China Gate Valve Manufacturers - Gate Valve Suppliers and Factory

Your Professional Gate Valve Supplier

TIANJIN XTD VALVE CO., LTD. is a professional manufacturer of various valves, including butterfly valves, gate valves, filters, ball valves, globe valves, and more.

Unlike ordinary valve manufacturers, XTD VALVE owns its own rubber factory and valve stem processing facility, allowing for greater control over quality and production efficiency.

Non Rising Valve
The non-rising stem gate valve features carbon steel or stainless steel body with built-in stem nut design, offering compact structure ideal for underground pipelines or space-constrained
Gate Valve Non Rising
The stainless steel non-rising stem resilient seat gate valve features a 304/316 stainless steel body with fully enclosed stem design, optimized for space-constrained piping systems. Ideal for
Long Stem Gate Valve
This valve combines a rugged cast steel body with rising stem design and precision bevel gear mechanism, engineered for large-diameter, high-pressure applications. The externally threaded stem
Rising and Non Rising Stem Gate Valve
The PN16 ductile iron rising stem gate valve features a high-strength ductile iron body with external stem design, optimized for medium-high pressure pipeline systems. The linearly moving stem
Rising Valve
Designed for fire water supply and emergency pipelines, this rising stem fire protection gate valve features a ductile iron body with fully exposed stem mechanism, enabling rapid operation and visual
Rising and Non Rising Gate Valve
This grooved rising stem resilient seat gate valve combines a ductile iron body with visible stem design and grooved coupling system, optimized for fire protection, water supply, and industrial
Hard-Sealed Cast Steel Gate Valve
The Hard-Seal Rising Stem Cast Steel Gate Valve is designed for reliable shut-off in medium-high pressure systems. Featuring a WCB cast steel body, ductile iron (GGG50) disc, and hard-faced sealing
SS Hard-Seal API Gate Valve
The Hard-Seal Stainless Steel American Standard Rising Stem Gate Valve is engineered for high-temperature, high-pressure, and abrasive media. Featuring an all-304/316 stainless steel body,

Why choose us

Our Certificates
Our products have passed ISO 9001 certification. We have also been recognized as a high-tech enterprise, received an AAA credit rating certificate, and hold multiple patents.

Production & Market
Since its establishment, TIANJIN XTD VALVE CO., LTD. has gained strong domestic sales due to its excellent quality and solid reputation.While maintaining a firm foothold in the domestic market, the company actively explores international markets by participating in global exhibitions, showcasing product advantages, and establishing relationships with customers worldwide. Our products are exported to multiple countries and regions, including Indonesia and other international destinations.

Our Services
From CAD drawings to delivery – We provide seamless service:
● 1-on-1 Engineering Support with over 30 years of expertise
● 15-Day Fast Delivery for standard valves
● Custom Solutions at no additional cost

Gate Valve

A gate valve is the most common valve for water supply systems. It represents a linear-motion isolation valve and has a function to stop or allow the flow. Gate valves got their name from the closure element sliding into the flow stream to provide shutoff and, therefore, acting like a gate. Gate valves are used to isolate specific areas of the water supply network during maintenance, repair works, new installations, as well as to reroute water flow throughout the pipeline.

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Material Specification

Name parts

Driving cap

Dust cover

O-ring

Bonnet

Body

Hand heel

Shaft cover

Thrust bearing

Bolt

Valve stem

Copper nut

Disc

Material

GG25

NBR

GG25

BRONZE

SUS410

Bronze

GG25 coated with EPDM or NBR

DN (mm)

Nominal diameter

PN (MPa)

Nominal pressure

Working temperature

Sealing pressure

Valve body stress

Applicable medium

DN50-400mm

1.0/1.6/2.5MPa

0-80℃

1.1 times the nominal pressure

1.5 times the nominal pressure

Water, oil, gas

DN (mm) Nominal diameter	D1		D2		N-Ød		L	H
	1.0MPa	1.6MPa	1.0MPa	1.6MPa	1.0MPa	1.6MPa
50	135		125		4-19		178	340
65	185		145		4-19		190	370
80	200		160		8-19		203	410
100	220		180		8-19		229	450
125	250		210		8-19		254	180
150	285		240		8-23		267	550
200	340		295		8-23	12-23	292	630
250	405		350	355	12-23	12-28	330	750
300	460		400	410	12-23	12-28	356	820
350	520		460	470	16-23	16-28	381	980
400	580		515	525	16-28	16-31	406	1010

Technical Parameters

Size	DN32-DN600	DN650-DN2000
Working pressure	16Bar	10Bar
Shell	24Bar	15Bar
Seal	18Bar	11Bar
Operating Temperature	-45°C~+150°C
Operating Environment	Ballast and bilge system Chemical processing Desalination plants Drilling rigs Drinking water Dry powder Food and beverage Gas plants HAVC Mining industry Paper industry Sand handling Seawater Sugar industry Thermo technical water treatment Waste water
Driving Method	Hand Lever Worm Gear Electric Pneumatic

Executive Standards

Design Standard	EN 593, MSS SP67, API 609, BS 5155
Inspection & Test	API 598, ISO 5208, EN 12266
End Standard	ANSI B16.1 CL. 125LB & B16.5 CL. 150LB
	AS 2129 Table D & E
	BS 10 Table D & E
	DIN 2501 (PN6, PN10, PN16)
	EN 1092 (PN6, PN10, PN16)
	ISO 2531 (PN6, PN10, PN16), 7005 (PN6, PN10, PN16)
	KS B / JIS B 1511 / 2210 (5K & 10K)
	MSS SP44 CL. 150LB
	AWWA C207
	SABS 1123 Table 1000/3 & Table 1600/3
Face to Face	ISO 5752, EN 558, MSS SP67, API 609, DIN 3202
Top Flange	ISO 5211

Main Features

01/

Gate-like Component

A gate valve uses a gate-like component to control flow. The gate is typically a flat disc or a wedge that slides up and down perpendicular to the flow.

02/

Operation

Manually operated gate valves are controlled by turning a handle or wheel, which moves the gate up or down via a threaded stem. Typically, when the gate is lifted, it allows fluid to pass through. When the gate is lowered, it blocks the flow.

03/

Use Cases

Gate valves are typically used in applications where a straight-line flow of fluid with minimal restriction is desired. They are used in on/off applications where the valve is either completely open or completely closed.

04/

Not for Throttling

These valves are not suitable for throttling (regulating flow by partially opening or closing) because accelerated flow through a partially open gate can cause damage to the gate and sealing components.

05/

Leakage and Wear

When fully opened, the gate is completely removed from the flow path, creating minimal pressure drop across the valve.

06/

Design Variants

Gate valves come in various designs. In non-rising stem designs, the gate travels up and down the stem as the stem is rotated. In rising stem valves, the gate and stem move together as the stem is rotated.

Consider the following criteria when selecting a gate valve

Connection size

The connection size needs to match the size of the piping it connects to.

Max pressure at 20 °C/68 °F

Exceeding the valve's max operating pressure can damage it and reduce its lifetime.

Compression class

Compression class (e.g., PN10 or PN20) indicates the max pressure (bar) the valve can handle under normal operation.

Hand wheel height (mm)

The hand wheel sticks out above the body of the gate valve. Know how this affects the valve's total height when in the closed and open positions.

Valve bore (mm)

The internal diameter of the valve.

Difference Between Gate Valve vs Check Valve

Gate valves and check valves serve different purposes in fluid control systems. While gate valves are primarily used for starting and stopping the flow, check valves serve to prevent backflow. The following sections highlight some of these differences.

Operational Differences

Gate Valves	Check Valves
Operates either manually or automatically to fully allow or completely shut out flow. Could permit bi-directional flow but not suitable for metering flow.	Design is for automatic operation for flow in only one direction.

Applications

Gate Valves	Check Valves
Suitable for applications requiring no obstruction on the flow path. For example, water distribution systems, oil pipelines, and chemical processing plants.	Ideal for systems where backflow could damage or reduce efficiency. Instances include pump systems, condensate lines, and fuel systems.

Pressure Drop

Gate Valves	Check Valves
Pressure drop across gate valves varies according to the type.	Pressure drop across check valves varies according to the type.

Installation Space

Gate Valves	Check Valves
Generally requires a lot more installation space. However, non-rising stem gate valves offer a relatively compact design.	Can easily fit into tight spaces because of their compact design.

Applications of Gate Valves

Gate valves are versatile and are used in a wide range of applications across various industries. Some common applications include:

Water Supply Systems
Gate valves are commonly used in water supply systems to control the flow of water. They are ideal for applications where a full open or close position is needed, such as in municipal water mains, distribution systems, and irrigation systems.

Oil and Gas Industry
In the downhole drilling and oil and gas industry, gate valves are used to control the flow of crude oil, natural gas, and other hydrocarbons in pipelines. Their ability to handle high pressure and provide a reliable seal makes them a preferred choice in these applications.

Chemical Processing
Gate valves are used in chemical processing plants to manage the flow of various chemicals, including corrosive and hazardous substances. The choice of valve material is crucial in these applications to ensure compatibility with the chemicals being handled.

Power Generation
In power plants, gate valves are employed in steam and water pipelines to control the flow of steam and cooling water. They are particularly useful in high-temperature and high-pressure environments.

Wastewater Treatment
Gate valves are also used in wastewater treatment plants to manage the flow of sewage and treated water. Their ability to handle large volumes of fluid makes them suitable for these applications.

What Types Of Gate Valves Are There

There are various types of gate valves available to industries working in the control of fluid flow. They are:

Knife gate valves

Wedge gate valves

Parallel slide gate valves

Slab gate valves

Parallel expanding gates

Packing & Delivery

Packing Details	Inner Package: Nubble bags + plastic cover Outer Package: Plywoodcase with dryer inside
Delivery Details	30~45 days after receiving the payment

FAQ

Q: Are you trading company or manufacturer ?

A: We are factory.

Q: How long is your delivery time?

A: Generally it is 5-10 days if the goods are in stock. or it is 35- 48 days if goods are not in stock, it is according to quantity.

Q: Do you provide samples ? is it free or extra ?

A: Yes, we could offer the sample for free charge but do not pay the cost of freight.

Q: What is your terms of payment ?

A: 100%TT in advance. 30% T/T in advance ,balance before shippment.

We're well-known as one of the leading gate valve manufacturers and suppliers in China. Please feel free to buy high quality gate valve at competitive price from our factory. For more information, contact us now.