1/2″-300LB F53 Close Die Forged Gate Valve

1/2″-300LB F53 Close Die Forged Gate Valve

Nominal Size 1/2″ (DN15)
Pressure Rating Class 300 (PN 50)
Valve Type Gate Valve – Rising Stem, Solid Wedge
Body Construction Close Die Forged, Bolted Bonnet
End Connections NPT Female (ASME B1.20.1) / Socket Weld (ASME B16.11) / Flanged (ASME B16.5 Class 300) as specified
Temperature Range –29°C ~ +250°C (depending on packing)
Suitable Media Seawater, sour gas (H₂S/CO₂), chlorides, acids, high pressure oil & gas, chemical fluids
Flow Direction Bidirectional

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TECHNICAL DATA SHEET

Product: Close Die Forged Gate Valve
Ukuran: 1/2 inch (DN15)
Peringkat Tekanan: Class 300
Bahan Tubuh: F53 (Super Duplex Stainless Steel – UNS S32750)
Design: Close Die Forged, Bolted Bonnet, Rising Stem

  1. Basic Specifications

Parameter

Value

Ukuran Nominal

1/2″ (DN15)

Peringkat Tekanan

Class 300 (PN 50)

Jenis Katup

Gate Valve – Rising Stem, Solid Wedge

Konstruksi Bodi

Close Die Forged, Bolted Bonnet

End Connections

NPT Female (ASME B1.20.1) / Socket Weld (ASME B16.11) / Flanged (ASME B16.5 Class 300) as specified

Kisaran Suhu

–29°C ~ +250°C (depending on packing)

Suitable Media

Seawater, sour gas (H₂S/CO₂), chlorides, acids, high‑pressure oil & gas, chemical fluids

Flow Direction

Bidirectional

  1. Main Features
  • Close Die Forged Body: Precision forged construction ensures superior mechanical strength, uniform grain structure, and freedom from porosity. Ideal for high‑pressure and cyclic loading applications.
  • F53 Super Duplex Stainless Steel: Provides exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking (SCC) in chloride‑containing environments. High tensile strength and excellent fatigue resistance.
  • Rising Stem Design: Stem rises as valve opens, providing visual indication of valve position.
  • Solid Wedge Gate: Provides positive shut‑off; wedge geometry ensures tight sealing even under thermal cycling and pressure fluctuations.
  • Bolted Bonnet: Allows easy access for maintenance and packing replacement.
  • Blowout‑Proof Stem: Stem is designed to prevent ejection under pressure.
  • Compact Design: Small footprint suitable for tight installations, instrumentation panels, and high‑density piping systems.
  1. Material List (Specified Configuration)

Item

Part

Bahan

1

Tubuh

F53 (Super Duplex Stainless Steel – UNS S32750) – Close Die Forged

2

Bonnet

F53 (Super Duplex Stainless Steel) – Forged

3

Wedge (Gate)

F53 + optional Stellite 21 hardfacing (seat contact surfaces)

4

Tangkai

F53 / F55 (Super Duplex) or Inconel 718

5

Seat Rings

Integral with body (or threaded F53)

6

Packing

PTFE (standard) / Flexible Graphite (high‑temp)

7

Gasket

Spiral Wound, F53 + Graphite / PTFE

8

Bolting

ASTM A193 B8M (316 stainless steel) or A453 Grade 660

9

Handwheel

Stainless Steel / Carbon Steel (coated)

Note: F53 (UNS S32750) offers PREN (Pitting Resistance Equivalent Number) ≥ 40, ideal for offshore and seawater service.

  1. Dimensions & Structural Data

Parameter

Value

Face‑to‑Face Length (L)

~60 – 70 mm (per ASME B16.10 for Class 300 gate valves)

End Connections

1/2″ NPT Female (ASME B1.20.1) – standard

Overall Height (Open)

~150 – 180 mm

Stem Diameter

~10 – 12 mm

Handwheel Diameter

~70 – 90 mm

Approx. Weight

~1.0 – 1.8 kg (depending on end connection)

Note: Final dimensions to be confirmed by manufacturing drawings.

  1. Design & Testing Standards

Item

Standar

Design & Manufacture

API 602 (for small bore forged valves), ASME B16.34

End Connections

ASME B1.20.1 (NPT), ASME B16.11 (SW), ASME B16.5 (Flanged)

Pressure‑Temperature Rating

ASME B16.34

NACE Compliance

NACE MR0175 / ISO 15156 (for sour service)

Pressure Testing

API 598 or ISO 5208

Low‑Pressure Air Test

0.6 MPa (6 bar) – no visible leakage

High‑Pressure Hydrostatic Test

1.5 × rated pressure (body), 1.1 × rated pressure (seat)

  1. F53 Super Duplex Stainless Steel Advantages

Property

Benefit

Corrosion Resistance

Excellent resistance to pitting, crevice corrosion, and stress corrosion cracking in chloride and sour environments (PREN ≥ 40)

High Strength

Yield strength > 550 MPa – approximately twice that of 316 stainless steel

Sour Service

NACE MR0175 compliant for H₂S/CO₂ environments

Seawater Service

Ideal for marine and offshore applications due to high resistance to chloride attack

Fatigue Resistance

Superior performance under cyclic pressure and thermal loading

  1. Close Die Forging Advantages

Feature

Benefit

Grain Structure

Uniform and continuous grain flow follows part contours, increasing strength

Density

No porosity or voids common in castings

Mechanical Properties

Higher tensile strength and impact resistance compared to cast equivalents

Pressure Integrity

Superior performance under high‑pressure and cyclic loading

Surface Finish

Smooth surface reduces stress concentration points

  1. Operating Guidelines
  • Stem Operation: Rising stem provides clear visual indication of open/closed position. Turn handwheel clockwise to close.
  • Packing Adjustment: If leakage occurs at the stem, lightly tighten the packing gland nuts. Do not overtighten.
  • Arah Aliran: Gate valves are bidirectional; no specific flow orientation required.
  • Material Compatibility: F53 is suitable for seawater, chlorides, and sour gas. Avoid use in reducing acids (e.g., hydrochloric) unless verified.
  1. Typical Applications
  • Offshore Platforms: Seawater injection systems, topside piping, firewater systems.
  • Subsea Equipment: Subsea manifolds, Christmas trees, and umbilical termination units.
  • Oil & Gas: Sour gas production (H₂S/CO₂), wellhead control panels, high‑pressure test manifolds.
  • Chemical Processing: Chloride‑containing environments, acetic acid, and organic acid service.
  • Desalination Plants: Reverse osmosis systems, high‑pressure seawater lines.
  • Marine: Shipboard piping systems, ballast water treatment.
  1. Alternative Configurations

Option

Keterangan

End Connections

NPT Female (standard), Socket Weld, or Flanged (ASME B16.5 Class 300)

Packing Material

PTFE (standard) for general service; Flexible Graphite for high‑temperature up to 250°C

Hardfaced Wedge

Stellite 21 hardfacing for abrasive or high‑cycle service

NACE Compliance

Materials and manufacturing per NACE MR0175 for sour service

Stem Material Upgrade

Inconel 718 for enhanced corrosion resistance and high‑strength applications

  1. Ordering Information

When ordering, please specify:

  • Size: 1/2″
  • Pressure Rating: Class 300
  • Body Material: F53 (Super Duplex Stainless Steel)
  • End Connections: NPT / Socket Weld / Flanged
  • Packing Type: PTFE or Graphite
  • Optional Features: NACE MR0175, hardfaced wedge, certification requirements (e.g., material test reports, PMI, hydrostatic test)

This data sheet reflects the 1/2″ – 300LB F53 Close Die Forged Gate Valve configuration. For specific material grades, end connection details, or additional testing requirements, please contact us with your project specifications.

JAMINAN:

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