Butterfly valve of the various classification 1. Classified by structure (1) Central sealing butterfly valve (2) Single eccentric sealing coal valve (3) Double eccentric sealing butterfly valve (4) Three eccentric sealing valve (2) According to the sealing surface material classification (1) soft sealing butterfly valve. 1) The sealing pair is made of non-metallic soft material to non-metallic soft material. 2) The sealing pair is made of metal hard material to non-metal soft material. (2) metal seal butterfly valve. The sealing pair is made of metal hard material to metal hard material. 3. Classified by seal (1) Forced seal butterfly valve 1) Elastomeric seal butterfly valve. Sealing pressure ratio by the valve is closed when the valve plate squeeze valve seat, valve seat or valve plate flexibility 2) plus torque butterfly valve. Sealing than the pressure applied by the valve shaft torque (2) pressure sealing butterfly valve. Sealing than the pressure from the valve seat or valve plate elastic seal components generated pressure (3) automatic sealing butterfly valve. Sealing pressure is automatically generated by the media pressure. 4. Classified by working pressure (1) Vacuum butterfly valve. Work pressure is lower than the standard reactor atmosphere calendar butterfly valve. (2) low pressure butterfly valve. Butterfly valve with nominal pressure PN <1.6MPa. (3) medium pressure butterfly valve. Nominal pressure PN 2.5 - 6.4MPa butterfly valve. (4) high-pressure butterfly valve. Nominal pressure PN 10.0 - 80.0MPa butterfly valve. (5) Ultra-high pressure butterfly valve. Nominal pressure PN> 100MPa butterfly valve. 5. Classified by working temperature (1) High temperature butterfly valve. T> 450C butterfly valve (2) temperature valve. Butterfly valve 120C <t <450C (3) room temperature butterfly valve. A 40C <t <; 120C butterfly valve (4) low temperature butterfly valve. A 100 <t <a 40C butterfly valve (E) ultra-low temperature butterfly valve. t <a 100C butterfly valve 6. According to the connection classification (1) on the butterfly valve. (2) Flanged butterfly valve. (3) Bellow butterfly valve. (4) welded butterfly valve.

Knitted Fringe Scarf

Knitted Fringe Scarf
This knitted fringed scarf is decorated with fashionable fringe elements at both ends. The unique design makes this scarf not dull and full of fashion. It can be tied around the neck and matched with a temperamental and versatile coat, which reduces age and is elegant.
In addition to making us look better in terms of styling, strong warmth is also one of its functions. It can protect our necks from cold wind in winter.

Yacheng Knitting Co., Ltd. can mass produce customized high-quality knitted garments, including sweaters, Custom Knit Sweaters, Knitted Pants, Knitted Skirt , Knitted Shoes, Knitted Scarves and Knitting Blanket. If you need to order knitted products, please contact us.

Knitted Fringe Scarf

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DongGuan Yacheng Knitting Co., Ltd , https://www.oemknittingycs.com