CF8C Bevel Gear 300LB Stainless Steel API600 Gate Valve

Product Overview

The CF8C Bevel Gear 300LB Stainless Steel API600 Gate Valve is a heavy-duty industrial flow control valve engineered for corrosive, medium-pressure, and high-temperature applications. Constructed with premium CF8C (ASTM A351) stainless steel—an austenitic alloy with 19-22% chromium, 10-13% nickel, and 2-3% molybdenum—it offers exceptional resistance to pitting, crevice corrosion, and oxidation, ideal for handling acids, alkalis, seawater, and chemical media. Equipped with a precision bevel gear mechanism (reducing operating torque by 30-50%), 300LB (PN50) pressure rating, and full compliance with API600 standards, this valve ensures reliable shutoff, minimal flow resistance, and effortless operation for large-size pipelines. Widely adopted in chemical processing, petrochemical, marine, oil & gas, and water desalination industries, it balances durability, corrosion resistance, and operational efficiency for global industrial clients.

Key Features & Advantages

1.Premium CF8C Stainless Steel Construction

Manufactured from ASTM A351 CF8C stainless steel (equivalent to 316L stainless steel), featuring high molybdenum content that enhances corrosion resistance to chloride-containing media (e.g., seawater, brine) and harsh chemicals. The low carbon content (≤0.03%) prevents intergranular corrosion, ensuring structural integrity even after welding or long-term high-temperature exposure. Operating temperature range: -29℃ to 425℃ (-20°F to 800°F).

2.API600 Standard Compliance

Fully adheres to API 600 specifications for bolted bonnet steel gate valves, including heavy-wall body construction, full-port flow channels, and rigid design for petroleum refinery and critical industrial services. Complies with API 598 (inspection and testing) and ASME B16.34 (pressure-temperature ratings), ensuring dimensional accuracy, interchangeability, and leak-free performance (API 598 Class IV leakage rating). API certification guarantees compatibility with global industrial systems.

3.300LB (PN50) Pressure Class Rating

Rated for working pressures up to 5.0 MPa (725 psi) at ambient temperatures, with pressure-temperature ratings aligned to ASME B16.34 standards. The robust CF8C body and reinforced internal components handle medium-pressure cycling, making it suitable for chemical injection lines, process pipelines, and marine piping systems.

4.Bevel Gear Transmission System

Equipped with a high-precision bevel gear mechanism that reduces operating torque, enabling effortless operation of large-size valves (DN15-DN600) or high-torque applications. The self-locking gear design prevents valve stem rotation caused by media pressure or vibration, ensuring stable positioning. The modular gearbox features a dust-proof cover and corrosion-resistant housing, extending service life in harsh environments. Optional electric/pneumatic actuation is available for remote control.

5.Reliable Shutoff & Flow Efficiency

Features a wedge disc design (flexible wedge for temperature compensation) with precision-machined seating surfaces, optionally overlay-welded with Stellite for enhanced wear and corrosion resistance. The full-port flow channel minimizes pressure loss (Cv value optimized) when fully open, reducing energy consumption. The metal-to-metal seal meets API 598 Class IV leakage standards, ensuring tight shutoff in critical applications.

6.Flexible End Connections & Low Maintenance

End connections available in flanged (ASME B16.5), butt-welded (ASME B16.25), or socket-welded (ASME B16.11) configurations, adapting to diverse installation requirements. Bolted bonnet with backseat design allows in-line maintenance—inspection, repair, or replacement of internal components (stem, disc, seat)—without removing the valve from the pipeline, reducing downtime and costs.

Technical Specifications

Applications

The CF8C Bevel Gear 300LB Stainless Steel API600 Gate Valve is ideally suited for:

•Chemical processing plants (organic acids, alkalis, chemical solvents)

•Petrochemical and oil & gas downstream operations (refineries, product pipelines)

•Marine and offshore platforms (seawater systems, ballast lines)

•Water desalination plants (brine, reverse osmosis systems)

•Pharmaceutical and food processing (high-purity, corrosion-free media)

•Power generation (auxiliary steam lines, chemical feed systems)

Why Choose Our CF8C Bevel Gear API600 Gate Valve?

✅ Superior Corrosion Resistance: CF8C stainless steel withstands chloride, acid, and alkali media, extending service life in harsh environments.

✅ Effortless Operation: Bevel gear transmission reduces torque, making large-size valves easy to operate manually.

✅ API-Certified Reliability: Complies with API 600/ASME standards for consistent performance in critical applications.

✅ 300LB Pressure Stability: PN50 rating handles medium-pressure systems, ensuring safe operation.

✅ Flexible Installation: Multiple end connection options fit diverse piping requirements.

✅ Global Compatibility: International standards and certifications facilitate cross-border projects.

Order Information

•Minimum Order Quantity (MOQ): 1 Unit

•Lead Time: 10-25 Working Days (Standard Sizes); Customized Orders: 25-40 Working Days

•Payment Terms: T/T (30% Advance + 70% Against B/L Copy), L/C, Western Union

•Shipping: Sea Freight (FCL/LCL), Air Freight, Express (DHL/FedEx/UPS)

•Packaging: Anti-corrosion Coating + Wooden Case + Custom Labeling (Meets Export Standards)

•After-Sales Service: 12-Month Warranty, Technical Support, Spare Parts Supply

•Certifications Provided: Material Mill Test Certificate (EN 10204 3.1), API 598 Test Report, ISO 9001 Certificate

Contact our technical sales team for personalized quotes, 2D/3D drawings, or sample requests. We provide professional valve solutions tailored to your specific application needs.

What Is a CF8C Bevel Gear 300LB Stainless Steel API600 Gate Valve

A CF8C Bevel Gear 300LB Stainless Steel API600 Gate Valve is a corrosion resistant isolation valve designed for on off service in industrial pipelines. CF8C is a stabilized stainless steel casting material that offers excellent strength and resistance to oxidation at elevated temperatures. The valve uses a wedge gate that moves vertically to open or block the flow path with minimal resistance. A bevel gear operator provides mechanical advantage for smooth operation, and API600 construction ensures reliable performance.

Why the CF8C Bevel Gear 300LB Stainless Steel API600 Gate Valve Matters

This valve is important because it combines durable stainless steel construction with easy operation for larger or more demanding installations. CF8C material performs well in corrosive and moderately high temperature environments. The bevel gear mechanism reduces manual effort and allows controlled opening and closing. API600 design requirements ensure dependable sealing and structural integrity, helping protect pipelines and critical equipment from leakage and process interruptions.

Common Product Types by CF8C Bevel Gear 300LB Stainless Steel API600 Gate Valve

Common product types include rising stem outside screw and yoke gate valves, bolted bonnet gate valves, and flexible wedge gate valves. Solid wedge designs are used for stable service conditions, while flexible wedges improve seat contact during temperature changes. Flanged and butt welded end configurations are available. Optional features include locking devices, extended stems, and hardfaced seating surfaces for corrosive or abrasive applications.

Key Advantages of CF8C Bevel Gear 300LB Stainless Steel API600 Gate Valve

The valve offers excellent corrosion resistance, reliable bidirectional sealing, and low flow resistance when fully open. CF8C stainless steel provides strong mechanical properties and good thermal stability. The bevel gear operator delivers smoother operation and greater torque for large valves. API600 compliant construction ensures consistent quality, long service life, and simplified maintenance in demanding industrial environments.

CF8C Bevel Gear 300LB Stainless Steel API600 Gate Valve Machine Structure and Core Stations

Manufacturing begins with precision casting of the body, bonnet, wedge, and yoke components in CF8C stainless steel. Core stations include heat treatment, CNC machining of flange faces, guide slots, stem threads, and sealing surfaces. Hardfacing may be applied to seats and wedge faces. Assembly stations install the stem, wedge, packing, bonnet, and bevel gear operator. Final operations include pressure testing, cleaning, passivation, marking, and packaging.