Champion LVR05PDRHS-12 — 7.5 HP Duplex, 120 Gallon Horizontal Tank

Here is the unusual thing about this package, and the reason it is worth a look even if you were not shopping for a duplex: the standard build is specified for single-phase power. Two compressors and two motors sharing one 120 gallon horizontal tank is normally a three-phase proposition, which puts it out of reach of any shop that never had three-phase brought to the building. The specification for the LVR05PDRHS-12 lists it at 208-230, 1PH. If you have wanted the redundancy of a twin-pump package and been told your service could not support it, start the conversation again here.

Three-phase has not been forgotten. 208-230/460 Volt 3 phase available is listed as an option on this model — ask us for pricing on that build, since it is not a stock configuration.

The starter panel is the part that makes a duplex a duplex

Two compressors bolted to one tank are not a duplex; they are two compressors that will both try to start at the same moment and fight each other. What makes it a system is the control gear, and this package ships with a NEMA 1 mounted full voltage starter panel containing two starters plus an alternator.

The alternator is the component doing the interesting work. It swaps which machine leads on each cycle, so run hours accumulate evenly across the pair rather than piling onto one unit while the other sits as a spare and quietly seizes from disuse. Even wear means both airends arrive at their service life together, which makes maintenance planning honest instead of a series of surprises. It also means that on a light day one machine covers demand on its own — you are not spinning full capacity to run a blow gun.

And when one half is down for service, the shop still has air. That is usually the whole reason a duplex is specified, and it only holds true if the control gear is designed for it, which is why the panel is worth as much attention as the pumps.

An advanced rotary vane airend with a cast iron core

The pump here is a Champion rotary vane airend with cast iron construction, direct driven at a deliberately unhurried 1760RPM. Direct drive removes the belt: nothing to tension, nothing to glaze, nothing to replace, and no alignment to lose. Slow speed does the rest — the slower an airend turns, the gentler the loads on the vanes, the rotor and the bearings, and the less heat there is to get rid of.

Cast iron matters for the same unglamorous reason it matters in an engine block. It is dimensionally stable when hot, it damps vibration rather than transmitting it, and it wears slowly. On a machine whose entire proposition is running for a long time without drama, that is the right material even though it is the heavy one.

Each motor is a TEFC type — totally enclosed, fan cooled — which is the specification you want in a workshop rather than an office. A TEFC frame keeps dust, grit and moisture out of the windings, and a compressor room is generally the dustiest corner of any building.

Factory-filled lubricant and thermal protection

The machine arrives filled with CS300 vane di-ester lubricant. Two things follow from that. The first is practical: it is filled at the factory, so commissioning does not begin with sourcing the right oil. The second matters more over time — a vane compressor's lubricant is not a generic mineral oil, and a di-ester product is specified because of how it behaves at temperature and how it manages the vane-to-stator contact that a vane machine depends on. Substituting something cheaper at the first oil change is the most reliable way to shorten the life of an otherwise long-lived airend.

Backing that up is high temperature safety shutdown protection. Heat is what actually kills compressors — a blocked cooler, a hot day, a door closed on the compressor room, and temperatures climb until something is damaged. A shutdown on temperature converts what would have been a rebuild into an inconvenient afternoon and a phone call.

Oil carryover is quoted at 3ppm, which is worth checking against what the air is feeding. Spray equipment, pneumatic controls and instrument air all care about it.

Will it fit your shop?

The package is a horizontal tank-mounted unit, 76 in. long, and it weighs 1210 lbs. It needs a flat, solid floor, a delivery route that can take a pallet of that weight, and clearance around it for airflow and service access. Oil capacity is 1 gal and the tank outlet is 1/2 in. NPT.

On the electrical side, do not size the supply from a web page. Have a certified electrician specify the circuit and the protection for the build you are ordering, because a duplex starts two motors and the answer is not simply twice a single-machine figure. Confirming power, floor, clearance and access is the customer's responsibility, and we would far rather work through it with you before you order than after a pallet is standing in your yard.

A note on the published air delivery figure

The specification list for this model gives its air delivery at 150 psi. We have not reprinted that figure in this description, because it is recorded in the product data in a form we cannot cite with confidence, and on a compressor purchase the delivery figure is the number a buyer actually sizes against — it deserves to be right rather than approximately right. Ask us and we will confirm the delivery for this exact build, in writing, before you order. For the same reason, the tank size and the overall height are given in the manufacturer's data without units, so this page states the length and the tank capacity and leaves the rest to a confirmed drawing rather than a guess.

Perfect For

• Shops without three-phase power that still need twin-pump redundancy — this is the configuration that makes that possible.
• Automotive and body shops, where air demand runs all day and losing the compressor means losing the bay.
• Woodworking shops and machine tool rooms, both named by the manufacturer as target applications for the series.
• Anyone replacing a tired single compressor who has learned what a compressor failure costs in downtime rather than in parts.

Specifications

How the series is configured

The LV and LVR range is sold as an airend on its own, as a compressor with a motor, as a tank-mounted simplex or duplex, or as a Hypac total system with the airend, motor, tank and dryer supplied together. This listing is the tank-mounted duplex. If you are weighing up whether a dryer belongs in the package, tell us what the air is feeding and we will go through it with you — retrofitting one later is always more expensive than specifying it now.

Standards and approvals

The data we hold states no third-party listing or conformity marking, so this page does not claim one. That is not evidence that none exists; documentation for equipment this size often sits with the manufacturer rather than in a catalogue. If an insurer, an authority having jurisdiction or an internal standard requires specific paperwork, tell us before you order and we will request it.

Shipping and delivery

Ships freight to the lower 48 states. At 1210 lbs this needs a forklift, a dock or a properly thought-out plan at the receiving end — or choose to collect it from the carrier's terminal. Residential delivery carries a fee. Freight is quoted live at checkout for your address rather than printed here, because carrier rates move.

Check the shipment over before signing, and record any damage on the bill of lading at the time of delivery. A clean signature makes a freight claim very difficult to pursue later.

Warranty

The manufacturer's warranty applies. No term is printed here because the product data we hold does not state one for this model — ask and we will confirm the current terms before you commit. Keep the commissioning and service records, use the specified lubricant, and if a fault appears raise it before anyone opens the airend: a machine that has already been dismantled cannot be assessed, and that is the usual reason a good claim is turned down.

Questions on power, sizing or delivery? Call, text or chat with us — 866-774-7743.