Zirconium pumps and valves

Zirconium pumps and valves

Zirconium pumps and valves can be used in chlor alkali production due to their excellent corrosion resistance properties. Zirconium is highly resistant to a wide range of corrosive environments, including concentrated hydrochloric acid and caustic soda solutions, making it a popular choice for equipment in the chlor alkali industry. Zirconium pumps and valves can also be used in other chemical processing applications that involve corrosive substances. However, zirconium can be expensive compared to other materials, and may not be necessary for every application.

Zirconium pumps

Zirconium pumps are resistant to both acidic and alkaline solutions, including hydrochloric acid and caustic soda, and can withstand high temperatures and pressures.

Zirconium pumps can be used in various applications in chlor alkali plants, such as in the transfer of brine, the circulation of electrolyte, and the dosing of chemical additives. They are also used in other industries where corrosion resistance is critical, such as in the production of sulfuric acid, phosphoric acid, and other chemicals.

The specifications for zirconium pumps used in chlor alkali plants may vary depending on the specific requirements of the plant and the application. However, some general specifications for zirconium pumps include:

1. Capacity: The pump capacity is usually measured in gallons per minute (GPM) or liters per minute (LPM), and is determined by the flow rate required for the application.
2. Head: The head of the pump is the pressure required to pump the fluid to the desired height or distance. It is usually measured in feet or meters.
3. Material of construction: Zirconium is used as the primary material of construction for the pump body, impeller, and other wetted parts. The material of construction for the non-wetted parts, such as the motor and casing, may vary.
4. Seal type: The seal type is an important consideration for zirconium pumps, as it must be compatible with the corrosive fluids being pumped. Mechanical seals and packing seals are commonly used in zirconium pumps.
5. Motor specifications: The motor specifications may vary depending on the power requirements of the pump and the application. The motor should be designed for use in corrosive environments.
6. Operating temperature and pressure: The operating temperature and pressure of the pump should be within the limits specified for zirconium.
7. Testing and certification: The pump should be tested and certified to ensure it meets the required standards for use in chlor alkali plants.

It’s worth noting that the specifications may vary depending on the manufacturer and the specific application.

Zirconium valves

Zirconium valves are commonly used in chlor alkali plants due to their excellent corrosion resistance to chlorine and other strong oxidizing agents. They are typically used in applications such as chlorine drying towers, chlorine liquefaction and vaporization systems, and other processes that involve the handling of chlorine gas or other corrosive chemicals.

Zirconium valves offer superior resistance to both uniform and localized corrosion, as well as stress corrosion cracking (SCC) and hydrogen embrittlement. They also have high mechanical strength and good wear resistance, making them ideal for use in harsh environments.

Common types of zirconium valves used in chlor alkali plants include ball valves, butterfly valves, gate valves, globe valves, and check valves. These valves are typically made with zirconium alloys such as Zr702, Zr705, or Zr702-Sn, which are specifically designed for use in highly corrosive environments.

Zirconium valves used in chlor alkali plants may have various specifications depending on their intended application and the specific requirements of the plant. Some common specifications for zirconium valves include:

1. Material: Zirconium valves are typically made from Zirconium 702, which is a commercially pure zirconium alloy with excellent corrosion resistance.
2. Pressure rating: Zirconium valves can be designed to handle a range of pressure ratings, depending on the application. Common pressure ratings include ANSI Class 150, 300, and 600.
3. Temperature range: Zirconium valves can be designed to operate in a range of temperatures, depending on the application. Common temperature ranges include -50°C to 300°C (-58°F to 572°F).
4. End connections: Zirconium valves can be designed with a range of end connections, including flanged, threaded, and welded connections.
5. Valve type: Zirconium valves can be designed as gate valves, globe valves, ball valves, or other types of valves, depending on the specific application.
6. Actuation: Zirconium valves can be actuated manually or with pneumatic, electric, or hydraulic actuators, depending on the specific application.
7. Compliance: Zirconium valves used in chlor alkali plants may need to comply with various industry standards, such as ANSI, ASME, and ASTM standards, as well as local and national regulations.