{"product_id":"90065-220-sv","title":"Mastercool 90065 4 CFM 2-Stage Vacuum Pump with Solenoid Valve for HVAC","description":"\u003ch3\u003eElite Performance: High-Capacity Power with Solenoid Valve Protection\u003c\/h3\u003e\u003cp\u003eThe Mastercool 90065-220-SV combines high-capacity professional performance with critical solenoid valve protection and elite ball bearing design. With 119 litres per minute displacement, two-stage vacuum capability, and automatic oil backflow prevention, this is the premium choice for technicians who demand both power and protection on medium to large HVAC systems.\u003c\/p\u003e\u003ch4\u003eSolenoid Valve Protection: Essential for High-Capacity Work\u003c\/h4\u003e\u003cp\u003eThe integrated \u003cstrong\u003esolenoid valve automatically closes when the pump stops\u003c\/strong\u003e, preventing oil from flowing back into the A\/C system during power failures, accidental shutdowns, or when switching off the pump. On a high-capacity pump like the 90065, this protection is even more critical — the larger oil reservoir means more potential contamination if backflow occurs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy This Matters on High-Capacity Pumps:\u003c\/strong\u003e Larger pumps hold more oil (531ml in the 90065), which means a power failure without solenoid protection could push significant amounts of oil back into your freshly evacuated system. The SV model eliminates this risk entirely, protecting both your work and your customer's expensive equipment.\u003c\/p\u003e\u003ch4\u003eElite Ball Bearing Design\u003c\/h4\u003e\u003cp\u003eThe 90065-220-SV features \u003cstrong\u003eelite ball bearing construction\u003c\/strong\u003e for superior durability and extended service life. Ball bearings reduce friction, run cooler, and last longer than standard sleeve bearings — essential for a high-capacity pump that may run for extended periods on large systems.\u003c\/p\u003e\u003ch4\u003eHigh-Capacity Two-Stage Performance\u003c\/h4\u003e\u003cp\u003eWith \u003cstrong\u003e119 litres per minute displacement at 50Hz\u003c\/strong\u003e, the 90065-SV evacuates medium to large systems quickly and efficiently. The two-stage design achieves \u003cstrong\u003e25 microns ultimate vacuum\u003c\/strong\u003e — more than adequate for professional refrigeration work. Perfect for systems with 1 to 4.5 kg charge capacity.\u003c\/p\u003e\u003ch4\u003eProfessional Features for Demanding Work\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolenoid Valve\u003c\/strong\u003e — Automatic protection against oil backflow during power failures or shutdowns\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElite Ball Bearing Design\u003c\/strong\u003e — Superior durability, reduced friction, extended service life\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManifold Isolation Valve\u003c\/strong\u003e — Isolates pump from system for leak testing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree Inlet Ports\u003c\/strong\u003e — 1\/4\" SAE, 3\/8\" SAE, and 1\/2\" ACME (for automotive R134a systems)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGas Ballast Valve\u003c\/strong\u003e — Helps prevent oil contamination from high moisture content\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced Cooling System\u003c\/strong\u003e — High-volume fan and cooling fins maintain optimal temperature\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy Maintenance\u003c\/strong\u003e — Removable vapour discharge\/oil fill port and accessible drain valve (531ml oil capacity)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOil Level Monitoring\u003c\/strong\u003e — Large sight glass with max\/min indicators\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Protection\u003c\/strong\u003e — Motor protection with on\/off rocker switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck Valve Protection\u003c\/strong\u003e — Prevents oil back-flow during normal operation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eDurable Construction for Professional Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRefined Cartridge Machining\u003c\/strong\u003e — Improved surface finish extends pump life\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpanded Internal Oil Path\u003c\/strong\u003e — Minimises friction and heat buildup\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUpgraded Seals\u003c\/strong\u003e — Ensures maximum vacuum performance down to 25 microns\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eU.S. Designed and Tested\u003c\/strong\u003e — American engineering with proven reliability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust 1\/3 HP Motor\u003c\/strong\u003e — Powerful, efficient, and thermally protected\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eBuilt for Field Reliability\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePortable Design\u003c\/strong\u003e — Easy-grip handle and reinforced base (13.2 kg)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfessional Footprint\u003c\/strong\u003e — 37 x 15.5 x 27.5 cm dimensions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e220V 50\/60Hz Power\u003c\/strong\u003e — UK\/European standard (Schuko cable)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple Connection Options\u003c\/strong\u003e — Manifold with 1\/4\" SAE, 3\/8\" SAE, and 1\/2\" ACME ports\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eStages: Two-stage\u003c\/li\u003e\n\u003cli\u003eFree Air Displacement: 119 lit\/min (50 Hz), 142 lit\/min (60 Hz)\u003c\/li\u003e\n\u003cli\u003eUltimate Vacuum: 25 microns*\u003c\/li\u003e\n\u003cli\u003eMotor: 1\/3 HP, 1425 RPM (50 Hz), 1725 RPM (60 Hz)\u003c\/li\u003e\n\u003cli\u003ePower: 220V, 50\/60 Hz (Schuko cable)\u003c\/li\u003e\n\u003cli\u003eWeight: 13.2 kg (29 lbs)\u003c\/li\u003e\n\u003cli\u003eDimensions: 37 x 15.5 x 27.5 cm\u003c\/li\u003e\n\u003cli\u003eOil Capacity: 531 ml (18 oz)\u003c\/li\u003e\n\u003cli\u003eConnections: Manifold with 1\/4\" SAE, 3\/8\" SAE, 1\/2\" ACME ports\u003c\/li\u003e\n\u003cli\u003eSystem Capacity: 1 to 4.5 kg charge capacity\u003c\/li\u003e\n\u003cli\u003eFeatures: Solenoid valve, elite ball bearing design, manifold isolation valve, gas ballast valve, check valve, three inlet ports\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eService Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eOil Capacity: 531 ml (18 oz)\u003c\/li\u003e\n\u003cli\u003eReplacement Cartridge: 90165-R\u003c\/li\u003e\n\u003cli\u003eSeal Service Kit: 90062-11-SEAL\u003c\/li\u003e\n\u003cli\u003eRecommended Oil: Mastercool vacuum pump oil (90018-6 or 90024-6)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eWhen Solenoid Valve Protection is Essential\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnstable Power Supply\u003c\/strong\u003e — Job sites with unreliable mains power or generator use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMobile Service Work\u003c\/strong\u003e — Risk of accidental disconnection or power interruption\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Value Systems\u003c\/strong\u003e — Premium installations where contamination risk is unacceptable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge System Work\u003c\/strong\u003e — Extended evacuation times increase power failure risk\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuality Assurance\u003c\/strong\u003e — Businesses with strict contamination prevention protocols\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommercial Installations\u003c\/strong\u003e — Professional reputation protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePeace of Mind\u003c\/strong\u003e — Automatic protection eliminates human error\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eThe Premium High-Capacity Choice\u003c\/h4\u003e\u003cp\u003eThe 90065-220-SV represents the pinnacle of high-capacity vacuum pump design. You get professional 119 lit\/min performance with 25-micron capability, plus the critical protection of a solenoid valve and the durability of elite ball bearing construction. This is the pump for busy technicians who work on medium to large systems and cannot afford contamination incidents or premature pump failure.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePerfect for:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eProfessional HVAC technicians requiring contamination protection on large systems\u003c\/li\u003e\n\u003cli\u003eMobile service work with power interruption risk\u003c\/li\u003e\n\u003cli\u003eHigh-value commercial installations\u003c\/li\u003e\n\u003cli\u003eMulti-zone heat pump systems\u003c\/li\u003e\n\u003cli\u003eWalk-in cooler and freezer service\u003c\/li\u003e\n\u003cli\u003eQuality-focused businesses with strict service standards\u003c\/li\u003e\n\u003cli\u003eJob sites with unstable power supply\u003c\/li\u003e\n\u003cli\u003eTechnicians who demand both capacity and protection\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSV vs Standard: Worth the Investment?\u003c\/h4\u003e\u003cp\u003eThe solenoid valve and elite ball bearing design add to the cost of the standard 90065-220. Consider this: a single contamination incident on a large commercial system requiring refrigerant replacement and system flushing can cost hundreds in materials and labour, plus potential reputation damage. The SV model pays for itself the first time it prevents contamination, whilst the ball bearing design extends pump life significantly.\u003c\/p\u003e\u003cp\u003e\u003cem\u003e*Note: Micron readings represent optimal laboratory conditions. Field conditions may vary.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eElite ball bearing design with solenoid valve protection. Built to last, designed to protect.\u003c\/strong\u003e Technical documentation and parts lists available for download above.\u003c\/p\u003e","brand":"Mastercool","offers":[{"title":"Default Title","offer_id":57164767723897,"sku":"90065-220-SV","price":742.33,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/0158\/3481\/files\/90065-220-SV_web.jpg?v=1777446848","url":"https:\/\/www.airconspares.com\/products\/90065-220-sv","provider":"Airconspares.com","version":"1.0","type":"link"}