Sump pumps are submersible electric pumps for water removal from below-ground structures such as basements, cellars, and drainage sumps. The range covers groundwater, surface water, foul water, and grey water applications. All models operate on 230 VAC single-phase supply and are designed for use within Type C cavity drainage waterproofing systems as defined by BS 8102:2022.Five standalone models in three capacity tiers:

Groundwater / Surface Water Pumps (V3, V4, V6)

  • Suitable for clean or lightly contaminated water from cavity drainage systems.

  • Magnetic float switch for automatic operation (with optional locking disc for manual or panel control).

  • Not suitable for foul or waste water.

Foul / Grey Water Pumps (Foul V3 Automatic and Foul V3 Manual)

  • Suitable for waste water containing solids up to 45 mm from sanitary fixtures and extensions.

  • Free-flowing impeller and larger discharge.

  • Not suitable for groundwater collection from cavity drainage systems.

Key Specifications

Delta V3 (DMS 116-1)

  • Motor: 180 W

  • Max flow: 2.9 l/s

  • Max vertical: 6.8 m

  • Discharge: 1¼" BSP

  • Free passage: 10 mm

  • Weight: 5.2 kg

  • Cable: 10 m

Delta V4 (DMS 216-1)

  • Motor: 360 W

  • Max flow: 3.3 l/s

  • Max vertical: 10 m

  • Discharge: 1¼" BSP

  • Free passage: 10 mm

  • Weight: 6.0 kg

  • Cable: 5 m

  • Free-standing installation.

Delta V6 (DMS 084-1) – Heavy Duty

  • Motor: 500 W

  • Max flow: 3.9 l/s

  • Max vertical: 12.5 m

  • Discharge: 1¼" BSP

  • Free passage: 10 mm

  • Weight: 6.9 kg

  • Free-standing installation. Suitable for deeper basements.

Delta Foul V3 Automatic (DMS 120-1)

  • Motor: 750 W

  • Max flow: 6.3 l/s

  • Max head: 12 m

  • Discharge: DN50 (2")

  • Solids clearance: 45 mm

  • Weight: 23.0 kg

  • Cable: 10 m

  • Control panel operation.

Delta Foul V3 Manual

  • Same performance as Automatic version.

  • Integral float switch for standalone operation.

  • Weight: 23.0 kg.

Range Comparison

Model

Code

Application

Motor

Max Flow

Max Vertical

Discharge

Control

Weight

V3

DMS 116-1

Ground/Surface

180 W

2.9 l/s

6.8 m

1¼" BSP

Auto/Manual

5.2 kg

V4

DMS 216-1

Ground/Surface

360 W

3.3 l/s

10 m

1¼" BSP

Auto/Manual

6.0 kg

V6

DMS 084-1

Ground/Surface

500 W

3.9 l/s

12.5 m

1¼" BSP

Auto/Manual

6.9 kg

Foul V3 Auto

DMS 120-1

Foul/Grey

750 W

6.3 l/s

12 m

DN50 (2")

Control Panel

23 kg

Foul V3 Manual

DMS-E029

Foul/Grey

750 W

6.3 l/s

12 m

DN50 (2")

Integral Float

23 kg

Standards & ComplianceAll models are CE marked and comply with:

  • BS 8102:2022 (Type C drained protection)

  • Machinery Directive 2006/42/EC

  • EMC Directive 2014/30/EU

  • EN 809, EN 60034, EN 60335, ISO 12100

Foul V3 models also comply with RoHS Directive 2011/65/EU.