Suzhou Xinsen Precision Casting Co.,Ltd
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    Add: No.238, Qiushe Road, Qiushe Industrial Park, Tongli Town, Wujiang District, Suzhou City, Jiangsu, 215200, P.R.China

    Tel: 86-512-63375886-608

    86-13732656777

    Fax: 86-512-63370558

    QQ: 502082393

    Email: szxsjm@sohu.com

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What are the effects of the valve cover?

Straight or angle body, it is under pressure at one end of the valve body components. Bonnet normally provides a way to install the actuator on the valve body, stuffing and inclusion. Usually ball valves and butterfly valves the rotary valves was 90 ° c no cover, filler included in the body of the extension, or packing is bolted on the valve body between the valve cover and an independent.


Screw the valve body and valve cover bolts be compressed flat gasket to seal between the valve body and valve are covered and the joints between, compresses the cage on top of spiral wound gaskets will seat ring following compress flat gasket to provide a seat ring and the seal between the valve body. Bonnet also provides support for cage, further to the spool with the provision in this guide, make sure spool right on the connecting rods and filler work.


Need cleaning with the process fluid the valve body and bonnet. In this case, the holes can be used for cleaning the connection port.


The bonnet opening is often used to detect the first filler or a defective bellows seal leakage.


Contact Us
Address: No.238, Qiushe Road, Qiushe Industrial Park, Tongli Town, Wujiang District, Suzhou City, Jiangsu, 215200, P.R.China
Tel: +86-512-633758+86-608
 Fax:86-512-63370558
 E-mail:szxsjm@sohu.com
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