Technical overview

Grundfos Direct Sensors™, type DPI, is a series of

industrial strength differential-pressure transmitters.

The DPI transmitters are compatible with wet,

aggressive media and are available for differentialpressure

ranges from 0 - 0.6 to 0 - 10.0 bar.

The DPI transmitters use MEMS sensing technology in

combination with a new packaging concept with

corrosion-resistant coating on the MEMS sensing

element. This makes the DPI transmitters very robust

and ideal for pump integration and monitoring in harsh

environments.

Applications

• Pumps and pump control systems

• filters (monitoring)

• cooling and temperature control systems

• water treatment systems

• boiler control systems

• renewable energy systems

• heat exchangers (monitoring of fouling).

Features

• Differential-pressure ranges of 0 - 0.6, 0 - 1.0,

0 -1.2, 0 - 1.6, 0 - 2.5, 0 - 4.0, 0 - 6.0 and

0 - 10.0 bar

• designed for harsh environments

• analog output signal

• compact and proven design

• MEMS sensing technology

• approved for the EU, US and Canadian markets.

Benefits

• Compatible with wet, aggressive media

• accurate, linearised output signal

• cost-effective and robust design.

　

Technical overview

Grundfos Direct Sensors™, type RPI, is a series of

industrial strength relative-pressure transmitters

designed to be mounted directly on the unit, for

example a pump. In addition to pressure, the RPI+T

version is able to measure temperatures ranging from

0 to 100 °C.

The RPI has a standard M12 connector.

Applications

• Water treatment and distribution

• light chemical industry

• water management

• pool and water resort

• heating

• air-conditioning

• cooling towers

• condensing units

• solar systems.

Features

• Pressure ranges of 0 - 0.6, 0 - 1.0, 0 - 1.6, 0 - 2.5,

0 - 4.0, 0 - 6.0, 0 - 10.0, 0 - 16.0 and 0 - 25.0 bar.

• Approved for potable water, i.e. WRAS, ACS, others

(pending).

• Wide temperature range of 0 to 100 °C (RPI+T).

Benefits

• No moving parts

• compatible with wet, aggressive media

• cost-effective and robust design

• system solution with Grundfos pumps

• pressure and temperature measurement in one

transmitter (RPI+T).

　

Applications

• Water treatment and distribution

• light chemical industry

• water management

• pool and water resorts

• heating

• air-conditioning

• cooling towers

• condensing units

• solar collectors.

　

Features

• Flow range from 0.3 to 240 m3/h

• based on the vortex principle

• compact and well-proven design

• approved for drinking water

• wide temperature range.

Benefits

• No moving parts

• compatible with wet, aggressive media

• cost-effective and robust design

• system solution with Grundfos pumps.

Approvals

• WRAS

• KTW

• ACS

• NSF 61.