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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Specification
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Valve Type
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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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Nominal Size
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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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Operation
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Handwheel
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Body Material
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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
- Body Construction: 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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Material
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Standard/Remark
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1
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Body
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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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Disc
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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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Seat
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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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Stem
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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
GUATANTEE:
SAVVY VALVES is committed to delivering exceptional product quality and worry-free after-sales service. Our valves are guaranteed to provide a minimum service life of 12 months, during which we will supply all necessary spare parts and detailed maintenance instructions free of charge. Within the warranty period, if any non-human-induced damage occurs, we will replace components at no cost and provide professional technical support. After the warranty expires, customers only need to pay for the cost of spare parts, while still benefiting from discounted maintenance services. Our goal is to help clients reduce operational costs and enhance production efficiency through reliable quality and comprehensive after-sales support. Whether for technical inquiries or maintenance needs, our expert team will respond promptly to ensure your valve system maintains optimal performance at all times.
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