Two Piece Full Port Ball Valves - 304 Stainless Steel (Threaded NPT)

Two piece full port threaded ball valves in 304 stainless steel are available in sizes from 1/4" to 4", making them suitable for both small equipment connections and larger piping systems. Manufactured from 304 stainless steel, these valves provide reliable shut-off control while maintaining unrestricted full-port flow through the system. Featuring female NPT threaded connections, these valves are designed for easy installation and use with standard piping systems. They are widely used in applications where dependable performance, durability, and consistent flow are essential.

This type of stainless steel threaded ball valve offers a strong balance of corrosion resistance, durability, and cost efficiency. The full-port (full-bore) design allows fluid to pass through with minimal restriction, while the 1000 WOG pressure rating ensures suitability for water, oil, and gas applications. The compact two-piece body design allows for servicing and maintenance, making it a practical solution for long-term use. In the 1000 WOG pressure range, these 304 stainless steel ball valves are often priced competitively with — and in many cases lower than — comparable brass ball valves, while offering improved strength, durability, and corrosion resistance. These 304 stainless steel ball valves are part of our two piece full-port threaded ball valve range, designed for general-purpose industrial and commercial fluid control.

For applications requiring higher corrosion resistance, view our 316 stainless steel ball valves.

For more demanding applications, see our heavy-duty stainless steel ball valves.

For higher pressure systems, view our 2000 PSI ball valves.

Advantages:

• ● More cost-effective than 316 stainless steel for standard applications
• ● Two-piece construction allows access for maintenance and seat replacement
• ● Full port design allows uninterrupted maximum flow 
• ● Suitable for a wide range of general-purpose applications 

Features:

Key specifications and performance features of 2-piece stainless steel ball valves include:

• ● Suitable Media: Water, oil, and gas (WOG)
• ● Threads: Female NPT connections for quick and secure installation
• ● Seats and Seals: PTFE (Teflon) for chemical resistance and smooth operation
• ● Port: Full port (full bore) design supports consistent flow and reduces restriction through the valve
• ● Handle: Lever-operated with locking capability in open or closed position
• ● Operation: Quarter-turn action for fast and reliable shut-off control
• ● Stem: Blow-out proof design for added safety
• ● Pressure Rating: 1000 WOG (1000 PSI / 6.4 MPa) at ambient temperature
• ● Temperature Range: -4°F to 302°F (-20°C to 150°C)
• ● Body Material: Stainless steel 304 (CF8)
• ● Non-Wetted Components: 304 stainless steel

SS304 Two Piece Ball Valve Dimensions

• ● Being made out of two body parts, it can be taken apart for servicing and cleaning.
• ● The full port design maintains a consistent internal diameter, allowing flow to pass through without restriction.
• ● 304 stainless steel is widely used for general-purpose full port valve applications because it provides an effective balance of corrosion resistance, durability, and cost-efficiency.

SS304 Two Piece Ball Valve Material List

• ● Manufactured from 304 stainless steel for strength and corrosion resistance
• ● More cost-effective than 316 stainless steel while remaining suitable for most general-purpose applications
• ● PTFE (Teflon) seals provide chemical resistance and smooth operation

SS304 Two Piece Ball Valve Pressure Chart

● Pressure ratings are based on operating temperatures; refer to the chart below.

Why Choose 304 Stainless Steel Ball Valves

304 stainless steel ball valves are commonly selected for general-purpose applications where reliable performance and cost-efficiency are important, and exposure to highly corrosive media is limited. They are widely used in water systems, compressed air lines, and general fluid handling applications. Stainless steel 304 offers excellent strength, durability, and corrosion resistance at a lower cost than 316, which makes it ideal for situations where exposure to certain harsh chemicals is limited. Choosing the correct material and valve configuration helps ensure long-term performance, reliability, and system efficiency. For applications requiring enhanced corrosion resistance, consider 316 stainless steel ball valves.

• Cost-effective compared to 316 stainless steel
• Good corrosion resistance for standard applications
• Suitable for water, air, and general fluid systems
• Durable and long-lasting under normal conditions

When to Choose 304 Stainless Steel Ball Valves

304 stainless steel ball valves are typically selected for general-purpose fluid handling where good corrosion resistance, durability, and cost efficiency are required. They are well-suited to systems handling water, air, oil, and other non-aggressive media where operating conditions are stable and exposure to harsh chemicals is limited. If your system requires increased durability or frequent operation, consider heavy-duty stainless steel ball valves.

• General industrial and commercial fluid systems
• Water, air, and oil service applications
• Installations requiring a balance of performance and cost
• Systems where full port flow and reliable shut-off control are important 

Common Applications

• Water distribution and plumbing systems
• Compressed air and pneumatic systems
• Oil and fuel transfer lines
• General industrial fluid handling
• Equipment, machinery, and OEM installations

Industries

• Water treatment and plumbing
• HVAC and mechanical systems
• General manufacturing
• Oil and gas (non-corrosive environments)
• Equipment and machinery

Brass vs 304 Stainless Steel Ball Valves 

Brass and 304 stainless steel ball valves are both widely used, but they differ in durability, corrosion resistance, and application suitability. The table below outlines the key differences.

In the 1000 WOG pressure class, 304 stainless steel ball valves are often priced similarly to — and in many cases lower than — comparable brass valves, while offering improved strength, durability, and corrosion resistance. They are also commonly selected for applications requiring lead-free materials and long-term reliability in demanding environments. For applications requiring higher pressure capacity, consider high-pressure 2000 PSI ball valves.

304 vs 316 Stainless Steel Ball Valves

304 and 316 stainless steel ball valves are designed for different operating conditions. 304 is commonly used in general service where corrosion exposure is limited, while 316 is preferred in environments involving chemicals, moisture, or more aggressive media. Selecting the correct grade depends on the application and service conditions.

Frequently Asked Questions

Where are 304 stainless steel ball valves most often used?

304 stainless steel ball valves are usually chosen for day-to-day service in systems carrying water, air, oil, and other non-aggressive media. They are a practical fit for installations where good corrosion resistance is needed, but the service conditions are not especially harsh.

Can 304 stainless steel ball valves be used with chemicals?

They can perform well with many milder fluids, but material compatibility should always be checked against the specific media. Where the service involves stronger chemical exposure, chlorides, or similar corrosive conditions, 316 stainless steel is often the safer material choice.

Are 304 stainless steel ball valves full port?

Yes, these valves feature a full port (full bore) design, allowing unrestricted flow and minimal pressure drop through the system.

How does a 304 stainless steel ball valve differ from a 316 version?

The difference is mainly in how each material handles more demanding environments. A 304 valve is commonly selected for standard service where corrosion risk is moderate, while a 316 valve is typically chosen when the system calls for added protection against more aggressive conditions.

Can 304 stainless steel ball valves be installed outdoors?

Yes, they are often used in outdoor installations, but the surrounding environment matters. In cleaner and less severe conditions, they generally perform well, whereas locations with constant dampness, salt exposure, or more severe weathering usually favor 316 stainless steel.

What pressure rating applies to these 304 stainless steel ball valves?

These valves are rated to 1000 WOG, indicating they are suitable for water, oil, and gas service within that pressure class at normal temperatures.

Types of Ball Valves

Stainless steel ball valves are available in several body styles, each designed for different installation, maintenance, and flow requirements:

• 1 Piece Ball Valves – compact, single-body design commonly used for reduced port applications.
• 2 Piece Ball Valves – full port valves offering a balance of performance, cost, and serviceability.
• 3 Piece Ball Valves – designed for easy maintenance without removing the valve from the pipeline.

Specifications: