C95800 is a nickel-aluminum bronze alloy with a unique combination of properties that has led to its widespread application across multiple industrial sectors. Freeman Valve's C95800 ANSI gate valve offers the following significant advantages:

1.1 Excellent corrosion resistance:

a. Freeman Valve's C95800 ANSI gate valve is highly resistant to seawater, saltwater, acidic environments (such as sulfuric acid and hydrochloric acid), and alkaline media, making them particularly suitable for marine environments.

b. Freeman Valve's C95800 ANSI gate valve is superior to ordinary bronze or stainless steel in cavitation and erosion corrosion resistance.

1.2 High strength and wear resistance:

Freeman Valve's C95800 ANSI gate valve offers high tensile strength (over 620 MPa) and a hardness of over HB 200, making them suitable for high-load, high-wear applications. They also exhibit excellent fatigue resistance, making them suitable for dynamically loaded components.

1.3 Biocompatibility and biofouling resistance:

Freeman Valve's C95800 ANSI gate valve is resistant to marine biofouling when used in marine components, reducing maintenance requirements.

1.4 Thermal conductivity and electrical conductivity:

Freeman Valve's C95800 ANSI gate valve offers superior thermal conductivity compared to stainless steel, making them suitable for components requiring heat dissipation.

2. When using C95800 ANSI gate valve, please note the following:

2.1 Be aware of the potential risk of stress corrosion cracking (SCC) in C95800 ANSI gate valve: Stress corrosion cracking may occur in certain environments (such as ammonia and high stress), requiring heat treatment to mitigate the risk.

2.2 Avoid using C95800 ANSI gate valve in concentrated nitric acid, high-temperature, high-concentration hydrochloric acid, or media containing ammonia (which is susceptible to SCC).

3. Mechanism of acid corrosion resistance of C95800 ANSI gate valve:

The corrosion resistance of C95800 ANSI gate valve primarily relies on the dense oxide film (Al₂O₃ + Cu₂O) formed on their surface, which remains stable in acidic environments:

3.1 Role of Aluminum (8.5-9.5%) in C95800 ANSI gate valve: Promotes the formation of the Al₂O₃ film, inhibiting acidic media from corroding the substrate.

3.2 Role of Nickel (4-6%) in C95800 ANSI gate valve: Enhances the stability of the passivation film, especially in acidic environments containing sulfur and chlorine.

3.3 Contribution of Iron and Manganese in C95800 ANSI gate valve: Refines the grain size and reduces the risk of localized corrosion.

4. C95800 ANSI gate valve behavior in typical acidic environments:

4.1 C95800 ANSI gate valve for dilute sulfuric acid (H₂SO₄): Excellent corrosion resistance (≤10% concentration, room temperature), superior to ordinary bronze. Corrosion rates accelerate at high concentrations or temperatures. However, consideration should be given to factors such as temperature, concentration, and oxidizing properties (for example, air accelerates corrosion).

4.2 C95800 ANSI gate valve for hydrochloric acid (HCl): Average corrosion resistance (especially at concentrations >5% or high temperatures). Cl⁻ can damage the passivation film, but superior to 304 stainless steel. However, consideration should be given to factors such as Cl⁻ concentration, pH, and flow rate (erosion corrosion).

4.3 C95800 ANSI gate valve for phosphoric acid (H₃PO₄): Excellent performance, suitable for low to medium concentrations of phosphoric acid. However, consideration should be given to factors such as impurities (e.g., fluoride can exacerbate corrosion).

4.4 C95800 ANSI gate valve for nitric acid (HNO₃): Not corrosion-resistant (strong oxidizing acids damage the Cu-Al film), limited to very low concentrations. However, attention should be paid to concentration; rapid corrosion occurs at concentrations >5%.

4.5 C95800 ANSI gate valve for organic acids (e.g., acetic acid): Excellent corrosion resistance, suitable for food/chemical equipment. However, consideration should be given to key factors such as temperature and oxygen content.

5 Summary:

The C95800 ANSI gate valve's corrosion resistance in acidic media stems from its Al-Ni synergistic passivation effect, particularly in moderate to low concentrations of non-oxidizing acids (e.g., H₂SO₄, H₃PO₄) and weak acids containing Cl⁻. However, strong oxidizing acids should be avoided. Its comprehensive performance (corrosion resistance, wear resistance, and strength) makes it a cost-effective choice for acidic environments in chemical, marine, and other fields. However, for extreme conditions, nickel-based alloys or titanium should be considered.

Design Standard of Nickel Aluminum Bronze C95800 Gate Valve:

Design Acc. to ASME B16.34 (ANSI Standard Nickel Aluminum Bronze C95800 Gate Valve);

Design Acc. to EN-12516-1/2 (EN Standard Nickel Aluminum Bronze C95800 Gate Valve, DIN Standard Nickel Aluminum Bronze C95800 Gate Valve).

Test Standard of Nickel Aluminum Bronze C95800 Gate Valve:

Test Acc. to API 598 (ANSI Standard Nickel Aluminum Bronze C95800 Gate Valve);

Test Acc. to EN 12266-1/2 (EN Standard Nickel Aluminum Bronze C95800 Gate Valve, DIN Standard Nickel Aluminum Bronze C95800 Gate Valve).

Surface Finishing of Nickel Aluminum Bronze C95800 Gate Valve:

All Nickel Aluminum Bronze C95800 Gate Valve surface is finely machined to achieve the required roughness and conforms to standard MSS SP-110.

Size of Nickel Aluminum Bronze C95800 Gate Valve:

From DN1/4’’ to 48’’ (ANSI Standard Nickel Aluminum Bronze C95800 Gate Valve);

From DN8 to DN1200 (EN Standard Nickel Aluminum Bronze C95800 Gate Valve, DIN Standard Nickel Aluminum Bronze C95800 Gate Valve).

Face to Face of Nickel Aluminum Bronze C95800 Gate Valve:

Face to Face Acc. to ASME B16.10 (ANSI Standard Nickel Aluminum Bronze C95800 Gate Valve);

Face to Face Acc. to EN 558-1 (EN Standard Nickel Aluminum Bronze C95800 Gate Valve, DIN Standard Nickel Aluminum Bronze C95800 Gate Valve).

Pressure Rating of Nickel Aluminum Bronze C95800 Gate Valve:

ANSI Class 150 Nickel Aluminum Bronze C95800 Gate Valve (ANSI Standard Nickel Aluminum Bronze C95800 Gate Valve);

ANSI Class 300 Nickel Aluminum Bronze C95800 Gate Valve (ANSI Standard Nickel Aluminum Bronze C95800 Gate Valve);

ANSI Class 600 Nickel Aluminum Bronze C95800 Gate Valve (ANSI Standard Nickel Aluminum Bronze C95800 Gate Valve);

ANSI Class 800 Nickel Aluminum Bronze C95800 Gate Valve (ANSI Standard Nickel Aluminum Bronze C95800 Gate Valve);

ANSI Class 900 Nickel Aluminum Bronze C95800 Gate Valve (ANSI Standard Nickel Aluminum Bronze C95800 Gate Valve);

ANSI Class 1500 Nickel Aluminum Bronze C95800 Gate Valve (ANSI Standard Nickel Aluminum Bronze C95800 Gate Valve);

ANSI Class 2500 Nickel Aluminum Bronze C95800 Gate Valve (ANSI Standard Nickel Aluminum Bronze C95800 Gate Valve);

EN 1092 PN 16 Nickel Aluminum Bronze C95800 Gate Valve (EN Standard Nickel Aluminum Bronze C95800 Gate Valve, DIN Standard Nickel Aluminum Bronze C95800 Gate Valve);

EN 1092 PN 25 Nickel Aluminum Bronze C95800 Gate Valve (EN Standard Nickel Aluminum Bronze C95800 Gate Valve, DIN Standard Nickel Aluminum Bronze C95800 Gate Valve);

EN 1092 PN 40 Nickel Aluminum Bronze C95800 Gate Valve (EN Standard Nickel Aluminum Bronze C95800 Gate Valve, DIN Standard Nickel Aluminum Bronze C95800 Gate Valve);

EN 1092 PN 63 Nickel Aluminum Bronze C95800 Gate Valve (EN Standard Nickel Aluminum Bronze C95800 Gate Valve, DIN Standard Nickel Aluminum Bronze C95800 Gate Valve);

EN 1092 PN 100 Nickel Aluminum Bronze C95800 Gate Valve (EN Standard Nickel Aluminum Bronze C95800 Gate Valve, DIN Standard Nickel Aluminum Bronze C95800 Gate Valve);

EN 1092 PN 160 Nickel Aluminum Bronze C95800 Gate Valve (EN Standard Nickel Aluminum Bronze C95800 Gate Valve, DIN Standard Nickel Aluminum Bronze C95800 Gate Valve);

EN 1092 PN 250 Nickel Aluminum Bronze C95800 Gate Valve (EN Standard Nickel Aluminum Bronze C95800 Gate Valve, DIN Standard Nickel Aluminum Bronze C95800 Gate Valve);

EN 1092 PN 320 Nickel Aluminum Bronze C95800 Gate Valve (EN Standard Nickel Aluminum Bronze C95800 Gate Valve, DIN Standard Nickel Aluminum Bronze C95800 Gate Valve);

EN 1092 PN 400 Nickel Aluminum Bronze C95800 Gate Valve (EN Standard Nickel Aluminum Bronze C95800 Gate Valve, DIN Standard Nickel Aluminum Bronze C95800 Gate Valve).

Working Temperature of Nickel Aluminum Bronze C95800 Gate Valve:

Please refer to the "Temperature and Pressure Curve of Nickel Aluminum Bronze C95800 Gate Valve" for temperature and pressure changes.

Ends Connection of Nickel Aluminum Bronze C95800 Gate Valve:

ANSI Flange Ends Nickel Aluminum Bronze C95800 Gate Valve;

ANSI Integral Flange Ends Nickel Aluminum Bronze C95800 Gate Valve;

ANSI Welded Flange Ends Nickel Aluminum Bronze C95800 Gate Valve;

Butt Weld (ASME B16.25) Ends Nickel Aluminum Bronze C95800 Gate Valve;

Butt Weld x ANSI Flange Ends Nickel Aluminum Bronze C95800 Gate Valve;

EN 1092 Flange Ends Nickel Aluminum Bronze C95800 Gate Valve;

EN 1092 Integral Flange Ends Nickel Aluminum Bronze C95800 Gate Valve;

EN 1092 Welded Flange Ends Nickel Aluminum Bronze C95800 Gate Valve;

Butt Weld (EN 12627) Ends Nickel Aluminum Bronze C95800 Gate Valve;

Butt Weld (ISO 1127) Ends Nickel Aluminum Bronze C95800 Gate Valve;

Butt Weld x EN 1092 Flange Ends Nickel Aluminum Bronze C95800 Gate Valve;

Male NPT (ASME B1.20.1) Ends Nickel Aluminum Bronze C95800 Gate Valve;

Male BSPP (ISO 228-1) Ends Nickel Aluminum Bronze C95800 Gate Valve;

Male BSPT (ISO 7-1) Ends Nickel Aluminum Bronze C95800 Gate Valve;

Male NPT x Female NPT Ends Nickel Aluminum Bronze C95800 Gate Valve;

Male BSPP x Female BSPP Ends Nickel Aluminum Bronze C95800 Gate Valve;

Male BSPT x Female BSPT Ends Nickel Aluminum Bronze C95800 Gate Valve;

Male NPT x Long Butt Weld (+100 mm) Ends Nickel Aluminum Bronze C95800 Gate Valve;

Male BSPP x Long Butt Weld (+100 mm) Ends Nickel Aluminum Bronze C95800 Gate Valve;

Male BSPT x Long Butt Weld (+100 mm) Ends Nickel Aluminum Bronze C95800 Gate Valve;

Female NPT (ASME B1.20.1) Ends Nickel Aluminum Bronze C95800 Gate Valve;

Female BSPP (ISO 228-1) Ends Nickel Aluminum Bronze C95800 Gate Valve;

Female BSPT (ISO 7-1) Ends Nickel Aluminum Bronze C95800 Gate Valve;

Socket Weld (ASME B16.11) Ends Nickel Aluminum Bronze C95800 Gate Valve;

Socket Weld (EN 12760) Ends Nickel Aluminum Bronze C95800 Gate Valve;

Female NPT x Socket Weld Ends Nickel Aluminum Bronze C95800 Gate Valve;

Female BSPP x Socket Weld Ends Nickel Aluminum Bronze C95800 Gate Valve;

Female BSPT x Socket Weld Ends Nickel Aluminum Bronze C95800 Gate Valve;

Butt Weld (ASME B16.25) Ends Nickel Aluminum Bronze C95800 Gate Valve;

Butt Weld (EN 12627) Ends Nickel Aluminum Bronze C95800 Gate Valve;

Female NPT x Butt Weld Ends Nickel Aluminum Bronze C95800 Gate Valve;

Female BSPP x Butt Weld Ends Nickel Aluminum Bronze C95800 Gate Valve;

Female BSPT x Butt Weld Ends Nickel Aluminum Bronze C95800 Gate Valve;

Female NPT x Long Butt Weld (+100 mm) Ends Nickel Aluminum Bronze C95800 Gate Valve;

Female BSPP x Long Butt Weld (+100 mm) Ends Nickel Aluminum Bronze C95800 Gate Valve;

Female BSPT x Long Butt Weld (+100 mm) Ends Nickel Aluminum Bronze C95800 Gate Valve;

Long Butt Weld (+100 mm Weld Stub) Ends Nickel Aluminum Bronze C95800 Gate Valve.

CE Marking of Nickel Aluminum Bronze C95800 Gate Valve:

CE Marking is Available to Nickel Aluminum Bronze C95800 Gate Valve with a Diameter of DN32 or Larger.

Chemical Composition of Nickel Aluminum Bronze C95800 Gate Valve:

For the Chemical Composition of Nickel Aluminum Bronze C95800 Gate Valve, please refer to EN 10204 Type 3.1 certificate.

Mechanical Properties of Nickel Aluminum Bronze C95800 Gate Valve:

For the Mechanical Properties of Nickel Aluminum Bronze C95800 Gate Valve, please refer to EN 10204 Type 3.1 certificate.

Certificate of Nickel Aluminum Bronze C95800 Gate Valve:

All Nickel Aluminum Bronze C95800 Gate Valve will be delivered with EN 10204 Type 3.1 Certificate.

Approvals of Nickel Aluminum Bronze C95800 Gate Valve:

MSS SP-110 Certified of Nickel Aluminum Bronze C95800 Gate Valve;

NACE MR 0175 Certified of Nickel Aluminum Bronze C95800 Gate Valve

API 607 Fire Safe Certified of Nickel Aluminum Bronze C95800 Gate Valve;

ISO 9001 Certified of Nickel Aluminum Bronze C95800 Gate Valve;

PED Certified of Nickel Aluminum Bronze C95800 Gate Valve.

Available Upon Request of Nickel Aluminum Bronze C95800 Gate Valve:

NACE MR0175 is available upon request of Nickel Aluminum Bronze C95800 Gate Valve;

ATEX is available upon request of Nickel Aluminum Bronze C95800 Gate Valve;

TA-LUFT is available upon request of Nickel Aluminum Bronze C95800 Gate Valve;

SIL is available upon request of Nickel Aluminum Bronze C95800 Gate Valve;

Degreasing is available upon request of Nickel Aluminum Bronze C95800 Gate Valve;

Fire Safe is available upon request of Nickel Aluminum Bronze C95800 Gate Valve;

Stem Extension is available upon request of Nickel Aluminum Bronze C95800 Gate Valve;

Double Block and Bleed is available upon request of Nickel Aluminum Bronze C95800 Gate Valve.