Copyright © 2017 All rights reserved 版权所有 ICP备案000000000号 网站建设：中企动力
Yuhuan Jutai Valve Co., Ltd was founded in 2006. It is located in Zhejiang Province’s Yuhuan, China’s valve city at coast of East China Sea. The establishment of the company occupies a land area of 4,500 m2 with build-up area of 9,600 m2. The company employs 120 people including over 20 professionals. Total turnover of the company in 2017 was RMB 70 million... [ MORE+ ]
The so-called pneumatic valve, specifically refers to the cylinder as an actuator, to compressed air as a source of power to achieve the valve drive, in order to achieve the switch for regulation. When the regulating pipe receives the control signal sent by the automatic control system, it will adjust the temperature, pressure, flow and other related parameters. In general, pneumatic valves have the characteristics of safe and reliable, rapid response and simple control. In the process of specific operation, the adjusting chamber will be input 0.02-0.10mpa signal pressure, the film will appear thrust, in the process of thrust plate moving down the spring will be compressed to achieve the valve stem, push rod and spool moving down, to achieve the purpose of valve regulation.
The product of each country of the world detects attestation mark to enumerate your home product to pass which a few
The CE mark is a security certification mark and is considered a passport for the manufacturer to open and enter the European market. CE stands for CONFORMITE EUROPEENNE. All products with the "CE" mark can be sold in the eu member states without meeting the requirements of each member state, thus realizing the free circulation of goods within the eu member states.
ROHS is the abbreviation of the Restriction of the use of certain hazardous substances inelectrical and electronic equipment. ROHS lists six hazardous substances in total, including: lead Pb, cadmium Cd, mercury Hg, hexavalent chromium Cr6+, PBDE and PBB. The eu began to implement ROHS on July 1, 2006. Electrical and electronic products that use or contain heavy metals, PBDE, PBB and other flame retardants are not allowed to enter the eu market. ROHS for all the production process and raw materials that may contain the above six kinds of harmful substances in electrical and electronics products, mainly including: white home appliance, such as refrigerators, washing machines, microwave ovens, air conditioners, vacuum cleaners, water heaters, etc., black appliances, such as audio and video products, DVD, CD, TV receiver, IT products, digital products, communication products, etc.; Power tools, power electronic toys, medical electrical equipment.
Remark: when the customer asks whether there is rohs, he should ask whether he wants the finished product rohs or the raw material rohs. Some factories cannot make the finished product rohs. The price with rohs is generally about 10%-20% higher than that of ordinary products.
UL is short for Underwriter Laboratories Inc. UL safety testing institute is one of the most authoritative safety testing and certification organizations in the United States. It is an independent, nonprofit, professional organization that tests for public safety. It USES scientific testing methods to study and determine whether all kinds of materials, devices, products, equipment, construction, etc. are harmful to life and property and the degree of harm; To determine, compile and publish relevant standards and data that can help reduce and prevent loss of life and property, and to carry out fact-finding research. In short, it is mainly engaged in product safety certification and operating safety certificate business, its ultimate purpose is to get a fairly safe level of goods for the market, and to make contributions to ensure the safety of human health and property. In terms of product safety certification as an effective means to eliminate technical barriers to international trade, UL also plays a positive role in promoting the development of international trade.
Remark: it is not mandatory for UL to enter the United States.
The Food and Drug Administration (FDA). FDA is one of the executive agencies set up by the us government in the department of health and human services (DHHS) and the department of public health (PHS). The FDA is responsible for ensuring the safety of food, cosmetics, medicines, biologics, medical devices and radiological products produced or imported in the United States. In the wake of September 11, there was a real need to improve security in the food supply. After congress passed the public health, safety and bioterrorism prevention and response act of 2002 last June, it allocated $500 million to authorize the FDA to write specific rules to implement the act. Under the rule, the FDA will assign a special registration number to each applicant, and foreign food exports to the United States must be notified to the U.S. food and drug administration 24 hours before arrival at a U.S. port, or they will be denied entry and detained at the port of entry.
To provide you with more information in a timely manner