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Series 525, DN6.3

  • Manual locking ring for extra security
  • High durability
  • Sturdy design

 

Series 525 is a family of quick couplings for hydraulic systems. A manually operated locking ring provides extra security against involuntary disconnection. Both couplings and nipples are made of steel with Zinc-Nickel surface for maximum durability in tough applications and environments.

 

The Series is also available in four other sizes: DN 10 (3/8″), DN 12.5 (1/2″), DN 20 (3/4″) and DN 25 (1″). For a stainless steel version see Series 526. Available are also a version with viton seals and a free flow version (without valve package).

Technical data

Temperature range: -30°C — +100°C (-22°F — +212°F)
Material coupling: Steel (zinc-nickel)
Material nipple: Hardened steel (zinc-nickel)
Material seal: Nitril (NBR) alt. FPM
Connectability: Without pressure
Disconnection under pressure: Not allowed
Max. working pressure connected: 450 bar (6526 PSI)
Max. working pressure disconnected: 300 bar (4351 PSI)
Min. burst pressure connected: 1800 bar (26106 PSI)
Min. burst pressure disconnected: 1200 bar (17404 PSI)

Rated flow is measured at 0.4 MPa pressure drop.

Couplings Part No. Connection Length Diameter Hexagon Seal
Female thread 10 525 1202 G 1/4″ 60 26 21 NBR
10 525 1212 G 1/4″
Couplings without valve Part No. Connection Length Diameter Hexagon Seal
Female thread 10 525 0202 G 1/4″
Nipples Part No. Connection Length Diameter Hexagon Seal
Female thread 10 525 6202 G 1/4″ 48.2 21 19 NBR
10 525 6212 G 1/4″
Nipples without valve Part No. Connection Length Diameter Hexagon Seal
Female thread 10 525 5202 G 1/4″