globe valve Manufacturer

Body material: Carbon steel, Stainless steel, Alloy steel, etc<br>
Size range(s):1/2″～36″
End: RF, RTJ,BW, NPT,SW
Pressure rating: Class150 – Class2500
operation: gearbox, Electric-actuator, Pneumatic- actuator, etc.

Y Type Globe (Stop) Valve

Body material: Carbon steel, Stainless steel, Alloy steel,ect
Size range(s): 2″～20″
End: RF, RTJ, BW
Pressure rating: Class150～Class2500
operation: Lever, gearbox, Electric-actuator, Pneumatic- actuator, etc.

Throttle Globe(Stop) Valve

Body material: Carbon steel, Stainless steel, Alloy steel etc
Size range(s):1″～10″
End: RF, RTJ,BW
Pressure rating: PN16 –PN160
operation: handlewheel gearbox, Electric-actuator, Pneumatic- actuator, etc.

Angle Type Globe (Stop) Valve

Body material: Carbon steel, Stainless steel, Alloy steel,ect
Size range(s): 2″～16″
End: RF, RTJ, BW
Pressure rating: Class150～Class2500
operation: Lever, gearbox, Electric-actuator, Pneumatic- actuator, etc.

Cryogenic Globe (Stop) valve

Body material:LCC LCB CF8M CF8 F304 F316 ect
Size range(s): 2″～16″
End: RF, RTJ, BW
Pressure rating: Class150～Class600
operation: gearbox, Electric-actuator, Pneumatic- actuator, etc.

Pressure Seal Globe (Stop) Valve

Body material: Carbon steel, Stainless steel, Alloy steel etc
Size range(s): 2″～14″
End: RTJ, BW
Pressure rating: Class900～Class2500
Operation: gearbox, Electric-actuator, Pneumatic- actuator, etc.

Introduction To Globe (Stop) Valve

the globe (stop) valve is a plug-shaped disc which opening and closing part, the sealing surface is flat or conical, and the disc moves in a straight line along the center line of the fluid. The movement form of the valve rod includes lifting rod type (the valve rod is lifted and the handwheel is not lifted), and lifting rotating rod type (the handwheel rotates and lifts with the valve rod, and the nut is set on the valve body). Ordinary globe (stop) valve is only applicable to full open and full close, and regulation and throttling are not allowed. There is a special regulating throttle globe(stop) valve.

The globe(stop) valve is a forced sealing valve, so when the valve is closed, pressure must be applied to the valve disc to force the sealing surface not to leak. When the medium enters valve from below the valve disc, the resistance to be overcome by the operating force is the friction between the valve rod and the packing and the thrust generated by the pressure of the medium. The force to close the valve is greater than the force to open the valve, so the diameter of the valve rod should be larger, otherwise the valve rod bending fault will occur

globe valve's advantage and disadvantage

Advantages Of Globe (Stop)Valve

simple structure, relatively easy to manufacture and repair.
Small working stroke, short opening and closing time.
good sealing, small friction between the sealing surface, longer life.

Disadvantages Of Globe (Stop)Valve

High fluid resistance, open and close the force required.
not suitable for the media with particles, viscosity, easy to coking.
the adjustment performance is poor.

Sealing Principle of Globe(Stop) Valve

1. Plane Seal type

The sealing surface of the valve body and the sealing surface of the valve flap are made of plane, this kind of sealing surface is convenient for mechanical processing and simple manufacturing process

2. Conical Seal Type

The sealing surface of the valve body and the sealing surface of the valve flap is made of conical shape, this kind of sealing is labor-saving and reliable, and the debris in the medium is not easy to fall on the sealing surface

3. Spherical Seal Type

The sealing surface of the valve body is made of a very small conical surface, while the valve flap is flexible rotation, higher hardness of the sphere this sealing surface is suitable for high temperature and high-pressure occasions. Sealing labor-saving and reliable seal long life, this form of the seal is only applicable to smaller diameter valves