Zirconium 702 Valve

1. Key Features of Zirconium 702 Valves (UNS R60702): Zirconium 702 valves (UNS R60702) are valves made of pure zirconium with a zirconium and hafnium content of at least 99.2%. They are renowned for their high resistance to most organic acids, strong bases, and reducing acids.

 

2. Main advantages of Freeman Valve's Zirconium 702 valves:

 

2.1 Freeman Valve's Zirconium 702 valves exhibit extremely strong corrosion resistance to high-temperature reducing acids:

 

① Zirconium 702 valves demonstrate extremely strong corrosion resistance to high-temperature reducing acids (hydrochloric acid, dilute to medium-concentration sulfuric acid, formic acid, etc.), far exceeding the corrosion resistance of titanium valves and Hastelloy valves;

 

② In aqueous solutions containing chloride ions (Cl⁻), Zirconium 702 valves do not undergo chloride ion-induced stress corrosion cracking (Cl⁻ SCC) and exhibit excellent resistance to pitting and crevice corrosion;

 

2.2 Freeman Valve's Zirconium 702 valves are resistant to strong alkalis and most organic acids: 

Zirconium 702 valves can form a dense, self-healing ZrO₂ passivation film on their surface to significantly reduce the corrosion rate in the face of strong alkalis and most organic acids;

 

2.3 Freeman Valve's Zirconium 702 valves exhibit resistance to halide corrosion: 

Zirconium 702 valves are less prone to localized corrosion (ATI) in high-temperature chloride, brine, and seawater conditions;

 

2.4 Excellent weldability: 

Zirconium 702 valves can be GTAW/PAW welded under adequate inert gas protection, exhibiting a low coefficient of thermal expansion, minimal weld deformation, and eliminating the need for post-weld heat treatment (PWHT) to relieve stress and prevent cracking.

 

3. Precautions for using Zirconium 702 valves:

 

3.1 Zirconium 702 valves are not resistant to hydrofluoric acid and free fluoride ions:

 

① Zirconium 702 valves are absolutely not resistant to hydrofluoric acid and free fluoride ions;

 

② Zirconium 702 valves will experience active corrosion in anhydrous chlorine gas and high-temperature anhydrous chlorides;

 

③ Corrosion of Zirconium 702 valves will be accelerated in hot concentrated sulfuric acid with a concentration >70%;

 

④ Zirconium 702 valves are not suitable for molten strong alkalis and high-temperature, highly oxidizing salts;

 

3.2 Zirconium 702 valves have limited service life in high-temperature air:

 

① When the air temperature is >400℃, the oxidation of Zirconium 702 valves will intensify, and the matrix will become embrittled due to oxygen absorption;

 

② The risk of hydrogen embrittlement needs to be assessed for Zirconium 702 valves in hydrogen-containing media.

 

4. Main application areas of Zirconium 702 valves manufactured by Freeman Valve:

 

4.1 Zirconium 702 valves manufactured by Freeman Valve have been widely used in chemical processes. For example:

 

① Hydrochloric acid and sulfuric acid plants;

② Ammonium carbamate condensers and reactors in the urea industry;

③ Organic acid (acetic acid, formic acid) synthesis reactors and distillation columns;

④ Chlor-alkali, sodium hypochlorite, and high-temperature process equipment containing chloride salts;

 

4.2 Freeman Valve's zirconium 702 valves are widely used in heat exchange equipment, primarily for high-temperature brine and seawater media;

 

4.3 Freeman Valve's zirconium 702 valves are widely used in the pharmaceutical and fine chemical industries. For example, in high-temperature acid synthesis and sterile acid pipelines;

 

4.4 Freeman Valve's zirconium 702 valves are widely used in marine and special working conditions. For example, in high-temperature brine and media containing halide salts.


Main Features of Zirconium 702 Valve

Type of Zirconium 702 Valve:

Zirconium 702 Ball Valve;

Zirconium 702 Instrument Ball Valve;

Zirconium 702 Sleeve Plug Valve;

Zirconium 702 Wedge Gate Valve;

Zirconium 702 Globe Valve;

Zirconium 702 Swing Check Valve;

Zirconium 702 Lift Check Valve;

Zirconium 702 Piston Check Valve;

Zirconium 702 Wafer Check Valve;

Zirconium 702 Triple Offset Butterfly Valve;

Zirconium 702 Y Type Strainer;

Zirconium 702 T Type Strainer;

Zirconium 702 Basket Type Strainer;

Zirconium 702 Diaphragm Valve;

Zirconium 702 Spring Loaded Safety Valve.

 

Design and Test Standard of Zirconium 702 Valve:

Zirconium 702 High Performance Ball Valve Design Acc. to ASME B16.34, Test Acc. to API 598;

Zirconium 702 High Performance Ball Valve Design Acc. to EN 12516-1/2, Test Acc. to EN 12266-1/2;

Zirconium 702 Instrument Ball Valve Design Acc. to ASME B16.34, Test Acc. to API 598;

Zirconium 702 Instrument Ball Valve Design Acc. to EN 12516-1/2, Test Acc. to EN 12266-1/2;

Zirconium 702 Sleeve Plug Valve Design Acc. to API 599 & ASME B16.34, Test Acc. to API 598;

Zirconium 702 Wedge Gate Valve Design Acc. to API 603 & ASME B16.34, Test Acc. to API 598;

Zirconium 702 Wedge Gate Valve Design Acc. to API 602, Test Acc. to API 598;

Zirconium 702 Wedge Gate Valve Design Acc. to EN 1984 & EN 12516-1/2, Test Acc. to EN 12266-1/2;

Zirconium 702 Globe Valve Design Acc. to BS 1873 & ASME B16.34, Test Acc. to API 598;

Zirconium 702 Globe Valve Design Acc. to API 602, Test Acc. to API 598;

Zirconium 702 Globe Valve Design Acc. to EN 13709 & EN 12516-1/2, Test Acc. to EN 12266-1/2;

Zirconium 702 Swing Check Valve Design Acc. to API 594 & ASME B16.34, Test Acc. to API 598;

Zirconium 702 Swing Check Valve Design Acc. to EN 16767 & EN 12516-1/2, Test Acc. to EN 12266-1/2;

Zirconium 702 Lift Check Valve Design Acc. to API 594 & ASME B16.34, Test Acc. to API 598;

Zirconium 702 Lift Check Valve Design Acc. to EN 16767 & EN 12516-1/2, Test Acc. to EN 12266-1/2;

Zirconium 702 Piston Check Valve Design Acc. to API 594 & ASME B16.34, Test Acc. to API 598;

Zirconium 702 Piston Check Valve Design Acc. to EN 16767 & EN 12516-1/2, Test Acc. to EN 12266-1/2;

Zirconium 702 Wafer Check Valve Design Acc. to API 594 & ASME B16.34, Test Acc. to API 598;

Zirconium 702 Wafer Check Valve Design Acc. to EN 16767 & EN 12516-1/2, Test Acc. to EN 12266-1/2;

Zirconium 702 Check Valve Design Acc. to API 602, Test Acc. to API 598;

Zirconium 702 Triple Offset Butterfly Valve Design Acc. to API 609 & ASME B16.34, Test Acc. to API 598;

Zirconium 702 Triple Offset Butterfly Valve Design Acc. to EN 593 & EN 12516-1/2, Test Acc. to EN 12266-1/2;

Zirconium 702 Y Type Strainer Design Acc. to ASME B16.34, Test Acc. to API 598;

Zirconium 702 Y Type Strainer Design Acc. to EN 12516-1/2, Test Acc. to EN 12266-1/2;

Zirconium 702 T Type Strainer Design Acc. to ASME B16.34, Test Acc. to API 598;

Zirconium 702 T Type Strainer Design Acc. to EN 12516-1/2, Test Acc. to EN 12266-1/2;

Zirconium 702 Basket Type Strainer Design Acc. to ASME B16.34, Test Acc. to API 598;

Zirconium 702 Basket Type Strainer Design Acc. to EN 12516-1/2, Test Acc. to EN 12266-1/2;

Zirconium 702 Diaphragm Valve Design Acc. to ASME B16.34, Test Acc. to API 598;

Zirconium 702 Diaphragm Valve Design Acc. to EN 12516-1/2, Test Acc. to EN 12266-1/2;

Zirconium 702 Spring Loaded Safety Valve Design Acc. to API 520 & API 526, Test Acc. to API 527;

Zirconium 702 Spring Loaded Safety Valve Design Acc. to ISO 4126, Test Acc. to ISO 4126.

 

Surface Finishing of Zirconium 702 Valve:

All Zirconium 702 Valve surface is finely machined to achieve the required roughness and conforms to standard MSS SP-55.

 

Size of Zirconium 702 Valve:

From 1/4’’ to 48’’ (ANSI Standard Zirconium 702 Valve);

From DN8 to DN1200 (EN Standard Zirconium 702 Valve, DIN Standard Zirconium 702 Valve).

 

Face to Face of Zirconium 702 Valve:

Face to Face Acc. to ASME B16.10 (ANSI Standard Zirconium 702 Valve);

Face to Face Acc. to EN 558-1 (EN Standard Zirconium 702 Valve, DIN Standard Zirconium 702 Valve).

 

Pressure Rating of Zirconium 702 Valve:

ANSI Class 150 Zirconium 702 Valve (ANSI Standard Zirconium 702 Valve);

ANSI Class 300 Zirconium 702 Valve (ANSI Standard Zirconium 702 Valve);

ANSI Class 600 Zirconium 702 Valve (ANSI Standard Zirconium 702 Valve);

ANSI Class 800 Zirconium 702 Valve (ANSI Standard Zirconium 702 Valve);

ANSI Class 900 Zirconium 702 Valve (ANSI Standard Zirconium 702 Valve);

ANSI Class 1500 Zirconium 702 Valve (ANSI Standard Zirconium 702 Valve);

ANSI Class 2500 Zirconium 702 Valve (ANSI Standard Zirconium 702 Valve);

EN 1092 PN 16 Zirconium 702 Valve (EN Standard Zirconium 702 Valve, DIN Standard Zirconium 702 Valve);

EN 1092 PN 25 Zirconium 702 Valve (EN Standard Zirconium 702 Valve, DIN Standard Zirconium 702 Valve);

EN 1092 PN 40 Zirconium 702 Valve (EN Standard Zirconium 702 Valve, DIN Standard Zirconium 702 Valve);

EN 1092 PN 63 Zirconium 702 Valve (EN Standard Zirconium 702 Valve, DIN Standard Zirconium 702 Valve);

EN 1092 PN 100 Zirconium 702 Valve (EN Standard Zirconium 702 Valve, DIN Standard Zirconium 702 Valve);

EN 1092 PN 160 Zirconium 702 Valve (EN Standard Zirconium 702 Valve, DIN Standard Zirconium 702 Valve);

EN 1092 PN 250 Zirconium 702 Valve (EN Standard Zirconium 702 Valve, DIN Standard Zirconium 702 Valve);

EN 1092 PN 320 Zirconium 702 Valve (EN Standard Zirconium 702 Valve, DIN Standard Zirconium 702 Valve);

EN 1092 PN 400 Zirconium 702 Valve (EN Standard Zirconium 702 Valve, DIN Standard Zirconium 702 Valve).

 

Working Temperature of Zirconium 702 Valve:

Please refer to the "Temperature and Pressure Curve of Zirconium 702 Valve" for temperature and pressure changes.

 

Ends Connection of Zirconium 702 Valve:

ANSI Flange Ends Zirconium 702 Valve;

ANSI Integral Flange Ends Zirconium 702 Valve;

ANSI Welded Flange Ends Zirconium 702 Valve;

Butt Weld (ASME B16.25) Ends Zirconium 702 Valve;

Butt Weld x ANSI Flange Ends Zirconium 702 Valve;

EN 1092 Flange Ends Zirconium 702 Valve;

EN 1092 Integral Flange Ends Zirconium 702 Valve;

EN 1092 Welded Flange Ends Zirconium 702 Valve;

Butt Weld (EN 12627) Ends Zirconium 702 Valve;

Butt Weld (ISO 1127) Ends Zirconium 702 Valve;

Butt Weld x EN 1092 Flange Ends Zirconium 702 Valve;

Male NPT (ASME B1.20.1) Ends Zirconium 702 Valve;

Male BSPP (ISO 228-1) Ends Zirconium 702 Valve;

Male BSPT (ISO 7-1) Ends Zirconium 702 Valve;

Male NPT x Female NPT Ends Zirconium 702 Valve;

Male BSPP x Female BSPP Ends Zirconium 702 Valve;

Male BSPT x Female BSPT Ends Zirconium 702 Valve;

Male NPT x Long Butt Weld (+100 mm) Ends Zirconium 702 Valve;

Male BSPP x Long Butt Weld (+100 mm) Ends Zirconium 702 Valve;

Male BSPT x Long Butt Weld (+100 mm) Ends Zirconium 702 Valve;

Female NPT (ASME B1.20.1) Ends Zirconium 702 Valve;

Female BSPP (ISO 228-1) Ends Zirconium 702 Valve;

Female BSPT (ISO 7-1) Ends Zirconium 702 Valve;

Socket Weld (ASME B16.11) Ends Zirconium 702 Valve;

Socket Weld (EN 12760) Ends Zirconium 702 Valve;

Female NPT x Socket Weld Ends Zirconium 702 Valve;

Female BSPP x Socket Weld Ends Zirconium 702 Valve;

Female BSPT x Socket Weld Ends Zirconium 702 Valve;

Butt Weld (ASME B16.25) Ends Zirconium 702 Valve;

Butt Weld (EN 12627) Ends Zirconium 702 Valve;

Female NPT x Butt Weld Ends Zirconium 702 Valve;

Female BSPP x Butt Weld Ends Zirconium 702 Valve;

Female BSPT x Butt Weld Ends Zirconium 702 Valve;

Female NPT x Long Butt Weld Ends (+100 mm) Ends Zirconium 702 Valve;

Female BSPP x Long Butt Weld Ends (+100 mm) Ends Zirconium 702 Valve;

Female BSPT x Long Butt Weld Ends (+100 mm) Ends Zirconium 702 Valve;

Long Butt Weld Ends (+100 mm Weld Stub) Ends Zirconium 702 Valve.

 

CE Marking of Zirconium 702 Valve:

CE Marking is Available to Zirconium 702 Valve with a Diameter of DN32 or Larger.

 

Chemical Composition of Zirconium 702 Valve:

For the Chemical Composition of Zirconium 702 Valve, please refer to EN 10204 Type 3.1 certificate.

 

Mechanical Properties of Zirconium 702 Valve:

For the Mechanical Properties of Zirconium 702 Valve, please refer to EN 10204 Type 3.1 certificate.

 

Certificate of Zirconium 702 Valve:

All Zirconium 702 Valve will be delivered with EN 10204 Type 3.1 Certificate.

 

Operation of Zirconium 702 Valve:

Level Operation of Zirconium 702 Valve;

Handwheel Operation of Zirconium 702 Valve;

Pneumatic Actuator Operation of Zirconium 702 Valve;

Electric Actuator Operation of Zirconium 702 Valve.

 

Approvals of Zirconium 702 Valve:

MSS SP-55 Certified of Zirconium 702 Valve;

NACE MR 0175 Certified of Zirconium 702 Valve

API 607 Fire Safe Certified of Zirconium 702 Valve;

ISO 9001 Certified of Zirconium 702 Valve;

PED Certified of Zirconium 702 Valve.

 

Available Upon Request of Zirconium 702 Valve:

NACE MR0175 is available upon request of Zirconium 702 Valve;

ATEX is available upon request of Zirconium 702 Valve;

TA-LUFT is available upon request of Zirconium 702 Valve;

SIL is available upon request of Zirconium 702 Valve;

Degreasing is available upon request of Zirconium 702 Valve;

Fire Safe is available upon request of Zirconium 702 Valve;

Stem Extension is available upon request of Zirconium 702 Valve;

Double Block and Bleed is available upon request of Zirconium 702 Valve.

 

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