WCB Large-Bore RF Electric Flanged API600 Globe Valve

Product Overview

The WCB Large-Bore RF Electric Flanged API600 Globe Valve is a high-pressure, high-flow cast steel globe valve designed in full compliance with API 600 standards. Constructed with ASTM A216 WCB carbon steel body, it is rated for Class 150~2500LB (PN20~PN420) high-pressure service, featuring a large-bore range of DN300~DN1600, ASME B16.5/B16.47 RF (Raised Face) flanged connections, and an integrated electric actuator for remote/automatic control. Operating within a temperature range of -29℃~425℃, it handles non-corrosive media such as water, steam, oil, and natural gas, making it widely suitable for high-pressure, high-flow systems in oil & gas, power generation, petrochemical, and long-distance pipeline industries.

Key Features & Advantages

1.WCB Cast Steel Body for High Pressure & Strength

The valve body is made of ASTM A216 WCB carbon steel with chemical composition: C≤0.25%, Mn 0.50~1.00%, Si 0.15~0.40%; mechanical properties: tensile strength 485~655MPa, yield strength ≥275MPa, elongation ≥20%. Designed with thickened wall per API 600 standards, it complies with ASME B16.34 pressure-temperature ratings, capable of withstanding high pressure and temperature cycles. Ideal for high-temperature, high-pressure applications below 425℃, WCB offers cost-effectiveness while maintaining structural integrity, making it the preferred choice for large-bore industrial valves in non-corrosive environments.

2.API 600 Compliance for Global Interchangeability

Fully adheres to API 600 (Bolted Bonnet Steel Valves for Petroleum and Natural Gas Industries), as well as ASME B16.34, ASME B16.10, and API 598 standards. Ensures global interchangeability and zero leakage (API 598 Class IV). Optional API 607 fire-safe design maintains sealing performance during extreme conditions such as fires, meeting the safety requirements of high-risk oil & gas applications.

3.Large-Bore Full-Port Design for Low Pressure Drop & High Flow

Covering a bore range of DN300 (12")~DN1600 (64"), the full-port design minimizes flow resistance and maximizes Cv value for bulk fluid transfer. Compared to standard-bore valves, it reduces pressure drop by approximately 30%, delivering significant energy savings for long-distance pipelines, boiler feedwater systems, and large-scale water treatment plants. For sizes above DN600, the valve body is further reinforced with thicker walls to withstand mechanical stress from large-bore operation, preventing deformation and leakage under high-pressure cycling.

4.ASME B16.5/B16.47 RF Flanges for Reliable Sealing

Flanged connections comply with ASME B16.5 (≤DN600) and ASME B16.47 Series A (≥DN650), featuring RF (Raised Face) sealing surface. Compatible with 304+graphite or soft iron+graphite gaskets, it ensures stable sealing against pressure fluctuations. The flanged design facilitates easy assembly, disassembly, and maintenance—critical for periodic inspection of large-bore valves.

5.Electric Actuator for Remote Automatic Control

Equipped with a heavy-duty electric actuator (AC220V/380V or DC24V) with output torque of 500~5000N·m (customizable for DN1600+), full-stroke time of 5~30 seconds, and support for on-off or proportional control (4-20mA signal). With IP67 protection class, it is dustproof and waterproof, integrated with overload protection, limit switches, and manual emergency operation—ideal for remote control in unattended or hazardous areas.

6.Metal-to-Metal Hard Seal for Tight & Durable Shutoff

Disc and seat are made of 13Cr stainless steel or Stellite 6 hard alloy overlay (HRC 48~62), offering wear resistance, high-temperature resistance, and scratch resistance. The metal-to-metal seal achieves API 598 Class IV leakage rating, ensuring tight shutoff and long service life even under high pressure differentials.

7.OS&Y Rising Stem for Easy In-Line Maintenance

Features OS&Y (Outside Screw and Yoke) rising stem design, keeping stem threads isolated from media to avoid corrosion and extend service life. The rising stem provides visual indication of valve position (open/closed). Equipped with bolted bonnet (for medium-low pressure) or pressure seal bonnet (for high pressure) and a backseat design, it allows in-line replacement of packing and internal component maintenance without removing the valve from the pipeline, reducing maintenance costs.

Technical Specifications

Applications

•Oil & Gas Industry: Long-Distance Pipelines, Refineries, Wellhead Manifolds, Natural Gas Transmission

•Power Generation: Thermal Power Plant Boiler Feedwater, Main Steam Pipes, Large-Scale Circulating Water Systems

•Petrochemical & Chemical Industry: Non-Corrosive Process Pipes, High-Pressure Reactor Feeding

•Municipal Engineering: Large-Scale Water Supply & Drainage, Wastewater Treatment, Central Heating Trunk Lines

•Industrial Boilers: High-Pressure Steam Supply, High-Flow Water Circulation

•Offshore Platforms: Non-Corrosive Media Pipes, Marine High-Pressure Pipes

Why Choose Us?

✅ API 600 High-Pressure Reliability: Complies with global high-pressure, large-bore standards for critical oil & gas/power applications

✅ Large-Bore Full-Port Low Resistance: DN300+ design minimizes pressure drop and energy consumption

✅ Remote Electric Intelligent Control: IP67 protection (explosion-proof optional) for unattended and hazardous areas

✅ Cost-Effective WCB Carbon Steel: Balances strength and temperature resistance at a lower cost than stainless steel

✅ RF Flange Easy Installation & Maintenance: Standard flange interchangeability and in-line maintenance reduce costs

✅ Globally Proven Performance: Trusted in large-scale pipeline, power, and petrochemical projects worldwide

Order Information

•Minimum Order Quantity (MOQ): 1 Unit

•Lead Time: 30~60 Working Days (Standard Large-Bore Sizes); 60~90 Working Days (Customized Orders)

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

•Shipping Method: Sea Freight (FCL Only for Large Sizes), Special Heavy-Duty Packaging

•Packaging: Anti-Corrosion Coating + Wooden Case + Steel Frame + Export Labeling

•After-Sales Service: 12-Month Warranty, Technical Support, Spare Parts Supply, On-Site Installation Guidance

•Certificates Provided: Material Test Certificate (EN 10204 3.1), API 598 Test Report, ISO 9001 Certificate, API 600 Compliance Certificate

Contact our technical sales team for custom quotes, 2D/3D drawings, WCB material certificates, and actuator specifications—we provide tailored valve solutions for your high-pressure, high-flow systems.

What Is a WCB Large-Bore RF Electric Flanged API600 Globe Valve

A WCB Large-Bore RF Electric Flanged API600 Globe Valve is an automated flow control valve designed for large diameter industrial pipelines. The body is made from WCB cast carbon steel, which provides excellent strength and durability under demanding conditions. RF, or raised face, flanges create a reliable bolted connection with secure gasket sealing. An electric actuator drives the stem and disc to regulate or stop flow, while API600 construction ensures robust and dependable valve performance.

Why the WCB Large-Bore RF Electric Flanged API600 Globe Valve Matters

This valve is important because it combines precise flow control with remote electric operation in large piping systems. The electric actuator allows centralized control and reduces manual effort, especially where valves are difficult to access. WCB carbon steel withstands pressure, temperature changes, and mechanical stress. The raised face flange design improves sealing reliability, and the heavy duty construction supports safe and stable operation in critical industrial processes.

Common Product Types by WCB Large-Bore RF Electric Flanged API600 Globe Valve

Common product types include standard pattern globe valves for general throttling, angle globe valves for directional changes, and Y pattern globe valves for lower pressure loss. Electric actuators may be configured for on off service or modulating control. Optional features include manual override, torque protection, position indicators, and intelligent controllers. Different trim materials are available for erosive, corrosive, or high temperature applications.

Key Advantages of WCB Large-Bore RF Electric Flanged API600 Globe Valve

The valve offers accurate flow regulation, dependable shutoff, and convenient remote automation. Electric actuation provides consistent operation and easy integration with plant control systems. WCB cast steel delivers high mechanical strength and long service life. Raised face flanges ensure secure sealing and simplify maintenance. The robust globe valve design supports frequent operation and reliable performance in demanding large bore installations.

WCB Large-Bore RF Electric Flanged API600 Globe Valve Machine Structure and Core Stations

Manufacturing begins with casting the body, bonnet, disc, and yoke from WCB carbon steel. Core stations include heat treatment, CNC machining of flange faces, seat surfaces, and stem threads. Assembly stations install the disc, stem, packing, bonnet, and electric actuator with control components. Final operations include seat lapping, pressure testing, actuator calibration, coating, marking, and packaging to ensure accurate control and leak tight sealing.