
Water Pressure Pump | Booster
SKU: EA-PT-BOOST-03
Order before 12:00pm AEST
for same-day dispatch from Wyong NSW
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Australia-wide delivery. Shipping is calculated at checkout based on the packed weight and delivery destination.
Free Click & Collect from our Wyong NSW showroom.
Same-day dispatch on orders before 12pm AEST.
In stock · ships from Wyong, NSW
14-day returns on damaged or faulty items - returns policy
Questions? Call (02) 8772 8162 Mon-Thu 9am-3pm · Fri 9am-1pm AEST · Closed weekends
- Capacity
- 400 GPD
- Voltage
- 24V DC
- Power
- 65W
- Flow @ 80 PSI
- 2.5 LPM
Specifications
- Type
- RO booster diaphragm pump
- Brand / model
- DengYuan TYP-4000NA
- Capacity
- 400 GPD
- Voltage
- 24V DC
- Power
- 65W
- Working pressure
- 80 PSI
- Maximum pressure
- 160 PSI
- Bypass pressure (adjustable)
- 140 PSI
- Flow rate at 80 PSI
- 2.5 LPM
- Current draw at 80 PSI
- 2.5 A
- Outlet connection
- 3/8" NPT
- Requires
- 220V AC → 24V DC transformer (sold separately)
The DengYuan TYP-4000NA - a 400 GPD RO booster pump for the higher-output residential and commercial RO systems where the smaller 50 GPD booster doesn't have the headroom. Adjustable bypass pressure, 24V DC operation, and DengYuan's well-known build quality from Taiwan.
When You Need 400 GPD Instead of 50 GPD
The standard 50 GPD RO booster pump handles residential RO systems producing 50-75 GPD of permeate. That covers most household drinking-water installations.
The TYP-4000NA scales up significantly:
- 400 GPD output rating - handles RO systems with 4-8× the permeate output of a residential setup
- 2.5 LPM flow at 80 PSI working pressure
- Bypass pressure 140 PSI (adjustable) - protects the pump from over-pressurisation
- 160 PSI maximum pressure rating
For commercial drinking-water installations, multi-membrane RO systems, light industrial water treatment, and the larger residential RO setups (e.g. whole-house RO for a high-mineral supply), the TYP-4000NA is the booster pump.
Why DengYuan Specifically
DengYuan (Taiwan) is the established premium-tier RO pump manufacturer - their diaphragm pumps are the reference design that cheaper Chinese manufacturers copy.
Specifications
- Model: DengYuan TYP-4000NA
- Capacity: 400 GPD
- Voltage: 24V DC
- Power: 65W
- Working pressure: 80 PSI
- Maximum pressure: 160 PSI
- Bypass pressure (adjustable): 140 PSI
- Flow at 80 PSI: 2.5 LPM
- Current at 80 PSI: 2.5 A
- Outlet: 3/8" NPT
- Pump type: diaphragm, bypass pressure adjustable
Power Requirements
24V DC operation requires a 220V AC to 24V DC transformer (sold separately). For a complete RO booster pump installation, the kit typically needs:
- This pump
- 220V AC → 24V DC transformer
- 24V high-pressure switch on the outlet
- 24V low-pressure switch on the inlet
Where This Pump Fits
- 400 GPD commercial RO systems - restaurants, cafés, dental practices, small businesses
- Multi-membrane residential RO for high-mineral or PFAS-affected supplies
- Whole-house RO installations producing significantly more than 50 GPD
- Light-industrial water treatment at small commercial scale
- Replacement of a failed TYP-4000NA in an existing commercial installation
Key features
- DengYuan TYP-4000NA - premium Taiwanese RO booster pump
- 400 GPD capacity - 4-8× the output of a residential 50 GPD pump
- 24V DC operation, 65W power
- Adjustable bypass pressure (140 PSI default)
- Maximum pressure rating 160 PSI
- 2.5 LPM flow at 80 PSI working pressure
- 3/8" NPT outlet - commercial-grade connection
- Diaphragm pump construction
Recommended for
- Commercial RO systems at 400 GPD production rate
- Multi-membrane residential RO for difficult water supplies
- Whole-house RO installations producing > 50 GPD
- Light-industrial water treatment at small commercial scale
- Replacement of a failed TYP-4000NA in an existing installation
Ready to order?
Order before 12:00pm AEST on a business day for same-day dispatch from Wyong NSW. See shipping details.
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“Best thing I have ever got. Enviro Aqua have now done the water filters at both mine and my mum's house and it's the best thing I've ever had done. Great people and cost effective. Thank you.”
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Australian-owned
Real Wyong NSW warehouse and showroom, with local product support.
Technical sizing information
Capacity, connection and application details are listed to help you choose the correct component.
Replacement components
Compatible accessories and service parts are surfaced where they are relevant to the product.

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