Shortcomings of the globe valve
1 fluid resistance is large. The medium passage in the valve body is rather tortuous, so the energy consumption is large. However, the DC resistance valve has a relatively small fluid resistance;
2 The opening and closing torque is large, and the opening and closing is more laborious. When closing, because the direction of motion of the valve flap is generally opposite to the direction of the medium pressure, the force of the medium must be overcome, so the opening and closing torque is large. The medium and high pressure larger diameter shut-off valve can adopt balanced structure to reduce the opening and closing torque;
3 The flow direction of the medium is limited. It is generally required that the medium flow from top to bottom. .
Structure of the stop valve
The structure of the shut-off valve body is straight-through, direct-flow and right-angle. Straight-through is a common structure, but its fluid resistance is large; DC-type fluid resistance is small, and it is mostly used for fluids containing solid particles or high viscosity. The right angle valve body is mostly forged, suitable for small diameter, high pressure shut-off valves.
Globe valve installation and maintenance
1 Handwheel, handle operated shut-off valve can be installed at any position of the pipe.
2 Handwheel, handle and transmission mechanism are not allowed to be used for lifting.
3 When installing, please pay attention to the direction of the use of the medium and the direction of the arrow on the valve body.
4 The shut-off valve with gear mechanism (such as gear transmission, electric, pneumatic or hydraulic) should be installed according to the product manual.

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