Product Overview
The API 600 Class 150LB WCB Cast Steel ANSI Flanged Globe Valve is a standard industrial throttling and isolation valve designed in full compliance with API 600, ASME B16.34 and ANSI American standards. This 150LB low-pressure globe valve adopts high-quality ASTM A216 WCB cast carbon steel body and standard ANSI RF flanged connection, featuring stable mechanical performance, excellent medium throttling ability and reliable sealing effect.
Different from ordinary industrial valves, this API 600 globe valve adopts a standard OS&Y rising stem structure, with clear opening and closing indication and convenient on-site operation. Class 150LB pressure grade is suitable for conventional low-pressure industrial pipeline working conditions. The ANSI flanged end ensures quick installation, disassembly and maintenance, effectively reducing pipeline maintenance costs. Widely used in petrochemical, oil & gas, power plant, water treatment and heating pipeline systems, it is the most cost-effective American standard flow control valve for general industrial service.
Key Features & Advantages
1. Strict API 600 & ANSI Standard Compliance
Manufactured and tested in accordance with API 600 steel valve specifications and ANSI American industrial standards, fully complying with ASME B16.10 face-to-face dimension and ASME B16.5 flange standards. All technical parameters meet international industrial project acceptance requirements, suitable for global American standard pipeline matching and overseas engineering bidding projects.
2. Premium WCB Cast Steel Construction
Adopts ASTM A216 WCB carbon steel material with stable mechanical properties, good high-temperature resistance and excellent fluid scouring resistance. The working temperature ranges from -29℃ to 425℃, perfectly adapting to conventional media such as steam, water, crude oil and natural gas. The integral cast body has compact structure, no internal defects and long service life.
3. Class 150LB Standard Low-Pressure Design
Customized for ANSI Class 150LB (PN20) conventional pressure working conditions, with optimized valve body wall thickness and internal flow channel structure. It maintains stable and safe operation under long-term low-pressure cyclic load, avoiding excessive self-weight and cost waste of high-pressure valves, achieving high cost performance for general industrial pipelines.
4. ANSI RF Flanged Connection for Easy Maintenance
Equipped with standard ANSI B16.5 Raised Face (RF) flanged ends, with precise sealing surface processing and standard installation dimensions. The flanged connection features simple installation, good vibration resistance and convenient later disassembly and maintenance, which is very suitable for conventional industrial pipelines requiring regular inspection and overhaul.
5. OS&Y Rising Stem & Precise Throttling
Adopts Outside Screw and Yoke rising stem structure, which isolates the thread from the medium to prevent corrosion and ensure flexible opening and closing. The unique curved flow channel design enables the globe valve to achieve accurate flow and pressure regulation, solving the problem of unstable medium flow in conventional pipelines.
6. API 598 Zero Leakage Performance
The valve disc and sealing seat are precisely ground and can be equipped with Stellite alloy overlay as required. It passes strict API 598 hydrostatic test and seat leakage test, achieving bubble-tight zero leakage, effectively preventing medium loss and pipeline safety hazards.
Technical Specifications
| Item | Specification |
| Product Name | API 600 Class 150LB WCB Cast Steel ANSI Flanged Globe Valve |
| Design Standard | API 600, ASME B16.34, ASME B16.10, ASME B16.5, API 598 |
| Pressure Class | Class 150LB (PN20) |
| Body Material | ASTM A216 WCB Cast Carbon Steel |
| Trim Material | 13Cr / Stellite 6 Hard Alloy (Optional) |
| Connection Type | ANSI B16.5 RF Flanged |
| Structure Type | OS&Y Rising Stem Globe Pattern |
| Size Range | DN15 ~ DN300 (NPS 1/2" ~ 12") |
| Working Temperature | -29℃ ~ 425℃ |
| Operation Mode | Handwheel, Gear Box, Electric, Pneumatic |
| Leakage Standard | API 598 Class VI Zero Leakage |
| Applicable Media | Steam, Water, Crude Oil, Natural Gas, Industrial Process Fluid |
Applications
•Petrochemical & Refinery: Conventional process pipelines, oil product transmission systems, chemical medium throttling and isolation pipelines
•Oil & Gas Industry: Low-pressure gas gathering pipelines, crude oil auxiliary delivery pipelines, wellhead auxiliary systems
•Power Generation: Thermal power plant low-pressure steam pipelines, boiler water supply auxiliary systems, heating circulation pipelines
•Water Treatment & Municipal Engineering: Industrial water supply and drainage pipelines, municipal heating systems, circulating water pipeline control
•General Industrial Facilities: Factory compressed air pipelines, medium and low-pressure fluid regulation and cut-off systems
Why Choose Our API 600 150LB WCB Flanged Globe Valve?
✅ Genuine API 600 & ANSI Standard — Fully compliant with American industrial standards, compatible with global ANSI pipeline systems, suitable for international projects.
✅ High-Quality WCB Cast Steel — Stable high-temperature performance, strong scouring resistance, durable for long-term industrial cyclic operation.
✅ANSI RF Flanged Easy Installation — Standard flange size, convenient installation and maintenance, low later operation cost.
✅ Accurate Throttling & Zero Leakage — Professional globe valve throttling performance, API 598 certified bubble-tight shutoff.
✅ Cost-Effective 150LB Design — Optimized for conventional low-pressure working conditions, high cost performance without redundant performance waste.
Order & Certification Information
MOQ: 1 Unit
Lead Time: 15-30 working days for standard sizes
Certificates: EN10204 3.1 Material Certificate, API 598 Test Report, ISO 9001 Certificate
Packing: Anti-rust treatment + Standard export wooden case
Warranty: 18-month quality warranty, lifelong technical support
Contact Us for customized sizes, actuator types and bulk quotation of API 600 Class 150LB WCB flanged globe valves.

What Is an API Globe Valve
An API Globe Valve is a linear motion valve designed to regulate or isolate the flow of liquids, gases, steam, and other process media in industrial piping systems. It uses a movable disc and seat arrangement to provide precise flow control and reliable shutoff. Manufactured in accordance with API requirements, the valve offers dependable performance and structural integrity. API globe valves are widely used in oil and gas, petrochemical, power generation, and chemical processing applications where accurate flow regulation is essential.
Why the API Globe Valve Matters
An API Globe Valve is important because it provides excellent throttling capability and dependable sealing under demanding operating conditions. API standards help ensure consistent quality, material reliability, and operational safety. The valve allows operators to control flow accurately and maintain stable process conditions. Its robust construction and durable internal components help protect equipment and support long term performance in critical industrial systems handling high pressure and elevated temperatures.
Common Product Types by API Globe Valve
Common product types include standard pattern globe valves, angle globe valves, and Y pattern globe valves. Bolted bonnet, welded bonnet, and pressure seal bonnet configurations are available for different service requirements. Manual, electric, pneumatic, and gear operated versions can be selected according to operational needs. Various body materials, trim designs, and hardfaced seating surfaces are available to accommodate corrosive media, high temperatures, and severe service environments.
Key Advantages of API Globe Valve
The valve offers precise flow regulation, reliable shutoff, and excellent resistance to pressure and temperature variations. Its internal design provides stable control and dependable sealing performance. API compliant construction contributes to durability and long service life. Multiple actuation options allow flexibility in process control systems. With proper material selection, the valve performs effectively in demanding industrial applications while reducing maintenance requirements.
API Globe Valve Machine Structure and Core Stations
Manufacturing begins with casting or forging the body, bonnet, disc, and stem components from selected materials. Core stations include heat treatment, precision CNC machining of seat surfaces, stem threads, flow passages, and connection ends. Hardfacing processes may be applied to improve wear resistance. Assembly stations install the disc, stem, packing, bonnet, and operating mechanism. Final operations include pressure testing, surface treatment, cleaning, marking, and packaging to ensure reliable sealing and dimensional accuracy.
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