F11 is a low-alloy chromium-molybdenum heat-resistant steel, widely used in boilers, pressure vessels, and piping systems.
F11 valves have low preheating requirements before welding and a wide tolerance for post-weld heat treatment temperature ranges;
Under operating conditions of ≤480℃, F11 valves have creep and endurance strength sufficient for medium-temperature and medium-pressure steam conditions;
F11 valves can be used in hydrogen-rich environments with less stringent temperature and pressure requirements, suitable for medium- and low-temperature hydrogenation pipelines.
When the operating temperature exceeds 480℃, the creep strength of F11 valves will decrease rapidly.
① The corrosion rate of F11 valves to high-temperature H₂S media is significantly higher than that of F22, and far worse than that of F5;
② The corrosion rate of F11 valves to high-temperature oxidizing media is lower than that of F22;
① Under high-pressure, high-temperature hydrogen-contaminated conditions, the risk of hydrogen-induced cracking of F11 valves is higher than that of F22;
② F11 valves cannot be used in harsh hydrogenation main process pipelines.
Bypasses, reheat cold sections, and auxiliary steam pipelines in subcritical units;
Heater outlets, fractionation systems, and secondary pipelines in reforming units with operating temperatures ≤480℃;
Auxiliary pipelines, venting, and heat exchange sub-lines in hydrogenation units;
Process steam systems with operating temperatures between 420-480℃.
① When the design temperature is >480℃, directly upgrade to F22 valves; do not force the use of F11 valves.
② For high-concentration H₂S sulfidation corrosion conditions, F11 valves are insufficiently corrosion-resistant; F5 valves should be selected first.
③ For critical high-temperature, high-pressure hydrogen-related core process pipelines, do not select F11 valves; select F22 valves instead.
Choose F11 valves: Auxiliary systems with operating temperatures ≤480℃;
Choose F22 valves: Main steam systems and main hydrogenation process systems with operating temperatures between 480-540℃.
Design Standard of F11 Y Type Strainer:
Design Acc. to ASME B16.34 (ANSI Standard F11 Y Type Strainer);
Design Acc. to EN-12516-1/2 (EN Standard F11 Y Type Strainer, DIN Standard F11 Y Type Strainer).
Test Standard of F11 Y Type Strainer:
Test Acc. to API 598 (ANSI Standard F11 Y Type Strainer);
Test Acc. to EN 12266-1/2 (EN Standard F11 Y Type Strainer, DIN Standard F11 Y Type Strainer).
Surface Finishing of F11 Y Type Strainer:
All F11 Y Type Strainer surface is finely machined to achieve the required roughness and conforms to standard MSS SP-110.
Size of F11 Y Type Strainer:
From DN1/4’’ to 48’’ (ANSI Standard F11 Y Type Strainer);
From DN8 to DN1200 (EN Standard F11 Y Type Strainer, DIN Standard F11 Y Type Strainer).
Face to Face of F11 Y Type Strainer:
Face to Face Acc. to ASME B16.10 (ANSI Standard F11 Y Type Strainer);
Face to Face Acc. to EN 558-1 (EN Standard F11 Y Type Strainer, DIN Standard F11 Y Type Strainer).
Pressure Rating of F11 Y Type Strainer:
ANSI Class 150 F11 Y Type Strainer (ANSI Standard F11 Y Type Strainer);
ANSI Class 300 F11 Y Type Strainer (ANSI Standard F11 Y Type Strainer);
ANSI Class 600 F11 Y Type Strainer (ANSI Standard F11 Y Type Strainer);
ANSI Class 800 F11 Y Type Strainer (ANSI Standard F11 Y Type Strainer);
ANSI Class 900 F11 Y Type Strainer (ANSI Standard F11 Y Type Strainer);
ANSI Class 1500 F11 Y Type Strainer (ANSI Standard F11 Y Type Strainer);
ANSI Class 2500 F11 Y Type Strainer (ANSI Standard F11 Y Type Strainer);
EN 1092 PN 16 F11 Y Type Strainer (EN Standard F11 Y Type Strainer, DIN Standard F11 Y Type Strainer);
EN 1092 PN 25 F11 Y Type Strainer (EN Standard F11 Y Type Strainer, DIN Standard F11 Y Type Strainer);
EN 1092 PN 40 F11 Y Type Strainer (EN Standard F11 Y Type Strainer, DIN Standard F11 Y Type Strainer);
EN 1092 PN 63 F11 Y Type Strainer (EN Standard F11 Y Type Strainer, DIN Standard F11 Y Type Strainer);
EN 1092 PN 100 F11 Y Type Strainer (EN Standard F11 Y Type Strainer, DIN Standard F11 Y Type Strainer);
EN 1092 PN 160 F11 Y Type Strainer (EN Standard F11 Y Type Strainer, DIN Standard F11 Y Type Strainer);
EN 1092 PN 250 F11 Y Type Strainer (EN Standard F11 Y Type Strainer, DIN Standard F11 Y Type Strainer);
EN 1092 PN 320 F11 Y Type Strainer (EN Standard F11 Y Type Strainer, DIN Standard F11 Y Type Strainer);
EN 1092 PN 400 F11 Y Type Strainer (EN Standard F11 Y Type Strainer, DIN Standard F11 Y Type Strainer).
Working Temperature of F11 Y Type Strainer:
Please refer to the "Temperature and Pressure Curve of F11 Y Type Strainer" for temperature and pressure changes.
Ends Connection of F11 Y Type Strainer:
ANSI Flange Ends F11 Y Type Strainer;
ANSI Integral Flange Ends F11 Y Type Strainer;
ANSI Welded Flange Ends F11 Y Type Strainer;
Butt Weld (ASME B16.25) Ends F11 Y Type Strainer;
Butt Weld x ANSI Flange Ends F11 Y Type Strainer;
EN 1092 Flange Ends F11 Y Type Strainer;
EN 1092 Integral Flange Ends F11 Y Type Strainer;
EN 1092 Welded Flange Ends F11 Y Type Strainer;
Butt Weld (EN 12627) Ends F11 Y Type Strainer;
Butt Weld (ISO 1127) Ends F11 Y Type Strainer;
Butt Weld x EN 1092 Flange Ends F11 Y Type Strainer;
Male NPT (ASME B1.20.1) Ends F11 Y Type Strainer;
Male BSPP (ISO 228-1) Ends F11 Y Type Strainer;
Male BSPT (ISO 7-1) Ends F11 Y Type Strainer;
Male NPT x Female NPT Ends F11 Y Type Strainer;
Male BSPP x Female BSPP Ends F11 Y Type Strainer;
Male BSPT x Female BSPT Ends F11 Y Type Strainer;
Male NPT x Long Butt Weld (+100 mm) Ends F11 Y Type Strainer;
Male BSPP x Long Butt Weld (+100 mm) Ends F11 Y Type Strainer;
Male BSPT x Long Butt Weld (+100 mm) Ends F11 Y Type Strainer;
Female NPT (ASME B1.20.1) Ends F11 Y Type Strainer;
Female BSPP (ISO 228-1) Ends F11 Y Type Strainer;
Female BSPT (ISO 7-1) Ends F11 Y Type Strainer;
Socket Weld (ASME B16.11) Ends F11 Y Type Strainer;
Socket Weld (EN 12760) Ends F11 Y Type Strainer;
Female NPT x Socket Weld Ends F11 Y Type Strainer;
Female BSPP x Socket Weld Ends F11 Y Type Strainer;
Female BSPT x Socket Weld Ends F11 Y Type Strainer;
Butt Weld (ASME B16.25) Ends F11 Y Type Strainer;
Butt Weld (EN 12627) Ends F11 Y Type Strainer;
Female NPT x Butt Weld Ends F11 Y Type Strainer;
Female BSPP x Butt Weld Ends F11 Y Type Strainer;
Female BSPT x Butt Weld Ends F11 Y Type Strainer;
Female NPT x Long Butt Weld (+100 mm) Ends F11 Y Type Strainer;
Female BSPP x Long Butt Weld (+100 mm) Ends F11 Y Type Strainer;
Female BSPT x Long Butt Weld (+100 mm) Ends F11 Y Type Strainer;
Long Butt Weld (+100 mm Weld Stub) Ends F11 Y Type Strainer.
CE Marking of F11 Y Type Strainer:
CE Marking is Available to F11 Y Type Strainer with a Diameter of DN32 or Larger.
Chemical Composition of F11 Y Type Strainer:
For the Chemical Composition of F11 Y Type Strainer, please refer to EN 10204 Type 3.1 certificate.
Mechanical Properties of F11 Y Type Strainer:
For the Mechanical Properties of F11 Y Type Strainer, please refer to EN 10204 Type 3.1 certificate.
Certificate of F11 Y Type Strainer:
All F11 Y Type Strainer will be delivered with EN 10204 Type 3.1 Certificate.
Approvals of F11 Y Type Strainer:
MSS SP-110 Certified of F11 Y Type Strainer;
NACE MR 0175 Certified of F11 Y Type Strainer
API 607 Fire Safe Certified of F11 Y Type Strainer;
ISO 9001 Certified of F11 Y Type Strainer;
PED Certified of F11 Y Type Strainer.
Available Upon Request of F11 Y Type Strainer:
NACE MR0175 is available upon request of F11 Y Type Strainer;
ATEX is available upon request of F11 Y Type Strainer;
TA-LUFT is available upon request of F11 Y Type Strainer;
SIL is available upon request of F11 Y Type Strainer;
Degreasing is available upon request of F11 Y Type Strainer;
Fire Safe is available upon request of F11 Y Type Strainer;
Stem Extension is available upon request of F11 Y Type Strainer;
Double Block and Bleed is available upon request of F11 Y Type Strainer.