What parameters are listed on the nameplate of an air compressor?

The primary function of a nameplate

The air compressor nameplate is typically affixed in a prominent location on the unit and provides essential information about the equipment’s identity, performance specifications, and safe operating conditions. Reading the nameplate enables purchasing personnel to verify that the equipment meets the required air‑supply needs, while also helping maintenance staff determine the scope of component replacement, routine servicing, and shutdown‑protection procedures.

Common Basic Parameters

• Product Name and Model:Used to differentiate equipment categories and series, facilitating repair requests, parts inquiries, and the matching of technical documentation.
• Rated displacement:It indicates the equipment’s gas supply capacity under rated operating conditions and is a critical parameter for determining whether it can meet the demands of gas‑using equipment.
• Rated discharge pressure:It indicates the operating pressure range that the equipment is designed to withstand, and should be given particular attention during equipment selection and piping system design.
• Motor power:It reflects the rated output power of the drive motor and is relevant to power supply capacity, energy consumption assessment, and maintenance decision-making.
• Voltage, Frequency, and Number of Phases:Used to verify that on-site power supply conditions are compatible, thereby preventing wiring errors or equipment startup failures.

Operating and Safety-Related Parameters

• Rotational speed:Commonly found on the nameplates of motors or machinery, it can be used to assess operating conditions, transmission configurations, and as a reference for maintenance intervals.
• Noise level:Some nameplates specify the sound power level or sound pressure level, facilitating the assessment of the installation environment and noise‑reduction requirements.
• Weight:It provides a reference for lifting, handling, foundation anchoring, and data center layout.
• Working medium and lubrication method:This document specifies the required properties of the equipment’s compressed air and its lubrication system, facilitating the selection of an appropriate maintenance approach.
• Protection Class and Insulation Class:It is closely related to the motor component and can help determine the environmental conditions suitable for the equipment.

Identifying and Managing Information

• Manufacturing date or factory serial number:Used to create equipment records, trace production batches, and schedule maintenance plans.
• Manufacturer Information:Including the name, address, or contact information to facilitate access to the instruction manual, spare parts, and safety instructions.
• Applicable standards or certification marks:Some products bear relevant standard symbols to indicate the regulatory requirements that the equipment complies with.
• Gas storage volume:For units equipped with a gas storage tank, the nameplate may indicate the tank’s capacity, facilitating an assessment of its buffering capability and footprint.

Precautions When Reading Nameplates

When inspecting the nameplate, first verify that the lettering is clear and the plate is securely fastened, and avoid making judgments based solely on unclear or ambiguous information. If the nameplate is missing, worn, or covered with paint, confirm the equipment’s specifications by consulting the accompanying documentation, factory records, or professional testing. For critical parameters such as pressure, power, and supply conditions, rely exclusively on the equipment’s nameplate and the accompanying technical documents; do not alter these values arbitrarily or operate beyond their specified limits.