永远永远亚洲无码AⅤ|欧美国产日韩高清在线|欧美人与动牲交欧美精品|不卡一区二区三区在线视频|亚洲欧美一区二区三区蜜芽|最近2019年的中字文幕|国产激情久久久久影院老熟女|亚洲日韩欧美一区二区在线观看

永嘉渤工閥門有限公司
  英文版    中文版
Bohai Valve Co., Ltd. Yongjia
Contact: Mr. Wang
Phone 577 -57796661 / 057796662
Fax 577 -67367855
Phone: 13806833242
E-mail: 258193218@qq.com
Address: Industrial Zone Oubei Puxi
NEWS

Rapid installation of cast steel gate valves

更新時間:2018.07.20
Installation of cast steel gate valves also has certain skills:
1. Before installation, the parts inside the cast steel gate valve cavity and sealing cover shall be checked, and no dirt or sand particles shall be allowed to attach; 2. Bolts at all connection parts shall be uniformly tightened; 3. The packing part shall be compressed to ensure the sealing of the packing and the flexible opening of the gate; 4. Before installing the valve, the user must check the valve model, connect the size and pay attention to the flow direction of the medium to ensure the consistency with the valve requirements; 5. When installing the valve, the user must reserve the necessary space for valve drive; 6. The wiring of the driving device shall be carried out according to the circuit diagram; 7. Cast steel gate valves shall be maintained regularly and shall not collide or squeeze at will to avoid affecting the sealing.
The article comes from: www.bc5666.com
今天是
HOME ABOUT US NEWS PRODUCTS NETWORK ORDER <CONTACT US 中文

Copyright 2013 Bohai Valve Co., Ltd. Yongjia LUOTUO All Right Reserved. Address: Yongjia County, Wenzhou City, Zhejiang Province town of North ICP No.: ICP 12045727 No. -1