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Top Flange Valve Supplier in China

Choose reliability and precision with China’s top flange valve supplier. We specialize in crafting high-performance forged steel flanges that meet stringent international standards like ASME and EN, ensuring exceptional safety and durability for critical systems. Backed by advanced manufacturing expertise and industry certifications, each flange is designed for maximum efficiency and performance across various industrial applications. Join countless businesses globally who trust our flanges for their robust quality and compliance with rigorous testing standards. Build your projects on a foundation of strength and precision—partner with the most trusted flange supplier in China today!

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Flange Valve
Decades of Expertise
Certified Quality Assurance
Advanced Forging & Machining
Global Standards Compliance

What is a Flange Valve?

A flange valve connects pipes and equipment using bolted rings and a gasket, creating a strong, leak-proof seal for high-pressure and high-temperature systems. Compared to welded joints, flange valves are easier to install, remove, and maintain. Stainless steel flange valves stand out for their superior corrosion resistance, strength, and durability, making them ideal for industries like food, pharmaceuticals, and chemicals. They meet strict international standards, offering safe and reliable performance. Choosing stainless steel reduces maintenance, extends service life, and ensures dependable operation in complex piping systems.

What is a Flange Valve Used For?

  • Equipment Connection: Flange valves connect pipes to equipment like pumps and tanks securely, enabling efficient and serviceable junctions for critical operations.

  • System Maintenance: They allow easy pipeline access for repairs, cleaning, and inspections, reducing downtime and keeping systems operational and reliable.

  • Pipe-to-Pipe Joining: Flange valves form robust mechanical connections between pipes, perfect for settings where welding isn't feasible or safe.

  • Line Termination & Isolation: Blind flanges safely terminate or isolate pipelines, facilitating pressure testing and enabling future system expansions seamlessly.

Why Choose Our Flange Valve?

Our flange valves are designed to meet the critical demands of industrial applications. Here’s why they are the ideal choice:

Enhanced Material Integrity

Our forging approach ensures robust steel structure, delivering superior pressure and temperature tolerance for long-lasting performance.

Prolonged Lifespan

Built from corrosion-resistant materials, including alloys and stainless steel, our valves promise extended durability in tough environments.

Accurate Craftsmanship

Advanced CNC machining delivers precise dimensions and an impeccable seal, guaranteeing reliable, leak-free operation in every application.

Flexible Design Options

We offer tailored solutions, modifying dimensions and materials to align perfectly with your unique industrial requirements.

Differences Between Forged and Cast Flange Valves

  • Manufacturing Process: Forged valves use compressive force for shaping; cast valves involve pouring molten metal into molds.
  • Internal Structure: Forged valves feature refined grain structures, ensuring superior strength and durability compared to cast valves.
  • Performance & Reliability: Forged valves resist impact and fatigue better, ideal for high-pressure and high-temperature applications.
  • Defects & Integrity: Forging eliminates internal faults like porosity and voids, ensuring a safer and more reliable product.

How to Choose the Right Flange Valve

  • Define Operating Conditions: Identify maximum pressure and temperature to determine appropriate valve flange class/rating.
  • Select Compatible Material: Ensure materials withstand fluid and environment, preventing corrosion and ensuring long service life.
  • Determine Connection Type: Match flange type (e.g., Weld Neck, Slip-On) with pipe size, stress, and installation needs.
  • Verify Standards & Dimensions: Confirm compliance with standards (ASME, EN) and alignment with your pipe specifications.

Explore Our Types of Flanges

Flange Gate Valve

Provides a tight shut-off for high-pressure systems. Ideal for on/off fluid control in water, oil, and gas pipelines. Durable design ensures reliability in industrial environments.

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Flange Globe Valve

Ensures precise flow regulation with minimal leakage. Suitable for throttling in chemical, oil, and steam applications. Corrosion-resistant materials provide long-lasting performance.

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Flange Ball Valve

Enables quick, reliable on/off control with minimal pressure drop. Perfect for gas, liquid, and corrosive fluids in various industries. Durable and efficient.

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Flange Butterfly Valve

Flange Butterfly Valve

Lightweight and compact with efficient flow control. Ideal for HVAC, water systems, and low-pressure pipelines. Simple operation and cost-effective, versatile design.

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Flange Check Valve

Flange Check Valve

Prevents reverse fluid flow, ensuring system protection. Essential for water pumps, pipelines, and critical industrial systems. Reliable seal and low maintenance.

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Flange Hydraulic Safety Valve

Flange Hydraulic Safety Valve

Protects systems from overpressure by releasing excess pressure safely. Critical for hydraulic and pneumatic applications, ensuring operational safety and compliance.

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Flange Breathing Valve

Flange Breathing Valve

Maintains safe pressure levels in tanks by allowing controlled ventilation. Perfect for storage tanks in the petrochemical, pharmaceutical, and food processing industries. Reliable and efficient.

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Flange Flame arrester

Flange Flame arrester

Maintains safe pressure levels in tanks by allowing controlled ventilation. Perfect for storage tanks in the petrochemical, pharmaceutical, and food processing industries. Reliable and efficient.

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Flange Valve Dimensions Specifications Chart: ASME B16.5 Class 150

NPS (inch)Flange OD (mm)Min. Thickness (mm)Raised Face Dia. (mm)No. of BoltsBolt Circle Dia. (mm)Bolt Hole Dia. (mm)
1/2"88.911.234.9460.315.9
1"10814.350.8479.415.9
2"152.419.192.14120.719.1
3"190.523.91274152.419.1
4"228.623.9157.28190.519.1
6"279.425.4215.98241.322.2
8"342.928.6269.98298.522.2
10"406.430.2323.91236225.4
12"482.631.838112431.825.4
This table outlines key specifications for flange valves, including dimensions and bolt details for various NPS sizes.

Key Application Industries of Flange Valve

Oil & Gas

Used for high-pressure pipelines, ensuring leak-proof connections and reliable flow control in exploration, transportation, and refining operations.

Chemical Processing

Handles corrosive substances and extreme conditions, providing durability and precision for efficient chemical production and process control.

Water Treatment

Facilitates secure connections for filtration, distribution, and wastewater management systems, ensuring safe and efficient water services.

Power Generation

Supports steam and cooling systems, offering robust solutions for pressure regulation and efficient energy production processes.

Why Choose Our Flange Valve?

  • Leverage Manufacturing Expertise: Since 1983, we’ve perfected every step, from raw material forging to CNC machining, for unmatched quality.

  • Benefit from Rigorous Quality Control: ISO 9000 certified processes ensure complete traceability and precise performance in every flange.

  • Receive Material Compliance Assurance: Our flanges meet international standards like ASME, EN, and DIN, crafted in carbon, alloy, and stainless steel.

  • Tailor Your Solution: Our expert team customizes flanges to your exact specifications, ensuring a perfect fit for unique project needs.

  • Rely on Proven Reliability: Backed by decades of experience, we deliver dependable products and exceptional service for your most critical projects.

What Our Client Says

Understand from our clients what they say about doing business with us and the unique value addition we provide.

"We tasked the team with producing a series of customized stainless steel flange valves for our high-pressure piping system. Their meticulous attention to detail and ability to meet our unique specifications were incredible. The final product exceeded our expectations in both precision and durability, showcasing their expertise in custom engineering."
James Peterson
Chief Mechanical Engineer
"As an international contractor, seamless communication and reliable delivery are critical. The team provided consistent updates, promptly addressed all queries, and ensured timely shipment. The flange valve connection solutions they delivered were top-notch, proving essential for the successful completion of our project."
Project Coordinator
Fatima Al-Hassan
Project Coordinator

Comprehensive Guide to Flange Valve

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Partner With a Trusted Flange Valve Manufacturer

Leverage decades of expertise, ISO-certified quality, and custom-engineered solutions. Ensure reliability and precision for your industrial applications. Partner with us for exceptional flange valves tailored to your exact needs and backed by proven performance.

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  • Langfang City, Shandong Province, China
  • +86-13373362088
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