{"product_id":"belaire-qp338vle-air-compressor","title":"BelAire Air Compressor QP338VLE 7.5 HP 80 Gallon Two Stage Quiet 208-230V 3 Phase","description":"\u003ch2\u003eBelAire QP338VLE: three-phase quiet air, without buying a rotary screw\u003c\/h2\u003e \u003cp\u003eIf your building already has three-phase service, the usual advice when you complain about compressor noise is to move up to a rotary screw. Screws are quiet, and they are also a different class of purchase: higher price, a different service regime, and a machine that prefers to run continuously rather than start and stop with the work.\u003c\/p\u003e \u003cp\u003eThe QP338VLE offers the other route. It is an ordinary two-stage cast iron piston compressor — familiar, serviceable, start-stop by nature — sitting inside a sound enclosure that brings it down to \u003cstrong\u003e69 dBA\u003c\/strong\u003e. BelAire's own framing is that the machine has the noise level of a rotary screw, at less than half the noise of a standard piston unit. The motor is 7.5-HP, 3-Phase, on 208-230V, and the tank is an 80-Gallon vertical ASME vessel rated to 175 PSI.\u003c\/p\u003e  \u003ch3\u003eWhy three-phase changes the calculation\u003c\/h3\u003e \u003cp\u003eA three-phase motor delivers power more evenly than a single-phase one. Torque arrives in overlapping pulses rather than in gaps, which is why three-phase motors of a given rating tend to start more gently, run cooler and draw less current per conductor than their single-phase equivalents. On a compressor that will start and stop through a working day, those are not abstract benefits — they show up as less heat in the motor and less shock through the drive on every start.\u003c\/p\u003e \u003cp\u003eThe practical condition is simply that you must already have three-phase service, or be willing to install a converter. If your panel is single-phase, this is the wrong version of this machine and there is a single-phase build to order instead.\u003c\/p\u003e \u003cp\u003eA magnetic starter comes with the compressor. On a three-phase motor that is not a nicety: it is the device providing thermal overload protection, and having it supplied means your electrician is wiring to a starter rather than sourcing one.\u003c\/p\u003e  \u003ch3\u003eWill It Fit?\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eElectrical service.\u003c\/strong\u003e 3-Phase, 208-230V. Verify at the panel before ordering.\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eCircuit sizing.\u003c\/strong\u003e BelAire publish neither an amp draw nor a breaker size for this model. Their specification says to consult a certified electrician, and we will not improve on that by guessing. Bring your electrician the nameplate data on arrival, or ask us to obtain the figures from BelAire in writing first.\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003ePlan area.\u003c\/strong\u003e 38.2\" by 24.3\". Small for the output, because the tank is vertical.\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eHeight.\u003c\/strong\u003e 80\". Add access room above it for panel removal and pump service.\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eClearance for air.\u003c\/strong\u003e The enclosure works by drawing air through with a high-flow fan. Boxing the machine into a corner, blocking a grille or removing panels defeats the cooling design. Keep the manual's clearances on every side.\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eWeight.\u003c\/strong\u003e 537 lbs., and tall. Moving it is a question of route and uprighting, not of raw strength.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003ePreparing the site, providing ventilation and arranging the electrical work and any permits fall to the customer. We will verify any published figure against factory documentation on request.\u003c\/p\u003e  \u003ch3\u003eWhat the enclosure is, and the pump inside it\u003c\/h3\u003e \u003cp\u003eThe shroud is high-strength ABS, with a high-flow fan drawing cooling air across the pump. Enclosing a compressor normally means trapping heat; the fan is what stops that, and it is why BelAire claim the machine runs cooler as well as quieter rather than trading one against the other.\u003c\/p\u003e \u003cp\u003eInside, the pump is two-stage with a cast iron cylinder and splash lubrication. The two stages exist so that air can be compressed, cooled, and compressed again — the reason a machine of this size can hold 175 PSI without cooking its own pump. An integrated aftercooler then takes heat out of the discharge, which drops moisture out of the air before it reaches your tools. Cast iron is used for the cylinder because it keeps its bore shape under prolonged heat; lighter materials distort, and a distorted bore is a pump that starts drinking oil.\u003c\/p\u003e \u003cp\u003eBehind the panels, where you cannot see or hear a developing fault, two automatic protections do the watching: low oil level protection and a high temperature shutdown. On an enclosed machine those are the difference between a service call and a replacement pump.\u003c\/p\u003e  \u003ch3\u003ePerfect For\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eThree-phase workshops that need quiet.\u003c\/strong\u003e The whole point of this build.\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eShops considering a rotary screw purely for noise.\u003c\/strong\u003e This is the cheaper way to solve that specific problem.\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eStart-stop duty.\u003c\/strong\u003e Piston machines suit intermittent demand better than screws do.\u003c\/li\u003e \u003cli\u003e\u003cstrong\u003ePremises with neighbours, offices or customers within earshot.\u003c\/strong\u003e\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eFloor plans with no room to spare.\u003c\/strong\u003e A vertical 80-Gallon tank on a 38.2\" by 24.3\" footprint.\u003c\/li\u003e \u003c\/ul\u003e  \u003ch3\u003eWhat's in the Box\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e7.5-HP three-phase 208-230V motor, magnetic starter supplied with it\u003c\/li\u003e \u003cli\u003eTwo-stage cast iron pump, belt driven, splash lubricated\u003c\/li\u003e \u003cli\u003eHigh-strength ABS sound enclosure with high-flow cooling fan\u003c\/li\u003e \u003cli\u003e80-Gallon vertical ASME certified tank, 100% factory tested at full pressure\u003c\/li\u003e \u003cli\u003eASME safety valves\u003c\/li\u003e \u003cli\u003eIntegrated aftercooler\u003c\/li\u003e \u003cli\u003eAutomatic pressurised tank drain — pressurised, not an electronic timer drain\u003c\/li\u003e \u003cli\u003eLow oil level protection, high temperature shutdown, oil sight glass, pressure gauge\u003c\/li\u003e \u003cli\u003e3\/4\" tank outlet\u003c\/li\u003e \u003cli\u003eDelivered \"wet\": oil filled at the factory, ready to run\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eNo air dryer is supplied or fitted.\u003c\/p\u003e  \u003ch3\u003eSpecifications\u003c\/h3\u003e \u003ctable\u003e \u003ctbody\u003e \u003ctr\u003e \u003cth scope=\"row\"\u003eMotor\u003c\/th\u003e \u003ctd\u003e7.5-HP, 208-230V, 3-Phase, electric\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth scope=\"row\"\u003eMagnetic starter\u003c\/th\u003e \u003ctd\u003eSupplied\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth scope=\"row\"\u003eAmp draw \/ recommended breaker\u003c\/th\u003e \u003ctd\u003eNot published — BelAire's specification says consult a certified electrician\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth scope=\"row\"\u003eNoise\u003c\/th\u003e \u003ctd\u003e69 dBA\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth scope=\"row\"\u003ePump\u003c\/th\u003e \u003ctd\u003eTwo-stage, solid cast iron, belt drive, splash lubrication\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth scope=\"row\"\u003eMaximum pressure\u003c\/th\u003e \u003ctd\u003e175 PSI\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth scope=\"row\"\u003eOutput rated at\u003c\/th\u003e \u003ctd\u003e100 PSI\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth scope=\"row\"\u003eTank\u003c\/th\u003e \u003ctd\u003e80-Gallon vertical, ASME certified\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth scope=\"row\"\u003eTank outlet\u003c\/th\u003e \u003ctd\u003e3\/4\"\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth scope=\"row\"\u003eAftercooler\u003c\/th\u003e \u003ctd\u003eIntegrated\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth scope=\"row\"\u003eFootprint and height\u003c\/th\u003e \u003ctd\u003e38.2\" by 24.3\", 80\" tall\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth scope=\"row\"\u003eWeight\u003c\/th\u003e \u003ctd\u003e537 lbs.\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth scope=\"row\"\u003eConsumer warranty\u003c\/th\u003e \u003ctd\u003e2 Year\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003cp\u003e\u003cstrong\u003eA number we are choosing not to print.\u003c\/strong\u003e The air volume this compressor delivers is stored in the product data as a bare figure with no unit attached to it, so we cannot responsibly restate it — and the meta description Shopify currently shows against this product quotes a motor rating that contradicts the specification. Neither is repeated here. If delivered volume is the figure your buying decision rests on, ask us in writing and we will have BelAire confirm it before you order.\u003c\/p\u003e  \u003ch3\u003eCertification, stated honestly\u003c\/h3\u003e \u003cp\u003eThe certification recorded for this compressor is ASME, and it applies where it matters most: the tank is an ASME certified vessel and the relief devices are ASME safety valves. Those are the components containing and releasing 175 PSI.\u003c\/p\u003e \u003cp\u003eNothing in this product's data claims a listing from an independent testing laboratory for the electrical assembly as a whole. That is a separate approval from a separate body, and a pressure vessel rating does not stand in for it. Depending on your insurer, your local electrical inspector, or a workplace safety scheme you operate under, such a listing may be required for equipment installed in a commercial building. Establish what applies to you before purchase rather than at inspection.\u003c\/p\u003e  \u003ch3\u003eShipping and delivery\u003c\/h3\u003e \u003cp\u003eThis is a freight item, shipped within the lower 48 states, with the cost calculated live at checkout for your own address. Before it ships, decide how it comes off the truck — a forklift on site, a dock, or collecting it yourself from the carrier's terminal. Deliveries to residential addresses carry an extra fee and you will see it at checkout. On arrival, examine the crate first: any damage must be written onto the bill of lading in front of the driver, because once you have signed clean the carrier's obligation is largely discharged.\u003c\/p\u003e  \u003ch3\u003eWarranty\u003c\/h3\u003e \u003cp\u003eThe product data records a 2 Year consumer warranty for this model, and the warranty document linked on this page is the controlling version. Two habits protect any claim under it: keep the machine's service record, and never take a failed assembly apart before it has been assessed. Photograph it as it sits, leave it intact and speak to us first — a stripped component is rarely accepted afterwards.\u003c\/p\u003e","brand":"BelAire Compressors","offers":[{"title":"Default Title","offer_id":54965133345107,"sku":"QP338VLE","price":2866.0,"currency_code":"GBP","in_stock":true}],"url":"https:\/\/progradewarehouse.com\/products\/belaire-qp338vle-air-compressor","provider":"PRO GRADE WAREHOUSE","version":"1.0","type":"link"}