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Riels Instruments
RIV165 Paddle Flow Switches

RIV165 Paddle Flow Switches

Product catalog summary

Overview: The document provides technical specifications and ordering information for the Riels paddle type flow switch, model RIV165, designed for water flow monitoring with max/min flow alarms and SPDT switch output.

Specifications:

Horizontal mounting with a single switching unit; optional dual SPDT switches available.
Fixed set point and differential with ±5% repeatability.
Maximum temperature: 135˚C.
Pressure: Refer to flange ratings; maximum pressure drop is 500 mm H2O.
Minimum pipe diameter: DN 100.
Special versions available for air flow.

Technical Features:

Dimensions and weight vary by model, ranging from 6 kg to 32 kg.
Standard flanges: UNI PN 10/ANSI 150 RF; higher ratings available on request.

Enclosures:

Available in waterproof (WP) and explosion-proof (EP) types.
Material: Aluminum with various electrical connection options.
Protection degree: IP 66.

Switch Types:

Mercury, dry microswitch, and pneumatic switches available.
Various load ratings and configurations, including waterproof and sealed options.

Materials:

Body: Carbon steel.
Paddle and leverage: AISI 316.

Ordering Information:

Specify model, body material, paddle material, switch type, and enclosure type.
Include operational temperature, pressure, flow rate, and required switching in the order.

Catalog excerpts

FLOW ALARM SWITCHES Floating tray flow switch Riels paddle type flow switch for water, with max. or min. flow alarm, with a single switching unit, and with output on SPDT switch. Technical features All data and contents of this sheet are the exclusive property of Riels Instruments Horizontal mounting Single switching unit (on request, two SPDT switches with simultaneous action can be supplied) Fixed set point Fixed differential Repeatability of set point ± 5% Max. temperature 135˚C Pressure: see rating for flanges Max. pressure drop 500 mm H2O Used for pipe of min. DN 100 Special versions made for air flow UNI PN 10/ANSI 150 RF standard "C" flange. Flanges with higher ratings are supplied on request

Open the catalog to page 1

Used Materials Carbon Steel CorpoBody Paddle and Leverage Mercury Switch Load Rating Pneumatic Switch* 125 V c. a. 1 A 28 V c. c. 1 A waterproof with gold contacts 250 V c. a. 1 A 24 V c. c. 3 A sealed with inert gas PN = Brass PN1 = Stainless Steel All data and contents of this sheet are the exclusive property of Riels Instruments *Air inlet and output connection 1/4” NPT-F - No bleed type Available Enclosures (WP) enclosures can be supplied with cable gland or 3-pin / 7-pin connector according to MIL standards. (EP) enclosures can be supplied with explosion-proof gland. Type Alluminium 1/2”...

Open the catalog to page 2

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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