Knife Gate Valve

Knife Gate Valve Introduction

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 Knife Gate Valve Knife Gate Valve Knife Gate Valve


Rubber spool is produced with ” liquid phase nanometer compounding, normal temperature high-frequency curving”. Wear-resistant index id over 128% and its service life is 2-4 times longer than ordinary valves under the same working conditions. Xinhai wear – resistant rubber as liners of knife gate valve owns high resilience up to 86% and high sealing performance, no leakage Simple structure, convenient operation and maintenance No pressure lose

【Product Structure】

Structure-Clamp Gapless Valve

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Xinhai knife gate valve is mainly manual gate valve. Xinhai can also manufacture electric and pneumatic gate valve according to the needing of customers. The three kinds of gate valve can be carried out by remote control. In addition, the valve body is fitted with oil nipple to reduce the friction on gate and force moment of opening and closing of the valve. Spool made of wear – resistant rubber, small specific gravity, easier to replace

【Technical Parameters】

Performance of Xinhai motorized knife gate valve of series XWXZF/D-1.6

DN Pressure(Mpa) Motor of electric device Max torque (N•m) Motor Power(KW)
50 1.6 DZ10 100 0.25
65 1.6 DZ10 100 0.25
80 1.6 DZ10 100 0.25
100 1.6 DZ10 200 0.37
125 1.6 DZ10 200 0.37

XWXZF/D-1.6 Structure and dimension of Xinhai motorized knife gate valve

DN A D D1 D2 n-Φd B H H1
50 60 165 125 94 4-Φ18 180 546 90
65 60 185 145 112 4-Φ18 200 565 100
80 64 200 160 126 8-Φ18 220 580 110
100 64 220 180 150 8-Φ18 240 610 120
125 70 250 210 178 8-Φ18 270 640 135

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Company Culture

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Our Goals:

"Providing comprehensive mining development solutions, manufacturing mining machinery products with advanced technology, environmental protection, high efficiency and energy saving technology, and achieving maximization value for global mining customers."

Our Vission:

"Based in China, Xinhai wants to be one of world top developers, manufacturers, service providers and engineering contractors of mining technology and mining machinery."


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1,200t/d mineral processing plant of Bulsowa in Tanzania was an EPC project contracted by Xinhai, Xinhai provided thickening, leaching, desorption.

Species : gold ore

Capacity: 1200t/d

Process : adopts all-slime cyanidation process with thickening, leaching and desorption electrolysis process, dry tailings stacking