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The Newton NP400 and NP750 are a range of high quality clean water pumps, suitable for the removal of ground water from basements and cellars.

The unique vertical operation float switch ensures that the pumps operate within their footprint, removing the possibility of the float snagging during operation and allowing the pumps to be used within smaller sumps. The vertical float switch is also very flexible, allowing the pump switching height to be adjusted both in terms of the height between the ‘on’ and ‘off’ positions, as well as the height relative to the pump.

The Newton NP400 is suitable for use with Newton Victron Power Inverter 12/1200/50 to give continual pumping even during power outage, while the Newton NP750 can be used with the Newton Victron Power Inverter 12/3000/125.

Supplied in both manual and automatic versions and can be purchased as pumps only, or as a key component in Newton packaged pumping systems.

Features and benefits:

  • Suitable for use with 50 mm or 63 mm pressure rated pipe and fittings.
  • Thermal overload protection against motor burnout.
  • Non-clogging vortex impeller.
  • Double mechanical seals ensure increased durability against particle abrasion and wear.
  • Anti-airlock impellor housing ensures that the pump is able to remove trapped air even when the sump was previously dry.
  • High performance and efficiency even with a low current.
  • Unique vertical float allows complete adjustment of the start and stop heights.
  • Provides continued pumping even during power cuts when used with Newton Power Converters.
  • Supplied with pipe fittings. Also supplied with one-way-valves, which are designed to screw directly into the pump body.
  • Three year manufacturer warranty. Five year warranty available if serviced at regular intervals by approved engineers.

Applications:

Primarily designed to be used with Newton sump systems for the removal of ground water collected by Newton System 500 basement waterproofing system. Newton NP pumps can also be used for the removal of water from:

  • Flooded basements and cellars.
  • Light-wells.
  • Surface drainage collection vessels.
  • Reservoirs and water holding vessels.

Related literature

The following content references this product:

Standard product features

Size (l x w x h):

  • NP400: 241 x 185 x 328 mm.
  • NP750: 236 x 173 x 380 mm.

Weight (dry):

  • NP400: 11.3 kg.
  • NP750: 8.5 kg.

Material:

  • Body: Stainless steel and cast aluminium.
  • Shaft: Grade 403 stainless steel.

Technical characteristics:

  • Pump design: NP400: Semi-vortex; NP750: Vortex.
  • Outlet: 50 mm.
  • Maximum soft solids handling: NP400: 7 mm; NP750: 35 mm.
  • Recommended discharge pipe size: NP400: 50/ 63 mm; NP750: 63 mm.
  • Maximum pumping head: NP400: 12.2 m; NP750: 12.5 m.
  • Maximum flow rate: NP400: 220 L/min; NP750: 360 L/min.
  • Flow rate (at 4 m head): NP400: 160 L/min; NP750: 320 L/min.
  • Pump switching: Automatic by pump float or by separate pump control.
  • Float switch: Fully adjustable vertical operation.
  • Pump start level: Fully adjustable.
  • Lowest/ Stop water level: NP400: 90 mm; NP750: 115 mm.
  • Fluid temperature range: 0–40°C.
  • Power supply (single phase): 230 V.
  • Motor output: NP400: 400 W; NP750: 750 W.
  • Start current: NP400: 6.83 A; NP750: 28 A.
  • Rated current: NP400: 2.6 A; NP750: 6.7 A.
  • Mechanical seals: NP400: Carbon ceramic; NP750: Silicon carbide on ceramic.

Options

Power converter:

The Victron Inverter/ Charger units draw 12 V power from a single or a bank of 12 V batteries which is inverted into clean, pure sine wave, 230 V power to ensure that the Newton Pump continues to operate even during a power outage.

Control panel:

The panel features interface for use with Newton battery back-up and telemetry systems as well as connections to whole house alarm and monitoring systems. The control panel PCB is split with two separate circuits, ensuring that pumping will continue even if one of the control circuits should fail.

NBS Specification

NBS Create logo
This product is associated with the following NBS Create clause:
90-10-70/430 Submersible pumps

Product specification

An important note about specifying

Manufacturer

Name:

Newton Waterproofing Systems

Tel:

+44 (0)1732 360095

Product reference

[Newton NP400 Clean Water Pump (P2)]
-
High head and high to medium performance pump. Automatic switching.
[Newton NP400 Clean Water Pump (P3)]
-
High head and high to medium performance pump. Manual switching.
[Newton NP750 Clean Water Pump (P5)]
-
High head and high performance pump. Automatic switching.
[Newton NP750 Clean Water Pump (P6)]
-
High head and high performance pump. Manual switching.

Pipework

[50 mm pressure rated]
[63 mm pressure rated]
-
For NP750 only. Consult manufacturer for details.

Battery back-up

[Not Required]
[MultiPlus 12/1200/50 (BB2)]
-
Battery back-up facility for pumps of 400 W.
[MultiPlus 12/3000.120 (BB3)]
-
Battery back-up facility for pumps of 750 W.
[Quattro 12/3000/120 (BB4)]
-
Battery back-up facility for all pumps up to 750 W.

Power converter

[1200 W (C1)]
-
Battery back-up facility for pumps of 150 W and 400 W.
[1200 W (C3)]
-
As C1, including a 115 A/H deep cycle leisure battery, a secure battery box, and the power leads for connection to the mains and the battery
[3000 W (C2)]
-
Used with single pumps with power outputs of up to 750 W only or with dual pumps of 400–750 W when switched by a Newton Control Panel.
[3000 W (C4)]
-
As C2, including a 115 A/H deep cycle leisure battery, a secure battery box, and the power leads for connection to the mains and the battery.

Standby batteries

[Northstar NSB 100FT (BB21)]
[Northstar NSB 190FT (BB22)]

Control panel

[Newton Control Panel Pro (CP2)]
-
Supplied with a vertical water level float switch and water high alarm float switch.
[Newton Control Panel Pro & pre-fitted Newton Dialer (CP7)]
-
Supplied with a vertical water level float switch and water high alarm float switch.
[Newton Pump Controller (CP9)]
-
Supplied with a vertical water level float switch and water high alarm float switch.
[Sewage Control Panel]
-
Twin pump panel with alarm for sewage systems.

High water level alarm

9 V battery (PA50) - Switch not suitable for regular contact with sewage.

Text and speech dialler

[Not required]
[Newton Dialer (PA5)]
-
Can send either text or voice messages to up to five designated phones should an alarm condition occur.

Manufacturer details

Newton House,
17-20 Sovereign Way,
Tonbridge,
Kent, TN9 1RH
Tel +44 (0)1732 360095
Fax
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NBS National BIM Library
RIBA CPD