For Dervos, 2022 is a meaningful, valuable and rewarding year. With the busy and hard work, we unknowingly ushered in 2023. On February 3, 2023, Dervos held the 2022 annual meeting. First, the heads of each department gave a brief description of the work content of their department. They summarized the achievements and deficiencies of the past year, and also formulated the development direction and goals for the coming year. Then, Eric, our general manager summarized the major achievements of Dervos in 2022: ①Major orders are delivered on time with high quality; ②On the basis of maintaining the original certificate, a variety of certificates have been added; ③Have more in-depth cooperation with customers; ④Sales performance hit a record high. In addition, Eric also pointed out the existing problems and encouraged everyone to learn from experience and make progress together. At the end of the meeting, Eric planned the development direction for 2023, and put forward the key words of Dervos: "Going Out" and "Coming In". So we will have more opportunities to communicate face-to-face with our partners and enhance communication. After the successful conclusion of the annual work summary, we ushered in the annual dinner. The highlight of this dinner is "Cash Bo Bing". "Cash Bo Bing" has the same rules as regular Bo Bing, except that the rewards are changed to cash, which is more thrilling and exciting! This time, we divided into three tables: A, B and C. During the Bo Bing, everyone was very enthusiastic and lively. In the end, Ken at table A, Sam at table B, and Trista at table C won the first prize and took away the grand prize! On this special day, Dervos is grateful to all business partners for their trust. Because of you, Dervos can develop more calmly, firmly and rapidly in the future. Dervos has excellent and responsible employees, so we can better understand your needs and continue to provide more professional and meticulous services. Let's create a better tomorrow together!

Wedge gate valve is a kind of gate valve. It is named for its sealing surface and vertical center line at a certain angle, that is, the two sealing surfaces are wedge-shaped. Wedge gate valves are divided into rising stem wedge gate valves and non-rising stem wedge gate valves. In the rising stem wedge gate valve, the stem moves up and down, and the stem nut is fixed. The non-rising stem gate valve has a fixed stem, and the disc moves up and down to complete the opening and closing. The driving methods include: electric, pneumatic, manual, gas-hydraulic, etc., and the connection methods adopt flange type, welding type, and wafer type. Working Principle The opening and closing part of the wedge gate valve is the wedge, and the movement direction of the gate is perpendicular to the direction of the fluid. Wedge gate valve can only be fully opened and fully closed, not suitable for regulation and throttling. Wedge gate valve generally completes the opening and closing of the valve by moving the valve stem up and down with the rotating hand wheel. Structural Characteristics 1. Compact structure, reasonable design, light and flexible, good rigidity of the valve, smooth passage, small flow coefficient; 2. The sealing surface is made of stainless steel and hard alloy, which has a long service life; 3. With flexible graphite packing, the seal is reliable. Application Range Wedge gate valve is widely used in electric power, petroleum, chemical industry, metallurgy, mining, sewage treatment and other industrial fields, especially in the ash removal and coal washing plant equipment of power stations.

Resilient seated sealing gate valve utilizes the compensation effect of the elastic deformation of the overall rubber covering of the gate to achieve a good sealing effect, and overcomes the problems of poor sealing, water leakage and rust in general gate valves. Resilient seated sealing gate valve can be widely used in tap water, sewage, construction, petroleum, chemical industry, food, medicine, textile, electric power, shipbuilding, metallurgy, energy system and other working conditions, and it is used as a shut-off device on the fluid pipeline. Features of Resilient Seated Sealing Gate Valve: 1. Flat-bottom valve seat, no dirt accumulation, more reliable sealing. 2. The wedge is covered with nitrile rubber as a whole, and the internal parts of the valve are made of corrosion-resistant stainless steel and copper alloy materials, which can be used in the sewage system and adapt to the harsh working environment. 3. Small size, light weight, easy to install and maintain. 4. The valve stem is sealed with three O-rings, which greatly reduces the friction resistance when switching, and the switch is light and water-proof. 5. The valve body is made of precision casting, and the precise geometric dimensions make the valve body tight without any finishing work. 6. The copper nut and the elastic wedge are embedded in the joint, so that the two are closely integrated into one body, and there is no loosening or damage caused by the vibration caused by the water flow. 7. The valve body is coated with powder epoxy resin, which can prevent corrosion and rust of the valve body and can be used in sewage system. 8. The inside of the valve body is coated with non-toxic epoxy resin, and the inner and outer surfaces of the valve are completely covered with rubber, which will not rust or corrode, and can be used for raw drinking.

The much-anticipated Christmas is coming! This year, in order to let our business partners receive gifts before Christmas, DERVOS started prepping a month in advance! First, the selection of gifts. Actually, our sales often pay attention to the preferences and needs of their respective customers during the daily communication, so they can also choose gifts that meet customers' wishes as well as are full of traditional Chinese characteristics. Second, the packaging of gifts. In order to let you receive the most exquisite gifts, keep the joy of opening presents, each gift is beautifully packaged. In addition, there are handwritten greeting cards for each sale. Finally, the delivery of gifts. In order to prevent Christmas gifts from being impacted during transportation, DERVOS wrapped several layers of shockproof pearl cotton and buffer film on the outermost layer of Christmas gifts, so that our partners can receive a perfect box of gifts. DERVOS looks forward to seeing your smiling faces when you receive the gift. As of today, DERVOS has received many thanks and praise from friends! And we hope that DERVOS's gifts can accompany you through a wonderful Christmas. DERVOS wishes you and your loved ones on the occasion of Merry Christmas and a prosperous New Year in advance!

Bellow seals globe valve is a valve used to control the flow rate. Bellow seals globe valve adopts a bellow structure inside, and the lower end of the stainless steel bellow is welded on the valve stem to prevent the process fluid from corroding the valve stem. It eliminates the disadvantages of fast aging and easy leakage of ordinary valve stem packing seals, not only improves the energy efficiency, increases the safety of production equipment, reduces maintenance costs and frequent maintenance, but also provides a clean and safe working environment. It is suitable for pipelines of steam, flammable, explosive, heat transfer oil, high-purity, toxic and other media. Advantages: 1. Double sealing design (bellow + packing), if the bellow fails, the stem packing will also avoid leakage; 2. It is not easy to leak and meets international sealing standards; 3. There is no fluid loss, reducing energy loss and improving the safety of factory equipment; 4. Good anti-friction performance, long service life, reduced maintenance times, and reduced operating costs; 5. Strong and durable bellow seals design ensures zero leakage of the valve stem and provides maintenance-free conditions; 6. Intuitive indication of valve stem lifting position.

OSEA (Offshore Southeast Asia) is one of the largest Oil and Gas Events in Asia. OSEA returns in 2022 as an in-person event at the forefront of offshore oil, gas and emerging zero carbon energy sources. OSEA returned from 15 -17 November 2022 to pioneer a global shift in the energy industry. Our agent in Singapore participated in OSEA, and brought our VALVES to meet you! Our products in this exhibition include Bellow Seals Globe Valve, Cryogenic Sleeve Type Plug Valve and etc. Although only some of our products are displayed on the booth, audiences can learn about our rich product categories and factory through videos. Apart from the products exhibited, our products also cover Ball Valve, Gate Valve, Butterfly Valve, Check Valve, etc. We still maintain the heart of providing you with quality services and excellent products.