904L Valve

904L Valves, EN 1.4539 Valves

 

1. Main features of 904L valves:

 

904L is an ultra-low carbon, high-alloy austenitic stainless steel. The core advantage of 904L valves is their exceptional corrosion resistance in harsh environments such as dilute sulfuric acid and chloride-containing media, and their ease of machining and welding.

 

2. Main advantages of 904L valves Produced by Freeman Valve:

 

2.1 Excellent corrosion resistance:

 

① Freeman Valve's 904L valves have high molybdenum (Mo: 4~5%) and copper (Cu: 1~2%) content, significantly improving their resistance to reducing acids (such as sulfuric acid and phosphoric acid) and halides (such as chloride ions);

 

② Freeman Valve's 904L valves perform excellently in media such as dilute sulfuric acid, boiling phosphoric acid, and organic acids, exhibiting outstanding resistance to pitting and crevice corrosion.

 

2.2 Excellent resistance to stress corrosion cracking (SCC):

Freeman Valve's 904L valves are suitable for environments containing chloride ions (such as seawater and chloride solutions), exhibiting superior resistance to stress corrosion cracking compared to conventional austenitic stainless steels.

 

2.3 High-temperature adaptability:

Freeman Valve's 904L valves maintain stability at high temperatures and can withstand short-term environments up to approximately 400°C.

 

3. The following points should be noted when using 904L valves:

 

3.1 Not suitable for strong oxidizing environments: 

In strong oxidizing acids such as nitric acid, 904L valves actually have lower corrosion resistance than 304L or 316L valves with lower molybdenum content.

 

3.2 Sensitivity issues: 

Improper welding or heat treatment of 904L valves can easily lead to carbide precipitation, requiring solution treatment (rapid cooling at 1100~1150°C) to restore performance.

 

4. Classic applications of Freeman Valve 904L valves:

 

4.1 Freeman Valve 904L valves are widely used in sulfuric acid environments.

For example: dilute sulfuric acid storage tanks, pipelines, heat exchangers (especially for sulfuric acid with a concentration ≤10%, exhibiting excellent corrosion resistance at temperatures ≤40℃).

 

4.2 Freeman Valve 904L valves are widely used in systems containing chloride ions.

For example: seawater cooling systems, salt chemical evaporators, chlorination reactor linings.

 

4.3 Freeman Valve 904L valves are widely used in organic acid processing.

For example: acetic acid and formic acid production equipment, preventing localized corrosion.

 

4.4 Freeman Valve 904L valves are widely used in environmental protection and hydrometallurgical fields.

For example: flue gas desulfurization (FGD) system components, acidic wastewater treatment equipment.

 

4.5 Freeman Valve 904L valves are widely used in PTA (purified terephthalic acid) production. 

For example: crystallizers and condensers used in high-temperature acetic acid media.

 

4.6 Freeman Valve's 904L valves are widely used in the pharmaceutical industry.

For example: reaction vessels and pipelines for high-purity pharmaceuticals (resistant to cleaning agent corrosion).

 

Differences between 904L valves and 2205 valves in resisting chloride ion corrosion

 

1. Different emphases on pitting/crevice corrosion resistance:

 

① The pitting equivalent value (PREN≈33-35) of the 2205 valve is higher than that of the 904L valve (PREN≈32-34), and the nitrogen content further enhances its resistance to pitting corrosion in high-concentration, high-temperature chloride ion environments (such as high-chlorinated brine in deep well oil production and seawater above 60℃).

 

② The high nickel + copper content of the 904L valve results in a passivation film with significantly greater stability than that of the 2205 valve in reducing media containing chloride (such as dilute sulfuric acid + chloride ion mixtures), without exhibiting the phase imbalance problem common in duplex steels.

 

2. Differences in resistance to stress corrosion cracking (SCC):

 

① Stress corrosion cracking under chloride ion conditions is a common failure mode for 2205 valves, but the high nickel content of 904L valves significantly reduces this susceptibility. 2205 valves also exhibit better SCC resistance than ordinary austenitic steels such as 316L, but under the same chloride ion concentration and stress conditions, their long-term stability is slightly lower than that of 904L valves.

 

3. Differences in process and operating condition compatibility:


① 904L valves require no heat treatment after welding and have good low-temperature toughness, making them suitable for polar and marine environments.

 

② 2205 valves require controlled heat input during welding to avoid excessive ferrite content, but their high strength (tensile strength ≥620MPa, more than 1.2 times that of 904L valves) makes them more suitable for high-pressure + high-chlorine composite operating conditions (such as high-pressure seawater pipelines).


904L Valve, EN 1.4539 Valve

Type of 904L Valve:

904L Ball Valve;

904L Instrument Ball Valve;

904L Sleeve Plug Valve;

904L Wedge Gate Valve;

904L Globe Valve;

904L Swing Check Valve;

904L Lift Check Valve;

904L Piston Check Valve;

904L Wafer Check Valve;

904L Triple Offset Butterfly Valve;

904L Y Type Strainer;

904L T Type Strainer;

904L Basket Type Strainer;

904L Diaphragm Valve;

904L Spring Loaded Safety Valve.

 

Design and Test Standard of 904L Valve:

904L High Performance Ball Valve Design Acc. to ASME B16.34, Test Acc. to API 598;

904L High Performance Ball Valve Design Acc. to EN 12516-1/2, Test Acc. to EN 12266-1/2;

904L Instrument Ball Valve Design Acc. to ASME B16.34, Test Acc. to API 598;

904L Instrument Ball Valve Design Acc. to EN 12516-1/2, Test Acc. to EN 12266-1/2;

904L Sleeve Plug Valve Design Acc. to API 599 & ASME B16.34, Test Acc. to API 598;

904L Wedge Gate Valve Design Acc. to API 603 & ASME B16.34, Test Acc. to API 598;

904L Wedge Gate Valve Design Acc. to API 602, Test Acc. to API 598;

904L Wedge Gate Valve Design Acc. to EN 1984 & EN 12516-1/2, Test Acc. to EN 12266-1/2;

904L Globe Valve Design Acc. to BS 1873 & ASME B16.34, Test Acc. to API 598;

904L Globe Valve Design Acc. to API 602, Test Acc. to API 598;

904L Globe Valve Design Acc. to EN 13709 & EN 12516-1/2, Test Acc. to EN 12266-1/2;

904L Swing Check Valve Design Acc. to API 594 & ASME B16.34, Test Acc. to API 598;

904L Swing Check Valve Design Acc. to EN 16767 & EN 12516-1/2, Test Acc. to EN 12266-1/2;

904L Lift Check Valve Design Acc. to API 594 & ASME B16.34, Test Acc. to API 598;

904L Lift Check Valve Design Acc. to EN 16767 & EN 12516-1/2, Test Acc. to EN 12266-1/2;

904L Piston Check Valve Design Acc. to API 594 & ASME B16.34, Test Acc. to API 598;

904L Piston Check Valve Design Acc. to EN 16767 & EN 12516-1/2, Test Acc. to EN 12266-1/2;

904L Wafer Check Valve Design Acc. to API 594 & ASME B16.34, Test Acc. to API 598;

904L Wafer Check Valve Design Acc. to EN 16767 & EN 12516-1/2, Test Acc. to EN 12266-1/2;

904L Check Valve Design Acc. to API 602, Test Acc. to API 598;

904L Triple Offset Butterfly Valve Design Acc. to API 609 & ASME B16.34, Test Acc. to API 598;

904L Triple Offset Butterfly Valve Design Acc. to EN 593 & EN 12516-1/2, Test Acc. to EN 12266-1/2;

904L Y Type Strainer Design Acc. to ASME B16.34, Test Acc. to API 598;

904L Y Type Strainer Design Acc. to EN 12516-1/2, Test Acc. to EN 12266-1/2;

904L T Type Strainer Design Acc. to ASME B16.34, Test Acc. to API 598;

904L T Type Strainer Design Acc. to EN 12516-1/2, Test Acc. to EN 12266-1/2;

904L Basket Type Strainer Design Acc. to ASME B16.34, Test Acc. to API 598;

904L Basket Type Strainer Design Acc. to EN 12516-1/2, Test Acc. to EN 12266-1/2;

904L Diaphragm Valve Design Acc. to ASME B16.34, Test Acc. to API 598;

904L Diaphragm Valve Design Acc. to EN 12516-1/2, Test Acc. to EN 12266-1/2;

904L Spring Loaded Safety Valve Design Acc. to API 520 & API 526, Test Acc. to API 527;

904L Spring Loaded Safety Valve Design Acc. to ISO 4126, Test Acc. to ISO 4126.

 

Surface Finishing of 904L Valve:

All 904L Valve surface is finely machined to achieve the required roughness and conforms to standard MSS SP-55.

 

Size of 904L Valve:

From 1/4’’ to 48’’ (ANSI Standard 904L Valve);

From DN8 to DN1200 (EN Standard 904L Valve, DIN Standard 904L Valve).

 

Face to Face of 904L Valve:

Face to Face Acc. to ASME B16.10 (ANSI Standard 904L Valve);

Face to Face Acc. to EN 558-1 (EN Standard 904L Valve, DIN Standard 904L Valve).

 

Pressure Rating of 904L Valve:

ANSI Class 150 904L Valve (ANSI Standard 904L Valve);

ANSI Class 300 904L Valve (ANSI Standard 904L Valve);

ANSI Class 600 904L Valve (ANSI Standard 904L Valve);

ANSI Class 800 904L Valve (ANSI Standard 904L Valve);

ANSI Class 900 904L Valve (ANSI Standard 904L Valve);

ANSI Class 1500 904L Valve (ANSI Standard 904L Valve);

ANSI Class 2500 904L Valve (ANSI Standard 904L Valve);

EN 1092 PN 16 904L Valve (EN Standard 904L Valve, DIN Standard 904L Valve);

EN 1092 PN 25 904L Valve (EN Standard 904L Valve, DIN Standard 904L Valve);

EN 1092 PN 40 904L Valve (EN Standard 904L Valve, DIN Standard 904L Valve);

EN 1092 PN 63 904L Valve (EN Standard 904L Valve, DIN Standard 904L Valve);

EN 1092 PN 100 904L Valve (EN Standard 904L Valve, DIN Standard 904L Valve);

EN 1092 PN 160 904L Valve (EN Standard 904L Valve, DIN Standard 904L Valve);

EN 1092 PN 250 904L Valve (EN Standard 904L Valve, DIN Standard 904L Valve);

EN 1092 PN 320 904L Valve (EN Standard 904L Valve, DIN Standard 904L Valve);

EN 1092 PN 400 904L Valve (EN Standard 904L Valve, DIN Standard 904L Valve).

 

Working Temperature of 904L Valve:

Please refer to the "Temperature and Pressure Curve of 904L Valve" for temperature and pressure changes.

 

Ends Connection of 904L Valve:

ANSI Flange Ends 904L Valve;

ANSI Integral Flange Ends 904L Valve;

ANSI Welded Flange Ends 904L Valve;

Butt Weld (ASME B16.25) Ends 904L Valve;

Butt Weld x ANSI Flange Ends 904L Valve;

EN 1092 Flange Ends 904L Valve;

EN 1092 Integral Flange Ends 904L Valve;

EN 1092 Welded Flange Ends 904L Valve;

Butt Weld (EN 12627) Ends 904L Valve;

Butt Weld (ISO 1127) Ends 904L Valve;

Butt Weld x EN 1092 Flange Ends 904L Valve;

Male NPT (ASME B1.20.1) Ends 904L Valve;

Male BSPP (ISO 228-1) Ends 904L Valve;

Male BSPT (ISO 7-1) Ends 904L Valve;

Male NPT x Female NPT Ends 904L Valve;

Male BSPP x Female BSPP Ends 904L Valve;

Male BSPT x Female BSPT Ends 904L Valve;

Male NPT x Long Butt Weld (+100 mm) Ends 904L Valve;

Male BSPP x Long Butt Weld (+100 mm) Ends 904L Valve;

Male BSPT x Long Butt Weld (+100 mm) Ends 904L Valve;

Female NPT (ASME B1.20.1) Ends 904L Valve;

Female BSPP (ISO 228-1) Ends 904L Valve;

Female BSPT (ISO 7-1) Ends 904L Valve;

Socket Weld (ASME B16.11) Ends 904L Valve;

Socket Weld (EN 12760) Ends 904L Valve;

Female NPT x Socket Weld Ends 904L Valve;

Female BSPP x Socket Weld Ends 904L Valve;

Female BSPT x Socket Weld Ends 904L Valve;

Butt Weld (ASME B16.25) Ends 904L Valve;

Butt Weld (EN 12627) Ends 904L Valve;

Female NPT x Butt Weld Ends 904L Valve;

Female BSPP x Butt Weld Ends 904L Valve;

Female BSPT x Butt Weld Ends 904L Valve;

Female NPT x Long Butt Weld Ends (+100 mm) Ends 904L Valve;

Female BSPP x Long Butt Weld Ends (+100 mm) Ends 904L Valve;

Female BSPT x Long Butt Weld Ends (+100 mm) Ends 904L Valve;

Long Butt Weld Ends (+100 mm Weld Stub) Ends 904L Valve.

 

CE Marking of 904L Valve:

CE Marking is Available to 904L Valve with a Diameter of DN32 or Larger.

 

Chemical Composition of 904L Valve:

For the Chemical Composition of 904L Valve, please refer to EN 10204 Type 3.1 certificate.

 

Mechanical Properties of 904L Valve:

For the Mechanical Properties of 904L Valve, please refer to EN 10204 Type 3.1 certificate.

 

Certificate of 904L Valve:

All 904L Valve will be delivered with EN 10204 Type 3.1 Certificate.

 

Operation of 904L Valve:

Level Operation of 904L Valve;

Handwheel Operation of 904L Valve;

Pneumatic Actuator Operation of 904L Valve;

Electric Actuator Operation of 904L Valve.

 

Approvals of 904L Valve:

MSS SP-55 Certified of 904L Valve;

NACE MR 0175 Certified of 904L Valve

API 607 Fire Safe Certified of 904L Valve;

ISO 9001 Certified of 904L Valve;

PED Certified of 904L Valve.

 

Available Upon Request of 904L Valve:

NACE MR0175 is available upon request of 904L Valve;

ATEX is available upon request of 904L Valve;

TA-LUFT is available upon request of 904L Valve;

SIL is available upon request of 904L Valve;

Degreasing is available upon request of 904L Valve;

Fire Safe is available upon request of 904L Valve;

Stem Extension is available upon request of 904L Valve;

Double Block and Bleed is available upon request of 904L Valve.

 

Type of EN 1.4539 Valve:

EN 1.4539 Ball Valve;

EN 1.4539 Instrument Ball Valve;

EN 1.4539 Sleeve Plug Valve;

EN 1.4539 Wedge Gate Valve;

EN 1.4539 Globe Valve;

EN 1.4539 Swing Check Valve;

EN 1.4539 Lift Check Valve;

EN 1.4539 Piston Check Valve;

EN 1.4539 Wafer Check Valve;

EN 1.4539 Triple Offset Butterfly Valve;

EN 1.4539 Y Type Strainer;

EN 1.4539 T Type Strainer;

EN 1.4539 Basket Type Strainer;

EN 1.4539 Diaphragm Valve;

EN 1.4539 Spring Loaded Safety Valve.

 

Design and Test Standard of EN 1.4539 Valve:

EN 1.4539 High Performance Ball Valve Design Acc. to ASME B16.34, Test Acc. to API 598;

EN 1.4539 High Performance Ball Valve Design Acc. to EN 12516-1/2, Test Acc. to EN 12266-1/2;

EN 1.4539 Instrument Ball Valve Design Acc. to ASME B16.34, Test Acc. to API 598;

EN 1.4539 Instrument Ball Valve Design Acc. to EN 12516-1/2, Test Acc. to EN 12266-1/2;

EN 1.4539 Sleeve Plug Valve Design Acc. to API 599 & ASME B16.34, Test Acc. to API 598;

EN 1.4539 Wedge Gate Valve Design Acc. to API 603 & ASME B16.34, Test Acc. to API 598;

EN 1.4539 Wedge Gate Valve Design Acc. to API 602, Test Acc. to API 598;

EN 1.4539 Wedge Gate Valve Design Acc. to EN 1984 & EN 12516-1/2, Test Acc. to EN 12266-1/2;

EN 1.4539 Globe Valve Design Acc. to BS 1873 & ASME B16.34, Test Acc. to API 598;

EN 1.4539 Globe Valve Design Acc. to API 602, Test Acc. to API 598;

EN 1.4539 Globe Valve Design Acc. to EN 13709 & EN 12516-1/2, Test Acc. to EN 12266-1/2;

EN 1.4539 Swing Check Valve Design Acc. to API 594 & ASME B16.34, Test Acc. to API 598;

EN 1.4539 Swing Check Valve Design Acc. to EN 16767 & EN 12516-1/2, Test Acc. to EN 12266-1/2;

EN 1.4539 Lift Check Valve Design Acc. to API 594 & ASME B16.34, Test Acc. to API 598;

EN 1.4539 Lift Check Valve Design Acc. to EN 16767 & EN 12516-1/2, Test Acc. to EN 12266-1/2;

EN 1.4539 Piston Check Valve Design Acc. to API 594 & ASME B16.34, Test Acc. to API 598;

EN 1.4539 Piston Check Valve Design Acc. to EN 16767 & EN 12516-1/2, Test Acc. to EN 12266-1/2;

EN 1.4539 Wafer Check Valve Design Acc. to API 594 & ASME B16.34, Test Acc. to API 598;

EN 1.4539 Wafer Check Valve Design Acc. to EN 16767 & EN 12516-1/2, Test Acc. to EN 12266-1/2;

EN 1.4539 Check Valve Design Acc. to API 602, Test Acc. to API 598;

EN 1.4539 Triple Offset Butterfly Valve Design Acc. to API 609 & ASME B16.34, Test Acc. to API 598;

EN 1.4539 Triple Offset Butterfly Valve Design Acc. to EN 593 & EN 12516-1/2, Test Acc. to EN 12266-1/2;

EN 1.4539 Y Type Strainer Design Acc. to ASME B16.34, Test Acc. to API 598;

EN 1.4539 Y Type Strainer Design Acc. to EN 12516-1/2, Test Acc. to EN 12266-1/2;

EN 1.4539 T Type Strainer Design Acc. to ASME B16.34, Test Acc. to API 598;

EN 1.4539 T Type Strainer Design Acc. to EN 12516-1/2, Test Acc. to EN 12266-1/2;

EN 1.4539 Basket Type Strainer Design Acc. to ASME B16.34, Test Acc. to API 598;

EN 1.4539 Basket Type Strainer Design Acc. to EN 12516-1/2, Test Acc. to EN 12266-1/2;

EN 1.4539 Diaphragm Valve Design Acc. to ASME B16.34, Test Acc. to API 598;

EN 1.4539 Diaphragm Valve Design Acc. to EN 12516-1/2, Test Acc. to EN 12266-1/2;

EN 1.4539 Spring Loaded Safety Valve Design Acc. to API 520 & API 526, Test Acc. to API 527;

EN 1.4539 Spring Loaded Safety Valve Design Acc. to ISO 4126, Test Acc. to ISO 4126.

 

Surface Finishing of EN 1.4539 Valve:

All EN 1.4539 Valve surface is finely machined to achieve the required roughness and conforms to standard MSS SP-55.

 

Size of EN 1.4539 Valve:

From 1/4’’ to 48’’ (ANSI Standard EN 1.4539 Valve);

From DN8 to DN1200 (EN Standard EN 1.4539 Valve, DIN Standard EN 1.4539 Valve).

 

Face to Face of EN 1.4539 Valve:

Face to Face Acc. to ASME B16.10 (ANSI Standard EN 1.4539 Valve);

Face to Face Acc. to EN 558-1 (EN Standard EN 1.4539 Valve, DIN Standard EN 1.4539 Valve).

 

Pressure Rating of EN 1.4539 Valve:

ANSI Class 150 EN 1.4539 Valve (ANSI Standard EN 1.4539 Valve);

ANSI Class 300 EN 1.4539 Valve (ANSI Standard EN 1.4539 Valve);

ANSI Class 600 EN 1.4539 Valve (ANSI Standard EN 1.4539 Valve);

ANSI Class 800 EN 1.4539 Valve (ANSI Standard EN 1.4539 Valve);

ANSI Class 900 EN 1.4539 Valve (ANSI Standard EN 1.4539 Valve);

ANSI Class 1500 EN 1.4539 Valve (ANSI Standard EN 1.4539 Valve);

ANSI Class 2500 EN 1.4539 Valve (ANSI Standard EN 1.4539 Valve);

EN 1092 PN 16 EN 1.4539 Valve (EN Standard EN 1.4539 Valve, DIN Standard EN 1.4539 Valve);

EN 1092 PN 25 EN 1.4539 Valve (EN Standard EN 1.4539 Valve, DIN Standard EN 1.4539 Valve);

EN 1092 PN 40 EN 1.4539 Valve (EN Standard EN 1.4539 Valve, DIN Standard EN 1.4539 Valve);

EN 1092 PN 63 EN 1.4539 Valve (EN Standard EN 1.4539 Valve, DIN Standard EN 1.4539 Valve);

EN 1092 PN 100 EN 1.4539 Valve (EN Standard EN 1.4539 Valve, DIN Standard EN 1.4539 Valve);

EN 1092 PN 160 EN 1.4539 Valve (EN Standard EN 1.4539 Valve, DIN Standard EN 1.4539 Valve);

EN 1092 PN 250 EN 1.4539 Valve (EN Standard EN 1.4539 Valve, DIN Standard EN 1.4539 Valve);

EN 1092 PN 320 EN 1.4539 Valve (EN Standard EN 1.4539 Valve, DIN Standard EN 1.4539 Valve);

EN 1092 PN 400 EN 1.4539 Valve (EN Standard EN 1.4539 Valve, DIN Standard EN 1.4539 Valve).

 

Working Temperature of EN 1.4539 Valve:

Please refer to the "Temperature and Pressure Curve of EN 1.4539 Valve" for temperature and pressure changes.

 

Ends Connection of EN 1.4539 Valve:

ANSI Flange Ends EN 1.4539 Valve;

ANSI Integral Flange Ends EN 1.4539 Valve;

ANSI Welded Flange Ends EN 1.4539 Valve;

Butt Weld (ASME B16.25) Ends EN 1.4539 Valve;

Butt Weld x ANSI Flange Ends EN 1.4539 Valve;

EN 1092 Flange Ends EN 1.4539 Valve;

EN 1092 Integral Flange Ends EN 1.4539 Valve;

EN 1092 Welded Flange Ends EN 1.4539 Valve;

Butt Weld (EN 12627) Ends EN 1.4539 Valve;

Butt Weld (ISO 1127) Ends EN 1.4539 Valve;

Butt Weld x EN 1092 Flange Ends EN 1.4539 Valve;

Male NPT (ASME B1.20.1) Ends EN 1.4539 Valve;

Male BSPP (ISO 228-1) Ends EN 1.4539 Valve;

Male BSPT (ISO 7-1) Ends EN 1.4539 Valve;

Male NPT x Female NPT Ends EN 1.4539 Valve;

Male BSPP x Female BSPP Ends EN 1.4539 Valve;

Male BSPT x Female BSPT Ends EN 1.4539 Valve;

Male NPT x Long Butt Weld (+100 mm) Ends EN 1.4539 Valve;

Male BSPP x Long Butt Weld (+100 mm) Ends EN 1.4539 Valve;

Male BSPT x Long Butt Weld (+100 mm) Ends EN 1.4539 Valve;

Female NPT (ASME B1.20.1) Ends EN 1.4539 Valve;

Female BSPP (ISO 228-1) Ends EN 1.4539 Valve;

Female BSPT (ISO 7-1) Ends EN 1.4539 Valve;

Socket Weld (ASME B16.11) Ends EN 1.4539 Valve;

Socket Weld (EN 12760) Ends EN 1.4539 Valve;

Female NPT x Socket Weld Ends EN 1.4539 Valve;

Female BSPP x Socket Weld Ends EN 1.4539 Valve;

Female BSPT x Socket Weld Ends EN 1.4539 Valve;

Butt Weld (ASME B16.25) Ends EN 1.4539 Valve;

Butt Weld (EN 12627) Ends EN 1.4539 Valve;

Female NPT x Butt Weld Ends EN 1.4539 Valve;

Female BSPP x Butt Weld Ends EN 1.4539 Valve;

Female BSPT x Butt Weld Ends EN 1.4539 Valve;

Female NPT x Long Butt Weld Ends (+100 mm) Ends EN 1.4539 Valve;

Female BSPP x Long Butt Weld Ends (+100 mm) Ends EN 1.4539 Valve;

Female BSPT x Long Butt Weld Ends (+100 mm) Ends EN 1.4539 Valve;

Long Butt Weld Ends (+100 mm Weld Stub) Ends EN 1.4539 Valve.

 

CE Marking of EN 1.4539 Valve:

CE Marking is Available to EN 1.4539 Valve with a Diameter of DN32 or Larger.

 

Chemical Composition of EN 1.4539 Valve:

For the Chemical Composition of EN 1.4539 Valve, please refer to EN 10204 Type 3.1 certificate.

 

Mechanical Properties of EN 1.4539 Valve:

For the Mechanical Properties of EN 1.4539 Valve, please refer to EN 10204 Type 3.1 certificate.

 

Certificate of EN 1.4539 Valve:

All EN 1.4539 Valve will be delivered with EN 10204 Type 3.1 Certificate.

 

Operation of EN 1.4539 Valve:

Level Operation of EN 1.4539 Valve;

Handwheel Operation of EN 1.4539 Valve;

Pneumatic Actuator Operation of EN 1.4539 Valve;

Electric Actuator Operation of EN 1.4539 Valve.

 

Approvals of EN 1.4539 Valve:

MSS SP-55 Certified of EN 1.4539 Valve;

NACE MR 0175 Certified of EN 1.4539 Valve

API 607 Fire Safe Certified of EN 1.4539 Valve;

ISO 9001 Certified of EN 1.4539 Valve;

PED Certified of EN 1.4539 Valve.

 

Available Upon Request of EN 1.4539 Valve:

NACE MR0175 is available upon request of EN 1.4539 Valve;

ATEX is available upon request of EN 1.4539 Valve;

TA-LUFT is available upon request of EN 1.4539 Valve;

SIL is available upon request of EN 1.4539 Valve;

Degreasing is available upon request of EN 1.4539 Valve;

Fire Safe is available upon request of EN 1.4539 Valve;

Stem Extension is available upon request of EN 1.4539 Valve;

Double Block and Bleed is available upon request of EN 1.4539 Valve.