🔹 Product Description

The Parker QR4003SK4PXXFSFIIF, identified by Parker part number 54010479-4, is a 100 PSIG pressure regulator from the Parker QR4003 Series. It is designed for precise pressure regulation in industrial fluid and pneumatic systems where controlled downstream pressure is required. The QR4003 family includes multiple configuration codes covering port arrangements, pressure ranges, connection options, and seal/material configurations. This specific 54010479-4 configuration should be matched to the existing regulator before replacement to ensure the correct pressure range, port configuration, and material compatibility.

🔹 Product Datasheet

*The exact connection, materials, dimensions, and pressure-control configuration should be confirmed from the regulator nameplate and Parker configuration code before installation.

🔹 Key Features

• Parker QR4003 Series pressure regulator
• 100 PSIG configuration
• Part number 54010479-4
• Model designation QR4003SK4PXXFSFIIF
• Designed for industrial pressure regulation
• Mechanical pressure-control design; no electrical power required
• Configuration-specific port and seal options
• Suitable for pneumatic and fluid-control applications where the specified configuration is compatible
• Useful for maintenance, replacement, and spare-parts inventory

🔹 Q&A

Q: What is the Parker 54010479-4?
A: It is a Parker QR4003 Series pressure regulator with model designation QR4003SK4PXXFSFIIF and a 100 PSIG configuration.

Q: What is the maximum pressure specification listed for this model?
A: The supplied product identification specifies a 100 PSIG pressure configuration. Confirm the exact inlet, outlet, and operating-pressure requirements for the application.

Q: Does this regulator require electrical power?
A: No. The QR4003 is a mechanical pressure regulator and does not normally require an electrical power supply.

Q: What does QR4003SK4PXXFSFIIF identify?
A: It is Parker’s configuration code for the regulator. Individual code elements can identify features such as body configuration, connection arrangement, pressure range, seals, and materials.

Q: Is 54010479-4 interchangeable with other QR4003 regulators?
A: Not automatically. QR4003 regulators are available in numerous configurations. The complete model code, pressure range, port configuration, materials, and seal specification should match the original unit.

Q: Where can this type of regulator be used?
A: It can be used in compatible industrial pneumatic or fluid-control systems requiring regulated pressure. Application suitability depends on the controlled medium, pressure, temperature, connection type, and materials.

Q: What should be checked before installation?
A: Verify the complete Parker part number, model code, pressure rating, port size and type, flow direction, sealing materials, operating temperature, and system medium before installation.

Q: Is 54010479-4 a current Parker part number?
A: It is a Parker identification associated with the QR4003 configuration. Current OEM availability should be verified before specifying it for a new installation.

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