Recently, Zhejiang Ni Sen Valve Co., Ltd. butterfly valve products successfully passed the special equipment manufacturing license that TS certification (A2 <1>, B1, B2 level). The certification refers to the State Administration of Quality Supervision, Inspection and Quarantine supervision of special units of production (including the design, manufacture, installation, alteration, maintenance and other projects), the use of inspection and testing related units to supervise and inspect the qualified units to give business license, Grant management certification using the TS certification mark. Through this certification, enterprises can enhance their own corporate image, improve the standardization of production and the institutionalization of management, break the technical barriers caused by technology (valves, pumps) or human factors, meet the needs of customers and products, and effectively enhance the market competitiveness . In order to coordinate the work objectives and progress of all departments, work smoothly and improve the quality of work and work efficiency, the company developed "Production Management Workflow" in accordance with the relevant procedures of TS Certification and started implementation earlier this year. This measure improves the production capacity and operation efficiency, stabilizes the product quality, and the manager can grasp the operation status of the management system in time and know the customer feedback information about the product. Ni Sen has always attached importance to enterprise standardization. On December 25, 2012, the company issued the Q / BNS 05-2012 "Bidirectional Metal All-metal Sealing Butterfly Valve" corporate standard and started its implementation on January 20, 2013. Due to our meticulous implementation of quality management documents, our quality management system has been improving and improving day by day, and product quality has been steadily improving. Due to product technology innovation, quality assurance and integrity of the services, I Division by the majority of users trust and won a vast market. "Nice Sen" brand valves are well-known in the industry and possess high technology content. They have won seven utility model patent certificates such as bi-directional pressure-hard sealing butterfly valve and all-metal titanium alloy hard-sealing butterfly valve as well as ball valves, bidirectional pressure (oval) Sealing butterfly valve two national invention patents. Today's valve counterparts fierce competition, but with the national energy industry and the development of urban integration, the market demand for valves is still quite extensive, is constantly changing. In order to gain a foothold in this large market, we must continue to blaze new trails in addition to continuing to work along the path we have previously created. In the current situation to continue to maintain our leading valve products, we must accelerate the industrial restructuring and upgrading, from technological breakthroughs, new product development to promote and take the specialization, package, high-end new development. Development of high-tech products, increase investment in science and technology, improve product quality is one of the highlights of this year's Ni Sen company. We plan to hire senior experts and skilled technicians to introduce new technologies and techniques to improve the manufacturing level of valves, set up R & D and trial production teams of high and new products and organize relevant departments to attend trainings. We will strive to launch a series of high-tech products by the end of 2013. At the same time update the outdated equipment, the implementation of brand strategy, with high quality, strict requirements for each valve, customer satisfaction, excellent quality. To become bigger and stronger as a breakthrough, through the preparation of the market to achieve the optimal allocation of resources, promote transformation and upgrading, so as to achieve the user's dream to meet the needs of the market. Our company specializes in producing and selling all kinds of hard sealing butterfly valve, soft sealing butterfly valve, ventilating butterfly valve and non-standard butterfly valve. The main products are bidirectional metal hard sealing butterfly valve, high and medium pressure hard sealing butterfly valve, large diameter hard Sealing butterfly valve, titanium and titanium alloy butterfly valve and marine valve products. We produce the butterfly valve connection flange, clamp, welding, lugs and so on. Applicable temperature range is -196 ℃ to 600 ℃, nominal diameter from DN50 to DN3600, nominal pressure from 2.5bar to 100bar, American standard butterfly valve pressure rating from 150 pounds to 600 pounds. The main materials are carbon steel, low temperature steel, chrome molybdenum steel, chromium molybdenum vanadium steel, various austenitic stainless steel, duplex stainless steel, titanium alloy, as well as by the Group of new materials provided by the various special corrosion-resistant, high temperature steel, etc. . We produce the main implementation of the standard butterfly valve GB, Ministry of Machinery standards, the Ministry of Chemical Industry standards, American Standard, German standard, Japanese standard and other standards. First, all-metal two-way seal butterfly valve The valve is our plant technicians optimized design, with national patent high-performance two-way metal seal butterfly valve. Adopted the "oblique elliptical disc radial dynamic balance seal system" to reliably achieve the butterfly valve import and export two-way seal zero leakage, is truly a leading international high-tech new products. The product put into mass production, and created a good economic and social benefits, and as a national product into the country, a large number of domestic and foreign enterprises to use, welcomed by the vast number of old and new users, is worthy of your high trust of high quality products . (A) of the main features 1. Adopt a "radial dynamic balance seal system" containing the national patent, the valve inlet and outlet sides of the approximate balance of force, the valve opening torque is low, positive and negative sealing performance is reliable, has been widely used in Electricity, water supply, heating and other industries, praised by the majority of customers; 2. The use of three eccentric structure, that double butterfly valve on the basis of an increase of an eccentric angle. The eccentric application, the butterfly plate in the opening and closing process, no sliding friction with the valve seat, no card crowded, with more closed off the tight sealing function, eliminating the seal between the uneven load, greatly extended The valve life. When the valve is opened and closed, the sealing surface of the disc contacts or departs from each point of the 360-degree circumference instantaneously, and the opening and closing actions can be quickly and accurately realized. Three-eccentric structure of the hard seal butterfly valve does not produce plastic deformation under high pressure conditions, in the high temperature or low temperature conditions there is no stamping stress, welding stress, to solve the traditional butterfly valve seal design caused by unreasonable leakage, greatly improving the valve Sealing reliability. (B) the main technical indicators Design standards: GB / T, JB / T 8527-1997, API 609-2004 structure length: GB / T, ASME B16.10-2000 test and test: GB / T, API 598-2009 Suitable temperature: -196 ~ 800 ℃ Nominal diameter: DN100 ~ DN1400 Nominal pressure: PN2.5 ~ PN100 Suitable medium: water, steam, oil, etc. Transmission: worm gear, pneumatic, electric , Hydraulic, electro-hydraulic linkage, gas-liquid interaction. Second, titanium and titanium alloy butterfly valve With the rapid development of petroleum, chemical, marine engineering, electric power and other industries, titanium and titanium alloy valves have gained more and more attention because of their excellent corrosion resistance. Especially in the chlor-alkali engineering, nuclear power sea water cooling circulatory system and other fields, the application of titanium metal sealing butterfly valve is favored. Titanium and titanium alloy butterfly valve to solve the current multi-level three eccentric structure of the existing technical problems. Mainly used in petroleum, chemical, fertilizer, shipbuilding, chlor-alkali industry, paper making, desalination and other fields. (A) of the main features 1. The use of integral disc, streamlined design, disc strength, fluid resistance, flow capacity, sealing surface resistant to erosion, compact valve structure; 2. Light weight, with the specifications of the model titanium alloy butterfly valve The weight is about 50% of the carbon steel or stainless steel butterfly valve; 3. The contact parts with the medium are all titanium or titanium alloy materials, the valve has excellent corrosion resistance against strong oxidizing medium; 4. The triple eccentric structure and sealing surface hardening technology , The valve during the opening and closing process, the friction between the sealing surface of the disc and the valve seat, no card crowded, long service life of the valve; 5. The internal structure of a "radial balancing system", valve opening torque smaller; 6 The bracket connection size adopts ISO standard, which can be easily connected with a variety of pneumatic, electric, hydraulic, electro-hydraulic linkage devices to achieve automatic valve control. (B) the main technical indicators Design standards: GB / T, API 609-2004 structure length: GB / T, ASME B16.10-2009 inspection and testing: GB / T, API 598- 2009 Suitable temperature: -30 ~ 315 ℃ Nominal diameter: DN50 ~ DN1000 Nominal pressure: PN2.5 ~ PN100 Transmission: worm gear, pneumatic, electric, hydraulic, electro-hydraulic linkage, gas-liquid interaction. Third, the sea water butterfly valve is a seawater contains many salt electrolyte solution, and dissolved a certain amount of oxygen, most of the metal material in the sea there is electrochemical corrosion. Chloride ion content in seawater is very high, which increases the corrosion rate. At the same time, current and sand cause low frequency reciprocating stress and impact on metal components. In recent years, with the accelerated development of marine utilization, the massive construction of coastal nuclear power projects and the promotion of desalination industry, the application of seawater resistant butterfly valves has become more and more widespread. To this end, we have specially developed a seawater resistant butterfly valve that can be applied to industries such as marine industry and nuclear power seawater cooling. Ordinary sea water butterfly valve, in order to adapt to the corrosion of chloride ion in seawater, the valve body, butterfly plate and other accessories are usually made of duplex stainless steel, titanium alloy and aluminum bronze and other materials. The seawater butterfly valve made of the above materials has its own defects and can not fully meet the needs of seawater conditions. Such as titanium alloy butterfly valve, although all aspects of performance are superior, but titanium and titanium alloy melting technology is difficult, access to titanium alloy casting more difficult, difficult processing, and the price is very expensive. Such as the use of duplex stainless steel butterfly valve, can resist chloride ion corrosion, but poor erosion resistance, flow channels and sealing surface vulnerable to erosion erosion, resulting in leakage of butterfly valve sealing surface. (A) of the main features 1. Body, butterfly plate, pressure ring made of carbon steel material, which effectively reduces manufacturing costs, contact with the media spraying corrosion-resistant coating, can increase the valve resistance to sea water corrosion; 2. Valve The sleeve is made of duplex stainless steel, which effectively prevents seawater from corroding the shaft hole of the valve body. 3. Double-phase stainless steel is welded on the sealing surface of the valve seat to effectively improve the valve sealing reliability and prolong the service life of the valve. (B) the main technical indicators Design standards: GB / T, JB / T 8527-1997, API 609-2004 structure length: GB / T, ASME B16.10-2000 test and test: GB / T, API 598-2009 Applicable temperature: -29 ~ 150 ℃ Nominal diameter: DN100 ~ DN3600 Nominal pressure: PN2.5 ~ PN100 Suitable medium: sea water, etc. Transmission: worm gear, pneumatic, electric, hydraulic, electric Liquid linkage, gas-liquid interaction.
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