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Davey Booster Pump
Davey Torrium 2 Water Pressure Controller
Davey
Davey Torrium 2 Water Pressure Controller
- Price
- $501.60
Davey DD Series Constant Pressure Booster
Davey
Davey DD Series Constant Pressure Booster
- Price
- From $2,510.40
Davey BIT Cistern Series Booster Pump
Davey
Davey BIT Cistern Series Booster Pump
- Price
- From $1,381.20
Davey Booster Pump
Davey
Booster Pumps & Controllers
Australian-built pressure boosting with the Torrium2 controller, all-stainless hydraulics and a 130°F ambient motor rating. Five families covering 14 to 36 gpm and up to 95 psi — sized to your building by our technical desk in Houston.
14–36GPM
to 95 psiPressure
130°FMotor Ambient
IP55Ingress Rating
NSF/ANSI 61WQA Certified
Davey Water Products is an Australian pump manufacturer whose booster range is built around one idea most of the market still does not use: read flow as well as pressure. A conventional booster runs on a pressure switch, which starts the pump at cut-in and stops it at cut-out, and the gap between those two numbers is what you feel in the shower. Davey’s Torrium2 controller senses pressure and flow together — the pump runs while water is being drawn and stops when it is not, at a cut-out flow of 0.26 gpm.
Five families sit on this page. BT and BIT are Torrium2 boosters for pressurized mains and for cistern supply. DynaDrive and EvoDrive are drive-controlled constant-pressure systems with the tank built in, both of which pair for duty/standby. Torrium2 is the controller on its own, for retrofitting a pump that is sound but whose switch and tank are not.
Genuine Davey equipment, factory-new in original packaging — sold and supported by Watermain Supply, an independent industrial distributor. Send your flow, pressure and supply arrangement to 1-888.510.4036 and we will size it against Davey’s published data before you order.
What You Are Actually Buying
Five things Davey publishes that most booster datasheets do not.
Torrium2 Reads Flow, Not Just Pressure
The pump starts on a pressure drop and stops when flow falls below 0.26 gpm. That single design decision is why a Davey booster holds a steady pressure through a shower where a pressure-switch system sawtooths between cut-in and cut-out. It also means no pressure tank and no pressure switch in the installation — two fewer parts, and the two most likely to fail.
Cut-In That Sets Itself
After every stop, Torrium2 sets the cut-in point to 80 percent of the last shut-off head. Seasonal supply variation, a main that weakens over the summer, a system that changes as the building does — the controller follows it. Nobody goes back to adjust anything.
All-Stainless Hydraulics
304 stainless impellers, casing, backplate, lock nut and stage body; 316 stainless pump shaft; Teflon neck rings; ceramic and carbon seal faces; marine-grade aluminium motor shell with a baked polyester finish. Every wetted part is specified for corrosion resistance, and the pump handles water to 176°F.
130°F Ambient Motor Rating
Davey publishes the BT motor at a 130°F ambient rating — which it states gives longer life and better tolerance to voltage variation — with IP55 ingress protection, TEFC corrosion-resistant construction and an automatically re-setting thermal overload. In an un-ventilated Texas plant room in August, the ambient rating is the number that matters.
Certified, and Designed to Start Often
WQA certified to NSF/ANSI 61, listed to UL 778, UL 61800-5-1 and CSA-C22.2 No. 108-14. Davey specifies motor and pump for frequent starts, which is what a demand-led booster does all day and what kills equipment that was not built for it.
Plug It In
No hard wiring on the BT range — a 6 ft cord with a standard NEMA plug, 5-15P on 120V and 6-15P on 240V. The discharge outlet rotates a full 360° so the outlet plumbing runs vertically or at a right angle, and the coupling wrench is in the box.
What Problem Are You Solving?
Match the situation to the family. If none of these is quite it, call us — that is the part we are good at.
| The situation | What is going on | The family |
|---|---|---|
| Weak city pressure | Municipal supply arriving at 20–40 psi, showers falling off when a second fixture opens. The supply is pressurized; it is just not enough. | BT Series |
| Tank, cistern or rainwater | Drawing from stored water that arrives at little or no pressure, on a supply that can be interrupted. | BIT Cistern Series |
| Constant pressure, higher flow | Household, farm, irrigation or turf watering needing steady pressure across the whole flow range, with the tank already in the package. | DynaDrive |
| Quiet, efficient, medium home | Medium-sized home or a café, small office or retail unit where noise matters and demand varies all day. | EvoDrive |
| Below-ground storage tank | Pulling clean water up from a tank below the pump — EvoDrive lifts 13 ft, the BT range 25 ft. | EvoDrive or BT Series |
| Duty / standby redundancy | The installation cannot be down. EvoDrive pairs from one cable for duty/standby or parallel; DynaDrive daisy-chains two pumps in parallel. | EvoDrive or DynaDrive |
| Failed switch, waterlogged tank | The pump is sound but the pressure switch has failed or the tank has lost its charge. Replacing the controller is a smaller job than replacing the set. | Torrium2 controller |
| RO or filtration make-up | Boosting downstream of a reverse osmosis or filtration system that has taken its share of the available pressure. | EvoDrive |
The Five Families
Two Torrium2 boosters, two drive-controlled constant-pressure systems, and the controller on its own.
BT Series
Pressurized mains · five models
14–30 GPMNominal flow
40–80 psiMaximum boost
120V & 240VSingle phase
25 ftSuction lift
The core Torrium2 booster. All-stainless hydraulics, 130°F ambient motor, IP55, and a controller that needs no tank and no switch. Davey publishes a maximum inlet pressure per model — from 20 psi on the BT20-40 to 60 psi on the BT14-30 — so the model is chosen on inlet as much as on boost.
Best forHomes on inadequate municipal pressure, underground and surface supplies, automatic water transfer, and domestic or light industrial irrigation.
View BT Series
BIT Cistern Series
Tank & cistern supply · three models
14–20 GPMNominal flow
30–45 psiNominal pressure
Torrium2Controller
SinglePhase
The same Torrium2 intelligence configured for stored water — rainwater tanks, cisterns and bore storage where the source arrives at little or no pressure. Dry-run protection and automatic restart are the features that matter on a supply that can empty.
Best forRainwater harvesting, cistern-fed plumbing, stored-water systems and any supply that can be interrupted.
View BIT Series
DynaDrive
All-in-one constant pressure · 2-year warranty
to 36 GPMFlow
to 91 psiMaximum head
87 psiMaximum setting
Built inPressure tank
Pump, controller and pressure tank in one assembly, holding a constant pressure instead of cycling. Horizontal multistage with all hydraulic parts in stainless, impellers on an extended motor shaft, and an air purging valve on the DD60 and DD90. Two units daisy-chain in parallel.
Best forHousehold and domestic supply, farming and agricultural water, irrigation and turf watering, automatic general water transfer.
View DynaDrive
EvoDrive
VSD · permanent magnet · 2-year warranty
28 GPMMaximum flow
95 psiMaximum pressure
16 GPMBEP at 40 psi
5,200 rpmMotor speed
A variable speed drive and a permanent magnet motor holding one outlet pressure from a dripping tap to full flow, quietly and at low energy. Illuminated touch panel showing operating and set pressure. Two units pair from one cable for duty/standby or parallel, alternating cycles to share the load.
Best forMedium-sized homes, cafés, small offices and retail; below-ground storage tanks; RO make-up; lawn and turf irrigation.
View EvoDrive
Torrium2 Controller
Retrofit · three variants
15–80 psiSetting range
0.26 GPMCut-out flow
110V & 220VSupply
NoneTank required
The controller from the BT and BIT, sold on its own to fit a compatible centrifugal pump. Replaces the pressure switch, the pressure tank and the non-return valve with one unit, and Davey publishes it as having lower head loss than comparable controllers because the internal water pathways are large.
Best forRetrofits where the pump is sound but the switch has failed or the tank has waterlogged, and new builds where nobody wants a tank in the cupboard.
View Torrium2
Compare the Range
The two axes that decide it: whether the supply arrives pressurized, and whether the installation needs a second pump.
| Family | Supply | Control | Flow | Pressure | Tank | Pairing | Warranty |
|---|---|---|---|---|---|---|---|
| BT Series | Pressurized main | Torrium2, pressure + flow | 14–30 gpm nominal | 40–80 psi boost | Not required | Single unit | 12 months |
| BIT Cistern | Tank, cistern, rainwater | Torrium2, pressure + flow | 14–20 gpm nominal | 30–45 psi nominal | Not required | Single unit | 12 months |
| DynaDrive | Either | Drive, constant pressure | to 36 gpm | to 91 psi head | Built in, 42 psi pre-charge | Two, daisy chain | 24 months |
| EvoDrive | Either, 13 ft lift | VSD, permanent magnet | 28 gpm | 95 psi maximum | Built in, 47–50 psi | Two, duty/standby or parallel | 24 months |
| Torrium2 | Any — retrofit | Pressure + flow | Set by the pump | 15–80 psi setting | Replaces it | n/a | 12 months |
Quick rule. Pressurized main and no redundancy requirement, take a BT and choose the model on your inlet pressure, not on boost alone. Stored water, take a BIT. Anywhere the pressure has to be genuinely constant, or the installation may need a second pump, take DynaDrive or EvoDrive — they are the two that pair. Pump already in place and working, take the Torrium2 on its own.
Published Performance
Davey tabulates DynaDrive and EvoDrive as flow at stated pressures. These are the manufacturer’s own figures, not readings off a plot.
DynaDrive — flow at pressure
| Pressure held | DD15-35NPT | DD60-10NPT | DD90-11NPT |
|---|---|---|---|
| 43 psi | 12 gpm | 16 gpm | 24 gpm |
| 58 psi | 5 gpm | 13 gpm | 19 gpm |
| 73 psi | — | 8 gpm | 9 gpm |
| Maximum head, zero flow | 65 psi | 91 psi | 80 psi |
| Stages | 5 | 6 | 5 |
| Voltage | 110–120V | 220–240V | 220–240V |
| Maximum casing pressure | 116 psi | 145 psi | 145 psi |
Maximum set pressure is 87 psi on all three, but no model holds more than the head it can make — on the DD15-35NPT the 65 psi head is the real ceiling. Source: Davey DynaDrive datasheet DWP1940-6/0625.
EvoDrive — flow at pressure
| Pressure held | 20 psi | 40 psi | 60 psi | 95 psi |
|---|---|---|---|---|
| Flow — ED16-40NPT | 22 gpm | 16 gpm | 10.5 gpm | 0 |
| Note | — | Best efficiency point | Factory set point | Maximum pressure |
Davey publishes the best efficiency point for EvoDrive rather than leaving it to be derived — 16 gpm at 40 psi. In faucets: from a tank at a 60 psi setting, 10.5 gpm or about five faucets; boosting a 35 psi city main at the same setting, 21 gpm or about ten, based on 2.2 gpm average per outlet running together. Source: Davey EvoDrive datasheet DWP3267-1/1025.
BT Series — inlet, boost and nominal duty
| Model | Nominal duty | Maximum inlet | Maximum boost | Voltage | P1 kW | FLA | Weight |
|---|---|---|---|---|---|---|---|
| BT14-30 | 14 gpm at 30 psi | 60 psi | 40 psi | 120V | 0.92 | 7.80 | 26.50 lbs |
| BT14-45 | 14 gpm at 45 psi | 40 psi | 60 psi | 120V | 0.86 | 7.30 | 25.40 lbs |
| BT20-30 | 20 gpm at 30 psi | 50 psi | 50 psi | 120V | 0.98 | 8.20 | 27.30 lbs |
| BT20-40 | 20 gpm at 40 psi | 20 psi | 80 psi | 220–240V | 1.10 | 4.70 | 27.30 lbs |
| BT30-30 | 30 gpm at 30 psi | 50 psi | 50 psi | 220–240V | 1.44 | 7.00 | 16.25 lbs |
Read the inlet column first. The BT20-40 makes the most boost in the range at 80 psi, and accepts the least inlet pressure at 20 psi, because incoming plus added has to stay under the 100 psi system limit. Choosing on boost alone is how the wrong model gets ordered. Source: Davey BT Series datasheet DWP0116-4/0323.
Sizing & Best Practices
Four checks, in the order that catches the most mistakes.
1. Measure the inlet before choosing the model
On the BT range this decides as much as the boost figure does. Davey publishes a maximum inlet pressure per model, and incoming plus added must stay under the 100 psi system limit. A 55 psi main rules out the BT20-40 and the BT14-45 before you look at anything else.
2. Calculate the boost you actually need
Required boost = target pressure at the highest fixture + 0.433 psi per foot of elevation + friction loss − inlet pressure. A two-story house wanting 45 psi at the top, 22 ft up, with 5 psi of friction and 30 psi arriving: 45 + 9.5 + 5 − 30 = 29.5 psi of boost. A BT14-30 or BT20-30 covers that; the BT20-40 is more pump than the job needs and accepts a lower inlet.
3. Estimate peak flow honestly
WSFU and Hunter’s curve (IPC Table 604.3) for residential. Davey’s own rule of thumb is useful for a sanity check: about 2.2 to 3 gpm per faucet running at the same time, so a three-bath house with a couple of outlets open lands around 12–16 gpm, not the 30 a fixture-unit count can suggest.
4. Check suction, and decide on redundancy now
The BT range lifts 25 ft with a good quality foot valve fitted; EvoDrive lifts 13 ft. And pairing is a purchase decision — only DynaDrive and EvoDrive pair, so if the installation may ever need a second pump, that is the fork in the road.
Sizing rule of thumb. If the duty point lands past 70 percent of a model’s maximum pressure at design flow, step up a model. A booster running at the far right of its curve runs flat out continuously, which is where motors and seals wear out.
Davey or DAB — An Honest Comparison
We sell both, so we can be straight about it. These two ranges overlap, and the right answer depends on what the building needs next.
| Consideration | Davey EvoDrive | Davey DynaDrive | DAB Esybox |
|---|---|---|---|
| Control | VSD, permanent magnet motor | Drive, constant pressure | VSD, constant pressure |
| Maximum flow | 28 gpm | 36 gpm | 32 gpm |
| Maximum pressure added | 95 psi | 91 psi | 92 psi at shut-off |
| Self-priming | No — 13 ft lift | No | Yes, to 26 ft |
| Tank | Built in | Built in | Built in, 0.5 gal |
| Maximum units in a group | 2 | 2 | 4, wireless |
| Adding a pump later | Cable, sold separately | Daisy chain | Wireless pairing, no controller |
| Noise | Quiet — permanent magnet | Quiet running | 43 dB published |
| App | None | None | Yes |
| Warranty | 24 months | 24 months | 24 months |
The honest verdict. EvoDrive is the quieter, more efficient machine of the two Davey drives and publishes its best efficiency point, which most manufacturers do not; DynaDrive carries more water and more stages. Where Davey wins outright is the Torrium2 retrofit — there is no DAB equivalent to fitting one controller to a pump you already own. Where DAB wins is growth and self-priming: the Esybox pairs up to four units wirelessly with no controller and no rewiring, and it lifts 26 ft where neither Davey drive is self-priming at all. If the building may outgrow one pump, or the supply is a tank below the pump, look at the DAB Esybox range before you commit. Competitor figures from our own DAB product pages and curve data.
Why Source Davey from Watermain Supply
The Correct US Build
60 Hz models with NPT connections and standard NEMA plugs — 5-15P on 120V, 6-15P on 240V — not an import variant that needs a transformer and an adapter to run.
Engineering-Led Selection
We hold the published curve and duty-point data for this range. Send inlet pressure, required flow, building height and supply type and you get a sized selection and the data sheet, not a catalogue page.
Multi-Brand Perspective
If Davey is not the right fit, we will say so and quote the one that is — see the comparison above. We supply DAB, Grundfos, Goulds, Franklin Electric and A.Y. McDonald alongside it.
Complete System, One Order
Pump, controller, tank where one is needed and the fittings to go with it, on a single purchase order rather than three vendors and three lead times.
Houston, Gulf Coast Service
A live technical sales desk in Houston, Monday to Friday, and nationwide delivery.
Account Terms Available
Net-30 for qualified contractor, property-management and municipal accounts.
Frequently Asked Questions
What our technical desk gets asked most about this range.
Do I need a pressure tank with a Davey booster?
Not on the BT, BIT or Torrium2 — the controller replaces the pressure switch and the tank. DynaDrive and EvoDrive carry a tank inside the package already. On any system with a storage water heater a separate thermal expansion tank is still required at the heater, whatever booster you fit.
Why does the BT20-40 only accept 20 psi of inlet pressure?
Because it adds the most — 80 psi — and incoming plus added has to stay under the 100 psi maximum system pressure. Davey publishes a maximum inlet figure for every model, from 20 psi on the BT20-40 to 60 psi on the BT14-30. Measure your main before choosing on boost.
What does Torrium2 actually do differently?
It reads flow as well as pressure. The pump starts on a pressure drop and stops when flow falls below 0.26 gpm, rather than stopping at a fixed cut-out pressure. It also resets its own cut-in point to 80 percent of the last shut-off head after every stop, so it follows a supply that changes without anyone adjusting it.
Can I fit Torrium2 to a pump I already have?
Yes, on a compatible centrifugal pump — that is what the standalone variants are for. The controller has to be matched to both the pressure band and the motor rating, so send us the pump make, model and nameplate and we will confirm which variant fits before you order.
Which models can run two pumps?
DynaDrive daisy-chains two pumps in parallel, and EvoDrive pairs two units for duty/standby or parallel from a single connection cable, alternating cycles to share the load and combining output at peak demand. The BT and BIT are single-unit only. It is a purchase decision, so decide before you order.
How much suction lift can these handle?
The BT range lifts to 25 ft, and Davey requires a good quality foot valve on a lift installation, with the PRIME button held in while the pump establishes prime. EvoDrive lifts to 13 ft. Where the lift is deeper than that, a self-priming machine is the better answer.
Are these certified for drinking water?
Yes. The BT, DynaDrive and EvoDrive ranges are WQA certified to NSF/ANSI 61, and listed to UL 778, UL 61800-5-1 and CSA-C22.2 No. 108-14.
Will they cope with a hot plant room?
The BT motor carries a 130°F ambient rating, which Davey publishes as giving longer life and better tolerance to voltage variation, with IP55 ingress protection and an automatically re-setting thermal overload. The Torrium2 controller itself is rated to 120°F ambient, which is the lower of the two figures and the one to design against.
What is the warranty?
Twelve months from the date of purchase as standard, and 24 months on DynaDrive and EvoDrive, which Davey publishes a two-year term for on its own data sheets. Keep your invoice — it is the document a claim is evidenced by.
Should I be looking at DAB instead?
Possibly. If the building may outgrow one pump, the DAB Esybox pairs up to four units wirelessly with no controller and no rewiring, where the Davey drives cap at two. If the supply is a tank below the pump, the Esybox is self-priming to 26 ft and neither Davey drive is self-priming at all. If you are retrofitting a controller to an existing pump, Davey wins and DAB has no equivalent. Tell us the job and we will say which.
Tell Us the Job
Send inlet pressure, required flow, building height, supply type and whether the installation needs a second pump. We will come back with a sized selection, the data sheet and a lead time — and an honest note if a different brand fits better.
Technical data on this page is taken from Davey Water Products US 60 Hz literature — BT Series DWP0116-4/0323, DynaDrive DWP1940-6/0625 and EvoDrive DWP3267-1/1025 — and is subject to change by the manufacturer. Confirm against the current installation and operating instructions before specifying.
Davey, Torrium2, DynaDrive, EvoDrive and DAB are trademarks of their respective owners, used here for product identification only.
Watermain Supply is a DBA of E4 Industrial LLC, an independent industrial distributor based in Houston, Texas.
Davey, Torrium2, DynaDrive, EvoDrive and DAB are trademarks of their respective owners, used here for product identification only.
Watermain Supply is a DBA of E4 Industrial LLC, an independent industrial distributor based in Houston, Texas.
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