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Series 525, DN12.5

  • Manual locking ring for extra security
  • High durability
  • Optional pressure eliminator

 

Series 525 is a family of quick couplings for hydraulic systems. A manually-operated locking ring provides extra security against involuntary disconnection. Series 525 couplings and nipples have a pressure eliminator as an extra feature for evacuating residual pressure during connection. Both components 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 6.3 (1/4″), DN 10 (3/8″), 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: Part under pressure equipped with eliminator, other part free to drain.
Disconnection under pressure: Not allowed
Max. working pressure connected: 300 bar (4351 PSI)
Max. working pressure disconnected: 250 bar (3625 PSI)
Min. burst pressure connected: 1100 bar (15954 PSI)
Min. burst pressure disconnected: 1000 bar (14503 PSI)

Rated flow is measured at 0.4 MPa pressure drop.

Couplings Part No. Connection Length Diameter Hexagon Seal
Female thread 10 525 1205 G 1/2″ 67.6 41 33 NBR
10 525 1215 G 1/2″
Couplings without valve Part No. Connection Length Diameter Hexagon Seal
Female thread 10 525 0205 G 1/2″ 67.6 41 30 NBR
Couplings with pressure eliminator Part No. Connection Length Diameter Hexagon Seal
Female thread 10 525 1235 G 1/2″ 67.6 41 33 NBR
Nipples Part No. Connection Length Diameter Hexagon Seal
Female thread 10 525 6205 G 1/2″ 42.5 29 27 NBR
10 525 6215 G 1/2″
Nipples without valve Part No. Connection Length Diameter Hexagon Seal
Female thread 10 525 5205 G 1/2″ 42.5 29 27
Nipples with pressure eliminator Part No. Connection Length Diameter Hexagon Seal
Female thread 10 525 6235 G 1/2″ 42.5 29 27 NBR