Tonga's vast sea area is rich in fishery resources, mainly tuna exports. In recent years, due to climate reasons and overfishing, fish resources have been decreasing, and transportation costs have been increasing. The decline in exports of tuna and other major fishery products has been lower than expected. The output value of Tonga's fishery in recent years has been 6 million yuan, with Panga accounting for about 4% of Tonga's GDP.Detailed Tonga regional common sense Oceania Waterproof casing rest assured enterprises Zhongyuan valve fittings Tonga overseas product service station editors have been sorted out: The output value of Tonga's fishery decreased by 1% year-on-year in fiscal year 2013/14, Tonga reduced the import tariff of fishery related products by 30% in fiscal year 2014/15, and Tonga's financial subsidies promote the development of Tonga's fishery. The expected output value increased by 2% year-on-year.Waterproof casing The manufacturer Zhongyuan valve fittings is located in Asia, bordering the Pacific Ocean, and the China-EU train runs through the country. Zhongyuan valve fittings has a service team for Oceania Waterproof casing customers, which can provide reliable Waterproof casing Heat solutions for Tonga Waterproof casing customers!

      Negative pressure resistance rubber joint

      Negative pressure resistance rubber joint products are mainly: Single ball rubber joint, double ball flexible rubber joint, clamp type rubber joint, acid and alkali resistance rubber joint, high temperature resistance rubber joint, high pressure resistance rubber joint, corrosion resistance rubber joint, innovation of negative...

      We put your success first.... All along. Hello, Tonga customer friend, thank you very much for clicking to enter the Zhongyuan valve fittings official enterprise website! Strict Negative pressure resistance rubber joint quality stability, reflecting the reassuring "Made in China", is Zhongyuan valve fittings has never stopped pursuing for many years! If you want to know more about the actual application of [Negative pressure resistance rubber joint] products, please browse the following Negative pressure resistance rubber joint product information in detail or call the Tonga Expansion joint Negative pressure resistance rubber joint rest assured enterprises--Zhongyuan valve fittings [Negative pressure resistance rubber joint] technical consultation phone to learn more new information!
       

      Product introduction:
      Negative pressure resistance rubber joint products are mainly:  Single ball rubber joint, double ball flexible rubber joint, clamp type rubber joint, acid and alkali resistance rubber joint, high temperature resistance rubber joint, high pressure resistance rubber joint, corrosion resistance rubber joint, innovation of negative pressure resistance rubber joint is mainly used in water pump import and export and vacuum pipe and tailings pipe, negative pressure resistance rubber joint in the structure of the same rubber joint products have a great difference,Compared with the general rubber joint products, the rubber joint of our company has a booster protection device to ensure that the rubber joint will not suck flat when it is under negative pressure. The booster ring is generally made of steel or stainless steel. We power the future through advanced manufacturing technology, ZhongYuan's customer service personnel reminds us of the key points of product knowledge in the field of aviation application: Our factory uses the stainless steel booster ring to play an important role in the rubber joint, which is used in the seawater and other water cycle engineering group.

      [Product alias]: flexible rubber joint, rubber soft connection, shock absorber, flange soft connection, rubber flexible joint, rubber pipe joint, etc

      [Product specification]: [DN32mm-DN4000mm]

      [Product color]: black, see the product display picture for real color.

      [Scope of application]: [acid, alkali, corrosion, oil, hot water, etc.]

      [Product certification]: International ISO9001-2008

      [Product material]: environmental protection type excellent synthetic rubber; Environmental protection products, do not contain lead and other toxins.

      [Damping grade]: A, excellent damping

      [Working temperature]: -40 degrees to 80 degrees (can also process high temperature resistant rubber joints)


      Product feature:

      Our company has developed a new type of negative pressure resistant rubber joint in the rubber layer of the rubber joint pressurized, flexible steel plate, so that when the positive pressure rubber joint expansion, when the negative pressure rubber joint shrinkage sucking flat steel plate can well block the deformation of the rubber joint, to ensure that the shape meets the design requirements, this structure is suitable for use in corrosive media, Precision and quality are in our DNA, Zhongyuan valve fittings Reminder Tonga Friends can refer to these knowledge: The pressure ring part will not directly contact the medium to ensure the use of integrity, generally used in sewage treatment, waste water treatment, precious metal recovery.


      Product advantage:

      Negative pressure resistance rubber joint in the operation process of negative pressure resistance, high requirements, simple rubber is not resistant to negative pressure, for example, the pipe diameter is 0.1kg of negative pressure, the rubber tube body will suck flat, with the pipe external pressure is completely different, so, negative pressure inner diameter needs to increase negative pressure diversion tube, simply put, Negative pressure duct is to increase a carbon steel pipe in the inner diameter of the rubber shock absorber throat, but the inner diameter of the joint is smaller than the original inner diameter, with the negative pressure duct, the rubber shock absorber throat will not be sucked flat, so the vibration isolation of the original shock absorber throat, expansion effect will not be affected, only affected is the inner diameter of the joint slightly smaller.


      Negative pressure resistance rubber joint application field:

      The negative pressure resistant rubber joint has many superior performance in the use process, so it can be widely used in chemical industry, construction, water supply, drainage, petroleum, light and heavy industry, freezing, health, water heating, fire protection, electric power and other basic engineering.


      Parts material

      No. Part Material
      1 Body Natural rubber  (NR)、Neoprene rubber  (CR)、Butyl rubber  (IIR)、Nitrile butadiene rubber  (NBR)
      Fluorine rubber  (FKM)、Epdm rubber  (EPDM)
      2 Inner & Outer Rubber Natural rubber(NR) Neoprene rubber(CR)Butyl rubber(IIR) Nitrile butadiene rubber(NBR)
      Fluorine rubber(FKM)Epdm rubber(EPDM)Teflon(PTFE)
      3 Body Carcass Nylon cord fabric
      4 Reinforcing Ring Multi-strand coppering steel wire
      5 Flange Cast and forged carbon steel(Q235)、Stainless steel(201、304、316、321)、Plastic(CPVC、PVDF、PPH、UPVC、RPP)

      Technical parameter

      Item | Medol KXT-1 KXT-2 KXT-3 A. If media is oil, acid or alkali.
      B. If special requirements for working temperature
      C. If OEM orders with drawings or samples
      D. Please Inform us about above when ordering
      MpaWoring pressure 1.0(10) 1.6(16) 2.5(25)
      Mpa Burst Pressure 2.0(20) 3.0(30) 4.5(45)
      Kpa Vacuum 53.3(400) 86.7(650) 100(750)
      Applicable Temperature -20℃~+115℃(-30℃~+250℃ under special conditions)-20℃~+115℃(-30℃~+250℃ under special conditions)
      Applicable Medium Air, compressed air, water, sea water, oil, acid, alkali, etc.
      Note: the materials of main parts are the same with those of KXT type

      Main date

      DN
      Nominal Diameter
      (mm)
      Length
      Lmm
      Axial displacement
      mm
      Haorizontal isplacement
      mm
      Angular deflection
      (a1+a2)°
      mm

      inch

      Extension Compression
      32 1.25 95 6 9 9 15
      40 1.5 95 6 10 9 15
      50 2 105 7 10 10 15
      65 2.5 115 7 13 11 15
      80 3 135 8 15 12 15
      100 4 150 10 19 13 15
      125 5 165 12 19 13 15
      150 6 180 12 20 14 15
      200 8 210 16 25 22 15
      250 10 230 16 25 22 15
      300 12 245 16 25 22 15
      350 14 255 16 25 22 15
      400 16 255 16 25 22 15
      450 18 255 16 25 22 15
      500 20 255 16 25 22 15
      600 24 260 16 25 22 15
      700 28 260 16 25 22 15
      800 32 260 16 25 22 15
      900 36 260 16 25 22 15
      1000 40 260 18 26 24 15
      1200 48 260 18 26 24 15
      1400 56 350 20 28 26 15
      1600 64 350 25 35 30 10
      1800 72 350 25 35 30 10
      2000 80 350 25 35 30 10
      2200 88 400 25 35 30 10
      2400 96 400 25 35 30 10
      2600 104 400 25 35 30 10
      2800 112 400 25 35 30 10
      3000 120 400 25 35 30 10
      Note: 1, special requirements can be made according to user drawings, flange standard using GB/T9115.1-2000, optional (GB, JB, HG, CB, ANSI, DIN, BSEN, NF, EN, JIS, ISO, etc.) flange standard production. Rubber ball can be made of natural rubber, EPDM rubber, neoprene rubber, butyl rubber, nitrile rubber, fluorine rubber and so on.
      2, suspended water supply using DN200 or more products, the pipeline needs to have a fixed support or fixed bracket, otherwise the product should be installed anti-pull-out device.
      3. When users use rubber joints, the corresponding flange should be the valve flange or conform to GB/T9115.1-2000 flange.

      Innovative pipeline product services:

      Professional manufacturing, professional service, innovation pipeline for you to create more value!

      Continuous improvement of service quality, excellence, "sincere service" is the innovation pipeline has been firmly believed in the goal.  Innovation pipeline in strict accordance with ISO9001-2000 quality system certification requirements, strict quality control, responsibility to people, to ensure the healthy operation of production, sales, service.   Zhongyuan valve fittings Reminder Tonga Friends can refer to these knowledge: Strengthen communication with users, dedication to provide our customers with excellent products, perfect and beautiful service, innovation pipeline hereby make the following commitment:


      Reasons for choosing innovative pipelines:

      The reason why many Negative pressure resistance rubber joint customers choose Innovative water supply equipment is that the key word "win-win culture" Construction of chemical and municipal pipelines in power plants Negative pressure resistance rubber joint service provider - Innovative water supply equipment advocates "win-win cooperation", which means to achieve win-win both internally and externally. Internally, it is Innovative water supply equipment employees themselves. Key points of product knowledge in the field of aviation: The company creates a good atmosphere, ambitious goals, creates a comfortable Innovative water supply equipment cultural environment, employees achieve their own career goals and growth, and Innovative water supply equipment achieves their interests goals, which is a virtuous circle of "win-win cooperation". Providing customer-oriented solutions is Zhongyuan valve fittings's strength, Zhongyuan valve fittings reminds Tonga friends that this information can help buy good Chinese products: Externally, Innovative water supply equipment creates good Construction of chemical and municipal pipelines in power plants Negative pressure resistance rubber joint products and services, and customers gain recognition and provide good service experience for Construction of chemical and municipal pipelines in power plants customers, which is also "win-win", and the sense of trust is further strengthened. This is Innovative water supply equipment complementary ecological win-win.


      Product standards:

      Steel telescopic products are designed, manufactured and accepted in strict accordance with Chinese GB and HG standards and American API standards. Easy decisions come from knowledge accumulation, Zhongyuan valve fittings reminds Tonga friends to understand this information: The hardness of the sealing surface shall meet the requirements stipulated by the state, and the width shall exceed the national standards.


      Instructions for purchasing innovative pipeline products:

      1、 Product Material Description: Due to the possibility of scratches or dirt on the surface of materials during transportation or distribution, and the possibility of surface oxidation or insufficient aesthetics during storage, the images and physical objects may also differ. We always offer the right solution, even if it's not clear at first, Key product knowledge points in the field of aviation that Tonga friends need to understand: Our manufacturer will definitely make our products more aesthetically pleasing, using high-quality raw materials for production. Our manufacturer promises that our products are of high quality and affordable, and are entirely a customer's choice. If you have other models or specifications of products, you can contact our customer service online or consult us when purchasing

      2. Shipping instructions: 

      1. Due to the unique nature of the materials, all materials are shipped after payment by the customer, and are specially customized products for the customer. Once sold, there are no returns or exchanges for non material or quality issues! Please understand. 

      2. Please provide a clear description of the specific specifications, nominal diameter, working pressure, medium to be conveyed, quantity, and required performance of the required product before shopping. The main reasons for doing so are: 

      1) Ensure that the product prices quoted by the manufacturer are correct and accurate; 

      2) For customers, it provides protection for their own interests and prevents them from misquoting product prices, causing economic losses for both parties and causing unpleasantness for everyone; 

      3) Once the customer has made a decision and both parties sign a contract, the products produced by the manufacturer can meet the actual needs of the customer. 

      3. If the customer did not provide a clear description, the seller will not assume any responsibility in the event of a dispute! Please understand!


      Pre-sale services:

      Product introduction, technical exchange, non-standard product design, troubleshooting.

      In sales service:

      1. Maintain a trustworthy contract, ensure timely supply, and keep in touch with customers at all times. 

      2. For special or complex products, our factory arranges technical personnel to provide training and guidance to users on product use, troubleshooting, adjustment, and maintenance.

      After-sale service:

      1. The warranty period for innovative pipeline products is 12 months from the factory, and the "three guarantees" service (product quality issues) is implemented. 

      2. Our factory regularly organizes technical and inspection personnel to visit our products during use, seeking feedback from users on product quality, usage status, improvement opinions, and other aspects, in order to further improve product quality. 

      3.Quickly respond to customer complaints about product quality issues 

      4. For after-sales service, users are required to fill out the quality feedback form after the service and provide appraisal opinions, in order to jointly improve the product and service quality of the innovation pipeline.


      Order Information:

      1. The customer has special requirements for the product and must provide the following instructions in the order contract:

      1) Structure length; 

      2) Connection form; 

      3) , nominal diameter, full diameter, reduced diameter, pipeline size; 

      4) Medium used and temperature and pressure range; 

      5) Our factory can customize and design special products according to customer specific requirements for experiments, inspection standards, and other requirements. 

      2. Our company can customize and design special products according to customer specific requirements. 

      3. If the customer provides the determined product type and model, the customer should correctly explain the meaning and requirements of the model, and sign the contract on the condition of mutual understanding between the supply and demand parties. 

      Zhongyuan valve fittings The reason for winning the praise of Negative pressure resistance rubber joint customers, and the key words "integrity culture" aviation Negative pressure resistance rubber joint service providers -- Zhongyuan valve fittings believe: cultural construction condenses the hearts of the people, casting the stable development of the team! Zhongyuan valve fittings, which has been focusing on the aviation field for many years and has been crafting Negative pressure resistance rubber joint products for many years, has always attached great importance to the impact of cultural concepts on enterprises! Honesty is the foundation of establishing a career and a person. People can not establish without faith, and Zhongyuan valve fittings is the same. Zhongyuan valve fittings takes "credit based, wealth life" as the source of value, which not only shows the importance of integrity, but also shows that this is the foundation of enterprise development. Only with credit can promote Zhongyuan valve fittings Negative pressure resistance rubber joint product upgrading and better serve aviation customers. "Honesty and trustworthiness" is an important professional quality of aviation industry practitioners.


      Good products from China, serving the world!Brand achievement is not the pursuit of ZhongYuan people. How to make ZhongYuan [Negative pressure resistance rubber joint] industry recommendation create value for Tonga people is the direction ZhongYuan is committed to pursuing!


      Friends from Negative pressure resistance rubber joint can learn about ZhongYuan's customer feedback and product questions and answers:
      Argentina old customers who have cooperated with Negative pressure resistance rubber joint
      The contract signed with ZhongYuan is relatively smooth in the implementation process, and ZhongYuan water supply equipment is relatively good in the Construction of chemical and municipal pipelines in power plants industry.
      Qatar old customers who have cooperated with Negative pressure resistance rubber joint
      The quality is stable and very easy to use. I am very satisfied with the cooperation with ZhongYuan water supply equipment this time.
      Negative pressure resistance rubber joint customer of Macedonia
      The cooperation with ZhongYuan is generally OK. I hope the manufacturer can strengthen after-sales service in the future!
      Lithuania old customers who have cooperated with Negative pressure resistance rubber joint
      Negative pressure resistance rubber joint Very satisfied, very fast, ha ha, happy cooperation!

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