How to Choose Electric Ball Valves Made of Different Materials

 

Different materials for electric ball valves each have their advantages.  Choosing the material for an electric ball valve is important.

You must consider the on-site conditions, taking into account factors such as the medium, operating temperature, operating pressure, and cost.

 

 

 

 

Quick Reference Table for Material Properties of Electric Ball Valves

Stainless Steel Motorized Valve

Key Features: High-temperature resistance, strong corrosion resistance

Suitable Media: Water, chemical materials, and other corrosive media

Suitable Temperature: Suitable for low-to-high temperature conditions, wide temperature range

Working Pressure: Suitable for high-pressure environments

Cost: High

Brass Motorized Valve

Key Features: Easy to machine, commonly used in miniature electric ball valves

Suitable Media: Water

Suitable Temperature: Ambient temperature

Suitable Working Pressure: Standard operating conditions

Cost: Moderate

PVC Motorized Valve

Key Features: Acid and alkali corrosion resistance, lightweight, low cost

Suitable Media: Water, acidic and alkaline chemical materials

Suitable Temperature: Not suitable for high temperatures

Operating Pressure: Low-pressure applications

Cost: Low

Cast Iron/Cast Steel Motorized Valve

Key Features: High material strength, resistant to high temperatures and pressures

Suitable Media: Water, steam, oil-based media

Suitable Temperature: High-temperature applications

Suitable Working Pressure: High-pressure applications

Cost: Relatively low cost

 

Select an electric ball valve made of an unspecified material based on operating conditions.

1. Corrosiveness of the Medium:

For strong chemicals and acids or bases, stainless steel electric ball valves are the best option.

For non-corrosive or slightly corrosive liquids, you can use cast steel or PVC electric ball valves. These are suitable for water treatment systems and oil transport. They are more affordable options.

2. Operating Temperature and Pressure Requirements

High-temperature and high-pressure conditions: For high-temperature steam applications, choose metal-sealed stainless steel electric ball valves.

Standard temperature and pressure conditions: For systems such as HVAC, water treatment, and irrigation, soft-sealed brass electric ball valves meet requirements while offering superior sealing performance.

3. Hygiene and Protection Grade Requirements

Food or Pharmaceutical Industry: Requires sanitary-grade stainless steel electric ball valves to ensure hygiene standards.

Natural Gas Industry: Needs explosion-proof certified motorized valves. These valves must handle high temperatures and high pressure.

 

I hope this article helps you select the right material for your motorized valve. If you have any questions, feel free to contract us and share details about your specific application—such as the medium, temperature, working pressure, and budget—and I may be able to offer more tailored advice.