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日本六九视频tv 免费

 
日本六九视频tv 免费
 
久久精彩在线视频6说明:

日本六九视频tv 免费

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• Design comply to EN1171 / EN1074
• Face to face lengths are to EN558-1, DIN3202-F4/F5, BS5163, AWWA C515
• Flanges are drilled to EN 1092-2
• Pressure Rate: PN10/16
• Test: Body test 1.5 x PN, Seal test 1.1 x PN
• Coating: Fusion bonded epoxy coating WRAS Approved
• Medium: Neutral water, Drinking water, Sewage
• Temperature Range: 0℃ - 80℃

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日本六九视频tv 免费 

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• Clockwise closing (CWC) as standard
• Operation: Handwheel, Square cap, Gearbox, Electric actuator
• 100% water tightness
• Completely free and full bore, self clearning & low pressure loss.
• Threads rolled in a separate cold pressing process to enhance strength, Standard material AISI-420 (X20C13)
• Rolled threads ensure smooth thread edges and low operating torques
• Bonnet bolts are in Galvanized carbon steel (other material upon request), sealed with hot melt to prevent corrosion.
• O-ring bonnet gasket wraps each bolt to prevent corrosion
• Wedge: Ductile iron fully encapsulated as standard by EPDM. Linear sealing design provides better sealing & lower closing torque.
• Wiper ring - prevent impurities from entering the stem and to protect o-rings
• The watertightness for the spindle is obtained with three o-rings stem seals. Two o-rings to reduce friction and prevent wear and tear,
online replaceable under full pressure with valve fully opened; Third o-ring protects upper stem from impurities entering from the water way
• Coating - Electrostatically applied fusion bonded epoxy coating inside and outside for excellent corrosion resistance. Standard color similar to RAL 5005, other colors upon request.
• Designed and built to widely recognized international standards.
• 100% testing before packing and delivery

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日本六九视频tv 免费

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