VKS, VK3 // with pipe tee

Product catalog summary

Overview: This technical datasheet from SIKA Dr. Siebert & Kühn GmbH & Co. KG provides detailed specifications for the VKS and VK3 series flow switches, designed for special applications with PVC pipe tees.

Specifications:

Material: The flow switches are made with a plastic version using PVC tees, available in nominal diameters (DN) ranging from 15 to 50.
Switching Function: The contact closes at increasing flow and opens at decreasing flow, with the option for reversing.
Pressure Rating: PN 10.
Temperature Ranges: Medium temperature ranges from 0 to 20°C (PN 10) and 0 to 60°C (PN 2.5). Ambient temperature ranges from 0 to 60°C.
Electrical Data: Includes a plug connector DIN EN 175301-803-A with a cable socket, supporting a maximum switching current of 1 A and a maximum switching voltage of 230 VAC or 48 VDC.
Protection: Degree of protection is EN 60529 IP65, and protection class is EN 60730-1 Class II.

Performance:

Setpoint Ranges: The datasheet provides specific setpoint ranges for increasing and decreasing flow rates for each nominal diameter, with maximum flow rates also specified.
Pressure Drop: A graph illustrates typical pressure drops across different nominal diameters.

Materials:

Body and Paddle: Made from PPE+PS NorylTM with 30% glass fiber reinforcement.
Pipe Tee: Made from PVC.
Pin: Made from stainless steel 1.4571.
Magnet: Made from hard ferrite.
Gasket: Made from EPDM.

Dimensions: Detailed dimensions are provided for each nominal diameter, including measurements for D1, L1, L2, H1, and H2 for both VKS and VK3 models.

Ordering Information: The datasheet includes order codes for different configurations, including options for plug connectors with or without LED indicators and 4-pin sensor plugs.

Catalog excerpts

Flow monitoring  Flow switches Your advantages Series VKS / VK3 • Plastic version with PVC tee for special applications • PVC tees DN 15…50 Technical data Switching function Pressure rating Options Contact  closes at increasing flow  opens at decreasing flow Reversing possible Temperature ranges Medium Ambient  Plug connector DIN EN 175301-803-A incl.cable socket with two LED for switching voltages 24 V...230 V AC/DC ±20 %,  or 4-pin-sensor plug M12 x 1 On request  Special setpoints  4 different colours of the union nut for distinction  Recognized component ETL according to UL & CSA standards Electrical data Electrical connection  VKS Plug connector DIN EN 175301803-A incl. cable socket 1.5 m PVC jacket cable Switching current Switching voltage Degree of protection EN 60529 IP65 Protection class EN 60730-1 SIKA Dr. Siebert & Kühn GmbH & Co. KG Struthweg 7-9 // 34260 Kaufu

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Flow monitoring  Flow switches Nominal diameter Setpoint ranges [l/min]* Increasing flow ON Max. flow rate [l/min] Decreasing flow OFF * Water, 20 °C, horizontal pipe, tolerance ±15 % ** The values in brackets are valid for shortened paddles Typical pressure drop 300 Flow rate [l/min] SIKA Dr. Siebert & Kühn GmbH & Co. KG Struthweg 7-9 // 34260 Kaufungen // Germany www.sika.net

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Flow monitoring  Flow switches Dimensions [mm] Nominal diameter Materials in contact with fluid Body, Paddle PPE+PS NorylTM 30 % glass fibre reinforced Hard ferrite SIKA Dr. Siebert & Kühn GmbH & Co. KG Struthweg 7-9 // 34260 Kaufungen // Germany www.sika.net

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Flow monitoring  Flow switches Order code Type VKS Plug connector incl. cable socket (standard) Plug connector incl. cable socket with LED (option) 4-pin-sensor plug M12 x 1 (option) VK3 1.5 m PVC jacket cable Example order number SIKA Dr. Siebert & Kühn GmbH & Co. KG Struthweg 7-9 // 34260 Kaufungen // Germany www.sika.net

Open the catalog to page 4

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