10 Things to Know About Operating Valves in Industrial ...

Operating valves in industrial applications requires a deep understanding of their function and characteristics to ensure optimal performance. Valves regulate, stop, or modify the flow of fluids, relieve excess pressure, and ensure safe operation of the piping systems. Various designs and sizes adapt to different industrial needs, making proper selection crucial. Poor valve selection can negatively impact industrial processes, so engineers carefully consider process variables, fluid properties, and environmental conditions during selection.

Check now

Good industrial valves should ensure reliable fluid service by regulating flow rates, preventing leakages, backflows, and emissions, and quickly responding to pressure and temperature changes. The materials used in valve construction must resist corrosion from both the fluids they handle and their immediate environment.

Knowing how different valves function is critical for selecting and customizing flow control solutions across various industries. The selection process is intricate, with numerous considerations to minimize the total cost of ownership for industrial valves.

Key Factors in Operating Industrial Valves

Compatibility of Valve Materials with Service Media

Industrial pipelines carry fluids of differing physical states—liquids, gases, or semi-solids like slurries—with varied chemical properties. Proper valve material selection is essential. Materials must resist erosive actions of fluids; abrasive fluids can cause early wear of internal components like seals and closing mechanisms.

For applications involving corrosive or extreme service media—such as industrial chemicals, viscous fluids, or cryogenics—stainless steel, molybdenum, and chromium alloys are preferred. These materials, along with metallic or chemically resistant seals, offer excellent corrosion resistance and manage extreme temperatures and pressures well. Consulting with a valve engineering expert helps ensure compatibility and proper configuration.

Link to BSTV

Temperature and Pressure Classifications

Pipelines operate within specific temperature and pressure ranges, and an industrial valve’s performance should be steady within these limits. High temperatures and pressures can weaken valve materials, risking valve shell rupture.

Selecting a valve requires confirming that its rating matches the pipeline's operating conditions. The materials and wall thicknesses should be robust enough to handle maximum pressures and temperatures without repeated failure. Valves must have a safety margin for emergencies that push fluid conditions beyond design limits. Industry standards like ASME B16.34 outline the permissible pressure and temperature ratings for different materials.

Contact us to discuss your requirements for Gate Valve. Our experienced sales team can help identify the best options for your needs.

Flow Characteristics

The flow characteristic describes how the valve’s flow rate changes with valve position, essential for maintaining system performance. Engineers must choose the right type—such as linear, equal percentage, or quick opening—based on the system’s flow requirements.

Valve Operation Mechanism

Valves can be manually operated, or automated using pneumatic, hydraulic, or electric actuators. The choice of operation mechanism should align with the control requirements and integration capabilities of the existing systems.

Maintenance and Accessibility

Regular maintenance ensures longevity and efficiency of valves. Select valves that are accessible and easy to maintain, with available replacement parts and clear maintenance guidelines.

Economical Considerations

Cost is always a factor. While it might be tempting to choose the least expensive option, evaluating the total cost of ownership, which includes installation, operation, maintenance, and potential downtime, will provide a more comprehensive cost analysis.

Size and Dimension Considerations

Correct sizing is vital for the effectiveness and durability of a valve. Valves that are too large or too small can cause operational inefficiencies, so accurate sizing according to pipe dimensions and flow requirements is crucial.

Compliance with Standards and Regulations

Ensure that valves meet industry standards and regulations like API, ASME, and ISO. Compliance not only guarantees quality and safety but also facilitates smoother inspections and approvals.

Environmental Impact

Select valves designed to minimize environmental impact, such as those reducing emissions and leakages. Consider the environmental policies and sustainability measures that align with your company’s values and regulations.

Training and Expertise

Ensuring that your team is well-trained in valve operation and maintenance can prevent operational issues and extend the lifespan of your valves. Partner with suppliers who offer training and support to maximize the benefits of your investment.