Series 526 is a family of quick couplings for hydraulic systems. A manually operated locking ring provides extra security against involuntary disconnection. All parts in both couplings and nipples are made of stainless steel for maximum durability in tough applications and environments.

The Series is also available in four other sizes: DN 6.3 (1/4"), DN 10 (3/8"), DN 12.5 (1/2") and DN 25 (1"). For a steel version see Series 525.

Download drawings/3dmodels

Technical data
Nominal flow diameter:	20 mm (3/4")
Rated flow:	250 l/min (55.0 GPM UK)
Max. working pressure connected:	20.0 MPa
Max. working pressure disconnected:	20.0 MPa
Min. burst pressure connected:	100.0 MPa
Min. burst pressure disconnected:	80.0 MPa
Temperature range:	-20°C — +205°C (-4°F — +401°F)
Material coupling:	Stainless steel, AISI 316
Material nipple:	Stainless steel, AISI 316
Material seal:	Viton (FPM)
Connectability:	Without pressure
Disconnection under pressure:	Not allowed

Rated flow is measured at 0.4 MPa pressure drop.

Pressure drop chart

Pressure drop, MPa

Flow l/min, (GPM UK)

couplings	Part No.	Connection	Length	Diameter	Hexagon	Seal
Female thread	105261217	G 3/4"	76.2	52	38	FPM

Nipples	Part No.	Connection	Length	Diameter	Hexagon	Seal
Female thread	105266217	G 3/4"	47	39	36	FPM

Thread connections are listed according to ISO Standards. All measurements are in mm. Check with an authorized CEJN distributor for availability and prices.

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Series 526, DN20

Hydraulic Products

Nordic Range / 526 - Stainless steel High Performance Poppet Type Couplings

Series 526, DN20

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