KAIRAK TXV Base Valve – 1/4 Ton R404A OEM Replacement

OEM Part Details

• OEM Number: PD-120-948
• OEM Status: VERIFIED
• MPN: PD-120-948
• SKU: PD-120-948
• Part Type: TXV Base Valve

Product Overview

OEM Part Details OEM Part Number: PD-120-948 OEM Status: VERIFIED Part Type: TXV Base Valve Refrigerant Application: R404A Rated Capacity Reference: 1/4 Ton Product Overview The PD-120-948 TXV Base Valve is a refrigeration control component identified for R404A commercial refrigeration equipment with a 1/4 ton capacity reference. As part of the thermostatic expansion valve assembly, this valve base is associated with refrigerant metering and controlled refrigerant movement through the refrigeration system. Correct refrigerant control is important because the equipment depends on a balanced flow of refrigerant to support stable operating conditions and dependable cabinet temperature response. When a TXV-related component is being replaced, accurate part identification matters as much as the repair itself. The PD-120-948 number provides the primary ordering reference for this OEM-identified valve base. Comparing the removed component, its connection arrangement, and the equipment data plate before ordering can help reduce a wrong-part order. Because model-specific fitment is not supplied here, equipment model and serial information should be confirmed before purchase. This replacement is intended for commercial refrigeration service where the original component and equipment information support use of PD-120-948. It is not presented as a universal valve or as a substitute for a different refrigerant, capacity range, or valve arrangement.

Product Function

Product Function A TXV base valve supports the refrigerant-control function of a thermostatic expansion valve assembly. In commercial refrigeration equipment, the valve assembly is used to meter refrigerant into the evaporator-side portion of the refrigeration system according to operating conditions. The PD-120-948 TXV Base Valve is identified for R404A service and carries a 1/4 ton capacity reference, making those details important ordering checks. Its role is not simply to provide a physical connection point. The valve base works with the related TXV assembly and refrigerant connections to support controlled refrigerant flow. If the original component is damaged, incorrectly selected, or no longer suitable for service, the refrigeration system may require diagnosis by a qualified technician. The OEM number, original component configuration, and equipment information should be reviewed together before selecting a replacement.

Why Choose a Genuine OEM Replacement?

Why Choose a Genuine OEM Replacement? The verified OEM number PD-120-948 gives technicians and buyers a specific reference when replacing the original TXV base valve. Using the manufacturer part number helps keep the order focused on the intended component rather than relying on a broad description alone. This is especially useful for refrigeration control parts, where refrigerant application, valve arrangement, and equipment configuration can affect selection. Compare PD-120-948 with the removed component and confirm the equipment model and serial number before ordering.

How This Part Works

How This Part Works A thermostatic expansion valve assembly is part of the refrigeration system's refrigerant-metering process. Refrigerant flow must be controlled as it moves toward the evaporator-side circuit, where it supports the equipment's cooling operation. The TXV base valve is a component within that valve arrangement and provides the valve-specific connection and control location associated with the assembly. Proper operation depends on the complete refrigeration circuit, not on one component alone. Refrigerant charge, related sensing components, valve connections, and other temperature-control parts can all affect system response. For that reason, unusual cabinet temperature behavior or suspected valve concerns should be evaluated as part of a complete refrigeration diagnosis. The available product identification supports PD-120-948 for R404A service with a 1/4 ton capacity reference; it does not establish fitment for every commercial refrigeration model.

Technician Service Tip

Technician Service Tip Before replacing a TXV-related component, compare the removed part with PD-120-948 and document the original connection arrangement. Confirm the equipment data plate, refrigerant application, and applicable capacity reference. Refrigeration circuit service should be performed by qualified personnel using appropriate service procedures.

Common Failure Symptoms

• Unstable cabinet temperature response may indicate that the refrigeration control system should be inspected.
• A cooler or freezer that does not respond as expected to changing load conditions can indicate a refrigerant-control concern.
• Repeated temperature-related service calls may warrant evaluation of the valve assembly and related refrigeration components.
• Visible damage, corrosion, or deformation at the original valve base should be inspected before a replacement is selected.
• Damaged or compromised refrigerant connections near the valve assembly can indicate a need for qualified refrigeration service.
• A suspected restriction or irregular refrigerant-flow condition may require diagnosis of the TXV assembly and the complete circuit.
• Temperature control concerns after other refrigeration components have been evaluated may indicate that related valve components should be inspected.
• An original component that does not match the expected R404A application or 1/4 ton capacity reference should be reviewed before replacement.

Commercial Applications

Commercial Applications PD-120-948 is identified for use in commercial refrigeration equipment where the original component, refrigerant application, and equipment information support this TXV base valve. Typical buyers include commercial refrigeration service companies, foodservice maintenance teams, restaurant operators, and facilities responsible for maintaining temperature-controlled equipment. The available information confirms commercial refrigeration use but does not provide a verified equipment-model list. Buyers should therefore confirm the equipment model and serial number, compare the removed valve component, and verify the R404A and 1/4 ton references before ordering. This approach helps keep a refrigeration repair focused on the correct component rather than an assumed fitment.

Before You Order

• Match OEM part number PD-120-948 to the original component and applicable equipment documentation.
• Confirm the equipment model and serial number from the data plate before placing the order.
• Verify that the equipment application uses R404A refrigerant.
• Confirm that the original component carries the applicable 1/4 ton capacity reference.
• Compare the removed TXV base valve with the product image and product description.
• Review the original connection arrangement and mounting configuration for visible differences.
• Inspect related refrigerant connections and valve-assembly components for damage or service concerns.
• Use qualified refrigeration service personnel when work involves the sealed refrigeration circuit.

Related Components

• TXV sensing bulb or related sensing component: Inspect its condition and placement when the equipment configuration uses one, since sensing input is associated with valve response.
• Capillary tubing: Review visible routing and condition where applicable to the valve assembly, looking for damage or improper positioning.
• Refrigerant connections at the valve assembly: Inspect connection points for physical damage or signs that qualified service may be needed.
• Related temperature-control components: Evaluate associated controls during diagnosis when cabinet temperature response remains inconsistent.

Frequently Asked Questions

What is OEM part number PD-120-948?

PD-120-948 is the verified OEM number for this TXV Base Valve. It is identified for R404A commercial refrigeration equipment with a 1/4 ton capacity reference.

What does a TXV base valve do?

A TXV base valve is part of a thermostatic expansion valve arrangement associated with controlled refrigerant metering in a commercial refrigeration system.

Is PD-120-948 identified for R404A refrigerant?

Yes. The available product identification lists R404A as the refrigerant application for PD-120-948.

What capacity reference is listed for this TXV base valve?

This product is identified with a 1/4 ton capacity reference. Confirm that reference against the original component and equipment information before ordering.

Does this valve fit every commercial refrigeration unit?

No. A complete model-specific fitment list is not supplied. Confirm the equipment model and serial number, compare the original component, and match OEM number PD-120-948 before purchase.

What should be inspected when replacing a TXV-related component?

Review the original valve configuration, refrigerant connections, related sensing components where applicable, and associated temperature-control parts. Sealed-system work should be handled by qualified refrigeration personnel.