Shop Explosion isolation proportional directly operated pressure-relief valve | Partsdic®

 

The Explosion Isolation Proportional Directly Operated Pressure-Relief Valve is primarily used to control and relieve excess pressure in industrial systems where explosive gases, vapors, or dust may be present.

It plays a crucial role in preventing catastrophic failures and ensuring the safety of processes and personnel.

Materials and Construction:
These valves are constructed from robust and corrosion-resistant materials to withstand harsh industrial conditions. Materials commonly used include stainless steel, brass, and high-strength alloys. The choice of material depends on the specific application and the nature of the substances being handled.

Valve Type:
This type of valve is typically a proportional pressure-relief valve, which means it can modulate its opening to maintain a precise pressure within a system. The proportional control capability is crucial in applications where maintaining a specific pressure setpoint is critical.

Explosion-Proof Design:
Safety is paramount in explosive environments. Explosion isolation valves should comply with rigorous safety standards and certifications, such as ATEX or IECEx, to ensure they can safely operate in potentially explosive atmospheres.

Flow Capacity:
The flow capacity of the valve should be specified to meet the requirements of the system.

Flow capacity is typically measured in cubic meters per hour (m³/h) or gallons per minute (GPM), and it should align with the maximum expected flow in the system.

Pressure Rating:
The valve should have a specified pressure rating to ensure it can safely relieve pressure within the system. Pressure ratings are typically expressed in bars or psi and should be suitable for the maximum pressure conditions anticipated.

Temperature Range:
The valve should operate within a specified temperature range to maintain its integrity and performance. Temperature limits should be clearly defined for both high and low-temperature conditions.

Proportional Control Parameters:
This valve's proportional control functionality should be detailed in the specification. This includes parameters such as proportional band, integral time, and derivative time, which determine how the valve modulates to maintain the desired pressure setpoint.

 

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