Reliable Ball Valve Solutions for Industrial Applications

 

Ball valves use a rotating spherical closure to provide reliable on/off flow control and tight shut-off performance. Available in various materials and configurations, they are designed for pipelines and industrial systems in petroleum, chemical, power, shipbuilding, water treatment and other demanding applications.

 
  • Floating Type Ball Valve
    The Floating Type Ball Valve employs a floating ball structure. Under the pressure of the medium, the valve ball presses against the downstream valve seat to form a seal. Rapid opening and closing is achieved through 90° rotation,...
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  • Trunnion Mounted Ball Valve
    The Trunnion Mounted Ball Valve features a fixed ball structure, with the ball supported by upper and lower Trunnions. This reduces the load on the ball and seat, as well as the operating torque, making it suitable for large-diameter,...
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  • Soft Sealing Ball Valve
    The Soft Sealing Ball Valve features a floating ball structure and soft-seal seats made of PTFE or RPTFE, achieving rapid opening and closing through 90° rotation. It is suitable for shutting off pipelines carrying water, oil, natural...
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  • Double Ball Valve
    The Double Ball Valve features a floating ball structure and a soft-seal seat, enabling rapid opening and closing through 90° rotation. It is suitable for pipeline shut-off and isolation of water, oil, natural gas, air, and applicable...
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  • Three Way Type Of Ball Valve
    The Three Way Ball Valve features a three-way ball structure, allowing for media switching, diversion, or mixing through 90° rotation. It is suitable for pipelines carrying water, oil, gas, and some chemical media.
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  • Fully Welded Ball Valve
    The Fully Welded Ball Valve features a fully welded valve body and a 90° rotating ball structure, reducing external connection points such as flanges and bolts, thus lowering the risk of external leakage. It is suitable for...
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  • Hard Face Sealing Ball Valve
    The Hard Face Sealing Ball Valve features a hard metal face sealing structure. It achieves media cutoff and isolation through a 90° rotation of the ball, making it suitable for high-temperature, high-pressure differential, particulate,...
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Technical Specifications

 

Parameter

Specification Range

Governing Standards

Nominal Diameter

DN15 to DN1200 (1/2" to 48")

ASME B16.34 / API 6D

Pressure Ratings

Class 150 to Class 2500 (PN16 to PN420)

ASME B16.34

Body Materials

WCB, LCC, CF8, CF8M, CF3M, Duplex Stainless Steel (2205/2507), Alloy 20, Hastelloy

ASTM / EN 10204

Temperature Limits

-196°C to +550°C (Cryogenic to High-Temperature Service)

ASME B16.34

End Connections

RF, RTJ Flanged (ASME B16.5), Butt-Weld (BW to ASME B16.25), Threaded (NPT)

ASME B16.5 / B16.25

Face-to-Face Dimension

According to ASME B16.10 / API 6D

ASME B16.10

Sealing / Leakage Class

Soft Seat: Rate A (ISO 5208) / Metal Seat: ANSI/FCI 70-2 Class V & VI

ISO 5208 / ANSI/FCI 70-2

Actuation Options

Lever, Worm Gear, Pneumatic (Single-Acting / Double-Acting), Electric, Hydraulic

ISO 5211 Direct Mounting

Fire Safety & Emissions

Fire Safe Design according to API 607 / API 6FA; Low Fugitive Emission according to ISO 15848-1

API / ISO

 

Key Considerations When Choosing a Ball Valve

 

Buyer Concern

Available Solutions

Leakage Control

Soft seat / Metal seat options with tight shut-off performance

High Temperature Service

PEEK or metal seat designs

Safety Requirements

Anti-static and fire safe design according to API 607

Flow Efficiency

Full port or reduced port options

Automation Integration

Optimized torque design for pneumatic/electric actuators

 

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Product Range

Floating Type Ball Valve
Designed with a floating ball structure, it provides reliable shut-off performance and simple maintenance for general industrial pipeline systems.


Trunnion Mounted Ball Valve
Featuring a supported ball design, it offers lower operating torque and stable performance for high-pressure and large-diameter applications.


Soft Sealing Ball Valve
Using elastic sealing materials, it provides tight shut-off and reliable sealing performance for fluid control systems.

Double Ball Valve

Designed with a dual-ball structure, it provides enhanced sealing and flow control performance for specific industrial applications.

Three Way Type Ball Valve

With a multi-port design, it enables flow direction switching and is suitable for pipeline diversion and process control systems.

Fully Welded Ball Valve

Featuring a fully welded body structure, it provides long service life and is commonly used in demanding pipeline environments.

Hard Face Sealing Ball Valve

Using metal-to-metal sealing technology, it is designed for high-temperature, high-pressure and abrasive service conditions.

 

Material Selection Matrix

 

Operating Environment

Recommended Body Material

Recommended Trim / Sealing Options

Standard Hydrocarbons & Water

Carbon Steel (WCB) / Stainless Steel

316 Stainless Steel, Soft Seat Options

Low-Temperature Service

Low Temperature Carbon Steel (LTCS)

Stainless Steel Trim, PTFE Seat

Corrosive Chemical Service

Stainless Steel / Duplex Stainless Steel

Corrosion-Resistant Alloy Options

High Temperature or Abrasive Service

Alloy Steel / Stainless Steel

Metal Seat Design

 

Industrial Applications
 

Petroleum Industry:

Valve solutions for oil pipeline systems and related industrial equipment.

Chemical Industry:

Suitable for fluid control applications involving demanding chemical environments.

Electric Power Industry:

Used in power generation systems requiring stable operation.

Shipbuilding Industry:

Applied in marine piping and fluid control systems.

Water Treatment:

Used for water supply, treatment and industrial water systems.

Iron & Steel Industry:

Applied in heavy industrial production environments.

 

Manufacturing & Quality Capability

 

With more than 20 years of valve manufacturing experience, PORO operates a 23,186㎡ production facility and provides integrated valve manufacturing and supply capability.

 

 

Manufacturing Advantages

Long-term experience in industrial valve production since 1997


Manufacturing capability covering multiple valve categories


Material options including CS, LTCS, SS, DSS and Alloy Steel


Production according to international standards including ANSI, DIN, BS, JIS and GB


Export experience serving customers across multiple global markets

Trunnion Mounted Ball Valve

 

Quality Control
 
 

100% High-Pressure Gas Testing:

Every ball valve undergoes hydrostatic shell testing (1.5x PN) and high-pressure nitrogen/helium seat leakage testing according to API 6D / API 598.

 
 
 

Hardness & Coating Thickness Check:

100% verification of HVOF coating hardness (≥60 HRC) and layer thickness on metal-seated balls and seats.

 
 
 

Fire-Safe & Torque Validation:

Serialized Torque Testing across all pressure differentials to ensure proper actuator sizing and ISO 5211 mounting compatibility.

 

 

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OEM & Custom Ball Valve Solutions

Customization options include:

Customers can provide existing valve specifications or drawings for engineering evaluation before production.

Material selection

1

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Valve specifications

2

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Applicable standards

3

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Product marking

4

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Packaging requirements

5

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OEM production based on drawings or technical specifications

6

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FAQ

 

Q: What types of valves does PORO manufacture?

A: PORO manufactures various industrial valves including gate valves, globe valves, check valves, ball valves, butterfly valves and slab gate valves.

Q: What materials are available for PORO ball valves?

A: PORO supplies ball valves in carbon steel, low temperature carbon steel, stainless steel, duplex stainless steel and alloy steel materials.

Q: Which standards can PORO ball valves meet?

A: PORO manufactures valves according to international standards including ANSI, DIN, BS, JIS and GB.

Q: What industries use PORO ball valves?

A: PORO ball valves are used in petroleum, chemical, electric power, shipbuilding, water treatment, iron and steel and other industrial fields.

Q: Does PORO support OEM valve production?

A: Yes. PORO can provide customized production according to customer drawings, specifications and technical requirements.

Q: How can I select the correct ball valve?

A: Selection depends on application media, pressure, temperature, material, connection type and required standards.

Q: What information is required for a ball valve quotation?

A: Customers should provide valve size, material, pressure rating, connection type, application conditions and quantity.

Q: Does PORO export ball valves internationally?

A: Yes. PORO products are exported to ASEAN, Europe, South America, Middle East, Africa and other markets.

Q: Does PORO offer Double Block and Bleed (DBB) ball valves for oil & gas projects?

A: Yes. PORO manufactures API 6D compliant Trunnion Mounted and DBB ball valves with spring-loaded self-relieving or double piston effect (DPE) seats, complete with drain/bleed valves for safe field isolation.

Q: What soft seat materials are used for high-temperature/high-pressure ball valves?

A: We provide Devlon V-API, PEEK, and RPTFE soft seats for temperatures up to 250°C. For service temperatures exceeding 250°C or abrasive slurry media, we recommend our Metal-to-Metal Hard-Faced Ball Valves.

With abundant experience, we are one of the most professional ball valve manufacturers and suppliers in China. We warmly welcome you to buy customized ball valve made in China here from our factory. If you have any enquiry about cooperation, please feel free to email us.

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