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Address: No. 432, Zhenhai Middle Road, Luotuo Street, ZhenhaiDistrict, Ningbo City, Zhejiang China
Tel:+86-574-87527771
Phone:+86-18153328969
Email: jenny@seal-china.com
Fax:+86-574-87527773
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Latest News

What are PTFE and ePTFE?2020/04/23
PTFE can be manufactured into many forms. Teflon® is a type of PTFE which comes in a paste and was once commonly used to correct vocal cord defects. Other forms of PTFE include strands, sheets and tubes. ePTFE is a woven form of PTFE that creates a mesh-like structure. It is flexible, soft and strong. ePTFE implants are porous so they allow the body’s tissue to network and grow into it. However, even though the implant is permanent, it can be removed if necessary. Gore-Tex® and SoftForm® are U.S. Food and Drug Administration (FDA) approved ePTFE implants for facial augmentation. Gore-Tex S.A.M. (subcutaneous augmentation material) is a new solid Gore-Tex implant that is available as solid tubes, preformed shapes and patches. It is also possible to carve the material into customised shapes to improve the outcome of nasal and chin reconstructions or cosmetic augmentations. PTFE and ePTFE implants are not as hard as silicone implants.
Installing Grafoil Crinkle Gasket Tape2017/10/31
1. Brush off any rust or foreign particles. Wipe flange surface thoroughly with a rag soaked in acetone or other suitable solvent to remove grease or oil. 2. Insert fingernail between the paper backing strip and the tape and strip the paper back three to six inches. Draw a reference line in flange and press squared off end of tape against it. 3. Now, start laying the tape along the face of the flange, peeling the paper backing as you go. To prevent the adhesive surfaces of the tape from doubling back on themselves and sticking together, strip away only a few inches of paper at a time.
How to Cut Gasket material?2017/10/30
Clean radius and straight cuts are achievable on gasket material with the proper tooling. Thinner types of gasket material require nothing more than sharp blades and hollow gasket cutters. Gasket material over 1/4-inch thick require specialized mechanical tools to create the precision cuts necessary to seal a piece of equipment and is best left to professionals. Properly securing the gasket material and ensuring the tools used are in good condition will allow you to cut thinner gasket material efficiently and precisely.
Spiral wound gasket production process and equipment2017/10/31
In the present seal, metal spiral wound gasket with excellent elasticity, high temperature, high pressure,low temperature and other characteristics, has become a very wide range of applied seal. Especially suitable for uneven loading, relaxation and easy access together, cyclical changes in temperature and pressure of the occasion, is the main flange gasket. In the petrochemical pipelines, mechanicalseals,shipbuilding,metallurgy, aerospace and other industries widely.
Gasket Seating2017/10/30
There are two major factors to be considered with regard to gasket seating. The first is the gasket material itself. The ASME Unfired Pressure Vessel Code Section VIII, Division 1 defines minimum design seating stresses for variety of gasket materials.
Effecting a Seal2017/10/30
A seal is affected by compressing the gasket material and causing it to flow into the imperfections on the gasket seating surfaces so that intimate contact is made between the gasket and the gasket seating surfaces preventing the escape of the confined fluid. Basically there are four different methods that may be used either singly or in combination to achieve this unbroken barrier.

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