Industrial plug valves are industrial valves that control or regulate fluid flow by rotating a "plug." Their core structure consists of a cylindrical or conical plug with a through-hole. By rotating the plug 90°, the through-hole aligns with the pipeline (fully open) or is misaligned (fully closed), thus controlling the flow of the medium. They can be used with manual, pneumatic, or electric actuators, and connection methods include flanges, welding, and threads. Due to their fast opening and closing speed and low flow resistance, industrial plug valves are widely used in industrial piping systems, especially suitable for low-pressure, normal temperature, and high-viscosity media applications.

Parameters

Valve body material	CF8
Applicable media	Oil,Gas,Water
Connection	Flange
Power	Electric
Sealing Type	Soft Seal
Warranty period	12 months
Certificate	CE ,IS09001 ,IS014001,IS045001

Advantages

Suitable for complex media

Can handle corrosive (stainless steel / PTFE lining), viscous/particulate-containing media (eccentric structure prevents clogging);

Strong resistance to harsh operating conditions

Material options include carbon steel, stainless steel, and alloys, suitable for temperatures from -40℃ to 400℃ and pressures from PN2.5 to PN25;

Reliable sealing

Modern plug valves achieve "zero leakage" through double sealing and special coatings, suitable for toxic/high-pressure media;

Multifunctionality

Multi-port plug valves can achieve media diversion/mixing, reducing the need for pipe fittings.

Features

Fast operation

Opening and closing can be completed with just a 90° rotation, suitable for applications requiring frequent switching;

Low flow resistance

When fully open, the plug's through-hole matches the pipe's inner diameter, allowing the medium to pass through with almost no obstruction;

Simple structure

Fewer parts, small size, and light weight, making installation and maintenance convenient;

Diverse sealing options

Available in lubricated type (metal plug + grease seal), non-lubricated type (PTFE or other soft sealing sleeves), and eccentric type (for wear resistance).

Application Scenarios

Petrochemicals

Crude oil/natural gas transportation, corrosive chemical pipelines;

Water Treatment

Wastewater/sludge transportation (eccentric type, anti-clogging);

Energy and Power

Power plant steam and cooling water systems;

Food and Pharmaceuticals

Sanitary stainless steel plug valves for precise fluid control;

Mining and Metallurgy

Ore pulp and tailings transportation pipelines.

Production Process

Valve Body/Plug Machining

Raw materials (carbon steel/stainless steel) are cast/forged → the valve body cavity and plug through-hole are machined;

Seal Assembly

Lubricating type valves are filled with grease, non-lubricating type valves are fitted with PTFE sealing sleeves;

Actuator Matching

Manual/pneumatic/electric actuators are connected → rotation angle is adjusted;

Testing

Pressure test, leakage test, and operational life test are performed.

Routine maintenance

Routine inspection

Regularly check for leaks at the seals and ensure smooth operation of the actuator;

Lubrication maintenance

Lubricated plug valves require regular replenishment of grease;

Seal replacement

Soft seals should be replaced every 1-2 years, and metal sealing surfaces should be ground and repaired after wear;

Cleaning

For applications involving particulate media, the valve cavity should be flushed regularly to prevent clogging.

Working Principle

The valve stem is rotated by the operating mechanism, causing the valve core to rotate around its axis:
Fully open state: The valve core passage completely aligns with the valve body passage, allowing the medium to pass through without obstruction, resulting in minimal flow resistance;
Closed state: The valve core rotates 90° (or a specific angle), and the solid part of the valve core blocks the valve body passage, thus shutting off the medium flow;
Regulating state (for some models): The valve core is rotated so that the passages partially overlap, allowing for small adjustments to the medium flow rate (but with lower accuracy than dedicated control valves).

Company Profile

SND is a leading valve manufacturer specializing in high-performance hydraulic control valves and innovative flow solutions. Leveraging international patents and technological collaborations, we strictly adhere to the ISO 9001 quality management system, ensuring zero defects in our products and earning recognition as an industry benchmark.

Our advanced automated manufacturing processes and integrated network management ensure product reliability and have been approved by China's construction authorities. With a nationwide sales and service network, we are committed to continuous innovation, developing next-generation valve technologies and providing globally leading, reliable, and efficient flow control solutions.

FAQ

Q: 1. What are the differences between plug valves and ball valves?

A: Plug valves have a cylindrical/conical plug and are suitable for viscous/particulate media; ball valves have a spherical body, offering superior sealing performance but are not suitable for high-wear conditions.

Q: 2. Can non-lubricated plug valves be used at high temperatures?

A: Generally no, PTFE seals have a temperature resistance of ≤180℃. For high-temperature applications, choose lubricated or metal-seated plug valves.

Q: 3. What is the packaging method? How do you ship?

A: We usually use wooden pallet packaging according to your requirements. We typically use sea freight, but air freight is also available.

Q: 4. How do you handle after-sales issues?

A: The warranty period is 12 months from the date of shipment; we will be responsible for all quality issues.

Q: 5. What is the average delivery time?

A: Sample delivery time is approximately 2-5 days. The delivery time for mass production is approximately 15-60 days after receiving the deposit.

Q: 6. How can I track the production process?

A: We will provide a production schedule and relevant photos every two weeks. The delivery time starts from when both of the following conditions are met: (1) We receive your deposit; (2) We receive your final confirmation of the product. If our delivery time cannot meet your deadline, please communicate your needs with your sales representative. In any case, we will do our best to adjust the production plan to meet your needs.

Q: 7. How can I trust you and your company?

A: We are a certified supplier and reputable company on MIC (Made-in-China.com), and we are committed to building long-term cooperative relationships with our customers.

Hot Tags: industrial plug valve, China industrial plug valve manufacturers, suppliers, factory, Lubricated Plug Valv, High Pressure Control Valve, plug valve, Industrial Plug Valve, API 6D Control Valve, Smart Control Valve