The DIN Cast Steel Y-Type Bellows Seal Globe Valve (also known as an oblique pattern valve) offers a streamlined flow path compared to standard T-pattern globe valves. It features a metallic bellows that creates a hermetic, leak-proof seal around the stem.
Constructed from cast steel (GP240GH), it minimizes pressure drop and turbulence while ensuring zero fugitive emissions. It is the preferred choice for high-pressure steam and hazardous thermal oil systems.
Technical Attribute Table: DIN Y-Type Bellows Seal Globe Valve
1,Design Standard,DIN EN 13709 / DIN 3356
2,Face-to-Face,DIN 3202 F1 / EN 558 Series 1
3,Pressure Rating,"PN16, PN25, PN40"
4,Body Material,Cast Steel (GP240GH / 1.0619 / WCB)
5,Nominal Diameter,DN15 to DN300
6,Stem Type,Oblique (Y-Pattern) Rising Stem
7,Bellow Material,SS316L / SS316Ti / Inconel
8,Disc/Plug Type,Throttling or Stop Disc (Hardened)
9,Seat Material,Stellite No. 6 or 13Cr Overlay
10,Flange Connection,DIN EN 1092-1 Type 21
11,Secondary Seal,Flexible Graphite Packing (Backup)
12,Bonnet Gasket,Spiral Wound SS316 + Graphite
13,Operation,Handwheel / Impact Handwheel / Actuator
14,Temperature Range,−29℃ to +425℃
15,Flow Coefficient,Higher than T-Pattern Globe Valves
16,Shell Test,"1.5× PN (e.g., 60 bar for PN40)"
17,Seat Test,"1.1× PN (e.g., 44 bar for PN40)"
18,Leakage Class,EN 12266-1 Rate A (Bubble Tight)
19,Bellow Cycle Life,"Minimum 5,000 Strokes (Standard)"
20,Suitable Media,"Thermal Oil, Vacuum Service, Ammonia, Steam"
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