E-mail: info@slv-cn.com       Tel: +86-189-0515-4687
Company Advantages
Corporate Strength
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Our Advantage

Why SLV Is Trusted By So Many
Global Importers?
Why SLV Is Trusted By So Many Globel Importer?
Direct Factory
We have our own R&D dept with self-developed mould and our own production line.
Full-range Product
Our product suitable for various fields and we can provide diversified choices according to different working conditions.
Guaranteed Quality
High quality standards, one purchase with lifetime service, quality assurance is unequivocal.
Service Team
Professional service team with timely reply and detailed answer.
Control Valve
Electric control valve
Pneumatic control valve
Pneumatic control valve
Pneumatic control valve

Shoulong Valve Applications In Multiple Industries

We specialize in manufacturing a wide variety of valves, including ball valves, butterfly valves, globe valves, gate valves, check valves, and solenoid valves.
Company News
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Our team participated in Indo Water 2025 Expo & Forum in Jakarta, showcasing a wide range of valve solutions, including ball valves, butterfly valves, and actuators. Through discussions with industry partners and customers, we explored valve applications in water treatment, wastewater management, seawater desalination, and industrial recovery, while gaining valuable insights into the Indonesian market and strengthening future cooperation.

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Shoulong valve Co., Ltd (SLV) was early founded in 1988 in Taiwan. In 2000, started to expand the scale of production in mainland China. Relying on the early production experience, Jiangsu Shoulong Valve Co., Ltd was established in 2014 as a sole company. Jiangsu Shulong Valve Co., Ltd is dedicated

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Shoulong valve Co., Ltd (SLV) was early founded in 1988 in Taiwan. In 2000, started to expand the scale of production in mainland China. Relying on the early production experience, Jiangsu Shoulong Valve Co., Ltd was established in 2014 as a sole company. Jiangsu Shulong Valve Co., Ltd is dedicated

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Our company attended the 8th FLOWTECH CHINA(SHANGHAI)exhibition.Show time: 2019.Jun.3rd ~ 2019.Jun.5thit it. Address: National Convention and Exhibition Center (Hongqiao)Our booth No.: 6.2H827Many customers from all over the world come to visit our booth for negotiation.

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industry news
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2025/09/25

Butterfly valve seat materials play a critical role in sealing performance and service life. From EPDM and NBR to PTFE, FKM/Viton, Silicone, and Metal seats, each material offers unique advantages in chemical resistance, temperature limits, and applications. This article explains the features of each seat type and provides a quick selection guide to help buyers choose the right butterfly valve seat material for water, oil, gas, food, and chemical pipelines.

2025/09/25

Butterfly valve seat materials play a critical role in sealing performance and service life. From EPDM and NBR to PTFE, FKM/Viton, Silicone, and Metal seats, each material offers unique advantages in chemical resistance, temperature limits, and applications. This article explains the features of each seat type and provides a quick selection guide to help buyers choose the right butterfly valve seat material for water, oil, gas, food, and chemical pipelines.

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2025/09/23

Choosing the right butterfly valve body material is critical for performance and service life. This article explains the strengths and limitations of the most common materials — including cast iron (FC), ductile iron (FCD, GGG40, GGG50, DI), carbon steel (WCB, A105), stainless steel (CF8/CF8M), duplex stainless steel (2520, 2507), aluminum bronze, and plastics (PVC, CPVC, PVDF). We cover where each material fits best: from water and HVAC pipelines to chemical, marine, and high-temperature applications. A quick selection guide with corrosion resistance ratings helps buyers make faster, smarter decisions.

2025/09/23

Choosing the right butterfly valve body material is critical for performance and service life. This article explains the strengths and limitations of the most common materials — including cast iron (FC), ductile iron (FCD, GGG40, GGG50, DI), carbon steel (WCB, A105), stainless steel (CF8/CF8M), duplex stainless steel (2520, 2507), aluminum bronze, and plastics (PVC, CPVC, PVDF). We cover where each material fits best: from water and HVAC pipelines to chemical, marine, and high-temperature applications. A quick selection guide with corrosion resistance ratings helps buyers make faster, smarter decisions.

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2025/09/18

Choosing the right butterfly valve can be challenging — from water supply to chemical processing, each application requires a different solution. This buyer’s guide explains the main butterfly valve classifications: by function (water, sanitary 304L/316L, high-performance, corrosion-resistant, high-temperature, vacuum), by structure (concentric, double eccentric, triple eccentric), by connection (wafer, lug, flanged), and by operation (manual, electric, pneumatic). With over 30 years of valve manufacturing experience, we help buyers select the most reliable valve for their systems.

2025/09/18

Choosing the right butterfly valve can be challenging — from water supply to chemical processing, each application requires a different solution. This buyer’s guide explains the main butterfly valve classifications: by function (water, sanitary 304L/316L, high-performance, corrosion-resistant, high-temperature, vacuum), by structure (concentric, double eccentric, triple eccentric), by connection (wafer, lug, flanged), and by operation (manual, electric, pneumatic). With over 30 years of valve manufacturing experience, we help buyers select the most reliable valve for their systems.

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2025/09/16

Butterfly valves are compact, cost-effective flow control solutions widely used in water treatment, wastewater, HVAC, and industrial pipelines. This guide explains the key parts of a butterfly valve – body, disc, seat, and stem – and how they work to regulate flow. It also compares manual, electric, and pneumatic operation methods, and provides selection tips for wafer, lug, and flanged types. With the right choice, butterfly valves ensure reliable performance across diverse applications.

2025/09/16

Butterfly valves are compact, cost-effective flow control solutions widely used in water treatment, wastewater, HVAC, and industrial pipelines. This guide explains the key parts of a butterfly valve – body, disc, seat, and stem – and how they work to regulate flow. It also compares manual, electric, and pneumatic operation methods, and provides selection tips for wafer, lug, and flanged types. With the right choice, butterfly valves ensure reliable performance across diverse applications.

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2025/09/12

Choosing the right material is critical when selecting a metallic ball valve. Stainless steel, carbon steel, duplex stainless steel, and alloy steel each offer unique strengths for different industries and working conditions. This guide explains their corrosion resistance, advantages, and typical applications to help buyers make smarter decisions.

2025/09/12

Choosing the right material is critical when selecting a metallic ball valve. Stainless steel, carbon steel, duplex stainless steel, and alloy steel each offer unique strengths for different industries and working conditions. This guide explains their corrosion resistance, advantages, and typical applications to help buyers make smarter decisions.

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2025/09/10

Discover the main classifications of ball valves — by actuation, structure, connection, and application — with selection tips to choose the right valve for your pipeline.

2025/09/10

Discover the main classifications of ball valves — by actuation, structure, connection, and application — with selection tips to choose the right valve for your pipeline.

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2025/08/28

Ball Valve, two of the most common connection types are threaded ball valves​ and flanged ball valves. Understanding their structural differences and application scenarios is essential to making the right choice for your project. Threaded Ball Valve: if you need compact design, quick installation, and cost savings for smaller pipelines. Flanged Ball Valve: if you need strength, reliability, and easier maintenance for large, high-pressure, or critical systems.

2025/08/28

Ball Valve, two of the most common connection types are threaded ball valves​ and flanged ball valves. Understanding their structural differences and application scenarios is essential to making the right choice for your project. Threaded Ball Valve: if you need compact design, quick installation, and cost savings for smaller pipelines. Flanged Ball Valve: if you need strength, reliability, and easier maintenance for large, high-pressure, or critical systems.

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2025/09/02

Learn about the working principles, structure, and advantages of ball valves. Explore how they provide efficient fluid control in industries like oil & gas, chemical processing, and more.

2025/09/02

Learn about the working principles, structure, and advantages of ball valves. Explore how they provide efficient fluid control in industries like oil & gas, chemical processing, and more.

Cooperative Partners

Over the years, we have established cooperative relationships with more than 500 customers from over 42 countries.
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Contact Us
  Tel: +86-189-0515-4687
            +86-180-6165-9285
  Phone: +86-25-5885-5535
  E-mail: info@slv-cn.com
  Address: No.22, Liuzhou North Road, Pukou District, Nanjing, Jiangsu, China

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