AC SERVICE VALVE 3/4″

Description

The 3/4″ 3-Way Service Valve (also known as a base valve, stop valve, or suction line valve) is a heavy-duty, solid brass mechanical valve mounted directly to the exterior chassis of an air conditioner or heat pump’s outdoor condensing unit.This valve controls the flow of refrigerant through the primary suction line (the larger, insulated copper line). It features three distinct connection pathways: one for the indoor unit line set (flare/sweat), one leading to the outdoor condenser coil, and a dedicated Schrader service access port under a brass cap. This port allows HVAC technicians to safely attach gauge manifolds to check system pressures, charge refrigerant, or evacuate the system.Technical SpecificationsSize Connection: $3/4text{ inch}$ ($6/8text{“}$ ODF / Flare)Configuration: 3-Way (System, Line Set, and Service Access Port)Material: Forged Brass Body with a copper extension tube for clean brazing/sweatingInternal Mechanism: Hex-key (Allen wrench) operated internal stem to isolate or open the refrigerant loopPressure Rating: Compatible with high-pressure systems like R-410A, as well as legacy R-22 systemsCompatible Brands & SystemsBecause refrigeration line sizes are standardized globally by plumbing dimensions rather than appliance brands, a 3/4″ service valve is universally compatible with any system that uses a 3/4” suction line. This size is typically found on larger residential cooling systems ranging from $2.5text{ Ton to }5text{ Ton}$ ($30,000text{ to }60,000text{ BTU}$).1. Direct Part Number Cross-ReferencesThis style of brass base valve is a direct drop-in replacement for the following manufacturer spare part numbers:Everwell Code: ACV3S410-34Goodman / Amana / Daikin: 0151R00185SRheem / Ruud: 61-104914-03Trane / American Standard: VAL09249 / VAL11933Carrier / Bryant / Payne: 10M24 / EP13BZ2412. Supported HVAC BrandsThis valve fits perfectly onto the outdoor condenser units of virtually all major central split-system and large mini-split manufacturers:GoodmanCarrierRheem / RuudTraneLennoxYorkMidea / Gree (Large-capacity multi-zone outdoor units)Essential Installation Checklist: During installation, it is absolutely critical to remove the internal valve stem core and wrap the brass body in a wet rag before brazing the copper extension tube to your line set. Excessive heat from a torch will permanently melt the internal Teflon/rubber seals, causing a permanent refrigerant leak. Ensure the hex cap is tightened securely with a wrench after servicing to prevent slow micro-leaks.