term durability, while the PTFE solid ball effectively prevents backflow, ensuring a safe and efficient flow process.
Also available with flange connection acc. to ASME Class 150 on request.
Nominal width :
DN25 - 1'' inch
Categories :
ARV/SG - Check Valve / Sight Glass Combination
Material ball :
PTFE
Flange:
Ductile Cast Iron(GGG40.3)+PFA
Face to Face length :
EN 558-1 series 1
Body:
Ductile Cast Iron(GGG40.3)+PFA
Price
€1,006.74
€1,198.02 incl. VAT
Delivery Time:
in stock
Available:
In Stock
Flowserve Atomac ARV/SG PFA lined check valve with sight glass DN 40
Product number
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303-1106-08
PFA lined ball check valve with sight glass DN 40
The ARV/SG sight glass with an integrated check valve is designed for reliable flow control in horizontal and vertical piping systems, offering maximum compatibility and easy installation with a DIN EN 1092-2, PN16 flange connection and face to face length per DIN EN 558 (Series 1). Its PFA-lined ductile iron EN-JS 1049 (GGG40.3) body and flange provide exceptional chemical resistance and corrosion protection. The borosilicate glass (DIN 7080) ensures high transparency and long-term durability, while the PTFE solid ball effectively prevents backflow, ensuring a safe and efficient flow process.
Also available with flange connection acc. to ASME Class 150 on request.
Nominal width :
DN40 - 1 1/2'' inch
Categories :
ARV/SG - Check Valve / Sight Glass Combination
Material ball :
PTFE
Flange:
Ductile Cast Iron(GGG40.3)+PFA
Face to Face length :
EN 558-1 series 1
Body:
Ductile Cast Iron(GGG40.3)+PFA
Price
€1,110.78
€1,321.83 incl. VAT
Delivery Time:
Available:
In Stock
Flowserve Atomac ARV/SG PFA lined check valve with sight glass DN 50
Product number
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303-1106-09
PFA lined ball check valve with sight glass DN 50
The ARV/SG sight glass with an integrated check valve is designed for reliable flow control in horizontal and vertical piping systems, offering maximum compatibility and easy installation with a DIN EN 1092-2, PN16 flange connection and face to face length per DIN EN 558 (Series 1). Its PFA-lined ductile iron EN-JS 1049 (GGG40.3) body and flange provide exceptional chemical resistance and corrosion protection. The borosilicate glass (DIN 7080) ensures high transparency and long-term durability, while the PTFE solid ball effectively prevents backflow, ensuring a safe and efficient flow process.
Also available with flange connection acc. to ASME Class 150 on request.
Nominal width :
DN50 - 2'' inch
Categories :
ARV/SG - Check Valve / Sight Glass Combination
Material ball :
PTFE
Flange:
Ductile Cast Iron(GGG40.3)+PFA
Face to Face length :
EN 558-1 series 1
Body:
Ductile Cast Iron(GGG40.3)+PFA
Price
€1,425.96
€1,696.89 incl. VAT
Delivery Time:
Available:
In Stock
Flowserve Atomac ARV/SG PFA lined check valve with sight glass DN 80
Product number
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303-1106-11
PFA lined ball check valve with sight glass DN 80
The ARV/SG sight glass with an integrated check valve is designed for reliable flow control in horizontal and vertical piping systems, offering maximum compatibility and easy installation with a DIN EN 1092-2, PN16 flange connection and face to face length per DIN EN 558 (Series 1). Its PFA-lined ductile iron EN-JS 1049 (GGG40.3) body and flange provide exceptional chemical resistance and corrosion protection. The borosilicate glass (DIN 7080) ensures high transparency and long-term durability, while the PTFE solid ball effectively prevents backflow, ensuring a safe and efficient flow process.
Also available with flange connection acc. to ASME Class 150 on request.
Nominal width :
DN80 3'' inch
Categories :
ARV/SG - Check Valve / Sight Glass Combination
Material ball :
PTFE
Flange:
Ductile Cast Iron(GGG40.3)+PFA
Face to Face length :
EN 558-1 series 1
Body:
Ductile Cast Iron(GGG40.3)+PFA
Price
€1,855.89
€2,208.51 incl. VAT
Delivery Time:
Available:
In Stock
Flowserve Atomac ARV/SG PFA lined check valve with sight glass DN 100
Product number
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303-1106-12
PFA lined ball check valve with sight glass DN 100
The ARV/SG sight glass with an integrated check valve is designed for reliable flow control in horizontal and vertical piping systems, offering maximum compatibility and easy installation with a DIN EN 1092-2, PN16 flange connection and face to face length per DIN EN 558 (Series 1). Its PFA-lined ductile iron EN-JS 1049 (GGG40.3) body and flange provide exceptional chemical resistance and corrosion protection. The borosilicate glass (DIN 7080) ensures high transparency and long-term durability, while the PTFE solid ball effectively prevents backflow, ensuring a safe and efficient flow process.
Also available with flange connection acc. to ASME Class 150 on request.
Categories :
ARV/SG - Check Valve / Sight Glass Combination
Nominal width :
DN100 - 4'' inch
Material ball :
PTFE
Flange:
Ductile Cast Iron(GGG40.3)+PFA
Face to Face length :
EN 558-1 series 1
Body:
Ductile Cast Iron(GGG40.3)+PFA
Price
€2,876.40
€3,422.84 incl. VAT
Delivery Time:
Available:
In Stock
Flowserve Atomac ARK2 swing check valve DN 200 PN10 PFA lined
Product number
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301-1300-16
Flowserve Atomac Wafer Swing Check Valve DN200Flanged
connection acc. to DIN EN 1092-2, PN10, Face to Face acc. to DIN EN 558, Series
20, Body Ductile Iron EN-JS 1049 (GGG40.3)-PFA-alined, Disc Ductile Iron EN-JS
1049 (GGG40.3)-PFA-coated, Max. operating pressure 10 bar,
Tightness test acc. to DIN EN 12266-1 (Leak rate B)
Execution :
Sandwich Check Valve
Categories :
ARK2-PFA Lined Check Valve
Nominal width :
DN200 - 8'' inch
Face to Face length :
EN 558-series 20
Body:
Ductile Cast Iron(GGG40.3)+PFA
Price
€1,897.20
€2,257.67 incl. VAT
Delivery Time:
in stock
Available:
In Stock
Flowserve Atomac ARV2 flange DN50 PN16 ball check valve PFA lined nodular cast iron
Product number
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303-1100-09
Flowserve Atomac Ball Check Valve DN50
Flange connection drilled acc. to DIN EN 1092-2 PN16, installation length acc. to DIN EN 558 (basic series 1), ball material PTFE solid ball, body (2-piece) nodular cast iron EN-JS 1049 (GGG40.3) / PFA lined, max.pressure 16bar,
Tightness test acc. to DIN EN 12266-1 (Leak rate B)
Execution :
Ball check valve
Nominal width :
DN50 - 2'' inch
Categories :
ARV2 - Ball Check Valve
Material ball :
PTFE
Design :
2 ways
Face to Face length :
EN 558-1 series 1
Price
€703.80
€837.52 incl. VAT
Delivery Time:
in stock
Available:
In Stock
Flowserve Atomac ARK2 swing check valve DN 400 PN10 PFA lined
Product number
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301-1300-24
Flowserve Atomac Wafer Swing Check Valve DN400Flanged
connection acc. to DIN EN 1092-2, PN10, Face to Face acc. to DIN EN 558, Series
20, Body Ductile Iron EN-JS 1049 (GGG40.3)-PFA-ausgekleidet, Disc Ductile Iron EN-JS
1049 (GGG40.3)-PFA-ausgekleidet, Max. operating pressure 10 bar,
Tightness test acc. to DIN EN 12266-1 (Leak rate B)
Execution :
Sandwich Check Valve
Categories :
ARK2-PFA Lined Check Valve
Nominal width :
DN400 - 16'' inch
Face to Face length :
EN 558-series 20
Body:
Ductile Cast Iron(GGG40.3)+PFA
Price
€4,244.22
€5,050.62 incl. VAT
Delivery Time:
in stock
Available:
In Stock
Flowserve Atomac ARK2 swing check valve DN 80 PN16 PFA lined
Product number
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301-1300-11
Flowserve Atomac Wafer Swing Check Valve DN80 Flanged
connection acc. to DIN EN 1092-2, PN16, Face to Face acc. to DIN EN 558, Series
20, Body Ductile Iron EN-JS 1049 (GGG40.3)-PFA-ausgekleidet, Disc Ductile Iron EN-JS
1049 (GGG40.3)-PFA-ausgekleidet, Max. operating pressure 16 bar,
Tightness test acc. to DIN EN 12266-1 (Leak rate B)
Execution :
Sandwich Check Valve
Nominal width :
DN80 3'' inch
Categories :
ARK2-PFA Lined Check Valve
Face to Face length :
EN 558-series 20
Body:
Ductile Cast Iron(GGG40.3)+PFA
Price
€1,315.80
€1,542.84 incl. VAT
Delivery Time:
in stock
Available:
In Stock
Flowserve Atomac ARK2 swing check valve DN 50 PN16 PFA lined
Product number
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301-1300-09
Flowserve Atomac Wafer Swing Check Valve DN50Flanged
connection acc. to DIN EN 1092-2, PN16, Face to Face acc. to DIN EN 558, Series
20, Body Ductile Iron EN-JS 1049 (GGG40.3)-PFA-ausgekleidet, Disc Ductile Iron EN-JS
1049 (GGG40.3)-PFA-ausgekleidet, Max. operating pressure 16 bar,
Tightness test acc. to DIN EN 12266-1 (Leak rate B)
Execution :
Sandwich Check Valve
Nominal width :
DN50 - 2'' inch
Categories :
ARK2-PFA Lined Check Valve
Face to Face length :
EN 558-series 20
Body:
Ductile Cast Iron(GGG40.3)+PFA
Price
€1,277.55
€1,520.28 incl. VAT
Delivery Time:
in stock
Available:
In Stock
Flowserve Atomac ARV2 Flanged Ball Check Valve DN 25 1" PN16 PFA lined
Product number
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303-1100-06
Flowserve Atomac Ball Check Valve DN25 Flanged
connection acc. to DIN EN 1092-2, PN16, Face to Face acc. to DIN EN 558, Series
1, Body Ductile Iron GGG40.3-PFA-lined, Ball PTFE (Solid), Max.
operating pressure 16 bar,
Tightness test acc. to DIN EN 12266-1 (Leak rate B)
Execution :
Ball check valve
Nominal width :
DN25 - 1'' inch
Categories :
ARV2 - Ball Check Valve
Material ball :
PTFE
Design :
2 ways
Face to Face length :
EN 558-1 series 1
Price
€481.95
€573.52 incl. VAT
Delivery Time:
in stock
Available:
In Stock
The Flowserve PFA Check Valve Program
As an authorized partner, we offer a comprehensive range of PFA check valves from the renowned Atomac brand by Flowserve. The ARV2, ARL and ARV/SG series stand for the highest quality and technical innovation in chemical plant engineering.
Series & Design |
Connection Standard |
Special Features & Advantages |
|---|---|---|
|
ARV2 Ball Check Valve (Straight) |
DIN EN 1092-2 PN16 |
|
|
ARL Ball Check Valve (45°) |
DIN EN 1092-2 PN16 |
|
|
ARL (ANSI) Ball Check Valve (45°) |
ASME B16.5 Class150 |
|
|
ARV/SG Combination Check Valve/Sight Glass |
DIN EN 1092-2 PN16 |
|
Technology and Features
The ball check valves in the ARV2 and ARL series feature a solid two-piece GGG40.3 ductile iron body fully lined with PFA. Inside, a solid PTFE ball ensures that backflow remains securely seated. The valves are built according to EN 558, series 1, and are leak-tested to DIN EN 12266-1 (leak rate B).
A special feature: the ARL series can be installed at a 45° angle. This improves flow and significantly reduces pressure loss compared to straight models – a real advantage in continuous operation and high flow rates.
For applications requiring backflow protection with visual inspection, the ARV/SG combination is available: a PFA-lined ball check valve directly combined with a borosilicate sight glass according to DIN 7080 – ideal for demanding chemical and pharmaceutical processes.
Typical Applications and Selection Points
- Chemicals: Protects pipelines for acids, alkalis, solvents, or chlorinated hydrocarbons
- Pharma: Prevents backflow of pure active ingredients or aggressive cleaning agents
- Semiconductor Manufacturing: Suitable for ultra-pure chemicals and purified water
- Surface Treatment: Usable in galvanizing and pickling processes
- Food Industry: Proven in CIP cleaning processes with aggressive media
When choosing the right PFA check valve, consider the media type and concentration, operating pressure (up to 16 bar), required nominal diameter, connection standard (DIN or ANSI), and desired installation orientation (horizontal or vertical). The ARL series with 45° angle is particularly suitable for processes with low pressure loss and constant flow.
FERGO: Quality and Fast Delivery
All Flowserve PFA check valves meet high-quality standards and are carefully inspected. At FERGO, we keep these valves in stock – compatible with DIN and ANSI standards in the most common sizes. Our technical team provides expert advice to help you find the ideal valve for your application.
Frequently Asked Questions – PFA Valves
A PFA-lined valve combines the mechanical strength of a ductile iron (GGG40.3) outer body with a seamless inner lining of PFA (Perfluoroalkoxy) – a fully fluorinated thermoplastic from the PTFE family with near-universal chemical resistance. The construction principle:
- Outer body: Ductile cast iron EN-GJS-400-15 (GGG40.3) provides the pressure-bearing shell, flange geometry, and mechanical robustness. The iron never contacts the process medium.
- PFA lining: All wetted surfaces – body bore, flanges, closure element (ball, disc, plug), stem seal area, and internals – are completely encapsulated in a thick, monolithic PFA liner. The liner is bonded or compression-fitted to the iron body to form a single leak-free unit.
- No metallic contact with medium: Because the PFA liner fully isolates all iron and steel components from the process fluid, PFA valves can handle virtually any chemical that would corrode or contaminate stainless steel – including concentrated acids, halogens, and ultra-pure fluids where even trace metal ion contamination is unacceptable.
- Closure elements: The ball (in ball valves), disc (in check valves), plug (in plug valves), and strainer basket are also fully PFA-encapsulated or PFA-moulded, ensuring zero metal exposure at any flow-wetted surface.
- Near-universal chemical resistance – resistant to almost all acids, alkalis, solvents, and oxidising agents at concentrations from dilute to concentrated
- Operating temperature: −60°C to +180°C (liner); most Flowserve models rated to +150°C continuous process service
- Extremely low surface energy (non-stick, anti-fouling) – media does not adhere to or contaminate the PFA surface
- Electrically insulating – prevents galvanic corrosion and electrostatic product contamination
- FDA-compliant grades available for pharmaceutical and food-contact applications
FERGO is an authorised Flowserve partner and stocks the complete Flowserve PFA valve programme under the renowned Atomac and Durco brand names. The range covers 5 valve types for a complete PFA pipeline system:
- PFA Ball Valves – Quarter-turn shut-off; full-bore PFA-lined ball and body; ISO 5211 actuator interface for pneumatic or electric automation; flanged PN10/16 and ANSI Class 150; DN15–DN150. The most commonly specified PFA valve type for on/off isolation in aggressive chemical service.
- PFA Check Valves – Wafer and flanged non-return valves with PFA-lined body and PFA disc; prevent backflow of aggressive or ultra-pure media without any metal contact; PN10/16, ANSI Class 150; DN15–DN300.
- PFA Sight Glass – Flow observation windows with PFA-lined body and borosilicate glass sight window; visual process monitoring in aggressive chemical pipelines; flanged PN10/16; DN15–DN200.
- PFA Plug Valves – Quarter-turn plug (cock) valves with PFA-lined conical plug and body; reliable shut-off with minimal dead volume; suitable for slurries, viscous fluids, and media where a full-bore straight passage is critical; flanged PN10/16; DN15–DN200.
- PFA Strainers – Y-type and basket strainers with PFA-lined body and PFA-coated strainer basket; protect downstream equipment from particulates in aggressive media pipelines; flanged PN10/16; DN15–DN400.
PFA offers near-universal chemical resistance – one of the broadest of any engineering material. This is the defining reason to specify PFA-lined valves over stainless steel or other alloys. Key media that PFA handles where stainless steel fails or is unsuitable:
Mineral acids (all concentrations):
Mineral acids (all concentrations):
- Hydrochloric acid (HCl) – all concentrations; stainless steel corrodes severely above ~2% HCl; PFA is fully resistant
- Sulphuric acid (H₂SO₄) – dilute to concentrated (including fuming); highly corrosive to SS at intermediate concentrations
- Hydrofluoric acid (HF) – highly aggressive to glass, SS, and most metals; PFA is resistant at concentrations up to ~60% at moderate temperatures
- Nitric acid (HNO₃) – dilute and concentrated; PFA resists even fuming nitric acid
- Phosphoric acid (H₃PO₄) – all concentrations; routine PFA service
- Sodium hydroxide / potassium hydroxide (NaOH / KOH) – concentrated caustic lyes; PFA is fully resistant
- Chlorine (Cl₂), bromine (Br₂), fluorine (F₂) – gaseous and liquid halogens; among the most aggressive oxidising agents; PFA resists all three
- Hydrogen peroxide (H₂O₂) – dilute to concentrated; PFA resistant; SS may be used at low concentrations but PFA is preferred for high-purity applications
- Sodium hypochlorite (NaOCl) – bleach and chlorination chemicals; PFA fully resistant
- Aromatic solvents (toluene, xylene), ketones, esters, chlorinated solvents (DCM, TCE) – PFA resistant across the range
- Dimethyl sulfoxide (DMSO), dimethylformamide (DMF) – aggressive solvents used in pharma/chemical synthesis; PFA resistant
- PFA is the liner material of choice for ultra-high-purity (UHP) water, piranha solution (H₂SO₄/H₂O₂), SC1/SC2 cleaning chemicals, and HF/HNO₃ etch solutions in semiconductor fabs – where even sub-ppb metal ion contamination from stainless steel is unacceptable
The choice between PFA-lined and stainless steel (or exotic alloy) valves depends on the medium, concentration, temperature, and purity requirements:
Choose a PFA-lined valve when:
Choose a PFA-lined valve when:
- The medium corrodes stainless steel: HCl above ~2%, concentrated H₂SO₄ at intermediate concentrations, HF at any concentration, Cl₂/Br₂ wet gas, or any medium shown as incompatible with SS 316 in chemical resistance tables
- Metal contamination is unacceptable: Pharmaceutical APIs, UHP semiconductor chemicals, food-grade acids, and high-purity process streams where even ppb-level iron, chromium, or nickel contamination causes product failure or process excursions
- Cost vs exotic alloys: Hastelloy C-276, titanium, or tantalum valves offer corrosion resistance comparable to PFA for some media, but at 5–15× the cost per valve. A GGG40 + PFA-lined valve covers the same chemical service at a fraction of the price.
- Complete system consistency: When the pipeline is already PFA-lined, using PFA valves avoids introducing dissimilar materials at valve connections – maintaining lining continuity throughout the system
- Operating temperature ≤ +180°C: Within the PFA liner's service range; for temperatures above +180°C, alternative materials must be evaluated
- The medium is compatible with SS 316 (1.4408) – water, steam, neutral process fluids, mild acids/alkalis at low concentration
- Operating temperature exceeds +180°C – PFA liner is outside its service range; SS or carbon steel is required
- High pressure rating (PN40 or above) is required – PFA-lined valves are rated to PN10/16 / ANSI Class 150; SS valves can reach PN40 and higher
- Mechanically demanding service (abrasive slurries, high flow velocity causing liner erosion risk, or frequent actuation with high differential pressure) where liner integrity could be compromised over time
The Flowserve PFA valve range available from FERGO covers the following technical parameters:
Nominal sizes by valve type:
Connection standard: Flanged face-to-face per EN 558 / ASME B16.10 as applicable. Wafer (face-to-face) construction available for check valves and some sight glass models for compact installation between standard PN10/16 or ANSI 150 flanges.
Actuation (ball valves and plug valves): ISO 5211 actuator mounting pad integral to the valve body allows direct mounting of pneumatic or electric part-turn actuators – same interface as standard stainless steel ball valves. FERGO can supply complete actuated PFA valve assemblies with pneumatic actuator, NAMUR solenoid valve, and limit switch box.
Nominal sizes by valve type:
- PFA Ball Valves: DN15 – DN150
- PFA Check Valves: DN15 – DN300
- PFA Sight Glass: DN15 – DN200
- PFA Plug Valves: DN15 – DN200
- PFA Strainers: DN15 – DN400
- PN10 / PN16 – flanged per EN 1092-1, compatible with DIN PN10/16 pipeline flanges throughout
- ANSI Class 150 – flanged per ASME B16.5, for projects with American pipe specifications or export installations requiring ANSI flanging
Connection standard: Flanged face-to-face per EN 558 / ASME B16.10 as applicable. Wafer (face-to-face) construction available for check valves and some sight glass models for compact installation between standard PN10/16 or ANSI 150 flanges.
Actuation (ball valves and plug valves): ISO 5211 actuator mounting pad integral to the valve body allows direct mounting of pneumatic or electric part-turn actuators – same interface as standard stainless steel ball valves. FERGO can supply complete actuated PFA valve assemblies with pneumatic actuator, NAMUR solenoid valve, and limit switch box.
PFA valves are the standard valve solution in any process where the medium is incompatible with metallic wetted surfaces. Key industries:
- Chemical manufacturing: Chlor-alkali plants (Cl₂, NaOH, HCl); sulphuric acid production and handling; hydrofluoric acid (HF) processes; nitric acid, phosphoric acid, and mixed acid systems; bleaching agents (NaOCl, H₂O₂); aggressive organic synthesis solvents. PFA valves replace Hastelloy, tantalum, or rubber-lined valves in these services at significantly lower cost.
- Semiconductor and electronics manufacturing: UHP (ultra-high purity) chemical distribution systems; wet bench etch processes (HF/HNO₃, buffered oxide etch, piranha solution); SC1/SC2 wafer cleaning chemicals; photolithography chemical supply. PFA is the dominant lining material in semiconductor fabs because it introduces zero metal ion contamination into process chemicals.
- Pharmaceutical and fine chemicals: API synthesis and handling involving aggressive solvents or acids; highly corrosive intermediate streams; sterile process lines where FDA-compliant PFA grades eliminate metallic contamination risk. PFA sight glasses provide visual monitoring without stainless steel contact.
- Water treatment and environmental: Chlorination and fluoridation chemical dosing (Cl₂, NaOCl, HF); acid/alkali pH correction dosing (H₂SO₄, HCl, NaOH); reverse osmosis chemical cleaning systems; industrial effluent neutralisation.
- Food and beverage: Acid cleaning-in-place (CIP) circuits; citric acid, phosphoric acid, and caustic soda (NaOH) handling; FDA-compliant PFA grades for direct food-contact applications where SS passivation is insufficient.
- Pulp and paper: Bleaching chemical circuits (ClO₂, H₂O₂, NaOCl); acid washing; aggressive bleach plant chemical handling where PFA replaces titanium or rubber-lined equipment.
Yes – PFA ball valves and PFA plug valves from the Flowserve Atomac/Durco range are designed with an ISO 5211 actuator mounting pad integrated directly into the valve body (or top flange). This is the same standardised interface used on conventional stainless steel ball valves, which means:
FERGO supplies complete actuated PFA valve assemblies – valve + actuator + solenoid + limit switch – factory-assembled, tested, and ready to install. Contact shop@fergo-valve.com for project configurations.
- Direct mounting of standard pneumatic or electric part-turn actuators without brackets or adapters
- Full compatibility with FERGO's pneumatic actuators (double-acting and spring-return / fail-safe) and J4C electric part-turn actuators
- NAMUR solenoid valve interface for pneumatic control from a DCS or PLC via NAMUR solenoid valves
- Position feedback via limit switch box or inductive sensors
- ATEX-certified actuator options for installation in explosive atmosphere zones (Zone 1 / Zone 2) – relevant for chemical plants handling flammable solvents alongside corrosive media
FERGO supplies complete actuated PFA valve assemblies – valve + actuator + solenoid + limit switch – factory-assembled, tested, and ready to install. Contact shop@fergo-valve.com for project configurations.
Flowserve is one of the world's largest and most established industrial valve manufacturers, with a dedicated PFA-lined valve programme under two specialist brands:
Why source PFA valves from FERGO?
- Atomac – Flowserve's European PFA valve brand, engineered and manufactured for demanding chemical process applications. The Atomac range covers PFA ball valves, check valves, sight glasses, plug valves, and strainers to EN / DIN standards (PN10/16, EN 1092-1 flanges).
- Durco – Flowserve's internationally recognised PFA and lined valve brand with ANSI/ASME-standard products (Class 150, ASME B16.5 flanges) for global export projects and US-specification installations.
Why source PFA valves from FERGO?
- Authorised Flowserve partner: FERGO is an authorised distributor of Flowserve PFA valves – all products are genuine Atomac/Durco with full manufacturer documentation and traceability
- Stock availability: Most standard PFA valve models and sizes are held in FERGO stock for immediate or next-day delivery – critical for unplanned maintenance and production shutdowns
- Complete system supply: FERGO supplies PFA valves alongside actuators, PTFE flange gaskets, solenoid valves, and all ancillary equipment needed for a complete PFA pipeline installation
- Technical application support: 20+ years of industrial valve experience; expert guidance on media compatibility, size selection, and actuator specification for aggressive chemical service