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os&y gate

DN400 PN16 Cast Iron Metal Seated Rising Stem Gate Valve

DN400 PN16 Cast Iron Metal Seated Rising Stem Gate Valve

• Type: Outside Screw and Yoke (OS&Y), Solid Wedge, Flanged Ends
• Seat Type: Metal-to-Metal (Bronze Seated)
• Stem Design: Rising stem (indicates open/close position)
• Operation: Handwheel Operated (Gearbox is mandatory for this size due to high seating torque of metal seals)
• Application: High-temperature fluids, Oils, Steam, Abrasive media, or where rubber is not suitable.

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Descrição

Technical Data Sheet

Outside Screw and Yoke (OS&Y) Gate Valve
(Bronze-Seated, Metal-to-Metal Design)

Product Name: OS&Y Solid Wedge Gate Valve (Bronze Seated)
Padrão: BS5163 / PN16
Tamanho: DN400 (16 inches)

  1. General Design Features
  • Tipo: Outside Screw and Yoke (OS&Y), Solid Wedge, Flanged Ends
  • Seat Type: Metal-to-Metal (Bronze Seated)
  • Design da haste: Rising stem (indicates open/close position)
  • Operação: Handwheel Operated (Gearbox is mandatory for this size due to high seating torque of metal seals)
  • Aplicativo: High-temperature fluids, Oils, Steam, Abrasive media, or where rubber is not suitable.
  1. Applicable Standards
  • Design & Manufacturing: BS5150 / BS5163 (Metal-seated variants often follow BS5150) / EN1171
  • Face-to-Face Dimension: EN558-1 Series 3 (or BS2089)
  • Flange Drilling: BS4504 / EN1092-2 PN16
  • Test & Inspection: EN12266-1 (Rate A or B depending on spec)
  1. Technical Parameters

Item

Unit

Parâmetro

Nominal Diameter

mm

DN400 (16″)

Nominal Pressure

PN

16

Working Pressure

MPa

1.6 MPa (16 bar)

Shell Test Pressure

bar

24 bar

Seal Test Pressure (Metal Seat)

bar

17.6 bar (Leakage rate allowed per ISO 5208, Rate D or tighter if specified)

Working Temperature

-10°C ~ +200°C (or higher) *

Suitable Medium

Water, Steam, Oils, Gases, High-temp fluids

*Note: Temperature range depends on the specific bronze alloy and gland packing material.

  1. Main Component Materials

Componente

Specified Material

Notes / Alternative

Corpo

Ductile Iron (DI)

Typically GGG-40 or GGG-50

Wedge / Disc

Ductile Iron (DI)

Solid wedge design

Seat Ring (Body)

Bronze

Corrosion-resistant ring pressed or welded into the body.

Seat Ring (Wedge)

Bronze

Critical Difference: Both seating surfaces are Bronze (Body and Wedge) for metal-to-metal sealing.

Tronco

Stainless Steel

Typically 2Cr13, SS304, or SS420

Stem Nut

High-strength Brass / Aluminum Bronze

Located in the Yoke

Bonnet

Ductile Iron (DI)

Gland Packing

Graphite / PTFE

For high-temperature stem sealing

Handwheel

Cast Iron / Malleable Iron

Must be fitted with a Gearbox for DN400

Coating

Epoxy Resin

Min thickness > 250 microns, Color Blue RAL5005 (or as specified)

  1. Dimensions & Connection Data (DN400 Reference)

*Note: Metal-seated solid wedge valves are often heavier than resilient seated valves. The dimensions below are estimates based on common BS standards. Request certified drawing for exact values. *

Dimension Item

Value (mm)

Notas

Face-to-Face Length (L)

Approx. 600 mm

EN558-1 Series 3

Flange Diameter (D)

Approx. 565 mm

BS4504 PN16

Bolt Circle Diameter (PCD)

Approx. 525 mm

Number of Bolt Holes

20 – 24

Bolt Hole Diameter

Approx. 30 – 33 mm

Overall Height (H) (Open)

Approx. 1400 – 1850 mm

Height when valve is fully open

Weight (approx)

Approx. 450 – 550 kg

Metal-seated valves are heavier than resilient-seated ones due to solid wedge mass.

  1. Critical Notes & Selection Tips
  1. “Bronze Seated” Definition:
  • This data sheet now reflects a true Bronze-to-Bronze seal. The wedge has a Bronze ring/face that mates with the Bronze seat in the body. This is a metal seat, not a resilient seat.
  • Torque Requirement (Mandatory Gearbox):
    • Unlike soft-seal valves which rely on rubber compression, metal-seated valves require significant mechanical force to close tightly.
    • For a DN400 PN16 metal-seated valve, a gearbox (worm gear) is NOT optional – it is mandatory. Please confirm the gearbox ratio with the supplier.
  • Leakage Rate:
    • Metal-seated valves cannot achieve “zero leakage” (bubble tight) like rubber-seated valves. They typically conform to ISO 5208 Rate D (0.1x DN mm³/s) or Rate E. Please confirm the acceptable leakage rate for your application.
  • Aplicativo:
    • This bronze-on-bronze configuration is excellent for hot water, steam condensate, and some oil services where EPDM or NBR rubber would fail.

    Action Required:
    Please confirm with the manufacturer:

    1. Gearbox Ratio & Output Torque (Is it suitable for manual operation under max differential pressure?)
    2. Sealing Leakage Rate (ISO 5208 Rate D or better?)
    3. Flange drilling details (BS4504 PN16) to match your pipeline.

    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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