1/2″-300LB Close Die Forged Stainless Steel Globe Valve

Design Standard API 602 / ASME B16.34 / BS 5352
Nominal Size 1/2 inch (DN15)
Pressure Class Class 300 LB (PN50)
Bonnet Type OS&Y (Outside Screw and Yoke), Bolted Bonnet
Connection Type Butt Weld Ends (BW)
Operation Handwheel
Body Material ASTM A182 F304 (Forged Austenitic Stainless Steel)

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Beschrijving

Forged Steel Globe Valve Technical Data Sheet (API 602)

F304 Material 1/2″ 300LB Butt Weld Ends

General Information

Item	Specificatie
Kleptype	Forged Steel Globe Valve
Design Standard	API 602 / ASME B16.34 / BS 5352
Nominale grootte	1/2 inch (DN15)
Pressure Class	Class 300 LB (PN50)
Bonnet Type	OS&Y (Outside Screw and Yoke), Bolted Bonnet
Connection Type	Butt Weld Ends (BW)
Operatie	Handwheel
Lichaamsmateriaal	ASTM A182 F304 (Forged Austenitic Stainless Steel)

Applicable Standards

Item	Standard Code
Design & Manufacturing	API 602, ASME B16.34, BS 5352
Face-to-Face / End-to-End	ASME B16.10 / Manufacturer Standard
Butt Weld Ends	ASME B16.25
Test & Inspection	API 598
Pressure-Temperature Rating	ASME B16.34
Valve Marking	MSS SP-25

Main Design Features

Carrosseriebouw: 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)

Item	Part Name	Materiaal	Standard/Remark
1	Lichaam	ASTM A182 F304	Forged Austenitic Stainless Steel
2	Bonnet	ASTM A182 F304	Forged Austenitic Stainless Steel
3	Schijf	ASTM A182 F304 + STL	Hardfaced with Stellite
4	Stoel	Integral / STL Hardfaced	Machined directly on body or hardfaced
5	Stang	ASTM A182 F304	Stainless Steel
6	Gasket	304 + Flexible Graphite	Spiral Wound
7	Packing	Flexible Graphite	Low emission design
8	Gland Bushing	ASTM A182 F304	Stainless Steel
9	Gland Flange	ASTM A182 F304	Stainless Steel
10	Bonnet Bolt	ASTM A193 B8	Stainless Steel
11	Bonnet Nut	ASTM A194 8	Stainless Steel
12	Handwheel	ASTM A197	Malleable Cast Iron

Technical Parameters & Dimensions

5.1 Pressure-Temperature Ratings

Item	Parameter
Nominal Pressure	Class 300 LB (PN50)
Shell Test Pressure	7.7 MPa (Hydrostatic) [API 598]
High-Pressure Seat Test Pressure	5.7 MPa (Hydrostatic) [API 598]
Low-Pressure Pneumatic Test Pressure	0.5 – 0.7 MPa (Air) [API 598]
Temperature Range	-29°C ~ 425°C (derating at higher temps)
Applicable Media	Water, steam, oil, corrosive media

5.2 Dimensions (1/2″ Class 300 Butt Weld Ends)

Dimension	Value	Remark
End-to-End Length (L)	165 mm	Butt Weld Ends, typical API 602 value
Height (H-OPEN)	Approx. 196 mm	Fully open position, reference
Handwheel Diameter (W)	100 mm	Reference
Butt Weld OD	21.3 mm	Matching 1/2″ Sch40/80 pipe
Butt Weld Wall Thickness (t)	Per ASME B16.25	Bevel preparation per standard
Weight	Approx. 2.5 kg	Reference, may vary by manufacturer

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)

Test Item	Test Pressure	Medium	Acceptance Criteria
Shell Test	7.7 MPa	Water	No visible leakage
High-Pressure Seat Test	5.7 MPa	Water	No visible leakage
Low-Pressure Seat Test	0.5 – 0.7 MPa	Air	No bubbles leakage
Test Duration	Per API 598	—	Hold time conforms to standard

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

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