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Premium Industrial Valves & Strainers Manufacturer

High-performance gate, globe, check, ball, butterfly, and plug valves for power stations, oil & gas, marine, and refinery applications. Trusted by global partners since 2016.

About N-LValve

Yongjia South Trading Co., Ltd is a joint venture company of Zhejiang Chaolian Valve Co., Ltd, established in 2016 with the mission to promote industrial strainers and all types of valves globally. Our team comprises professionals from reputable factories in Oubei Town, Wenzhou City, each with over 10 years of industry experience.

We maintain strong partnerships with specialized manufacturers of high-pressure valves, industrial strainers, plug valves, butterfly valves, ball valves, and valve spare parts. This strategic network allows us to deliver competitive pricing, technical accuracy, fast delivery, flexible payment terms, and reliable after-sales service.

10+
Years Avg. Experience
2016
Founded
Factory Overview

Our Product Range

Engineered for reliability and performance in demanding industrial environments including FPSO projects, marine, power plants, oil & gas, and refineries.

Pressure Seal Gate Valve

Pressure Seal Gate Valve

High-pressure applications in power stations and refineries. API 602 compliant with forged steel construction.

Swing Check Valve

Swing Check Valve

Prevents backflow in pipelines. Ideal for oil & gas and marine systems. Durable cast steel body.

Trunnion Ball Valve

Trunnion Ball Valve

Metal-seated design for high-pressure and high-temperature environments. API 6D compliant.

Y Type Strainer

Y Type Strainer

ANSI standard industrial strainer for filtering debris in liquid and gas lines. Stainless steel construction.

Wafer Dual Plate Check Valve

Compact design for space-constrained installations. Used in refineries and marine applications.

Bolt Bonnet Globe Valve

Precise flow control in high-pressure systems. Suitable for power plant and chemical processing.

Basket Type Strainer

High-capacity filtration for large pipelines. Removable basket for easy maintenance.

Sleeved Plug Valve

Corrosion-resistant design with lubricated plug for smooth operation in harsh environments.

Metal Seal Butterfly Valve

Double or triple offset design for zero leakage. Ideal for high-temperature gas systems.

Valve Spare Parts

Forged steel raw materials, hard alloy coated balls, counter flanges, and accessories.

High Pressure Gate Valve

Designed for extreme pressure conditions in power generation and petrochemical industries.

Power Station Valve

Specialized valves for steam, feedwater, and condensate systems in thermal and nuclear power plants.

Why Choose N-LValve?

We deliver more than just valves — we provide industrial solutions with integrity.

Quality Assurance

All products undergo rigorous hydraulic testing and quality checks. Certified to international standards.

Fast Delivery

Efficient logistics and production tracking ensure on-time delivery, even for urgent orders.

Expert Support

Our team speaks your language — technically and commercially. We guide you from inquiry to shipment.

Transparent Process

Receive photos, videos, and weekly progress reports during manufacturing. Full visibility guaranteed.

Trusted Partnership

We act as your purchase agent — sourcing, inspecting, and managing orders with full accountability.

Global Reach

Serving clients in Europe, North America, Middle East, and Asia with reliable export documentation.

8+
Product Categories
78
Gate Valve Models
31
Globe Valve Types
2016
Year Established

Frequently Asked Questions

What industries do you serve?

We serve power generation, oil & gas, marine, FPSO projects, refineries, chemical processing, and water treatment industries.

Are your valves certified?

Yes, our valves comply with API, ANSI, and other international standards. Certificates are available upon request.

Can you provide custom valve solutions?

Absolutely. Our engineering team can customize valves based on your technical specifications and operating conditions.

How do you ensure quality control?

We conduct raw material inspection, in-process checks, final hydraulic testing, and provide documentation including NDT reports.

What is your typical lead time?

Standard products: 30–45 days. Custom orders: 45–60 days. Urgent deliveries can be arranged upon request.

Get in Touch

Reach out to our team for product inquiries, technical support, or partnership opportunities.

Contact Information

+86 13968974444 (Mr. Jack)
+86 18989797637 (Mr. David)
Dongou Industry Zone, Oubei Town, Wenzhou, Zhejiang, China
WeChat: jinxilei1983 / CHC78877

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