On July 8 th, three of our clients from Malaysia visited us. We arrived at Wenzhou branch on July 9th, and introduced our company to help them better understand Dervos. After introduction, we started business talk to communicate the point they care about and the details we need to pay more attention in the future. In the afternoon, we visited factories of forging and casting gate, globe, check valves and ball valves. In this way, clients can know much more about our products. Lastly we had traditional Chinese food together. This trip is quiet big step between clients and us to cooperate closely in the future. Welcome to China and welcome to Dervos!!

Butterfly valve is one of the most frequently used valves, which we commonly comes with concentric soft seal butterfly valve, double eccentric butterfly valve and triple eccentric butterfly valve. Usually, the concentric soft seal butterfly valve is mainly used in normal temperature, low pressure working conditions, such as water supply and drainage, water conservancy engineering, municipal construction and other fields.Then  what is double eccentric butterfly valve? What is triple eccentric butterfly valve? And what conditions do they apply to? Double Eccentric Butterfly Valve PTFE seated double eccentric butterfly valve is Corrosion resistant. Metal seated double eccentric butterfly valve is high temperature resistance. But metal seated double eccentric butterfly valve is not able to withstand high pressure. AS the plate is directly contact with the sealing face which will cause leakage when used in high pressure working conditions. Double eccentric butterfly valve is used in water supply and drainage, sewage, construction, petroleum, chemical industry, light textile, papermaking, hydropower, metallurgy, energy and other fields. Triple Eccentric Butterfly Valve Triple Eccentric Butterfly Valve makes the best of both concentric and double eccentric butterfly valves.There are more choices for the seat material of triple eccentric butterfly valves, and is able to suit both low and high temperature and All kinds of acid, alkali and other corrosive media. In addition,  triple eccentric butterfly valve can achieve zero leakage, especially suitable for large diameter valve, and, in the use of shut-off valve, can replace the gate valve and ball valve. When used to regulate the flow rate, it can replace the cumbersome globe valve. At present, the triple eccentric butterfly valve is widely  used in oil mining, oil refining, petrochemical, energy generation and other important industrial fields of the pipelines. With people's continuous research,it is believed that the triple eccentric butterfly valve will be used in more and more fields.

Last Friday on July 22nd, Dervos Mid-Year Meeting 2019 was held in Xiamen Office. Our colleagues in Wenzhou office joined us through audio conference. During the meeting, all departments are supposed to do a summary of the first half year and make a plan for next six months. One interesting point mentioned by the logistic department is that railway transportation has a substantial growth in 2019, since a lot of orders in Europe will be delivered by train due to its lower cost. QC department listed out those suppliers with a good quality performance and cooperation attitude. For those, we can have a deeper cooperation in the next half year. Meanwhile, some of the suppliers are not recommended after first cooperation. Purchasing department made a conclusion of on-time delivery for the first six months. Regarding the weekly status follow up and report, there is something we can do to achieve better on-time delivery. Last month, the whole Dervos sales department is divided into two groups. Two managers of these two newly established sales groups reported separately our sales performance and set a new goal for the next half year. Thanks to this company restructuring, both groups are more inspired to compete and fight for the same goal-better sales performance. Our sales director Ken brought us the good news that our sales amount has exceed the same period of last year. Finally, our big boss Eric made a conclusion for this meeting, reviewing the important achievements we have made. Also, we have big plan for the next six months- to set up finished product center and to visit our clients abroad. Although we have gone through a lot of pain and hardships during the company reforming and development in this half year, we still hold the belief that all the efforts we made will pay off one day. We are always on the way to provide Dervos clients with better customer service and products.

The butterfly valve, also known as the flap valve, is a simple regulating and isolation valve. The closing member (valve or disc) is a disc that rotates around the valve shaft to achieve opening and closing. From the structure of valve, butterfly valves can be classified into concentric butterfly valve, double offset butterfly valve, and triple offset butterfly. For concentric type, the center of the stem is on the center line of the valve body and passes through the center of the sealing surface section. For double eccentric type, the stem center forms a deviation from the valve seal section and deviates from the valve body centerline. For triple eccentric butterfly valve, the third eccentric is valve body center forms an angular deviation from the center of the valve body sealing surface. From the connection type of butterfly valve, there wafer butterfly valve, lug butterfly valve, flanged butterfly valve and butt-weld butterfly valve. For wafer type, there are two or more center holes to help with valve installation. For lug type, the around bolted holes make lug type a safer choice compared to wafer type. The double flanged butterfly valve are often used for large-size butterfly valves. The butt welded butterfly vale are used in high pressure application. From the seat type, we have soft seat butterfly valve and metal seat butterfly valve. Generally speaking, concentric butterfly valve and double offset butterfly valve own soft sealing. While, the triple offset butterfly valve has metal-to metal seat.

Last week on June 27th, Dervos people gathered together to celebrate this big day of Dervos- 11th anniversary. The party started at 10:00 in the morning, held in a villa with delicate and western decoration. There are many kinds of recreation facilities in this villa, from KTV, VR games, to billiards and home theater； Our manager Ken was deeply attracted by the VR games. He spent at least four hours on this game and even wanted to buy a game machine (shown in the picture below) home； Boys always like to play billiards. Our boss Eric and QC Jim played attentively, and even our QC manager Lu watched the game so intently. It seems like a real competition between two men. The KTV room was almost occupied by girls. The song “The Sea” Rachael was singing is her “signature song” in Dervos； Look at our fancy dinner! The hot pot and spicy crayfish were all cooked by our sweet and considerate boss, Eric. Everyone was stuffed by the really delicious food. Finally, we called it a day by having this nice group photo. Like Dervos motto, we played hard and worked hard on this big day. In the past 11 years, Dervos people have fought together and had fun together. We believe in the future we will make more success and have much more fun. We will have 20th, 30th, 40th and more anniversaries to come. Lastly, we would like to express our gratitude for all the support we have received in these 11 years from our customers. Hope we can work together to achieve more. Hope to see more of you become Dervos customers and partners.

In February, China's crude oil imports rose 20 percent year-on-year to their highest level ever. Due to the current market situation, the number of crude oil importers is rapidly increasing. As the world's second-largest oil consumer, China imported 31.8 million metric tons of crude last month, or a record 8 million barrels a day, DeVos found, according to data released Tuesday by China's General Administration of Customs. . Per day, February's imports were also up about 27 percent from January's 6.29 million barrels per day. Last week, Beijing-based consultancy SIA Energy claimed it hoped China's crude imports would rise by 860,000 bpd, or nearly 13 percent, in 2016, driven by storage needs, strong gasoline demand and fuel exports. China's largest energy group, state-owned China National Petroleum Corporation (CNPC), forecast in January that net crude imports would rise 7.3 percent in 2016.