Why Choose Us?
Your Professional One Piece Ball Valve Manufacturer in China!
Excellent Product Quality
We provide 1 piece ball valves with every production process inspected by a dedicated quality control team, ensuring zero defects in the products.
Advanced Production Equipment
Using high-precision CNC machines, we guarantee accurate dimensions, stable performance, and the ability to meet demanding operating conditions.
Full Industry Chain Self-Production
With our independent design engineering team, casting workshops, CNC machining centers, and professional sales team, we maintain complete control over the process, ensuring efficient delivery.
Flexible Customization Services
We support OEM/ODM customization, allowing adjustments to logo, size, structural design, and packaging to meet diverse needs.
One-Stop Solution
From design → production → quality inspection → logistics, we manage the entire process in-house, reducing intermediate steps, improving efficiency, and lowering costs.
Fast Quote Response
Our professional sales team will provide an accurate quote within 8 hours, shortening your procurement cycle.
30+ Years of Industry Experience
With decades of experience in valve manufacturing, our technology is mature, and our processes are stable. We provide expert selection advice and technical support.
Global Logistics Support
We offer multiple transportation options such as sea freight, air freight, and international express to ensure safe and efficient delivery of goods.
Strict Quality Control
Our quality control staff oversee the production line throughout, conducting 100% factory inspection to eliminate any defective products.
High Cost-Performance Advantage
Relying on large-scale production and refined management, we offer highly competitive prices, allowing you to receive higher quality products at better costs.

The 1 piece ball valve consists of only a single body component, making it a strong, durable, and cost-effective choice. 1 piece body ball valve features a standard port, also known as a reduced port, as the standard port ball valve internal diameter is smaller than that of the pipeline it connects.
The 1 piece stainless steel ball valve is designed with a quarter-turn handle that rotates the ball 90 degrees to either the open or closed position. The locking mechanism on the handle is used to secure it in either position.
● Excellent Fluid Dynamics: The spherical closure design minimizes fluid resistance, with a coefficient matching that of an equivalent pipe segment.
● Innovative Structure: The ball valve one piece body simple design, compact size, and lightweight features of the one-piece body ball valve make it easy to install and maintain.
● Reliability: A safe and reliable solution, often using plastic or similar sealing materials, making it suitable for vacuum systems.
● User-Friendly Operation: The stainless steel ball valve can be opened or closed with a quick 90° rotation, providing convenience for remote control applications.
● Simplified Maintenance: The simple structure of the one piece valve, with a removable sealing ring, makes disassembly and replacement easy.
● Corrosion Resistance: During full open or closed states, the seal surfaces between the ball and seat are isolated from the medium, preventing corrosion.
● Versatile Applications: The single piece ball valve is suitable for a wide range of diameters, from a few millimeters to several meters, and can be used in high vacuum to high-pressure scenarios.


● The one piece ball valve is made from SS316 (CF8/CF8M) cast stainless steel.
● Seals and valve seats are made from PTFE.
● Suitable for all substances compatible with PTFE and SS316.
● Non-contact parts are made from 304 stainless steel.
Reduced port ball valves are commonly used in water, fuel oil, natural gas, and industrial systems where slight flow restrictions and pressure drops are acceptable.


The operating dynamics of the 1 piece stainless steel ball valve involve a series of precise actions during the opening and closing processes.
1.Opening Process
Initial Setup: The ball is mechanically pressured by the valve stem and firmly pressed against the seat.
Counterclockwise Turn of the Handle: The valve stem moves in reverse, causing the ball to separate from the seat.
Rising Stem: The interaction between the stem and guide pin allows the ball to rotate smoothly without friction.
Fully Open State: The stem reaches its maximum height, and the ball rotates to the fully open position.
2.Closing Process
Clockwise Turn of the Handle: The valve stem moves downward, causing the ball to leave the seat and begin to rotate.
Guide Pin Interaction: Both the stem and ball rotate 90° simultaneously.
Non-Contact Rotation: The ball completes the 90° rotation without touching the seat.
Seamless Seal: During the final rotation, the bottom of the stem mechanically wedges the ball, ensuring a tight seal on the seat.
1.Forging and Precision Machining
Using an integrated metal forging process, the material's crystal structure is optimized, followed by CNC precision machining to form the valve body cavity.
2.Ball and Stem Assembly
The hollow ball with a flow channel hole is precisely embedded into the valve chamber and linked to the stem mechanism.
3.Seal System Installation
PTFE or graphite-reinforced sealing rings are configured around the ball to ensure zero leakage when in the closed state.
4.End Connection Assembly
The valve body ports are formed using either integrated forging or welding techniques, creating a standard pipe connection structure.
5.Final Assembly
The valve stem is fixed, and a manual handwheel/automatic actuator is installed to enable valve open/close control.
6.Factory Performance Testing
Each valve undergoes pressure sealing tests to ensure compliance with international standards such as API/ANSI.

Classification and Practical Guide
The one piece ball valve can be categorized by its passage position into: straight-through, three-piece, and angled designs. The latter two are suitable for media distribution and flow direction changes.
Installation and Maintenance Insights
Rotational Space
Ensure enough space for rotation to facilitate smooth handle movement, improving operational efficiency.
Not for Throttling
While ideal for rapid opening and closing, these valves are not recommended for throttling applications.
Drive Mechanism Alignment
Ball valves with drive mechanisms should be installed upright to achieve optimal functionality.
How to Cooperate with Us?

Requirement Confirmation and Technical Consultation
Customers provide valve usage conditions (pressure, medium, temperature, etc.) and installation size requirements (length, width, height, connection standards, etc.), and our technical team will provide selection advice within 24 hours.

Solution Design and Confirmation
● Standard Products: We will provide 3D models or CAD drawings for confirmation.
● Custom Products: Based on customer sketches or technical requirements, we will offer a custom design plan within 72 hours.

Order Signing
Sign a formal contract, clearly specifying:
✓ Product technical parameters ✓ Delivery cycle ✓ Quality acceptance standards ✓ Logistics and payment terms

Smart Manufacturing and Process Control
● Activate CNC precision machining centers for production.
● Real-time quality inspections at each process step (videos/reports available).
● Remote factory inspection or video monitoring available.

Strict Factory Testing
100% pass rate on:
✓ Pressure sealing test ✓ Torque test ✓ Salt spray test (optional)

Global Logistics Distribution
● Provide EXW/FOB/DDP and other trade terms.
● Special shipping options for hazardous goods or temperature-controlled transportation.

After-Sales Support
● 18-month extended warranty.
● 48-hour fault response.
● Lifetime free technical consultation.
From inquiry to delivery, we provide dedicated support to ensure your procurement is efficient!
Certifications

ISO9001Certificate

ISO14001 Certificate

ISO45001Certificate

CE Certification

ROSH Certification
Frequently Asked Questions
Q: What is the difference between a 1 piece and 2 piece ball valve?
A: The 1pc ball valve is a solid, one-piece design that offers simplicity and reliability. It is commonly used in residential applications and low-pressure systems. On the other hand, the 2pc ball valve consists of two separate pieces that can be easily dismantled for maintenance or repairs.
Q: What is a part 1 ball valve?
A: A part 1 ball valve, also known as a Portsmouth valve or a bottom-entry float valve, is a type of ball float valve commonly used in water tanks and cisterns to regulate water flow. It's characterized by its water outlet being located on the underside of the valve. This design differs from part 2 ball valves, which have the outlet on top.
Q: What is a one way ball valve?
A: One-way ball valves have a flow direction. This orientation is because one-way ball valve designs only seal and handle pressure flowing in one direction. A one-way valve ball has only one seat for sealing against the ball.
Q: What are the three types of ball valves?
A: The three types of ball valves often found in plumbing systems are full port, reduced port, and multi-port ball valves. Full port: The hole in the ball aligns in size with the inlet and outlet ports. This means low resistance to flow and minimal pressure drop.
Q: 2 piece ball valve vs 1 piece
A: One-piece and two-piece ball valves differ primarily in their construction and how they are assembled. One-piece valves are cast or machined from a single piece of material, while two-piece valves consist of two separate pieces that are joined together, typically with threads or bolts. This difference in construction impacts their suitability for different applications, particularly in terms of repair, cost, and pressure ratings.
Q: What is a single piece ball valve?
A: The 1 piece ball valve has one body part making it a robust and cost effective option. The One Piece Ball Valve has a standard port which is also called a reduced port since the ID of the valve is one size smaller than the ID of the pipe size it attaches to.
Q: What is a reduced port ball valve?
A: A reduced port ball valve, also known as a standard port ball valve, has a smaller internal diameter (bore) than the pipe it's connected to. This means the flow path through the valve is narrower than the pipe's diameter, causing some flow restriction and pressure drop.
Q: What is the difference between L port and T port ball valves?
A: The key difference between L-port and T-port three-way ball valves lies in their flow path configuration. L-port valves allow flow between two ports at a time, while T-port valves can connect all three ports simultaneously. This fundamental difference in flow control allows for distinct applications, with T-ports offering more versatile flow patterns, including mixing, compared to L-ports.
Zhejiang Leadtek Fluid Technology Co., Ltd. is one of the most professional 1 pc ball valve manufacturers and suppliers in China. We warmly welcome you to buy customized 1 pc ball valve at competitive price from our factory. For free sample, contact us now.
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