GN 655 Flow Indicator

ELESA Original design HVF Info

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d	l₁	b₁	b₂	l₂	s	max. flow in l/min	max. permissible operating pressure in bar	≈ necessary minimum flow volume Q in l/min Water	Hydraulic oil (HPL 22)	Hydraulic oil (HPL 64)	max. pressure drop due to the flow indicator in bar

G 1/4	66	44	27	22	20	10	25	0,6	2,5	3,5	0,15
G 3/8	92	60	40	36	28	20	15	1,2	3	4	0,25
G 1/2	92	60	40	36	28	40	15	1,2	3	4	0,3
G 3/4	114	70	70	46	46	60	15	2,1	3,7	5	0,17
G 1	114	70	70	46	46	80	12	2,1	3,7	5	0,15

Filter combination produces no result.

Specification

Sight glass
Borosilicate glass (Pyrex^®)

Temperature resistant up to 100 °C
Highest chemical resistance

Rotor

Technopolymer Polypropylene (PP)
RedRT

End pieces

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

Connecting elements
Brass nickel-plated / Steel zinc plated

Sealing ring
Rubber NBR (Perbunan^®)

Plastic Characteristics

RoHS

On request

Rotor in blue color

Threaded bushings with NPT-Thread

Threaded bushings in Stainless Steel AISI 316

Information

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.

How to order