Glob Valve Types
The globe valve, which is the most commonly used valve type in installations all over the world, has three types with different sealing methods.
Pressure Globe Valve
The sealing system in pressure type valves is made by closing the valve, which is a metal closing element, by sitting on a metal disc. In other words, the sealing system is metal-metal.
Metal Bellows Globe Valve
The shaft sealing systems of these valves are developed with stainless steel bellows. In other words, the sealing system from the shaft bearing of the valve to the outside is supported by the bowl-bellows-shaft system installed between the cover and the body. There is also a packing group as a temporary solution against the risk of leakage as a result of problems that may occur in the bellows.
Piston Globe Valve
The sealing system of piston type valves is metal-elastic. These valves have two ring-shaped elastic rings and a piston inside them. This piston serves as the closing element. The pressure coming from the cover nuts surrounds the piston inside the rings with radial pressure. Sealing is provided by this pressure. Thanks to the closing method of the piston, unlike other globe valves, residues and dirt that may occur in the circuit are also cleaned.
Truvalve Globe Valve
- Shaft: AISI 304 - AISI 316
- Body Material: GG25 - GGG40
- Cover Material: GG25 - GGG40
- Flywheel: GG20
- Operating Temperature: -10 °C / 220 °C
- Pressure Class: PN16
1valve Metal Bellows Globe Valve
- Shaft: AISI 304 - AISI 316
- Body Material: GG25 - GGG40
- Cover Material: GG25 - GGG40
- Flywheel: GG20
- Operating Temperature: -10 °C / 220 °C
- Pressure Class: PN16 - PN25 - PN40