1/2″-800LB Close Die Forged Steel Gate Valve

Design Standard API 602 / ASME B16.34 / BS 5352
Nominal Size 1/2 inch (DN15)
Pressure Class Class 800 LB (PN130)
Structure Type OS&Y (Outside Screw and Yoke), Bolted Bonnet
Connection Type NPT Threaded (ASME B1.20.1) or Socket Weld (ASME B16.11)
Operation Handwheel
Body Material ASTM A105N (Forged Carbon Steel, Normalized, suitable for NACE MR0175)

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API 602 Forged Steel Gate Valve Technical Data Sheet

A105N Material 1/2″ 800LB NPT/Welded Ends

General Information

Item	Especificação
Tipo de válvula	Forged Steel Gate Valve
Design Standard	API 602 / ASME B16.34 / BS 5352
Tamanho nominal	1/2 inch (DN15)
Pressure Class	Class 800 LB (PN130)
Structure Type	OS&Y (Outside Screw and Yoke), Bolted Bonnet
Connection Type	NPT Threaded (ASME B1.20.1) or Socket Weld (ASME B16.11)
Operação	Handwheel
Material do corpo	ASTM A105N (Forged Carbon Steel, Normalized, suitable for NACE MR0175)

Applicable Standards

Item	Standard Code
Design & Manufacturing	API 602, ASME B16.34, BS 5352
Face-to-Face / End-to-End	Manufacturer Standard / ASME B16.10
Socket Weld Ends	ASME B16.11
Threaded Ends	ASME B1.20.1 (NPT)
Test & Inspection	API 598
Pressure-Temperature Rating	ASME B16.34
Valve Marking	MSS SP-25

Main Design Features

Construção da carroceria: One-piece die forged body, dense structure, high strength, eliminates casting defects
Bonnet Connection: Bolted bonnet design with 304/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: Hardfaced with Stellite or 13Cr stainless steel for durability
Packing: Flexible graphite packing, low emission design
Seat Rings: Renewable seat rings or integral seat

Main Component Materials (A105N Material)

Item	Part Name	Material	Standard/Remark
1	Corpo	ASTM A105N	Forged Carbon Steel, Normalized
2	Bonnet	ASTM A105N	Forged Carbon Steel
3	Wedge	ASTM A276 410 / A105N+STL	13Cr Stainless Steel or Hardfaced
4	Seat Ring	ASTM A276 410 / STL Hardfaced	Hardened Stainless Steel, Renewable or Integral
5	Tronco	ASTM A182 F6a (13Cr)	Stainless Steel
6	Gasket	304 + Flexible Graphite	Spiral Wound
7	Packing	Flexible Graphite	Low emission design
8	Gland Bushing	ASTM A276 410	Stainless Steel
9	Gland Flange	ASTM A105	Carbon Steel
10	Bonnet Bolt	ASTM A193 Gr.B7	Alloy Steel
11	Bonnet Nut	ASTM A194 Gr.2H	Heavy Hex Nut
12	Eye Bolt	ASTM A193 Gr.B7	Alloy Steel
13	Handwheel	ASTM A197	Malleable Cast Iron

Technical Parameters & Dimensions

5.1 Pressure-Temperature Ratings

Item	Parâmetro
Nominal Pressure	Class 800 LB (PN130)
Shell Test Pressure	20.0 MPa (Hydrostatic) [API 598]
High-Pressure Seat Test Pressure	14.8 MPa (Hydrostatic) [API 598]
Low-Pressure Pneumatic Test Pressure	0.5 – 0.7 MPa (Air) [API 598]
Faixa de temperatura	-29°C ~ 425°C
Applicable Media	Water, steam, oil, etc.

5.2 Dimensions (1/2″ Class 800 NPT/Socket Weld)

Dimension	Value	Remark
End-to-End Length (L)	79 mm	For NPT/SW ends, typical API 602 value
Height (H-OPEN)	Approx. 157 mm	Fully open position, reference
Handwheel Diameter (W)	100 mm	Reference
Socket Weld Bore (B)	22.2 mm	Socket weld inner diameter
Socket Weld Depth (S)	10 mm	Minimum socket depth
Threaded End	1/2″ NPT	Per ASME B1.20.1
Weight	Approx. 1.6 kg	Bolted bonnet type, reference

5.3 End Connection Details

NPT Threaded Ends: Per ASME B1.20.1, 1/2 inch American Standard Taper Pipe Thread
Socket Weld Ends (SW): Per ASME B16.11, bore dia 22.2mm, socket depth 10mm
Flow Direction: Gate valve has no flow direction restriction

Test & Inspection (API 598)

Test Item	Test Pressure	Medium	Acceptance Criteria
Shell Test	20.0 MPa	Water	No visible leakage
High-Pressure Seat Test	14.8 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.
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

GARANTIA:

A SAVVY VALVES está comprometida em oferecer produtos de qualidade excepcional e um serviço pós-venda sem preocupações. Nossas válvulas têm garantia de vida útil mínima de 12 meses, durante a qual forneceremos gratuitamente todas as peças de reposição necessárias e instruções detalhadas de manutenção. Dentro do período de garantia, caso ocorra algum dano não causado por intervenção humana, substituiremos os componentes gratuitamente e forneceremos suporte técnico profissional. Após o término da garantia, os clientes pagam apenas o custo das peças de reposição, continuando a se beneficiar de serviços de manutenção com desconto. Nosso objetivo é ajudar os clientes a reduzir custos operacionais e aumentar a eficiência da produção por meio de qualidade confiável e suporte pós-venda abrangente. Seja para consultas técnicas ou necessidades de manutenção, nossa equipe de especialistas responderá prontamente para garantir que seu sistema de válvulas mantenha o desempenho ideal o tempo todo.

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