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We deliver high-performance valve ball solutions with precision and integrity.
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Free-Floating Valve Balls For Sale

Floating Ball Valve Ball

A Floating Ball Valve Ball is the core sealing component inside a floating ball valve. Unlike trunnion-mounted ball valve balls, the floating ball is supported by the valve seats and stem rather than upper and lower trunnions. During operation, line pressure pushes the ball toward the downstream seat, creating a reliable sealing effect while maintaining a compact structure and excellent shut-off performance.

Because of its simple design, dependable sealing capability, and cost-effective operation, the Floating Ball Valve Ball is widely used in oil & gas, chemical processing, water treatment, marine engineering, steam systems, and general industrial pipelines.

According to different operating requirements, Floating Ball Valve Balls are mainly available in the following configurations.

Solid Straight Through Floating Ball Valve Ball

The Solid Straight Through Floating Ball Valve Ball features a full-port straight bore that minimizes flow resistance and pressure loss. It is an ideal choice for applications requiring smooth media flow, high sealing reliability, and efficient pipeline operation.

Typical applications include:

  • Oil & Gas Pipelines
  • Water Treatment Systems
  • Industrial Fluid Control
  • Marine Engineering
  • General Process Pipelines

Floating Ball Valve Ball With Vent Hole

The Floating Ball Valve Ball With Vent Hole incorporates a pressure-relief hole inside the ball cavity. This design helps reduce pressure accumulation caused by thermal expansion or trapped media, improving operational safety under specific working conditions.

Typical applications include:

  • Chemical Processing
  • Steam Systems
  • High-Temperature Pipelines
  • Thermal Oil Systems
  • Special Industrial Processes

Reliable Sealing Performance

Floating Ball Valve Balls utilize line pressure to achieve tight sealing between the ball and valve seats. This self-sealing mechanism provides dependable shut-off performance while maintaining a compact valve structure suitable for medium-pressure industrial applications.

High-Precision CNC Machining

Every Floating Ball Valve Ball is manufactured using advanced CNC machining and precision grinding equipment to ensure dimensional consistency and long-term sealing performance.

Critical machining features include:

  • High Sphericity
  • Excellent Roundness
  • Accurate Bore Dimensions
  • Precise Concentricity
  • Accurate Stem Slot Machining
  • Low Surface Roughness
  • Strict Geometric Tolerances

These precision manufacturing processes improve valve reliability and reduce maintenance requirements.

Wide Material Selection

To meet different operating environments, we manufacture Floating Ball Valve Balls using various engineering materials, including:

  • F304 Stainless Steel
  • F316L Stainless Steel
  • CF8
  • CF3M
  • Duplex Stainless Steel
  • Super Duplex Stainless Steel
  • Monel Alloy
  • Inconel Alloy
  • Other Customer-Specified Materials

These materials provide excellent resistance to corrosion, high temperatures, aggressive chemicals, and demanding industrial environments.

Multiple Surface Treatment Options

Different working conditions require different surface protection methods. We provide multiple finishing options, including:

  • Mirror Polishing
  • Hard Facing
  • Overlay Welding
  • Surface Coating
  • Anti-Corrosion Treatment

Proper surface finishing improves wear resistance, sealing performance, and service life.

Long Service Life and Lower Maintenance Costs

Precision manufacturing combined with strict quality control helps reduce operating torque, improve sealing consistency, and extend equipment service life. This contributes to lower maintenance frequency, reduced downtime, and lower lifecycle costs for industrial users.

Suitable for Multiple Industries

Floating Ball Valve Balls are widely applied in:

  • Oil & Gas
  • Chemical Processing
  • Water Treatment
  • Marine Engineering
  • Steam Systems
  • Industrial Pipelines
  • Automated Process Equipment

Different structures, materials, and surface treatments can be selected according to actual operating conditions.

About
Zhejiang Boshi Valve Technology Co., Ltd.
Zhejiang Boshi Valve Technology Co., Ltd. was built initially in 2005. The company is located in the was built initially in 2005. The company is located in the No. 951, Jinhai Avenue, Yongxing Subdistrict, Longwan District, Wenzhou City, Zhejiang Province Building 25, 1st to 4th Floors. Boshi valve is a high tech valve ball supplier which integrates design, production, sales, and service. Zhejiang Boshi Valve Technology Co., Ltd. was built initially in 2005. The company is located in the Wenzhou Longwan Yongqiang High tech Park - Dushan Industrial Zone (Opposite Wenzhou Detention House). Boshi valve is a high tech valve ball supplier which integrates design, production, sales, and service. As a China Floating Ball Valve Ball suppliers and Floating Ball Valve Ball factory, we are mainly engaged in wholesale Floating Ball Valve Ball, Our company provide high-quality products and services for customers at home and abroad.
Our products are backed by in-house facilities for roughcast forging and pressing, steel plate rolling and welding, seamless pipe forming, and CNC machining. Through a systematic, integrated, and process-driven management approach, we strictly control product quality and delivery schedules. As a result, we are highly praised and trusted by both new and long-term customers.
The materials produced and manufactured by our company include 2Cr13, A105, LF2, F316, F304, F51, and F53 include floating (Q41) balls, fixed (Q47) balls, three-way (T-shaped) balls, four-way balls, curved (L-shaped) balls, and V-shaped adjustment balls, special hard sealing balls, and marble or steel balls in various specifications, often using sub-arc welded hollow sleeves.
Surface treatments for spherical components include electroplating (ENP), ion TCC, and alloy spray coating (STL), ensuring high hardness, corrosion resistance, and wear resistance. The rough blanks undergo processes such as forging, casting, and coil welding, followed by heat treatments like solution treatment, annealing, tempering, normalizing, and quenching. We uphold the business philosophy of “quality first, integrity-based,” and continue to innovate with new technologies, new processes, and new materials to actively develop new product varieties.
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Technical Specifications, Manufacturing Capability & OEM Solutions

Technical Specifications

Item

Specification

Product Name

Floating Ball Valve Ball

Product Types

Solid Straight Through / Vent Hole / Standard

Valve Type

Floating Ball Valve

Size

Customized According to Drawings

Pressure Rating

Customized According to Valve Standards

Materials

F304, F316L, CF8, CF3M, Duplex, Super Duplex, Monel, Inconel

Surface Finish

Mirror Polishing, Hard Facing, Surface Coating

Manufacturing Process

Precision CNC Machining & Grinding

Inspection

Full Dimensional Inspection

OEM Manufacturing

Supported

Drawing-Based Production

Available

Product Comparison

Product Type

Main Feature

Typical Applications

Solid Straight Through Floating Ball Valve Ball

Full-port flow with low pressure loss

Oil & Gas, Water Treatment, Industrial Pipelines

Floating Ball Valve Ball With Vent Hole

Pressure relief for thermal expansion

Chemical Industry, Steam Systems, High-Temperature Applications

Standard Floating Ball Valve Ball

Reliable sealing for medium-pressure valves

General Industrial Fluid Control

 

Our Manufacturing Advantages

As a professional manufacturer of precision valve balls, we provide complete machining solutions for customers worldwide.

Our manufacturing capabilities include:

  • Advanced CNC Machining Centers
  • Precision Grinding Equipment
  • Complete Material Traceability
  • Roundness & Sphericity Inspection
  • Surface Roughness Testing
  • Coordinate Dimensional Measurement
  • Strict Quality Control Throughout Production
  • Stable Production for Both Small and Large Orders

These manufacturing capabilities ensure every Floating Ball Valve Ball meets customer specifications and international quality requirements.

OEM & Customized Manufacturing Solutions

We specialize in OEM and customized production according to customer drawings and technical specifications.

Our customized services include:

  • Manufacturing According to Engineering Drawings
  • Customized Straight Bore Structures
  • Vent Hole Configuration Design
  • Special Stem Slot Machining
  • Non-Standard Dimensions
  • Customized Material Selection
  • Surface Treatment Solutions
  • Prototype Development
  • Small Batch & Mass Production
  • Technical Engineering Support
  • Inspection Reports Upon Request

Before production begins, our engineering team reviews every drawing with customers to verify machining feasibility, tolerance requirements, material selection, and inspection standards, ensuring efficient production while maintaining the original design intent.

Frequently Asked Questions

Q1. What is the difference between a Floating Ball Valve Ball and a Fixed Ball Valve Ball?

A Floating Ball Valve Ball relies on line pressure to create sealing, while a Fixed Ball Valve Ball is mechanically supported by trunnions and is typically used in higher-pressure and larger-size valves.

Q2. Why is a vent hole required on some Floating Ball Valve Balls?

A vent hole helps release pressure that may build up inside the ball cavity due to thermal expansion or trapped media, improving operational safety in specific applications.

Q3. Is the Solid Straight Through Floating Ball Valve Ball suitable for full-port valves?

Yes. Its full-port design minimizes pressure loss and provides smooth media flow, making it ideal for full-port valve applications.

Q4. Can you manufacture according to customer drawings?

Yes. We provide complete OEM manufacturing services based entirely on customer drawings and technical specifications.

Q5. Which materials are available?

We manufacture valve balls using stainless steel, duplex stainless steel, super duplex stainless steel, Monel, Inconel, and other customer-specified engineering materials.

Q6. What quality inspections do you perform?

Our inspection process includes dimensional inspection, roundness testing, sphericity measurement, surface roughness testing, material traceability verification, and full quality control throughout production.

Q7. Do you support prototype production?

Yes. We offer prototype manufacturing before mass production to verify product performance and ensure compliance with project requirements.

Q8. What customization services do you provide?

We support customized bore structures, vent hole configurations, stem slot machining, special materials, surface treatments, non-standard dimensions, and complete OEM manufacturing according to customer drawings.