Welco was founded in 2009, which is one of the leading valve suppliers in China. After more than ten years of innovation development, nowdays the group has three manufacturing bases, more than 10 professional collaboration factories as one whole, total covering 65000 square meters, over 200 staffs which including 15 senior engineers and 30 inspectors, and 500 sets of precise equipments. 

The group specializes research & design, foundry, production, sales & service of ball valve, gate valve, globe valve, check valve, butterfly valve, power-station valves, and other special non-standard valves, covering hundreds of types of valves, thousands of specifications. 

Now we have been assessed as a national high-tech enterprises, Yongjia valve characteristic industrial enterprises, research and development department has been identified as provincial technical center by the 20 national patents. We now hold Norway DNV of IS09001 quality system certification, API-6D & API 609 certification, CE certification, IS014001 environmental management system certification, the OHSAS18001 occupational health management system certification, the General Administration of Quality Supervision, Inspection and Quarantine "AZ" logo certification.

We have the outstanding R&D technology team for special valves.

We have technical engineers, skillful workers and professional equipments to design and manufacture high quality valves to meet customer's requirements: 

Floating ball valves

Trunnion ball valves

Forged ball valves

Top entry ball valves

Cryogenic valves

High temperature & pressure valves

Gate/Globe/Check valves

Butterfly valves

The company passed the certifications.

We insist on the basic character of "Service with sincere heart, create the valued products, seeking excellence to satisfy our clients", and carries on the principle of "Quality is the life of enterprise" all the time.

We took the lead in the industry and passed API-6D, PED-CE, TUV / DNV and TS Product quality reaches international advanced level and we can provide various standards of valve product series.

API 6D

API 609

ISO9001

ISO14001

OHSAS18001

PED CE 

ISO 45001

Our advanced facilities increases our production capacity year by year.

As a modern production group enterprise, we guarantee the situation of each order with the advanced numeral control equipments ensure our internal parts accurate and excellent at a long-life service, the production level of each workshop and the production distribution of the entire production system as one. We have ball valve workshop, GGC valve workshop, butterfly valve workshop, forged steel valve workshop, so that our productivity and efficiency can be greatly improved:

1) Use forecasting technology to forecast the sales of products of each independent production line;

2) Calculate the number of equipment and labor required to meet the demand;

3) Reasonably allocate the available equipment and labor quantity.

We provide valves with 100% quality guarantee.

Seller will replace without charge or refund the purchase price of products provided by Seller which prove to be defective in material or workmanship, provided in each case that the product is properly installed and used and that written claim, specifying the alleged defect, is presented to the Seller within 18 months from the date of shipment or 12 months after installation, whichever occurs first. Seller shall in no event bear any labor, equipment, engineering or other costs incurred in connection with repair of replacement. The warranty stated in this paragraph is in lieu of all other warranties, either expressed or implied. With respect to warranties, this paragraph states Buyer’s exclusive remedy and seller’s exclusive liability.

At present, Welco technical research center utilizes the most advanced computer technology to improve the existing products and develop the new lines, this includes a highly educated and trained engineering team and a comprehensive internal computer network which links the entire operations of design, manufacturing and administration.

We produce faster with higher flexibility and efficiency. 

Having one of the leading modernized industrial parks in the valve hometown of China, you can be assured your valve order will be delivered timely! 

The supply scope includes not only finished products, but also machined parts such as valve internal parts (ball / seat / body / stem etc) for those quick and immediate requirements, plus large capacity for different sizeable orders. 

We can deliver our orders to all over the world, by express, airplain, ocean shipping, train/truck transporation. 

With friendly and professional workmates, our commitment to exceptional customer service ensures a pleasant delivery experience for your esteemed firm.