ASME Gr5 Gr7 Two-Way Ball Valve Titanium Industrial Ball Valve High Pressure Release Valve
The ASME Gr5 Gr7 Two-Way Ball Valve made from Gr5 (Ti-6Al-4V) and Gr7 (Ti-0.3Mo-0.8Ni) titanium alloys is specifically designed for high-pressure release applications. This valve combines the strength and durability of Gr5 titanium, with the added corrosion resistance and high-temperature capabilities of Gr7 titanium, making it an ideal solution for industries that require robust performance under extreme conditions such as high pressure and harsh environments.

Overview of Gr5 and Gr7 Titanium
- Gr5 Titanium (Ti-6Al-4V): Known for its outstanding strength-to-weight ratio and excellent fatigue resistance, Gr5 titanium is a titanium alloy that is used widely in aerospace, automotive, and industrial applications that demand high strength and durability.
- Gr7 Titanium (Ti-0.3Mo-0.8Ni): Gr7 titanium is an alloy of titanium that includes small amounts of Molybdenum (Mo) and Nickel (Ni), enhancing its corrosion resistance, especially in environments exposed to chloride-induced stress corrosion cracking. It is ideal for applications where both high corrosion resistance and strength are critical.
Key Features:
- High Pressure Release Valve: Specifically designed to handle high-pressure situations and release pressure safely and effectively, making it ideal for industries like oil and gas, petrochemical, and chemical manufacturing.
- Gr5 and Gr7 Titanium Alloys: Combines the superior strength of Gr5 with the corrosion resistance of Gr7, making it suitable for demanding applications in both moderate and harsh environments.
- Two-Way Flow Control: Offers reliable bi-directional flow control for efficient fluid management in critical applications.
- Temperature Resistance: The materials used in this valve offer excellent high-temperature performance, withstanding temperatures up to 450°C.
- Compact and Durable Design: Designed for industrial environments that require compact, yet durable, high-performance valve solutions.

Key Specifications:
Specification | Details |
Valve Type | Two-Way Ball Valve |
Material Options | Gr5 Titanium (Ti-6Al-4V), Gr7 Titanium (Ti-0.3Mo-0.8Ni) |
Size | DN 15 (½ inch) |
Pressure Rating | ASME Class 150, 300, High-Pressure Release |
Temperature Range | -50°C to 450°C |
Flow Control | Bi-directional Flow |
End Connections | Flanged, Threaded, or Welded |
Sealing Type | Leak-proof, high-performance design |
Application | High-Pressure Release, Oil & Gas, Petrochemical, Chemical Processing, Marine |
Standard Compliance | ASME B16.34, API 6D |
Material Comparison: Gr5 vs Gr7 Titanium
Property | Gr5 Titanium (Ti-6Al-4V) | Gr7 Titanium (Ti-0.3Mo-0.8Ni) |
Tensile Strength | 900 MPa (minimum) | 830 MPa (minimum) |
Yield Strength | 830 MPa (minimum) | 750 MPa (minimum) |
Elongation | 10-14% | 12-16% |
Density | 4.43 g/cm³ | 4.47 g/cm³ |
Corrosion Resistance | Excellent for general corrosion environments | Superior corrosion resistance in chloride-rich environments |
Fatigue Strength | Excellent | Good |
Temperature Resistance | Excellent (up to 450°C) | Excellent (up to 450°C) |
Performance Advantages
- High Pressure Release: Designed specifically for high-pressure applications, this valve ensures safe pressure relief and minimizes the risk of damage to pipes and other equipment.
- Corrosion Resistance: Both Gr5 and Gr7 titanium alloys are known for their excellent corrosion resistance, with Gr7 particularly offering enhanced resistance to chloride-induced stress corrosion cracking.
- Strength and Durability: Gr5 provides excellent strength and fatigue resistance, while Gr7 enhances overall performance by improving corrosion resistance, especially in aggressive chemical environments.
- High Temperature Resistance: Suitable for high-temperature applications, with both alloys providing excellent performance in temperatures up to 450°C, ensuring durability even under extreme heat conditions.
- Compact and Efficient Design: With its DN 15 (½ inch) size, this valve is compact yet highly efficient, making it ideal for space-constrained installations.
Applications
- Oil & Gas Industry: Used in high-pressure pipelines, refineries, and offshore platforms where pressure release and corrosion resistance are crucial.
- Chemical Processing: Perfect for controlling fluid flows and managing high-pressure systems in chemical manufacturing, particularly in the presence of aggressive chemicals.
- Petrochemical Industry: In environments where valves must handle extreme pressures and ensure safe release, particularly for chemicals that may be corrosive or hazardous.
- Marine Applications: Gr7 titanium’s resistance to chloride-induced corrosion makes it ideal for marine applications, including offshore installations and shipbuilding.
- Aerospace: Given the high strength and lightweight nature of Gr5, this valve is also used in aerospace applications where pressure release and minimal weight are essential.
Material Properties Overview
Property | Gr5 Titanium (Ti-6Al-4V) | Gr7 Titanium (Ti-0.3Mo-0.8Ni) |
Tensile Strength | 900 MPa | 830 MPa |
Yield Strength | 830 MPa | 750 MPa |
Density | 4.43 g/cm³ | 4.47 g/cm³ |
Corrosion Resistance | Excellent for general conditions | Exceptional in chloride environments |
Fatigue Strength | Excellent | Good |
Elongation | 10-14% | 12-16% |
Temperature Resistance | Excellent (up to 450°C) | Excellent (up to 450°C) |
Summary
The ASME Gr5 Gr7 Two-Way Ball Valve is an excellent choice for high-pressure release and corrosion-resistant applications. The combination of Gr5 (Ti-6Al-4V) and Gr7 (Ti-0.3Mo-0.8Ni) titanium alloys ensures that the valve provides both high strength and enhanced resistance to aggressive environments, including those exposed to high pressures and corrosive fluids. The Gr7 titanium variant provides superior protection against chloride stress corrosion cracking, making this valve ideal for chemical processing, offshore, and marine industries where pressure release and corrosion resistance are critical.