Datasheet

ManualsBrandsGems ManualsFlow SensorsFlow Sensor, 15 ... 75L/min, 7bar

FLOW SWITCHES

FLOW

SWITCHES

www.gems-sensors.co.uk

RotorFlow - RFI-Types, Visual Indicators

ROTOR & TURBINE

Polypropylene Bodies

Metal Bodies

63.5

TWH DP

1/4 77 60 35 20

1/2 77 60 35 22

3/4 100 66 51 27

1 100 66 51 27

125

Adaptors, See Note 1

Notes:

1. Adaptors are supplied fitted to plastic units, sealed

using Teflon (PTFE) tape.

2. If NPT thread is required for plastic units discard

adaptor.

3. For pressure drop curves see RFS page.

OEMS

Specialist designs are available based on your requirements. Please contact Sales Office for

further details on options such as potable water, enhanced chemical capabilities or 4-20mA loop

powered units.

This is RotorFlow in its most basic form – a

BRIGHT ORANGE ROTOR turning with fluid flow.

Simple, direct and reliable.

Flow rate is estimated, or simply confirmed, by viewing the speed of the turning rotor. Either port

may be used for incoming flow, and new bayonet mounting lens is easily removed for quick

cleanout. RFI Type RotorFlow sensors are easy to see, easy to install and easy to afford.

Wetted Materials

Body Polypropylene (Hydrolytically Stable, Glass

Reinforced), SS or Brass

Rotor pin Ceramic

Rotor Moulded Nylon, Colour: High Visibility Orange

Lens Polysulfone

O-Ring Buna N (Metal body = Viton)

Adaptor Acetal (Polypropylene body only)

Max. operating pressure Polypropylene Body: 7 bar

Metal Body: 14 bar

Max. operating temperature Polypropylene Body: 80°C

Metal Body: 100°C

Typical pressure drop See Graph (Page 68)

Specifications

How to Order

Body Port Flow Ranges (l/min) Order Number

Material Size Low Range* Standard Range BSP NPT

1/4" 0.4 to 4.0 2.0 to 20.0 155420BSPP 155420

Polypropylene

1/2" 6.0 to 45.0 15.0 to 75.0

155480BSPP 155480

1/4" 0.4 to 4.0 2.0 to 20.0

142541BSPP 142541

Brass 1/2" 6.0 to 45.0 15.0 to 75.0 142542BSPP 142542

3/4" - - - 20 to 112.5 180392BSPP 180392

1" - - - 30 to 225 181681BSPP 181681

9/16 x 18 UNF 0.4 to 4.0 2.0 to 20.0 N/A 174596

Stainless

Steel 1/2" 6 to 45 15.0 to 75.0 173138BSPP 173138

3/4" - - - 20 to 112.5 181682BSPP 181682

1" - - - 30 to 225 181683BSPP 181683

* With use of low flow adaptor supplied

Applications - Visual only - RFI

There are varied applications, but some of the more common are:

 Plastic injection moulding equipment

 Visual flow on heat exchangers

Applications - Switch/Analogue Output - RFO & RFA

 Lasers

 Medical Equipment

 X-Ray Tubes

 Computers

 Robotic Welding Equipment

 Water Purification/

Dispensing Systems

 Chemical Metering Equipment

 Water Sampling

 Ice Making Machinery

 Water Injection Systems

 Proof of Delivery Systems

Standard Products in bold

Summary of content (4 pages)

PAGE 1
Polypropylene Bodies Applications - Visual only - RFI There are varied applications, but some of the more common are: 60 Plastic injection moulding equipment Visual flow on heat exchangers Applications - Switch/Analogue Output - RFO & RFA Lasers Medical Equipment X-Ray Tubes Computers Robotic Welding Equipment Water Purification/ Dispensing Systems T Chemical Metering Equipment Water Sampling Ice Making Machinery Water Injection Systems Proof of Delivery Systems 8 20 63.
PAGE 2
FLOW SWITCHES RotorFlow - RFO and RFA Types ROTOR & TURBINE High Resolution Black Rotor Ryton composite. Each of the six rotor arms are magnetized. 4.5 - 24 VDC Pulsed Output - RFO 0 - 10 V, RFA Gems Sensors popularised the Rotor-Flow’s paddlewheel design by combining high visibility rotors with solid-state electronics that are packaged into compact, panel mounting housings. They provide accurate flow rate output with integral visual confirmation ... all with an unprecedented price/performance ratio.
PAGE 3
Specifications Wetted Materials Body Rotor Pin Rotor Lens O-Ring Max. Operating Pressure Max. Operating Temperature Electronics Max.
PAGE 4
LEVEL & FLOW Pressure Drop Typical Dimensions (in mm) throughout all options 0.8 0.6 1/4" 1/2" 0.4 0.2 T 60 ROTOR & TURBINE RFA, RFO, RFS Polypropylene Bodies Standard Flow Range Units 3/4" 0 0 4 8 12 16 20 40 60 Flow Rate - (l/min) 80 100 63.5 78 Low Flow Range Units 20 RFA, RFO, RFS DC - 61 RFS AC - 115 125 Adaptors, See Note 2, page 67 1.0 0.6 Metal Bodies 0.4 1/4" 1/2" 0.2 H 0 0 1 2 3 5 10 15 20 Flow Rate - (l/min) 40 T 60 P 63.