Stainless Steel vs Brass Motorized Ball Valve: A Complete Buyer’s Guide

In water systems, HVAC, agricultural irrigation, and smart water control equipment, the “manual ball valve” has become a core component with widespread application.

So, should you choose a brass manual ball valve or a stainless steel manual ball valve?

 

 

 

 

 

Material Overview: Key Differences Between Brass and Stainless Steel

Brass Motorized Ball Valve

Comprising an electric actuator and brass valve body

Commonly used in potable water, HVAC, agricultural irrigation, etc.

Lower cost

Higher material hardness

Stainless Steel Motorized Ball Valve

Primarily made of SS304 or SS316

Highly corrosion-resistant, suitable for chemical media

Superior material strength

Higher cost but extended service life

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Corrosion Resistance

Corrosion Resistance of Brass

Not suitable for highly corrosive media such as acids or alkalis

Performs stably with tap water, purified water, and similar media

Suitable for industrial water treatment systems

Corrosion Resistance of Stainless Steel

Can be used with corrosive liquids

Highly resistant to chloride ion corrosion, suitable for seawater treatment

For environments involving seawater, brine, or weakly corrosive chemical liquids, select stainless steel valves.

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Cost Comparison

Brass motorized valves offer lower costs

Priced at 60%-70% of stainless steel equivalents

For water treatment projects, brass valves provide better value for money

Stainless steel motorized valves carry higher costs

Suitable for projects with ample budgets

Ideal for projects demanding superior product quality

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Valve Service Life and Stability

Brass

Long service life in water treatment systems

Suitable for automated systems with high open/close frequency

High cost-effectiveness

Stainless Steel

Greater wear resistance

Resistant to rust

Enhanced stability in complex operating conditions

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Parameters to Consider When Purchasing Motorized Ball Valves

Valve Body Material: Brass/SS304/SS316/PVC

Nominal Diameter: DN8-DN50

Voltage: 12V/24V/220V/380V

Actuation Speed: 3-5 seconds/8 seconds/10 seconds

Torque: 1.5-10 Nm

Protection Rating: IP65/IP67

Service Life & Warranty: Whether it achieves 100,000 cycles and warranty availability

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Why do global customers choose Jinfeng Valve?

Over 100,000 switching cycles lifespan

Full product range available in brass, stainless steel, and PVC

High-speed switching valves (3 seconds) available

OEM/ODM customization services supported

Short delivery lead times

MOQ as low as one piece; small orders shipped by air freight.