Products

Bellows globe valve

    Bellows globe valve

    The Bellows Globe Valve is a high-performance industrial valve designed for leak-tight sealing, precise flow control, and reliable operation in demanding pipeline systems. Featuring a metal bellows seal, it prevents external leakage, making it ideal for toxic, corrosive, or high-temperature fluids in chemical, petrochemical, power generation, and oil & gas applications. Its robust construction, smooth operation, and compliance with API and ASME standards ensure long-term durability, enhanced safety, and efficient system performance.
  • Share:
  • Contact us Inquiry
  • WhatsApp:+8618953100555

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

Introduction

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.


Certification Standards

1. Compliance Overview

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

2. Benefits of Certified Valves

  • 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 Services

Technical support is essential for optimizing valve performance and ensuring safe operation.

1. Pre-Sales Support

  • 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

2. After-Sales Support

  • Installation guidance and troubleshooting assistance

  • Maintenance schedules and preventive care recommendations

  • Access to spare parts and refurbishment services

3. Training Programs

  • On-site or virtual training for operation, maintenance, and safety protocols

  • Operator manuals and safety datasheets for long-term operational reliability


Bellows globe valve

Packaging and Shipping

Proper packaging ensures the valve arrives safely and maintains quality during transport.

1. Packaging Standards

  • 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

2. Transportation Guidelines

  • 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

3. Storage Recommendations

  • Maintain valves in a clean, temperature-controlled environment

  • Inspect periodically for moisture, corrosion, or mechanical damage

  • Keep documentation for installation, maintenance, and warranty verification


Installation Guide

Correct installation ensures long-term performance, leak-tight operation, and minimal maintenance.

1. Pre-Installation Checks

  • 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

2. Installation Steps

  1. Align the valve with the pipeline flow direction

  2. Ensure sufficient straight pipe lengths upstream (5–10 diameters) and downstream (3–5 diameters)

  3. Install using flanged connections or threaded fittings per manufacturer specifications

  4. Tighten bolts evenly in a cross-pattern sequence

  5. Operate valve to check smooth movement and leak-tight sealing

3. Installation Tips

  • Avoid misalignment, which can damage the bellows or seat

  • Use lifting equipment for valves over 50 kg

  • Verify actuator compatibility for automated systems

4. Installation Diagram

ComponentDescription
BodyForged or cast steel valve body
BellowsMetal seal ensuring leak-tight operation
Disc/SeatControls fluid flow; compatible with corrosive media
StemConnects actuator/handwheel to disc
Actuator/HandwheelManual or automated operation
Flanges/ThreadsConnects valve to pipeline

Diagram Note: Arrow on valve body indicates flow direction.


Advantages of Bellows Globe Valve

FeatureBenefit
Leak-Tight SealingPrevents environmental and toxic fluid leaks
Corrosion ResistanceSuitable for chemical and petrochemical applications
High-Temperature CapabilityOperates reliably under extreme heat
Precise Flow ControlAllows throttling and accurate flow adjustment
Compliance StandardsMeets API, ASME, ISO, and CE regulations

Conclusion

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.

ONLINE MESSAGE

Please fill in a valid email address
Captcha Can not be empty

RELATED PRODUCTS

No search results found!

This website uses cookies to ensure you get the best experience on our website.

Accept Reject