Description
Forged Steel Globe Valve Technical Data Sheet (API 602)
A105N Material DN50 PN40 Welded Flange
- General Information
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Item
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仕様
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バルブタイプ
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Forged Steel Globe Valve
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Design Standard
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API 602 / ASME B16.34 / BS 5352
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公称サイズ
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DN50 (2 inch)
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Pressure Class
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PN40 (Class 300 LB)
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Bonnet Type
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OS&Y (Outside Screw and Yoke), Bolted Bonnet
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Connection Type
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Welded Flange
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手術
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Handwheel
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ボディ素材
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ASTM A105N (Forged Carbon Steel)
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- Applicable Standards
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Item
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Standard Code
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Design & Manufacturing
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API 602, ASME B16.34, BS 5352
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Face-to-Face / End-to-End
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ASME B16.10
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Flanged Connections
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ASME B16.5 (PN40/Class 300)
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Test & Inspection
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API 598
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Pressure-Temperature Rating
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ASME B16.34
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Valve Marking
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MSS SP-25
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- Main Design Features
- ボディ構造: One-piece die forged body, dense structure, high strength, eliminates casting defects
- Bonnet Connection: Bolted bonnet design with 316/Flexible Graphite spiral wound gasket sealing
- Disc Design: Renewable disc type, hardfaced seating surface
- Stem Design: Backseat feature allows packing replacement under pressure when valve is fully open
- Operating Characteristics: Disc moves linearly along seat centerline, short stroke, reliable shut-off
- Seat Design: Metal-to-metal seating or STL hardfacing for durability
- Packing: Flexible graphite packing, low emission design
- Main Component Materials (A105N Material)
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Item
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Part Name
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材料
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Standard/Remark
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1
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体
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ASTM A105N
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Forged Carbon Steel, suitable for NACE MR0175
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2
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Bonnet
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ASTM A105N
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Forged Carbon Steel
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3
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ディスク
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ASTM A276 420 / A105N + STL
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13Cr Stainless Steel or Hardfaced
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4
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シート
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Integral / STL Hardfaced
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Machined directly on body or hardfaced
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5
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幹
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ASTM A182 F6a (13Cr)
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Stainless Steel
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6
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Gasket
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316 + Flexible Graphite
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Spiral Wound
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7
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Packing
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Flexible Graphite
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Low emission design
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8
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Gland Bushing
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ASTM A276 410
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Stainless Steel
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9
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Gland Flange
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ASTM A105
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Carbon Steel
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10
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Bonnet Bolt
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ASTM A193 Gr.B7
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Alloy Steel
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11
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Bonnet Nut
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ASTM A194 Gr.2H
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Heavy Hex Nut
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12
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Eye Bolt
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ASTM A193 Gr.B7
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Alloy Steel
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13
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Handwheel
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ASTM A197
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Malleable Cast Iron
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- Technical Parameters & Dimensions
5.1 Pressure-Temperature Ratings
- Material Group: Group 1.1 (Carbon Steel)
- Temperature Range: -29°C ~ 425°C
- Applicable Media: Water, steam, oil, etc.
5.2 Dimensions (DN50 PN40 Welded Flange)
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Dimension
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Value
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Remark
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End-to-End Length (L)
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220 mm
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Flanged ends, per API 602 standard dimensions
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Height (H-OPEN)
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Approx. 370 mm
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Fully open position
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Handwheel Diameter (W)
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240 mm
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Flange Diameter (D)
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165 mm
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ASME B16.5 Class 300 2″ RF
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Bolt Circle Diameter
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127 mm
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ASME B16.5 Class 300 2″ RF
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Number of Bolt Holes/Size
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8 / 19 mm
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ASME B16.5 Class 300 2″ RF
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Flange Sealing Face
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Raised Face
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ASME B16.5
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Weight
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Approx. 18.0 kg
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Bolted bonnet type, reference value
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5.3 End Connection Details
- Welded Flange: Flange dimensions per ASME B16.5 Class 300, Raised Face sealing, flange to be welded to pipe
- Test & Inspection (API 598)
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Test Item
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Test Pressure (PN40/Class 300)
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Medium
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Acceptance Criteria
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Shell Test
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7.7 MPa (Hydrostatic)
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Water
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No visible leakage
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High-Pressure Seat Test
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5.7 MPa (Hydrostatic)
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Water
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No visible leakage
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Low-Pressure Seat Test
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0.5 – 0.7 MPa (Air)
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Air
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No bubbles leakage
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Test Duration
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Per API 598
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—
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Hold time conforms to standard
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- Marking & Supply
- Valve Marking: Per MSS SP-25, nameplate to include material, pressure, heat number, etc.
- Cleaning & Protection: Valves internally and externally cleaned, flange faces covered with protectors and coated with rust preventive
- Documentation: Material certificates, pressure test reports, declaration of conformity provided with shipment
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