China Gate Valve Manufacturers Suppliers Factory - Customized Gate Valve Made in China

Reliable Gate Valve Solutions for Industrial Pipeline Isolation

Gate valves are designed for full opening and closing operations in pipeline systems, providing reliable isolation, low pressure loss and long service life. Available in wedge, solid disc and slab gate designs, they are widely used in oil and gas, chemical, power generation, water treatment and industrial applications.

Wedge Disc Gate Valve
The Wedge Disc Gate Valve uses a wedge-shaped gate to vertically lift and lower, enabling the opening, closing, and isolation of pipeline media. It is suitable for water, oil, gas, steam, and general industrial media, primarily used for...
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Solid Disc Gate Valve
Solid Disc Gate Valve is an industrial isolation valve designed for reliable shut-off and pipeline isolation in oil & gas, petrochemical, power generation, water treatment, marine, and industrial process systems. PORO provides solid...
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Slab Gate Valve
Slab Gate Valve is a full-bore pipeline isolation valve designed to control and shut off flow in oil & gas, petrochemical, and industrial pipeline systems.
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Technical Specifications

Parameter	Technical Details & Compliance Standards
Design Standards	API 600, API 6D, ASME B16.34, DIN 3352, BS 1414
Size Range	DN50 - DN1200 (2" to 48")
Pressure Rating	Class 150 to Class 2500 / PN10 to PN420
Temperature Range	-29°C to 425°C (Carbon Steel), -196°C to 600°C (Stainless Steel)
Testing & Inspection	100% Tested per API 598 / ISO 5208 prior to dispatch
Fugitive Emission	API 622 / API 641 / ISO 15848-1 Compliant Packing
Fire Safe Standard	API 607 / API 6FA Certified
Face to Face	ASME B16.10, EN 558

Key Design Features

Stellite Hardfaced Sealing Surfaces

Valve disc and seat sealing faces are overlay-welded with Stellite Alloy No. 6 to ensure superior anti-scuffing, erosion resistance, and extended cycle life under thermal transients.

API 622 Low Fugitive Emission Packing

Equipped with graphite packing featuring braided anti-extrusion end rings, tested to meet strict API 622 / API 641 environmental standards for reduced VOC emissions.

Precision Integrated Backseat

Features an integral backseat design allowing the stem packing to be replaced in the field while the pipeline is under full pressure.

Product Range

Wedge Disc Gate Valve

Designed with a wedge-shaped gate structure, it provides reliable shut-off performance and is suitable for high-pressure and high-temperature industrial pipeline systems.

Solid Disc Gate Valve

A common isolation valve with a solid gate structure, providing stable sealing performance for petroleum, chemical, power and water treatment applications.

Slab Gate Valve

Featuring a flat gate design, it is widely used in oil, gas and industrial pipeline systems requiring reliable flow isolation.

Applications

Oil & Gas Industry

Gate valves are widely used in oil and gas pipelines for reliable isolation and pressure-resistant operation.

Chemical Industry

Suitable for process pipelines requiring dependable shut-off and material compatibility.

Water Treatment

Used in water supply, treatment plants and industrial water systems for pipeline isolation.

Power Generation

Applied in steam, cooling water and auxiliary systems requiring stable valve operation.

Marine Industry

Used in ship piping systems for seawater, fuel and industrial fluid isolation.

Selection Guide

Application Requirement	Recommended Gate Valve Solution
General industrial pipeline isolation	Wedge Disc Gate Valve
Oil and gas pipeline systems	Slab Gate Valve
High pressure and high temperature service	Wedge Gate Valve with suitable material selection
Underground or space-limited installation	Non-Rising Stem Gate Valve
Frequent automation requirements	Electric or Pneumatic Actuated Gate Valve

Valve Testing & Quality Control

Material Inspection

Verify raw materials according to project requirements and applicable standards.
Ensure material consistency and traceability for different valve applications.

Dimensional & Machining Inspection

Check valve dimensions, machining accuracy and connection specifications.
Ensure compatibility with customer pipeline systems.

Pressure & Leakage Testing

Every gate valve undergoes 100% Hydrostatic Shell Testing (1.5x working pressure) and High/Low-Pressure Air Seat Testing strictly according to API 598 / ISO 5208 standards, ensuring zero visible leakage before shipment.

Final Inspection

Check valve operation, appearance, marking and required documentation before shipment.
Ensure finished products meet approved specifications.

Manufacturing Advantages

More than 20 years of experience in industrial valve production.

Production capability covering gate valves, globe valves, check valves, ball valves, butterfly valves and other valve categories.

Material processing capability covering carbon steel, low temperature carbon steel, stainless steel, duplex stainless steel and alloy steel.

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

Export experience serving customers in ASEAN, Europe, South America, Middle East and Africa.

Logistics & After-Sales Support

International Delivery Support

Export-standard packaging suitable for long-distance transportation.
Protection measures to reduce damage risks during handling and shipment.
Support for international shipping arrangements and required export documentation.

Flexible Order Support

MOQ depends on valve type, specification and customization requirements.
Lead time varies according to product design, material availability and order quantity.
Engineering evaluation available before production for customized requirements.

After-Sales Service

Technical support for product selection and installation requirements.
Response support for quality issues during product service life.
Assistance with replacement parts and maintenance requirements when needed.

FAQ

Q: What types of gate valves does PORO manufacture?

A: PORO provides wedge disc gate valves, solid disc gate valves and slab gate valves for different industrial applications.

Q: What is the main application of a gate valve?

A: Gate valves are mainly used for pipeline isolation, allowing full flow when open and reliable shut-off when closed.

Q: How do I select the right gate valve?

A: Selection depends on application media, pressure rating, temperature, pipeline requirements, material and sealing requirements.

Q: What materials are available for gate valves?

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

Q: Can gate valves be used for flow regulation?

A: Gate valves are mainly designed for fully open or fully closed operation and are not recommended for throttling applications.

Q: What is the difference between wedge gate valves and slab gate valves?

A: Wedge gate valves use an inclined gate structure for general industrial isolation, while slab gate valves are commonly used in oil and gas pipeline systems.

Q: Are gate valves suitable for high-pressure applications?

A: Yes. With suitable material and pressure ratings, gate valves can be used in high-pressure industrial systems.

Q: Can gate valves be automated?

A: Yes. Electric, pneumatic and hydraulic actuators can be supplied for automated operation.

Q: Does PORO support customized gate valve production?

A: Yes. PORO provides OEM solutions according to customer drawings, specifications and technical requirements.

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

A: Customers should provide valve size, pressure rating, medium, temperature, connection type, material requirements and quantity.

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