JW Winco

Our customers in the USA are serviced by JW Winco. Please, use the website jwwinco.com

GN 655 Flow Indicators Plastic


GN 655 Flow Indicator, Plastic
ELESA original design
code: HVF

Product description


When flow indicators GN 655 are used, a rotor rotates above a minimum volume flow rate Q, depending on the medium and its viscosity. The flow rate is visible from all sides.

Flow indicators GN 655 have a high chemical resistance and are also suitable for liquids containing glycol. Please contact us if you need any additional information about media and pressure resistance. The flow indicators can be used in temperatures of up to 100 °C.

The flow indicator can be mounted in any position. The direction of flow and the installation position are irrelevant.


Sight glass
Borosilicate glass (Pyrex®)

  • Temperature resistant up to 100 °C
  • Highest chemical resistance


  • Technopolymer Polypropylene (PP)
  • RedRTRT

End pieces

  • Technopolymer Polypropylene (PP)
  • Black, matte finish
  • Threaded bushings brass

Connecting elements
Brass nickel-plated / Steel zinc plated

Sealing ring
Rubber NBR (Perbunan®)


On request

Rotor in blue color
Threaded bushings with NPT-Thread
Threaded bushings in Stainless Steel AISI 316

Technical drawing

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GN 655 Flow Indicator, Plastic sketch

Article options / Table

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dl1b1b2l2smax. flow in l/minmax. permissible operating pressure in bar≈ necessary minimum flow volume Q in l/min

Hydraulic oil
(HPL 22)
Hydraulic oil
(HPL 64)
max. pressure drop due to the flow indicator in bar
G 1/4664427222010250.
G 3/8926040362820151.2340.25
G 1/2926040362840151.2340.3
G 3/41147070464660152.13.750.17
G 11147070464680122.13.750.15

Build & Price

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Inch thread d

Selected Part (How to order)

Total (net)
plus VAT 8,60 €
gross 53,88 €
In stock
ELESA Code: 111301
Description: HVF.66-1/4
Weight: 0,074 kg
If this article is new in our product range, it may happen that details concerning weight are as yet not listed.
If you do need weight details, please contact our Sales Department!
Phone +49 7723 6507 - 0
RoHS: Yes
This article is RoHS-compliant in application of Annex III., which means it complies with EU Directive 2011/65/EU, including extension (2015/863/EU), for restricting the use of certain hazardous substances in electrical and electronic devices. The Directive regulates the use of hazardous substances in devices and components. The implementation in national law is summarily described with RoHS(Restriction of (the use of certain) hazardous substances).
Please note our order discounts.
With a total value (net) per order:
from 175,00 € -> 10 % discount
from 275,00 € -> 20 % discount
from 375,00 € -> 30 % discount

Surcharge for small volume purchases:
-> 15,00 Euro
for value of goods less than 25,00 €
-> 10,00 Euro
for value of goods from 25,00 to 49,99 €
All prices in accordance with our price list No. 55, valid from 1 September 2022, plus VAT only valid for Germany.

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Our service team is available from Monday to Friday between 7:00 AM and 5:30 PM: +49 7723 6507 - 0

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