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As one of the china ball valve manufacturers, ZECO always adhere to exceed customer expectations, to provide customers with more international standard valve services and products as the ultimate goal.
Description of Manual Ball Valve:
ZECO manual ball valve is mainly used to cut off, distribute and change the flow direction of medium in pipeline. It can also be used for fluid regulation and control. Manual ball valve is mainly based on the ball valve drive is by hand wheel or handle rotation and named. Because the small diameter ball valve has low torque, it can normally be opened manually, so there is no need for turbine operation or electric actuator operation.
Features of Manual Ball Valve:
1. ZECO manual ball valve switch torque is low, can be opened manually, easy to operate, open and close speed is fast, from full open to full open as long as 90% rotation;
2. For the sake of safety，ZECO manual limit switch ball valve is convenient to prevent the stem from being pushed out due to pressure during the pipeline maintenance. ZECO designed the anti-blowing structure of the stem. There is a boss in the processing of the upper stem that can be stuck in the groove of the packing box and the packing can be replaced safely without worrying about personnel safety;
3. ZECO manual ball valve is made of forging materials and casting materials. Each material has been verified by ZECO design department, and material inspection, chemical analysis and physical performance research will be carried out in the later inspection department to ensure that all parts can meet the world standard requirements and ensure long-term use by customers without worrying about quality problems;
4. ZECO manual limit switch gate valve has the traceability of ERP system in every process of production, and every inspection data and every production data will be recorded in ZECO's ERP system, so as to ensure that the products sent out still have replaceable parts and quality traceability after many years.
Material of Manual Ball Valve:
No |
Part |
Material |
1 |
Body |
ASTM A105 |
2 |
Bonnet |
ASTM A105 |
3 |
Ball |
ASTM A105 |
4 |
Seat |
ASTM A105 + PTFE |
5 |
Stem |
ASTM A182 F6a |
6 |
Anti-static Device |
SS304 |
7 |
Gasket |
Graphite + SS304 |
8 |
Bolt |
ASTM A193 B7 |
9 |
Nut |
ASTM A194 2H |
10 |
O-ring |
Viton A |
11 |
Lever |
ASTM A216 WCB |
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