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With advanced technologies and facilities, strict high quality control, reasonable value, exceptional company and close co-operation with prospects, we’ve been devoted to offering the very best worth for our consumers for C509, China Gate Valve, Immediate and specialist after-sale service supplied by our consultant group has happy our buyers. Detailed Info and parameters from the merchandise will probably be sent to you for any thorough acknowledge. Free samples may be delivered and company check out to our corporation. n Morocco for negotiation is constantly welcome. Hope to get inquiries type you and construct a long-term co-operation partnership.
Usually there are trapezoidal threads on the lifting rod. Through the nut at the top of the valve and the guide groove on the valve body, the rotary motion is changed into linear motion, that is to say, the operating torque is changed into the operating thrust. When opening the valve, when the gate lifting height is equal to 1:1 times the valve diameter, the flow passage is completely open, but when running, this position can not be monitored. In practical use, the vertex of the valve stem is used as the sign, that is, the position of the valve stem that is not moving is used as its full open position. In order to consider the locking phenomenon of temperature change, the valve is usually opened to the vertex position and reversed to 1/2-1 turn as the position of the fully open valve. Therefore, the full open position of the valve is determined by the position of the gate (i.e. stroke).
Product characteristics:
1. Flat-bottomed seat, no accumulation of dirt, make the seal more reliable.
2. The valve disc is encapsulated with NBR as a whole. The inner parts of the valve are made of corrosion-resistant stainless steel and copper alloy, which can be used for sewage system to adapt to harsh working conditions.
3. Small size, light weight, easy to install and maintain
4. The valve stem is sealed with three O-rings, which greatly reduces the friction resistance of the switch and makes the switch light and water-tight.
Major Component Materials
name |
Texture of material |
valve body |
Ductile iron |
Valve plate |
Ethylene propylene rubber |
Nut |
brass |
Bolt |
SS201 |
Bonnet |
Ductile iron |
Opposite open loop |
brass |
Type O circle |
Ethylene propylene rubber |
Stem |