DN 300 - 2600 mm Hydraulic Globe Valve / Spherical Valve for
Spherical valves, as the name implies, are stop valves that use a
spherical to stop or start the flow. The spherical performs the
same function as the disk in the globe valve. When the valve handle
is operated to open the valve, the spherical rotates to a point
where the hole through the spherical is in line with the valve body
inlet and outlet. When the valve is shut, which requires only a
90-degree rotation of the Wormgear or weight hammer for most
valves, the spherical is rotated so the hole is perpendicular to
the flow openings of the valve body, and flow is stopped.
Spherical valve are widely used in fluid-handing systems for flow
control. These types of Rotary Valves are suitable for corrosive
applications. In general, Spherical valves offer many advantages
when contrasted with other types of valves, they provide superior
ease of operation, which can maintain and regulate high volume,
high pressure and high temperature flow. Most spherical valves
offer rugged construction providing with a long time service life,
and a comparable low cost.
The electro-hydraulic control system is PLC intellectual control type. It has multifarious functions, and it can debug, control locally as an
independent systematic unit without other additions. It also can be
carried on centralized management by the central computer through
I/O passway as an apparatus unit of the collecting and distributing
control system (DCS), realize linking and operating with water
pump, hydraulic turbine, by-pass valve and other pipelines
apparatus. It is furnished with manual function, and can turn on,
turn off the valve manually without power, meet valve debugging,
control request under the special operating mode.
Spherical valve have two type according to the operation type:
1. Motor-Driving/Manual control Spherical Valve
Nominal Diameter: 50 – 1000 mm
Nominal Pressure: 0.6 – 10.0 Mpa
2. Hydraulic control (Heavy Hammer type) Spherical Valve
Nominal Diameter: 300 – 2600 mm
Nominal Pressure: 1.6 – 16.0 Mpa
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