Grundfos JP Pumps
Grundfos JP4-54 230v 99458789 female thread
- Established 1975
- Trusted by thousands of customers
Grundfos JP4-54 230v – 99458789
Grundfos JP 4-54 is a self-priming single-stage centrifugal jet pump with axial inlet and radial outlet for easy adaption to local piping system. The JP pump is ideal for transferring water from wells or ground tanks in a large variety of installations and it has excellent suction capacity.
The JP pump is designed for a long and trouble-free operation. The overall design is robust with excellent corrosion resistance ensured by the stainless steel pump housing, composite impeller and paint application by electrophoresis. JP is small and compact with a lifting handle that makes the pump handy and easy to carry. The compact pump features a build in ejector with guide vanes. This ensures optimum self-priming properties, featuring a suction-lift up to 8 meters.
The self-priming pump also ensures a stable operation as is it able to lift liquid from below the inlet level and can handle a mix of air and liquid until the pump reaches a fully-primed pumping condition.
The JP pump has built-in thermal protection, which immediately stops the pump if it overheats. The motor is air cooled and equipped with oversized, sealed, greased-for-life ball bearings to ensure silent operation and minimum service.
More about this product
| Liquid: | |
| Pumped liquid: | Water |
| Liquid temperature range: | 0 .. 40 °C |
| Selected liquid temperature: | 20 °C |
| Density at selected liquid temperature: | 998.2 kg/m³ |
| Technical: | |
| Rated flow: | 4 m³/h |
| Primary shaft seal: | BBVP |
| Approvals on nameplate: | CE,EAC |
| Curve tolerance: | ISO9906:2012 3B |
| Rated driver speed: | 2800 rpm |
| Materials: | |
| Pump housing: | Stainless steel |
| EN 1.4301 | |
| AISI 304 | |
| Impeller: | Composite |
| Installation: | |
| Range of ambient temperature: | 0 .. 40 °C |
| Maximum operating pressure: | 6 bar |
| Maximum permissible inlet pressure: | 1 bar |
| Pump inlet: | G1 |
| Pump outlet: | G1 |
| Electrical data: | |
| Power input – P1: | 1130 W |
| Rated power – P2: | 0.746 kW |
| Mains frequency: | 50 Hz |
| Rated voltage: | 1 x 230 V |
| Rated current: | 5.1 A |
| Starting current: | 17.8 A |
| Capacitor size – run: | 16 µF/450 V |
| Enclosure class (IEC 34-5): | IP44 |
| Insulation class (IEC 85): | F |
| Type of cable plug: | SCHUKO |
| Others: | |
| Net weight: | 11 kg |
| Gross weight: | 12 kg |
| Shipping volume: | 0.026 m³ |
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Standard delivery:
Standard delivery is free on most orders. Some items may incur a delivery charge depending on weight, size or value. Any applicable charge will be displayed at checkout.
Deliveries will typically be made between 7am and 6pm, Monday to Friday (excluding public holidays).
Next day delivery:
Next working day delivery is available for a £16.50 + VAT delivery charge.
Orders must be placed before 12 noon to qualify for next working day delivery. Orders placed after 12 noon on Thursday but before noon on Friday will be delivered the following Monday. Orders placed after 12 noon on Friday will be delivered on Tuesday.
Pallet/Large/Difficult items:
Some large, heavy or difficult to transport items may incur an additional delivery charge. Please contact us for a delivery quote before ordering.
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Frequently Asked Questions
Quick answers to common questions about the Grundfos JP4-54 230v 99458789 female thread. For technical specifications, see the product details above; for sizing or installation advice, contact our team. If you have any other questions, we're happy to help.
What is a water booster pump?
A water booster pump increases the pressure of an existing water supply to give stronger flow at taps, showers and appliances. It can be a small inline pump fitted to the incoming mains, or a larger pump and tank set that draws from a break tank to feed the whole house. Boosters do not create water – they raise the pressure of the water already coming in.
What is the difference between an inline booster and a tank-and-pump booster?
An inline booster connects straight onto the incoming mains and is limited to 12 litres per minute under UK water regulations – examples include the Salamander HomeBoost and WaterBoost WB-Compact. A tank-and-pump booster, such as the Grundfos Home Booster or DAB Esybox with Esytank, draws from a break tank and can deliver much higher flow rates for larger homes with multiple bathrooms.
What is a variable speed booster pump?
A variable speed booster uses an inverter to adjust pump speed in real time to match demand. It maintains constant pressure as outlets open and close, runs more quietly than a fixed-speed pump and typically saves up to 50 per cent of the energy a fixed-speed equivalent would use. The DAB Esybox, DAB Esybox Mini 3 and Grundfos Scala2 are common variable speed examples.