THERMOSTATIC EXPANSION VALVE ORIFICE ASSEMBLY

Description

The Thermostatic Expansion Valve Orifice Assembly provides a complete internal metering renewal solution for modular thermostatic expansion valves (TXVs). Engineered to fit inside high-capacity valve housings, this assembly includes the primary spring-loaded valve cage insert, precision-machined metering pin, and interchangeable orifice cartridges. Constructed with a corrosion-resistant forged metal alloy body and high-grade stainless steel internal components, it allows service technicians to recalibrate cooling tonnage or replace worn internal metering mechanisms without replacing the complete valve body.

Technical Specifications

Key Features

• Modular Metering Mechanism: Allows easy swapping of internal orifice cartridges to match exact evaporator thermal loads.

• Heavy-Duty Forged Alloy Body: Built from high-strength metal alloy to resist extreme system pressures and thermal expansion cycling.

• Integrated Seal & Spring Assembly: Features a precision stainless steel spring and high-grade elastomeric O-rings for leak-free shutoff.

• Protective Storage Vials: Ships in sealed, dust-proof plastic containers to keep spare cartridges free from moisture and metal shaving contamination prior to installation.

• Smooth Superheat Response: Ensures linear refrigerant injection into the evaporator coil to maintain stable superheat.

Supported Applications

• Commercial Refrigeration: Walk-in freezers, blast chillers, cold storage rooms, and supermarket rack systems.

• Industrial HVAC: Process liquid chillers and packaged rooftop air handling units using modular expansion valves.

• Field Repairs & Retrofits: Ideal for servicing worn TXV valve internals without unsoldering line connections.

Benefits

• Eliminates the cost and labor of replacing entire expansion valve bodies during capacity upgrades.

• Restores precise superheat control and prevents compressor liquid slugging.

• Protective vials prevent job site contamination of precision-machined internal surfaces.

Package Includes

• 1 x Main Valve Cage Insert Assembly

• Replaceable Orifice Cartridges (Selected Size Rating)

• Protective Storage Vials

Important Buyer Verification Notes

Notice for Technicians & Contractors: Verify the required orifice size rating (kW / Tonnage) and valve body series before installation. Inspect the internal valve cavity to ensure complete cleanliness and coat O-ring seals with compatible refrigeration oil during insertion.

Why Buy From Al Ramiz

• Genuine Quality Parts: Field-tested refrigeration controls, inserts, and replacement parts.

• UAE Stock & Local Inventory: Fast processing and local dispatch across the UAE.

• Technical Product Support: Expert assistance with orifice capacity selection and cross-referencing.

Frequently Asked Questions (FAQs)

What is the function of the center spring-loaded assembly in this set?

The center component is the valve cage insert, which houses the dynamic metering pin and spring mechanism that interacts with the TXV power head to modulate refrigerant flow.

Why do the orifice cartridges come in plastic vials?

The plastic vials keep spare metering cartridges completely free from dirt, dust, and moisture until they are ready to be installed inside the expansion valve.

Can I replace this orifice assembly without unsoldering the valve body?

Yes, modular thermostatic expansion valves allow you to unbolt the top power assembly and swap this orifice cage directly out of the fixed valve body in the pipeline.