- Bellows Globe Valve
- Bellows sealed globe valves have enhanced outer sealing capability when compared to standard globe valves.
- Stainless steel bellow has to be broken in order to allow any external leakage. There is also a stuffing box as
- a secondary sealing around the valve spindle, which should eliminate leakage to atmosphere for a limited period.
- Design and modification rights are reserved
- Internal sealing of the valves achieved as same as in gland type globe valves. Metal plug sits over a metal seat.
- Fluids like thermal oils or any application where the external leakage to atmosphere should cause contamination
- and/or create severe risks on health and safety instructions, bellows sealed valves should be the best choice
- as an isolation valve
Product Details
Technicial Specifications
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Benefits
• Asbestos free
• Reliable, leak-tight shut off-in line and the atmosphere
• Unique robust construction principle
• No wear on sealing surfaces
• Insensitive to impurity
• Long service life and optimised life cycle costs
• Excellent regulation of flow
• Maintenance free
• Valve remains in line if replacement of seat rings and internal parts are necessary
Fields of Operation
• District heating
• Energy producing
• Refinery
• Steel production
• Petrocemical
• Chemistry
• Production of tobacco
• Food and beverage
• Pulp and paper
The Sealing System
A stainless steel piston enclosed by two resilient valve ring forms the sealing system. The sealing area is the surface of the piston. The upper valve ring ensures tightness against the atmosphere, while the lower valve ring provides sealing across to ports.
