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

DIN/ASME/API DN100 Electric Knife Gate Valve with WCB Wafer Flange for Water Control in Gas Media Applications

TIANYU DN100 electric knife gate valve with WCB wafer flange excels in controlling water, gas, dust, and particles. It features a shear gate, compact wafer design, precise electric control (4-20mA/Modbus), and WCB durability, suiting municipal, mining, and chemical sectors. Customizable in size (DN50-DN600), voltage (AC 380V/DC 12V), seal type (metal/PTFE), and protection (IP67/EXD) to meet specific application needs.

4inch Stainless Steel Flanged Low Pressure Knife Gate Valve Driven by Electric Actuator

Electric Actuator Knife Gate Valve stainless steel flanged knife gate valve with electric actuator excels in controlling slurries, wastewater, and solid-laden media. Its sharp gate prevents clogging, stainless steel resists corrosion, and electric actuation enables automated control. Ideal for mining, wastewater, and pulp industries. Customizable with 304/316 stainless steel, EPDM/PTFE seals, and voltage options, ensuring tailored performance for specific applications.

DN50 Ductile Iron Metal-Seated Flanged Connection Telescopic Soft Seal Mechanical Gate Valve

TIANYU DN50 ductile iron telescopic soft seal gate valve, with flanged connection and mechanical operation, excels in water, steam, and mild fluids. Its telescopic design relieves pipeline stress, dual seals ensure reliability, and ductile iron offers durability. Ideal for municipal, HVAC, and industrial use. Customizable (seal materials, pressure ratings) to meet specific needs, ensuring optimal performance.

DN50-DN1200 PN16 Stainless Steel Gun Metal Rising Stem Soft Seal Gate Valve

TIANYU stainless steel gun metal rising stem gate valve: DN50-DN1200, 1.0-2.5MPa, soft seal for zero leakage. Corrosion-resistant, adaptable, ideal for municipal, chemical, food, and power sectors.Customize with 316L for extreme corrosion, PTFE seals for chemicals, electric/pneumatic actuators, or large diameters (DN1200+). Tailored to your media, pressure, and operation needs.

DN40 150LB A105 Carbon Steel Flanged Forged Steel Gate Valve with Handwheel Operation

DN40 150LB A105 Carbon Steel Flanged Forged Steel Gate Valve DN40 150LB gate valve: A105 carbon steel, RF flange, handwheel. Reliable for water, oil, gas in medium-pressure systems. Cost-effective, easy to maintain.Customize with: 316 stainless steel trim for corrosion resistance, extended bonnet for cryogenic service, or electric actuators for automation. Tailored to your media, pressure, and control needs.

DN20 PN160 F11 Alloy Steel Gate Valve with Raised Face Flange Connection and Handwheel Operation

TIANYU DN20 PN160 gate valve: F11 alloy steel, raised face flange, handwheel with worm gear. Handles high-pressure/temp media like steam, oil. Reliable, durable, compliant with key standards.Customize with: F22 body for higher temp resistance, metal-to-metal seats for zero leakage, electric actuators for automation, or RTJ flanges for ultra-high pressure. Tailored to your high-pressure system needs.

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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Knife gate valves: the right hand for industrial fluid control

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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.

Tianyu Professional China Valve Manufacturers and Supplier Conforming ISO APl CE certification standards

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About Us

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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Add: No. 6988 Sunshine Avenue, Wuxing Industrial Zone, Oubei Town, Yongjia County, Wenzhou City, Zhejiang Province
Phone: +0086-0577-67091625
Email: info@tyfluidgroup.com
WhatsApp: +0086 150 8859 0029