Description
Forged Steel Globe Valve Technical Data Sheet (API 602)
F304 Material 1/2″ 300LB Butt Weld Ends
- 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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1/2 inch (DN15)
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Pressure Class
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Class 300 LB (PN50)
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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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Butt Weld Ends (BW)
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Operation
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Handwheel
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Body Material
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ASTM A182 F304 (Forged Austenitic Stainless 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 / Manufacturer Standard
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Butt Weld Ends
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ASME B16.25
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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, no casting defects, excellent corrosion resistance
- Bonnet Connection: Bolted bonnet design with stainless steel/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 for durability
- Packing: Flexible graphite packing, low emission design
- Main Component Materials (F304 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 A182 F304
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Forged Austenitic Stainless Steel
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2
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Bonnet
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ASTM A182 F304
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Forged Austenitic Stainless Steel
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|
3
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Disc
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ASTM A182 F304 + STL
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Hardfaced with Stellite
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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 F304
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Stainless Steel
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6
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Gasket
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304 + 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 A182 F304
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Stainless Steel
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9
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Gland Flange
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ASTM A182 F304
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Stainless Steel
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10
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Bonnet Bolt
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ASTM A193 B8
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Stainless Steel
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11
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Bonnet Nut
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ASTM A194 8
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Stainless Steel
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12
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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
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Item
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Parameter
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Nominal Pressure
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Class 300 LB (PN50)
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Shell Test Pressure
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7.7 MPa (Hydrostatic) [API 598]
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High-Pressure Seat Test Pressure
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5.7 MPa (Hydrostatic) [API 598]
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Low-Pressure Pneumatic Test Pressure
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0.5 – 0.7 MPa (Air) [API 598]
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Temperature Range
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-29°C ~ 425°C (derating at higher temps)
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Applicable Media
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Water, steam, oil, corrosive media
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5.2 Dimensions (1/2″ Class 300 Butt Weld Ends)
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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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165 mm
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Butt Weld Ends, typical API 602 value
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Height (H-OPEN)
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Approx. 196 mm
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Fully open position, reference
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Handwheel Diameter (W)
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100 mm
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Reference
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Butt Weld OD
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21.3 mm
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Matching 1/2″ Sch40/80 pipe
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Butt Weld Wall Thickness (t)
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Per ASME B16.25
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Bevel preparation per standard
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Weight
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Approx. 2.5 kg
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Reference, may vary by manufacturer
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5.3 End Connection Details
- Butt Weld Ends (BW): Bevel preparation and dimensions per ASME B16.25, suitable for welding to pipe
- Test & Inspection (API 598)
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Test Item
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Test Pressure
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Medium
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Acceptance Criteria
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Shell Test
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7.7 MPa
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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
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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
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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 nominal size, pressure class, material, heat number, design standard, etc.
- Flow Direction: Flow direction arrow marking on body
- Cleaning & Protection: Valves internally and externally cleaned, ends covered with protectors
- 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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