FLANGED GLOBE VALVE
FeaturesGlobe Valves; operate as opening and closing procedure by pressing and releasing the plug connected to end of the plug spin on to the flow cross section. Flow direction should go only one way. Globe valve must be preferred in case of the pressure flow opened to atmosphere since the force obtained by the spindle press the plug on to the seat helps sealing.
Sealing System
1. Bonnet gasket 2. Plug 3. Seat 4. Seat gasket Sealing from body to atmosphere is provided by one piece bonnet gasket (wire knitted Graphite gasket or Graphite). Sealing from the spindle to atmosphere is provided by the stuffing comprised rings. |
AdvantagesAssets
Fluid Type
For clean, neutral or agressive fluids For gas fluids Areas
Hot and cold water facilities Steam facilities Hot oil facilities Petrochemical plants Machinery manufacturing etc. |
Design Pressure : 16 bar - 25 bar - 40 bar
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RSSB - BELLOWS SEALED FLANGED GLOBE VALVE
FeaturesBellows 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.
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. |
Advantages & cautionsOperating Media
• Steam • Superheated water • LPG, pressured air • Boiled oil • Miscellaneous types of gauges (e.g oxygen, hydrogen, nitrogen) • Heat transfer oils • Chemicals 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. Diameter DN 15-300 (1/2"-10") Pressure PN 16 - PN 25 - PN 40 Temperature 400°C max Material GJL250 Cast Iron 0.7040 Ductile Iron 1.0619 Cast Steel 1.4408 Stainless Steel Connection Type Flanged DIN EN 1092-2 Screwed DIN EN ISO 228-1 Socket DIN EN 12760 Butt Welded DIN EN 12627 External Dimension Flanged DIN EN 558/1.seri Screwed DIN EN 3202-4/M9 Socket DIN EN 3202-4/M9 Color Cast Iron - Grey Ductile Iron - Brown Cast Steel - Dark Blue Stainless Steel - Metalic |
Design Pressure : 16 bar - 25 bar - 40 bar
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