3 inch Gate Valve Class 800, F51 Material

3-Inch Class 800 Gate Valve in F51 Material: Product Introduction

Overview

The 3-inch Class 800 gate valve from Forged Steel Valve Manufacturer constructed from F51 (Duplex Stainless Steel 2205) stainless steel, is engineered for high-pressure and corrosive environments. Designed to meet stringent industrial standards, this valve ensures reliability, durability, and optimal performance in critical applications.

Key Specifications

1. Size:

– Nominal Diameter: 3 inches (DN80)，also has 1/2″, 3/4″, 1″, 1 1/4″, 1 1/2″, 2″.

– Face-to-Face Dimensions: Compliant with ASME B16.10.

– Full-Bore Design: Minimizes pressure drop and allows unrestricted flow.

- Reduce Bort-Bore Design: Minimizes pressure drop and allows unrestricted flow.

2. Pressure Rating:

– Class 800 (1380 psi at 100°F / 38°C), suitable for high-pressure systems.

– Conforms to ASME B16.34 pressure-temperature standards.

3. Connection Type:

– Butt-Weld Ends: Ensures leak-proof performance in high-integrity piping systems.

– Optional Flanged, SW or Threaded Connections: Customizable per project requirements.

4. Material:

– Body/Bonnet: F51 (UNS S31803/Duplex 2205): Combines high strength (2x stronger than 316L) with exceptional resistance to chloride stress corrosion, pitting, and erosion.

– Trim: Stellite-hardened seats and wedges for extended service life.

5. Applications:

– Oil & Gas: Offshore platforms, pipelines, and refineries.

– Chemical Processing: Aggressive media handling (acids, alkalis).

– Marine & Desalination: Seawater cooling systems.

– Power Generation: High-temperature steam and feedwater lines.

Advantages

- Corrosion Resistance: F51 material excels in harsh, chloride-rich environments.

- High Strength-to-Weight Ratio: Reduces valve weight without compromising durability.

- Zero-Leakage Design: Metal-seated construction ensures tight shutoff (tested per API 598).

- Low Maintenance: Robust design minimizes wear and operational downtime.

- Versatility: Compatible with aggressive fluids, steam, and high-pressure gases.

Standards Compliance

- API 602 / ASME B16.34 / API 600 / API 6D (design and testing).

- NACE MR0175 for sour service (H₂S environments).

- Fire-safe certified per API 607.

Newsway Valves Materials

NSW valve body and trim material can be offered in Forged type and Casting type. Next to stainless and carbon steel material, we also manufacture valves in special materials such as titanium, nickel alloys, HASTELLOY®*, INCOLOY®, MONEL®, Alloy 20, super-duplex, corrosion resistant alloys and urea grade materials.

Available materials