Gate valve Manufacturer

Gate Valve

China Gate Valves,Top Gate Valve Manufacturer

Tianyu gate valves company is dedicated to being a top gate-valve manufacturer in China.
Valve Types: Wedge gate (flexible wedge, solid wedge), slab gate, parrel slide gate valve, Knife Gate Valve, Bellow Seal Gate Valve
Stem Types: Rising stem, Non-rising stem
Design Standards: API 600, API 602, API 603, BS 5352, ASME B16.34, AWWA, DIN
Size Range: 1/2 – 64 Inch
Pressure Range: Class 150-2500 LB (Class 2680 LB, Class 4500 LB available)
End Connections: Flanged (FF, RF, RTJ), Socket Weld (SW), Threaded (NPT, BSP), Butt Weld (BW)
Material Types: Steel Gate Valve (cast and forged), Iron Gate Valve
Seat Types: Metal Seat Gate Valve (hard faced), Resilient Gate Valve (rubber seat) Bonnet
Bonnet Types: Bolted Bonnet, Pressure Bonnet, Welded Bonnet, Bellow Seal

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Knife Gate Valve Manufacturer
API 600 ASME B16.5 Class 150 NPS 1“ ASTM B148 C95800 Nickel Aluminum Bronze Flexible Wedge OS&Y Flanged Gate Valve with Handwheel Operation for Marine Seawater Offshore and Coastal Industrial Piping

API 600 ASME B16.5 Class 150 NPS 1“ ASTM B148 C95800 Nickel Aluminum Bronze Flexible Wedge OS&Y Flanged Gate Valve with Handwheel Operation for Marine Seawater Offshore and Coastal Industrial Piping

TIANYU ASTM B148 C95800 flexible wedge flanged gate valves deliver a proven combination of seawater corrosion resistance, bubble-tight metal seat shut-off, visible OS&Y position indication, and in-line maintainability. Built to API 600, ASME B16.5/B16.10, and API 598 standards, with EN 10204 3.1 material traceability, these valves are the trusted isolation choice for marine, offshore, desalination, coastal power, and industrial seawater piping systems where long service life and low maintenance downtime are essential.
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API 600 ASME CE DN80 Class 300LB WC6 Cr-Mo Alloy Steel Manual Flanged Rising Stem Wedge Gate Valve

API 600 ASME CE DN80 Class 300LB WC6 Cr-Mo Alloy Steel Manual Flanged Rising Stem Wedge Gate Valve

3” Class 300LB ASTM A217 WC6 flanged rising stem gate valve complies with API 600, ASME B16.34 and CE standards, fitted with solid SS316 gate trim and flexible graphite stem packing for full-bore pipeline isolation under ultra-high temperature conditions. Its WC6 Cr-Mo alloy body delivers exclusive high-temperature creep resistance unmatched by WCB carbon steel valves, while full straight flow channel minimizes fluid pressure loss to cut plant operation costs. Featuring simple on-site maintenance and Class VI zero leakage tightness, it reliably serves thermal power, petrochemical, metallurgy and high-temperature heating industrial piping systems with long service life and full environmental compliance.
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DN50-DN400 PN10/PN16 Pneumatic Through Conduit Knife Gate Valve Applied to Slurry Conveying Pipelines

DN50-DN400 PN10/PN16 Pneumatic Through Conduit Knife Gate Valve Applied to Slurry Conveying Pipelines

TIANYU DN50-DN400 PN10/PN16 Pneumatic Through Conduit Knife Gate Valve offers abrasive-resistant ductile iron/stainless steel construction, through conduit design, ANSI Class IV leakage, and 0.4–0.6MPa pneumatic actuation. Compliant with ISO 10631/ASME B16.5, it excels in metallurgical slurry, mining, chemical, and power sectors—delivering clog-free operation, durability, and automated efficiency. Backed by a three-year warranty.
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Heavy-duty Abrasive-Resistant Industrial Knife Gate Valves With Petroleum Equipment Zero Leakage Slurry Valve

Heavy-duty Abrasive-Resistant Industrial Knife Gate Valves With Petroleum Equipment Zero Leakage Slurry Valve

TIANYU Heavy-duty Abrasive-Resistant Industrial Knife Gate Valves With Petroleum Equipment Zero Leakage Slurry Valve offers DN50-DN1200 size, PN10-PN25 pressure, -20℃-300℃ temp range, and ANSI Class IV-VI leakage. Built for abrasive/solid-laden media, it features sharp blade gates, wear-resistant materials, and multiple operation modes. Compliant with API 600/ISO 10631, ideal for mining, wastewater, chemical, and power sectors.
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High Performance Gate Valves

TianYu High-performance Gate Valves

The gate valve is a multi-turn valve that is installed in the pipeline as an isolation valve for full open and close service.
The valve is operated by a threaded stem forcing the gate to the two seats and blocking the fluid. The seats are normally metal with hard facing(stellite CoCrW or SS Overlay) to ensure a long working life. It can also be a soft seat for specified services like water.
Gate valves are widely used for all types of applications and are suitable for various fluids such as water, oil, steam, gas, and slurry.

Application Scenarios And Selection of Gate Valves

Application Scenarios of Gate Valves
  • Petrochemical Industry: Used in crude oil transportation pipelines and inlet/outlet of chemical raw material storage tanks to control the on/off of high-temperature, high-pressure, and corrosive media.
  • Water Supply and Drainage Systems: Applied in main pipelines of urban water supply networks and large pipelines in wastewater treatment plants to achieve rapid cutoff of large-flow fluids.
  • Power Industry: Used in the steam-water systems of thermal power plants and cooling circuits of nuclear power plants, requiring resistance to high pressure and high temperature environments.
  • Metallurgical Industry: Applied in blast furnace gas pipelines and oxygen transmission pipelines of steel plants, requiring strong sealing and impact resistance of valves.
  • Natural Gas Transportation: Used as block valves in long-distance pipelines, needing to meet strict sealing standards (e.g., API 6D) and seismic design requirements.
Selection Key Points for Gate Valves
  • Operating Conditions Parameters: Medium type (corrosive/clean), pressure, temperature, and flow range.
  • Installation Space: Rising stem gate valves require reserved space for stem lifting/lowering; non-rising stem gate valves are more suitable for space-constrained scenarios.
  • Driving Methods: Manual operation is suitable for small valves; electric/pneumatic drives are used for remote control or large-diameter valves.
  • Sealing Requirements: For flammable and explosive media, select hard sealing + high leakage rating (e.g., API 6D).

Our valves feature excellent casting quality, with every Bosseal casting inspected to MSS SP-55 standards, strictly controlling defects like gas porosity, cracks, and shrinkage. The flexible wedge design compensates for seat distortion and body deformation, offering long working life—seat surfaces provide ample wear travel and optional CoCrA hard facing. A straight, standard bore ensures low flow resistance at full opening, maximizing fluid passage. Easy, lockable operation comes from reasonable gland nut torque, long-thread stems, and durable stem nuts, while handwheels/gears include lockable structures for secure handling.

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Gate Valve Leakage: Inspection, Prevention, and Repair Methods

Discover essential methods for inspecting, preventing, and repairing gate valve leakage. Learn about common causes, effective inspection techniques, best practices for maintenance, and repair strategies to ensure optimal performance and safety in your systems.
Knife gate valves

Knife gate valves: the right hand for industrial fluid control

Knife gate valve – the key “gate” of industrial pipeline In the huge system of industrial production, fluid transportation and control is like the human body’s blood circulation system, vital and can not be lost. The knife gate valve, as a key control component on the industrial pipeline, silently bear the responsibility of precise control […]

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Comprehensive Guide to Industrial Gate Valve

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Professional China Valve Manufacturers and Supplier

TOP QUALITY GATE VALVES FOR YOU

The gate valve is a multi-turn valve that is installed in the pipeline as an isolation valve for full open and close service.
If you need any support about our Gate Valves, pls contact us!
Tianyu gate valves company is dedicated to being a top gate-valve manufacturer in China.Having obtained multiple certifications, our valve products are trusted by global brands and have helped ensure smoother operations in numerous facilities.

Gate Valve Parts

Sealing Element

The sealing element is vital for valves, preventing media leakage when closed. Made of durable, corrosion-resistant materials, it withstands pressure, temperature, and corrosion. Its repeated friction during operation makes material choice and manufacturing quality crucial for sealing performance and valve lifespan, regardless of valve type.

Valve Stem

The valve stem links the closure element to the operating mechanism, controlling its movement to regulate media flow. It requires strength and rigidity to withstand forces while maintaining stability. Its design and quality directly impact the valve’s flexibility and durability.

Valve Body

The valve body serves as the core structure of the valve, forming the main framework that provides installation and support for other components. It houses the internal channels for media flow. Whether it’s a ball valve, butterfly valve, or gate valve, the valve body is the most essential part, directly influencing the valve’s performance, flow characteristics, and service life.

Valve Cover

The valve cover is the enclosed part of the valve, typically connected to the valve body to form a sealed space within the valve. Its main function is to protect the internal components of the valve from external impurities and ensure complete sealing when the valve is closed, preventing media leakage. The design and manufacturing quality of the valve cover significantly impact the overall performance of the valve.

Why Choose Us

Ensure Safety

Our products and services comply with international standards and specifications to make sure that we only produce the best and highest quality products and services to our clients.

Customization Service

We offer tailor-made industrial valves to ensure that our product fits your application standards and demand. TIANYU is ISO, API, MSS, and ASME compliant to guarantee you the highest product quality.

Fast Shipping

As a business partner, TIANYU makes sure that we commit to our clients’ requested deadline because we very much understand the importance of adhering to the timeline required.

After-Sales Service

TIANYU’s service does not end once our industrial ball valves are being delivered. Also, we offer warranties and provide customer service to our clients as part of our quality service.

About Us
valve test apparatus

Founded in 2009, Wenzhou Tianyu Valve Technology Co., Ltd. is a professional valve enterprise integrating design, development, production, and sales services, located in the hometown of Chinese valves – Oubei Town, Wenzhou.

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