Mini Ball Valves – 316 Stainless Steel Compact Ball Valves

Mini ball valves (also known as miniature ball valves, compact ball valves, or small ball valves) are compact shut-off valves designed for small diameter piping and space-restricted installations. Their single-piece body construction provides durability while reducing potential leak paths, making them ideal for industrial, OEM, and process applications.

Manufactured from 316 stainless steel and rated to 1000 WOG, these compact ball valves provide reliable shut-off control across water, oil, gas, and compressed air systems. Their standard (reduced) port design allows for a smaller valve body while maintaining dependable performance.

For larger compact shut-off valves, see our 1 piece ball valves.

For full-size reduced port options, view reduced port ball valves.

Mini Ball Valve Configurations

• Female x Female Mini Ball Valves – connects between two male threaded components.
• Male x Female Mini Ball Valves – allows direct connection into existing threaded systems.

Advantages:

• ● Compact design for space-restricted installations.
• ● Single-piece body construction reduces potential leak paths.
• ● Can be serviced by removing the seat retainer end plug with an Allen Key/Wrench.
•  
• Consideration:
• ● Reduced Flow Rate (Reduced Port)

Features:

• Suitable Media: Water, oil, and gas (WOG)
• Connections: Female and male NPT threaded ends
• Port: Standard (reduced) port design
• Handle: Lever (flag) handle for easy operation
• Seats and Seals: PTFE (Teflon)
• Pressure Rating: 1000 WOG
• Temperature Range: -4°F to 302°F
• Body Material: Stainless steel 316

Mini Valve Dimensions;

• ● Compact design suitable for small and space-restricted installations.
• ● Single-piece body construction.
• ● Standard Bore Ball Valve.

Mini Valve Material List

• ● Body composed of 316 Stainless Steel.
•  ● Seals are Teflon.
• ● Good chemical and temperature resistance.

Why Choose Mini Ball Valves

Mini ball valves are designed for applications where space is limited and compact shut-off control is required.

• Compact size for tight installations
• Durable single-piece body construction
• Reduced leak paths compared to multi-piece valves
• Reliable shut-off for small diameter systems

When to Choose Mini Ball Valves

Mini ball valves are best suited for systems where space constraints and small diameter piping are primary considerations.

• Space-restricted installations
• Small diameter piping systems
• OEM equipment and assemblies
• Applications where full flow is not required

Frequently Asked Questions – Mini Ball Valves

What are mini ball valves used for?

Mini ball valves are used in small diameter piping systems and space-restricted installations where compact size and reliable shut-off are required.

Are mini ball valves full port?

No. Mini ball valves are typically standard (reduced) port, meaning the internal bore is smaller than the pipe size.

Are mini ball valves serviceable?

Yes. Internal components such as seats and seals can be accessed through the threaded end connections.

What is the pressure rating of mini ball valves?

Mini ball valves are typically rated to 1000 WOG for water, oil, and gas applications.

Available Sizes – Mini Ball Valves

Mini ball valves are available in the following sizes for compact shut-off applications:

• 1/4" Mini Ball Valves 
• 1/2" Mini Ball Valves
• 3/4" Mini Ball Valves 

Types of Stainless Steel Ball Valves

Stainless steel ball valves are available in several body styles depending on application requirements:

• 1 Piece Ball Valves – compact valves with reduced port design.
• 2 Piece Ball Valves – full port valves offering higher flow capacity.
• 3 Piece Ball Valves – designed for easy inline maintenance and servicing.

Specifications: