YGG 3" (DN80) PN250 Globe Valve – Bolted Bonnet, Rising Stem

The YGG DN80 PN250 globe valve is a high-performance stop valve engineered for critical flow control in high-pressure, high-temperature applications such as steam, hydrocarbon processing, and industrial utility services. Featuring a straight-pattern design with flanged ends conforming to DIN EN 1092-1 standards, this valve is built with a forged carbon steel body (presumed ASTM A105 or equivalent), a bolted bonnet, and a renewable hard-faced metal seat for long service life and maintenance flexibility. The rising stem with outside screw and yoke (OS&Y) configuration ensures visual position indication, while graphite gland packing per DIN 30690-1 provides reliable stem sealing under extreme thermal and pressure conditions. Its 13Cr trim (Trim No. 8 equivalent) offers corrosion and wear resistance. This manually operated globe valve can also be adapted for electric or pneumatic actuation, and is suitable for throttling applications with linear flow characteristics. Tested at 375 bar hydrostatic body pressure, the valve complies with European industrial piping standards and is marked accordingly.

Specifications:

– Valve Type: Globe Valve (Stop Valve, Straight Pattern)
– Nominal Size: DN80 (3" / 80 mm)
– Pressure Rating: PN250 (250 bar / 3,625 PSI @ 38°C)
– Body Material: Carbon Steel (Presumed ASTM A105 Forged or Cast Equivalent)
– Bonnet Type: Bolted Bonnet
– Trim Material: 13Cr or Equivalent (Typically Trim No. 8 per DIN/EN)
– Seat Type: Renewable Metal Seat – Hardfaced (stellite or equivalent optional)
– End Connection: Flanged Ends – DIN EN 1092-1 (PN250 Flange)
– Face-to-Face Dimension: DIN EN 558 Series 1 (~310 mm)
– Stem Type: Rising Stem, Outside Screw and Yoke (OS&Y)
– Gland Packing: Graphite Rings, DIN 30690-1 Compliant
– Handwheel: Carbon Steel with Locking Nut
– Flow Direction: Uni-directional (Indicated by Cast Body Arrow)
– Operation: Manual or Actuator Ready (optional pneumatic/electric)
– Height (Closed): ~720 mm
– Width (Handwheel Span): ~360 mm
– Length (Face-to-Face): ~310 mm
– Weight: Approx. 68–85 kg (depending on trim and actuator presence)
– Design Temperature Range: -29°C to +400°C
– Normal Operating Pressure: 250 bar
– Normal Operating Temperature: Up to 400°C (depending on material class)
– Test Pressure (Hydrostatic):
 • Body: 375 bar
 • Seat: 275 bar
– Flow Characteristic: Linear (Throttling and Isolation Capability)
– Full Opening Valve: No – Not Full Bore
– Failure Action: Manual – Valve remains in last position
– Fluid Compatibility: Steam, Hydrocarbons, Water, Natural Gas, Process Fluids
– Piping Class Compatibility: DIN 2401 / EN 13480 Systems
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