Description
API 602 Forged Stainless Steel Gate Valve Technical Data Sheet
F316L Material 3/4″ 800LB NPT/Welded 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 Gate 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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3/4 inch (DN20)
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Pressure Class
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Class 800 LB (PN130)
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Structure Type
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OS&Y (Outside Screw and Yoke), Bolted Bonnet
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Connection Type
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NPT Threaded (ASME B1.20.1) or Socket Weld (ASME B16.11)
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Operation
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Handwheel
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Body Material
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ASTM A182 F316L (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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Manufacturer Standard / ASME B16.10
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Socket Weld Ends
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ASME B16.11
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Threaded Ends
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ASME B1.20.1 (NPT)
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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
- Wedge Design: Solid wedge, fully guided design, minimizes wear, reliable sealing
- Stem Design: Backseat feature allows packing replacement under pressure when valve is fully open
- Seating Surface: Metal-to-metal seating, hardfaced or integral stainless steel seat rings for durability
- Packing: Flexible graphite packing, low emission design
- Seat Rings: Renewable seat rings or integral seat
- Main Component Materials (F316L 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 F316L
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Forged Austenitic Stainless Steel
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2
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Bonnet
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ASTM A182 F316L
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Forged Austenitic Stainless Steel
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3
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Wedge
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ASTM A182 F316L
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Stainless Steel
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4
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Seat Ring
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ASTM A276 316L
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Hardened Stainless Steel, Renewable or Integral
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5
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Stem
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ASTM A182 F316L
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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 A182 F316L
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Stainless Steel
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9
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Gland Flange
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ASTM A182 F316L
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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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Eye Bolt
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ASTM A193 B8
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Stainless 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
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Item
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Parameter
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Nominal Pressure
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Class 800 LB (PN130)
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Shell Test Pressure
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20.0 MPa (Hydrostatic) [API 598]
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High-Pressure Seat Test Pressure
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14.8 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
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Applicable Media
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Nitric acid, acetic acid, corrosive media
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5.2 Dimensions (3/4″ Class 800 NPT/Socket Weld)
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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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92 mm
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For NPT/SW ends, typical API 602 value
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Height (H-OPEN)
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Approx. 161 – 169 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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Socket Weld Bore (B)
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28.5 mm
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Socket weld inner diameter
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Socket Weld Depth (S)
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12.7 mm
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Minimum socket depth
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Threaded End
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3/4″ NPT
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Per ASME B1.20.1
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Weight
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Approx. 2.3 kg
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Bolted bonnet type, reference
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5.3 End Connection Details
- NPT Threaded Ends: Per ASME B1.20.1, 3/4 inch American Standard Taper Pipe Thread
- Socket Weld Ends (SW): Per ASME B16.11, bore dia 28.5mm, socket depth 12.7mm
- Flow Direction: Gate valve has no flow direction restriction
- 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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20.0 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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14.8 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.
- Cleaning & Protection: Valves internally and externally cleaned, ends covered with protectors, threaded or weld ends 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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