en English

China Pipeline Solution Factory

We Specialized in Custom Valve & Pipe Fittings

Welflow aims to provide a one-stop service and offer professional guidance for clients worldwide.
Ball Valve | Check Valve | Gate Valve | Globe Valve | Forged Flanges | Pipe Fittings | Valve Ball

Check Out Our Main Products

We are also welcome OEM & ODM Products in Stainless Steel.

Ball Valves

Ball Valves

This series with ANSI, DIN, & JIS Flange Standard of 1PC,2PC & 3PC.
Learn More
Gate Valve and Check Valves

Gate/Check Valves

Gate/Check Valves

This series with Gate Valve, Globe Valve, Check Valve, and Y Strainer, Including Thread and Flange Ends.
Learn More

Forged Flanges

Forged Flange

This series with ANSI, JIS, DIN, AS2129 & GOST Standard of SO, Plate, Thread and Welding Neck Shape, etc.
Learn More

Pipe Fittings

Pipe Fittings

These series are Thread and Butt-Welded Pipe Fittings, Casting and Fittings from Tubes, etc.
Learn More

Our Services Always Go The Extra Mile

Bulk Shipping

Bulk goods are transported by the sea at a low cost usually.

Quick Shipping

If hurry, we can also send it to you by air at an extra cost.

Quality Control

Our products control starts from wax investment casting; Accept 3rd-party QC.

OEM Avaliable

We support any form of OEM customization Requirements.


Accept Color Boxes and various color products sticker

Global Support

Contact us 24 x 7 to solve all your after-sales problems.

Our Happy Clients!

Good words from good people.

Your satisfaction is our greatest pursuit, and we look forward to cooperating with you.

The valves arrived on Monday. They look great. They are much better than what I have previously used because there is no separate collar in one end of the threaded holes, which became tight as the NPT fitting was screwed into the cap and often caused the ball valve to lock up completely.


Jenni, The cargo arrived on Friday; everything looks great, especially for the package.     
Fantastic excellent work so far. I am looking forward to seeing the stock, and if ok I will place another order very fast for maybe 30,000-50,000 USD this time.   

Mr. Mohab

Four Subsidiaries Company of Welflow

Your Most Potential Pipeline Solution Factory

Zhejiang Welflow is a production-oriented enterprise integrating design and development, processing and production, and sales and service. We aim to provide a one-stop service and offer professional guidance for clients worldwide. We believe we will be your best choice for importing, selecting and assembling suitable valves and fittings for the project. 

Four Subsidiaries Company of Welflow
Wenzhou Leadtek Fluid | Mingjiu Valve | Hongda Valve Ball | Jingzhou Flange


Send us the details of the sample, we will contact you in 24 hours.

Ask For A Quick Quote

We will contact you within 24 hours; please pay attention to the email with the suffix “@leadtekfluid.com”