Products

Leading Gate Valve Manufacturer with Decades of Expertise

Gate Valve We’re a reliable valve manufacturer based in China, with our own brand — Huadu.


We offer custom OEM and ODM solutions to meet different project needs.

Best of all, our MOQ is only 1 piece for gate valves and all other valve types.

We maintain plenty of stock all year round, so we can ship out your order quickly after confirmation.We make both stainless steel and carbon steel gate valves.


How should I operate a gate valve?

A gate valve is mainly for fully opening or fully closing the pipeline.

It can only control on and off, not for adjusting flow.

Simply turn the handwheel clockwise to close the valve, and counterclockwise to open it.

It is better not to keep it half-opened for long, to avoid damage and leakage.


Gate Valve vs Ball Valve?

Gate valves are designed only for full open and full shut use.

It’s used to completely cut off fluid flow, not suitable for flow regulation.

Good for high pressure, high temperature and large pipeline systems, with low flow resistance when fully open.

Ball Valve:Quick on-off operation with just a 90-degree turn.

It can not only shut off flow, but also do simple flow control.

More compact, durable and leak-tight, ideal for daily industrial, water and chemical working conditions.


How to check whether the valve is open or closed?

It’s easy to tell the status by the handwheel and stem.

For gate and ball valves, it’s simple to operate.

Twist the handwheel clockwise to close the valve all the way.

Turn it counterclockwise, and it will open fully.

You can also check the valve stem to know its state.

If the stem is sticking out, the valve is open.

If it’s tucked back inside, that means it’s fully closed.

For lever-operated ball valves:

Lever in line with the pipe = open

Lever cross the pipe = closed


Why does the gate valve have leakage?

There are a few common reasons for gate valve leakage.

First, the sealing surface may get worn or dirty, with sand, dirt or impurities stuck between the seal and valve plate, which will cause poor sealing.

Second, long-term use or high pressure will damage the internal gasket and sealing parts.

Besides, if the valve is not fully closed, or often kept in a half-open state, it will also lead to medium leakage.

Improper installation and uneven pipeline pressure are also common causes.



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Chemical Industry Specific Gate Valve

Chemical Industry Specific Gate Valve

Huadu Valve Group is based in Wenzhou, China, supplying reliable industrial valves of great quality. Our star product, the Chemical Industry Specific Gate Valve, is available in anti-corrosion CF8/CF8M stainless steel and sturdy WCB carbon steel, delivering great erosion resistance and long-lasting stable performance. Built with thickened valve body and reinforced wedge sealing structure, it features low handwheel operating torque, dependable bi-directional sealing and smooth lifting movement even under corrosive chemical working conditions. It suits corrosive medium pipelines widely used in fine chemical plants, chemical raw material transportation and chemical wastewater treatment projects.
Gate Valve With Handwheel

Gate Valve With Handwheel

Huadu Valve Group is located in Wenzhou, China, and we have long focused on manufacturing durable, trustworthy industrial valves. Our Gate Valve With Handwheel enjoy great popularity among global buyers, with WCB carbon steel,CE8 stainless steel and CF3M stainless steel as the three mainstream body materials. Both materials stand steady under long-time pipeline pressure and keep consistent performance throughout years of use. Designed with standard manual handwheels and mature wedge sealing structure, the valves achieve reliable bidirectional tight shutoff. The gate lifts and lowers smoothly, and the sealing effect stays stable even under prolonged continuous operation.It is well-suited for straight-through flow pipelines with low flow resistance, commonly deployed in petrochemical plants, power generation stations and urban water treatment facilities.
Hard Seal Gate Valve

Hard Seal Gate Valve

Huadu Valve Group is based in Wenzhou, China, supplying reliable industrial valves of great quality. Our star product, the Hard Seal Gate Valve, adopts thick metal bodies with Stellite alloy overlay wedges, featuring outstanding high temperature and pressure resistance. Designed with full through-conduit and metal-to-metal hard sealing, it achieves tight bubble-tight shutoff and negligible flow loss during operation. It serves steam, thermal power, petrochemical and high-temperature pipeline projects perfectly.
Corrosion Resistant Gate Valve

Corrosion Resistant Gate Valve

Huadu Valve Group is situated in Wenzhou, China, making heavy-duty industrial valves built to hold up against tough site conditions. Our best-selling Corrosion Resistant Gate Valve uses dedicated anti-corrosion alloys like CF3M, Alloy 20 and titanium. Unlike regular carbon steel valves that easily corrode in acid, alkali or salt water, these alloys stay intact over long-term use. Each valve comes with alloy-clad wedges and a full straight bore, keeping zero leakage and low flow resistance when carrying corrosive liquids. It works great for chemical plants, seawater desalination and wastewater treatment pipelines.
High-Pressure Gate Valve

High-Pressure Gate Valve

Huadu Valve Group is based in Wenzhou, China, supplying durable, dependable industrial valves worldwide. Our flagship High-Pressure Gate Valve adopts sturdy A105 and WCB carbon steel to stand up to extreme pressure and temperature fluctuations. Equipped with Stellite hardfaced wedges and full bore design, it achieves tight shutoff with minimal flow resistance and stable long-term operation, ideal for oil & gas refineries, thermal power plants and high-pressure chemical pipelines.
Gb Gate Valve

Gb Gate Valve

Huadu Valve Group runs our valve factory in Wenzhou, China, offering sturdy industrial valves that meet strict domestic standards. Our popular GB Gate Valve is manufactured fully following national GB standards, adopting solid wedge design with good pressure and temperature tolerance. Equipped with standard flanged connections, it features full port passage to minimize flow resistance and delivers stable shut-off performance. It is widely used for heating, water supply, chemical and power station piping systems.
Stainless Steel 316L Flanged Gate Valve

Stainless Steel 316L Flanged Gate Valve

Huadu Valve Group manufactures industrial valves in Wenzhou, China, focusing on corrosion-resistant pipeline solutions. Our featured Stainless Steel 316L Flanged Gate Valve adopts premium 316L stainless steel, featuring excellent resistance to acid, salt water and chloride mediums. Equipped with flanged ends and a solid wedge sealing structure, it delivers full bore flow and stable two-way shutoff with little pressure loss. It is widely adopted in seawater desalination, fine chemical and marine engineering pipelines.
Stainless Steel 304 Flanged Gate Valve

Stainless Steel 304 Flanged Gate Valve

Huadu Valve Group’s factory is based in Wenzhou, China, supplying durable industrial valves for corrosive piping environments. Our popular Stainless Steel 304 Flanged Gate Valve, which stands up well to rust and mild acid corrosion. It comes with flanged ends and a solid wedge structure, supporting full straight flow and reliable two-way shutoff without big pressure drops. This valve is commonly installed on chemical, sewage and offshore water pipelines.
Industrial Gate Valve

Industrial Gate Valve

Huadu Valve Group runs our factory in Wenzhou, China, and we supply tough industrial valves built for long service life. Our popular industrial gate valve is cast from solid WCB carbon steel, holding up well under high pressure and heat. It comes with flanged connections and a wedge design, delivering full straight flow and tight bidirectional sealing with little pressure drop. This valve suits steam lines, chemical plants and water treatment sites very well. We are a certified valve factory with ISO and API approvals. We have full production gear and run thorough quality checks on every unit. We take OEM and ODM custom requests and can work with flexible small orders. Our solid gate valves ship to many countries and are well-liked by buyers everywhere.
Huadu Valve is a professional Gate Valve manufacturer and supplier in China. We warmly welcome you to buy high quality products at competitive price from our factory.
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