Heavy Duty Small Port Ball Valve
A compact three-piece ball valve for small pipes in oil and gas, chemical plants, power plants, instrument lines and utility systems. Sizes run from DN15 to DN50, with full or reduced bore, socket-weld, butt-weld or NPT threaded ends, and soft or metal seats.
Why Choose This Valve
Easy to maintain and available for different working conditions
The three-piece body is easy to take apart for maintenance. You can choose the material, seat, connection and operating method to suit your pipe and fluid.
Easier Maintenance
The middle section can be removed while the two pipe ends stay in place. This makes seat, ball and seal replacement easier.
Fire-Safe Option Available
A fire-safe version can be supplied for oil, gas and other flammable fluids when the order requires it.
Safer Stem Design
The stem is held inside the valve body to help prevent it from being pushed out. An anti-static design is also available for suitable systems.
Easy to Add an Actuator
The valve can be prepared for an air, electric or hydraulic actuator when it needs to be opened and closed remotely.
Product Specifications
Choose by size, pressure, material and connection
Send us the pipe size, working pressure, fluid, temperature, connection and material you need. We will check the suitable valve before quoting.
Soft Seat
Choose reinforced PTFE, PEEK, DEVLON or NYLON when you need tight shutoff and the seat material is suitable for the fluid.
Metal Seat
Choose a metal seat for higher temperatures, dirty fluids, particles or working conditions that can damage a soft seat.
Full Bore or Reduced Bore
Full bore gives a larger flow path. Reduced bore is more compact and can be used when a smaller internal opening is acceptable.
Connections and Operation
Available with socket-weld, butt-weld or NPT threaded ends. The valve can use a hand lever, locking device or actuator.
- Product Type
- Heavy Duty Small Port Ball Valve / Three-Piece Ball Valve
- Nominal Size Range
- NPS 1/2"–2" (DN15–DN50)
- Pressure Rating
- ASME Class 150 / 300 / 600 / 800
- Flow Port
- Full-Bore (FB) or Reduced-Bore (RB)
- Body Construction
- Three-piece body for serviceable inline maintenance
- Connection Types
- Socket Weld (SW), Butt Weld (BW), Threaded (NPT)
- Body Materials
- Carbon Steel A105, Stainless Steel F304 / F316, Duplex Stainless Steel F51 / F55
- Ball Materials
- ASTM A182 F304 / F316 / F51; surface hardening or overlay available for metal-seat service
- Seat Materials
- Reinforced PTFE, PEEK, DEVLON, NYLON or Metal-to-Metal
- Stem Materials
- ASTM A182 F6a, F51, XM-19, 304 / 316 Stainless Steel or Inconel 718
- Temperature Range
- Approximately −29°C to +350°C, depending on seat, seal, material and application details
- Operation
- Manual lever or ISO 5211-mounted pneumatic, electric and hydraulic actuation
- Reference Standards
- API 608, ASME B16.34 and ASME B16.10 as applicable to the selected configuration
- Testing
- API 598 pressure testing; additional fire-safe or fugitive-emission documentation is available by configuration where specified
- Special Service Options
- NACE MR0175 / ISO 15156 materials review, project marking, tag numbers and additional inspection arrangements on request
How to Choose
Choose the right seat and valve type
Choose the valve by the fluid, temperature, amount of particles, how often it will operate and how tightly it must close.
For clean liquids and gases
A soft seat is often used for clean liquids, gas and utility lines. It gives tight shutoff and normally needs less force to operate.
For higher temperature shutoff duties, compare the forged metal seated ball valve.
For heat, particles and harder service
A metal seat is better for high temperatures, particles and fluids that may wear or damage a soft seat.
For very low-temperature service, see the forged cryogenic ball valve range.
When a different valve design is needed
Some pipe systems need double isolation, a cryogenic design, a larger valve or another body type instead of this small three-piece valve.
For two shutoff points and one bleed point in a compact unit, see the DBB compact manifold. For forged ball valve options, see the soft seated series or the metal seated series.
Factory and Order Support
What CARILO can provide with your order
CARILO manufactures industrial valves in Wenzhou, China. We can help check the valve model, arrange pressure testing, prepare material and inspection documents, and pack the goods for export. You can also read more about our services.
Where This Valve Is Used
Common uses in industrial piping
The final valve must match the working pressure, temperature, fluid and material requirements of the pipe system.
Oil & Gas Production
Used on instrument lines, wellhead skids, chemical injection lines, utility pipes and other small oil and gas pipes.
Refining & Petrochemical
Used for process shutoff, solvents, utility lines, additives and other chemical plant services.
Power & Utility Systems
Used for condensate, steam tracing, lubricating oil, fuel gas, instrument air and cooling lines.
Hydraulic & Instrumentation
Used on hydraulic units, pressure lines, instrument panels, analyser skids and small pipes that need manual or automatic shutoff.
Send Your Requirements
Tell us the size, pressure, fluid, temperature, material, connection, quantity and whether you need an actuator.
Check the Valve Selection
We check the valve size, seat, material and pressure rating against the information you provide.
Production and Testing
The valve parts are machined and assembled, then the finished valve is pressure-tested and checked.
Packing and Shipping
The valves are protected for export shipping. Delivery time depends on the model, material, quantity and inspection needs.
Related Products
Other CARILO valves you may need
Choose another valve range when the temperature, pipe size, sealing method or isolation function is different.
Forged Metal-Seated Floating Ball Valve
A metal-seated floating ball valve for higher temperatures, particles or conditions that may damage a soft seat.
Forged Cryogenic Ball Valves
For LNG, liquid gas and other low-temperature pipe systems that need a cryogenic valve design.
DBB Compact Manifold
For pipe systems that need two shutoff points and a bleed point in one compact unit.
Trunnion Forged Soft Seated
For larger pipe sizes or applications that need a forged trunnion-mounted valve.
Service and Support
Learn about manufacturing, testing, documents, packing and other order support.
Selection Assistance by Email
Email your pipe and fluid information when you need help choosing the right CARILO valve.
Common Questions
Answers before you place an order
The valve must match the actual pressure, temperature, fluid and pipe requirements. Send us your datasheet when you are not sure.
What is the difference between full-bore and reduced-bore construction?
A full-bore valve has a larger opening and causes less flow restriction. A reduced-bore valve has a smaller opening and is often more compact. Use reduced bore only when the pipe design allows it.
How should I choose between soft-seat and metal-seat versions?
A soft seat is usually better for clean fluids and tight shutoff. A metal seat is better for higher heat, particles and harder working conditions. The fluid, temperature and required closing tightness must all be checked.
Which end connections are available on this valve series?
You can choose socket-weld, butt-weld or NPT threaded ends. Select the same connection type required by your pipe system.
Can the valve be supplied with an actuator?
Yes. The valve can be supplied for an air, electric or hydraulic actuator. Tell us the working pressure, how often it will operate, the available power or air supply, and the required fail position.
What documents can be prepared with the order?
The order can include certificates of conformity, EN 10204 3.1 material certificates, API 598 test reports, size checks and valve marking records. Tell us which documents you need before ordering.
What information should be included in the enquiry?
Please send the size, pressure class, fluid, temperature, body and internal materials, seat type, connection, quantity, actuator needs and required documents.
Ask for a Quote
Send your valve requirements for a suitable quotation
Send the pipe size, pressure, fluid, temperature, connection, material, seat type, quantity and whether you need a hand lever or actuator.
Direct email: sales@carilovalve.com · Wuxing Industrial Zone, Oubei Town, Wenzhou, Zhejiang, China
