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Jiangsu Yuyang mechanical equipment Co., Ltd.

Address: Louzhuang industrial area of Jiangyan District, Taizhou, Jiangsu

Contact: Mr. Chen

Mobile phone: 18952657999 13801420111

Tel: 052388800188

Fax: 052388865288

Zip code: 225506

Mailbox: jiangsuyuyang008@163.com

Web site: www.jsyyjx.com.cn

Shanghai Yuyang machinery and equipment Technology Co., Ltd.

Address: Shanghai city Hongkou District Zhoujiazui Road No. 991

Contact: manager Chen

Cell phone: 18601780966

Zip code: 200086

Tel: 02165875265

Web site: www.jsyyjx.com.cn


Performance introduction of anticorrosive plastic lining of tetrafluoroethylene lining valve

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Performance introduction of anticorrosive plastic lining of tetrafluoroethylene lining valve

Release date:2017-12-30 Author:www.jsyyjx.com.cn Click:

  In order to make PTFE lined valves both metal strength and corrosion resistance, the use of cast steel, stainless steel, cast iron body, the shell cavity is medium flow components with good corrosion resistant engineering plastics as lining material, the steel lining plastic molding process of advanced technology, according to the specifications of the valve size and the use of media can choose the thickness of the lining, the fluorine plastic 3~8mm (F46, F4, PFA, PVDF), polypropylene (PP), polyethylene (PE), olefin copolymer (PO) as lining materials, packing with PTFE as the sealing ring. Each valve passes through the electric spark test and the water pressure test. All kinds of plastic lined steel valve has the advantages of flexible opening and closing, reliable sealing performance, resistant to various kinds of acid and alkali corrosion resistance, long service life etc..

四氟衬里阀门

Tetrafluoroethylene lining valve lining plastic corrosion resistance performance introduction:

1, polyfluoroethylene propylene FEP (F46)

Applicable medium: any organic solvents or reagents, various concentrations of acids, alkalis, salts, alcohols, ketones and other solutions (except for reactions with fluorine elements at high temperature, molten alkali metals and three fluorinated chlorine), will not be corroded when contacting with other chemicals.  The actual working temperature are less than 150.

Features: F46 resin mechanical, electrical properties and chemical stability basically similar to PTFE, but the prominent advantages of high impact toughness, even if the specimen with notch also constantly washed, have excellent weathering and radiation, easy to process, in addition to the use of the temperature is lower than F4, other properties have maintained a good performance of F4 therefore, make it become instead of PTFE material.

2. Polytetrafluoroethylene PTFE (F4)

Applicable medium: any organic solvents or reagents, various concentrations of acids, alkalis, salts, alcohols, ketones and other solutions (except for reactions with fluorine elements at high temperature, molten alkali metals and three fluorinated chlorine), will not be corroded when contacting with other chemicals.  The actual working temperature are less than 180.

Characteristics: F4 resin has strong corrosion resistance and high temperature resistance due to the particularity of molecular chain structure, but Teflon is difficult to process. In the production process, the scrap rate is high, so the processing cost is higher than F46.

3, soluble polytetrafluoroethylene (PFA)

Applicable medium: any organic solvents or reagents, various concentrations of acids, alkalis, salts, alcohols, ketones and other solutions (except for reactions with fluorine elements at high temperature, molten alkali metals and three fluorinated chlorine), will not be corroded when contacting with other chemicals.  The actual working temperature are less than 180.

Characteristics: PFA resin to overcome the difficulties of polytetrafluoroethylene processing and molding difficulties, and the development of a new variety, completely maintained the excellent performance of F4. Good mechanical and electrical insulation properties, the greatest advantage is easy processing and molding, making it a substitute for polytetrafluoroethylene.

4. Reinforced polypropylene (FRPP)

Applicable medium: water solution of inorganic salts, inorganic acids, dilute or concentrated solutions of alkaloids. Working temperature are less than 100.

Features: one of the lightest plastics. Its yield strength, tensile strength and compressive strength are all better than those of polyethylene. It has outstanding rigidity, heat resistance and easy molding. After the modification, the impact and the fluidity are all improved.

5. Polyolefin (PO)

Suitable medium: some organic solvents or reagents, thinner acids, alkali, salt and other solutions. The actual working temperature are less than 100. PO has good corrosion resistance and easy processing properties, widely used in anti-corrosion equipment for all kinds of rotational molding, also for PTFE lined valves.

Users can choose different lining materials according to the working conditions and temperature.

  



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