Product description

Adjusting Valve with PFA lined for flow control
Product Description
1. Pneumatic/electric lined single-seat control valve is the execution unit in automation instrument system; It consists of many spring film actuators/electric actuators and through-way fluorine-lined single-seat regulator. Installed on the medium pipeline and operated with other instrument to control parameters such as flow rate etc. Due to the wetted parts of valve are lined with fluorine plastic (PTFE, PFA, FEP), and the stem sealing adopts PTFE bellow and packing, it has better performance in corrosion resistance and sealing and its installation has better reliability. It's suitable for any corrosive medium except for "molten alkali metals and fluorine element". The lined control valves are widely used in petrochemical, electric power, metallurgy, pulp&paper and other industrial automation device.
2. Operating method: Electric, pneumatic, hydraulic
3. Lining material: FEP, PFA, GXPO etc.

Structure and Operation Principle
1. Pneumatic/electric fluorine-lined control valve is consists of lined control valve body and straight travel pneumatic spring diaphragm actuator or electric actuator.
2. Pneumatic/electric actuator is an important part of automatic control system. Pneumatic actuators (figure 1) have both direct and indirect action. When air pressure increases, the push rod stretch out the membrane room, it is called direct action. When air pressure increases, the push rod back into membrane room, it is called indirect action, together with valve body to constitute the air-to-close.
Figure 2 shows the working principle of positioned on electrical/pneumatic valve: When the pressure signal input into membrane room, generating pushing force to the diaphragm to compress the spring, making the push rod move to drive the stem, changing the flow area between the valve trim and seat, until the counteractive by spring keep balance with pushing force on diaphragm by signal pressure, so as to achieve the purpose of process parameters automatic adjustment.

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Product specifications

Company introduction

ZHEJIANG YOUFUMI VALVE CO., LTD.

Established in 1989, Youfumi (YFM) manufactures and supplies PTFE lined products for the chemical, oil, gas, and pharmaceutical and associated process industries. Nowadays YFM is one of the leading manufacturers and wholesaler of PTFE lined products in China.

YFM specializes in PTFE/PFA/FEP/ETFE/PO/PP lined Butterfly valves, Ball valve and Plug valve, and also supplies PTFE lined gate valve, globe valve, check valve, diaphragm valve and all kinds of PTFE lined piping, which are tested to the latest manufacturing specifications of American & International standards organizations such as ANSI/ASME/DIN/JIS.

With the advanced production technology and excellent performance, many products of YFM become an outstanding symbol of anti-corrosion products in the fierce market competition in the industry.

YFM earned excellence reputation as a major supplier of corrosion-resistant forged valves for chemical and got many honours from both domestic and overseas. As for quality guarantee, YFM has acquired the CE certification and ISO9001 International Quality System Certification.

We put the product quality in priority all the time, in order to provide our customers with high quality products at a great value. So quality is our commitment, while competitive price, timely delivery and service is our promise to our valued customers.

Till now our products have sold around worldwide including America, Europe, Southeast Asia, Middle East and Africa. We have developed very good relationship with distributors, end users of worldwide. We sincerely welcome you to visit our company and look forward to serving your critical project needs. Hope we can become one of the best partners in your work.

Please visit our contact page to send us your requirements. Alternatively, please choose an option from the menu on the left to find out more about our PTFE/PFA lined products and services.

Youfumi facts;
Established Year 1989
Business Location Wenzhou,Zhejiang,China
Sales Volume Above US$100 Million
No. of Staffs 101 - 500 People
Company Certification GMC, ISO9001:2008, CELAB, TS, CE
Product Range PTFE Lining Butterfly Valve, Ball Valve, Globe Valve, Check Valve, Diaphragm Valve, Gate Valve, Pipes and Fitting.

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