Features
1.The product stucture is reasonable,reliable sealing,excellent perfomance and atractive appearance;
2.The sealing surface sufacing Co cemented carbide,wea-resistant,corosion-resistart,abrasian resistance and lang service life;
3.The stem is quenched and surface nitidng treatment,good corosion and aobrasion resistance
4.Double seaing,more reliable perfomance;
5.The stem down positon indicating a more intuitive;
6.Part material,flange and but weld size under actual warking canditions or user requrements reasonable matching,to meet a variely d project needs.
Technical data
公称压力 PN(MPa) Nominal Pressure | 密封试验压力 (MPa)Sealing testing pressure | 壳体试验压力 (MPa)Sheil testing pressure | 适用温度℃ Suitable temperature | 适用介质 Suitable medium |
1.6 |
2.4 |
1.76 |
-20-350 |
水、蒸汽 油品等 Water, steam, oil etc. |
2.5 |
3.75 |
2.75 | ||
4.0 |
6.0 |
4.4 |
Meterial of main parts
名称Pat | 材质Material |
阀体Body |
GS-C25、CF8、CF3 |
阀瓣Disc |
2Cr13、F304、F316 |
轴销Axle pin |
F304、F316 |
波纹管组件 |
F304、F316L |
阀盖Bonnet |
GS-C25、CF8、CF3 |
填料Packing | 柔性石墨Flexible graphite、PTFE |
压套Gland |
25#、F304、F316 |
定位片 Positioning pieces |
25#、F304、F316 |
阀杆螺母 Stem nut | 铜合金Copper alloy ZQA19-4 |
手轮Hand wheel | 碳钢Carbon steel |
并帽And cap |
25# |
油杯Oil Cup | 黄铜Brass |
六角螺母 Hex nuts |
ASTMA1932H、A193-8、A193-8M |
双头螺栓 Stud bolt |
ASTMA193 B7、A193-B8、A193-B8M |
垫片Gasket | 柔性石墨+不锈钢、PTFE Flexible graphite+Stainless steel |
阀杆Stem |
2Cr13、F304、F316 |
Bellows Globe valve: Certification, Technical Support, Packaging, and Installation Guide
The Bellows Globe Valve is a specialized industrial valve designed for precise flow control and leak-tight sealing in critical pipeline systems. Its unique metal bellows design ensures zero external leakage, making it ideal for handling toxic, corrosive, or high-temperature fluids. Widely used in chemical, petrochemical, power generation, and oil & gas industries, the bellows globe valve combines durability, safety, and operational efficiency.
This guide covers certification standards, technical support, packaging details, and installation instructions, providing a complete reference for engineers, operators, and procurement teams.
Bellows globe valves are manufactured in compliance with international and industry-specific standards, ensuring consistent quality and performance:
API (American Petroleum Institute) standards for pressure and performance
ASME B16.34 for pressure-temperature ratings and construction
ISO 9001 for quality management systems
CE certification for European market compliance
Assurance of material integrity and dimensional accuracy
Verified pressure and temperature ratings suitable for industrial applications
Compliance with safety and environmental regulations
Simplified procurement approval in regulated industries
Technical support is essential for optimizing valve performance and ensuring safe operation.
Valve selection guidance based on fluid type, pressure, temperature, and flow rate
Material and seal recommendations for corrosive or toxic media
Customized engineering drawings and technical datasheets
Installation guidance and troubleshooting assistance
Maintenance schedules and preventive care recommendations
Access to spare parts and refurbishment services
On-site or virtual training for operation, maintenance, and safety protocols
Operator manuals and safety datasheets for long-term operational reliability

Proper packaging ensures the valve arrives safely and maintains quality during transport.
Wooden crates or reinforced boxes for heavy or large valves
Protective caps on flanges and stems to prevent mechanical damage
Anti-corrosion wrapping or desiccant packs for metal components
Lift valves using designated lifting points or slings
Avoid dropping, rolling, or striking valves during transit
Store valves upright in dry, ventilated areas to prevent corrosion
Maintain valves in a clean, temperature-controlled environment
Inspect periodically for moisture, corrosion, or mechanical damage
Keep documentation for installation, maintenance, and warranty verification
Correct installation ensures long-term performance, leak-tight operation, and minimal maintenance.
Verify valve type, size, and pressure rating against system requirements
Inspect for transportation damage, debris, or foreign materials
Confirm proper orientation with flow direction arrow on the valve body
Align the valve with the pipeline flow direction
Ensure sufficient straight pipe lengths upstream (5–10 diameters) and downstream (3–5 diameters)
Install using flanged connections or threaded fittings per manufacturer specifications
Tighten bolts evenly in a cross-pattern sequence
Operate valve to check smooth movement and leak-tight sealing
Avoid misalignment, which can damage the bellows or seat
Use lifting equipment for valves over 50 kg
Verify actuator compatibility for automated systems
| Component | Description |
|---|---|
| Body | Forged or cast steel valve body |
| Bellows | Metal seal ensuring leak-tight operation |
| Disc/Seat | Controls fluid flow; compatible with corrosive media |
| Stem | Connects actuator/handwheel to disc |
| Actuator/Handwheel | Manual or automated operation |
| Flanges/Threads | Connects valve to pipeline |
Diagram Note: Arrow on valve body indicates flow direction.
| Feature | Benefit |
|---|---|
| Leak-Tight Sealing | Prevents environmental and toxic fluid leaks |
| Corrosion Resistance | Suitable for chemical and petrochemical applications |
| High-Temperature Capability | Operates reliably under extreme heat |
| Precise Flow Control | Allows throttling and accurate flow adjustment |
| Compliance Standards | Meets API, ASME, ISO, and CE regulations |
The Bellows Globe Valve is a high-performance, reliable solution for industrial pipelines handling toxic, corrosive, or high-temperature fluids. Compliance with API, ASME, ISO, and CE standards ensures quality and safety. Proper installation, packaging, and handling maximize valve longevity and system efficiency.
Supported by technical services, maintenance guidance, and training, bellows globe valves provide accurate flow control, leak-tight operation, and long-term durability. These features make them ideal for chemical, petrochemical, power generation, and oil & gas industries, offering a trusted and efficient solution for critical fluid systems.
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