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ISO 7241-A Hydraulic Quick Couplings – KIS-A Series
The ISO 7241A Quick Couplings from the POOLKE KIS-A Series is designed for reliable hydraulic connection in agricultural machinery, construction equipment and industrial hydraulic systems. Manufactured according to ISO 7241-1 Series A standards, this series provides excellent interchangeability with widely used ISO A profile couplings and nipples.
Featuring a durable ball-locking mechanism, hardened components and reliable poppet valve sealing, the KIS-A Series ensures secure connection, low leakage and long service life in demanding hydraulic applications. The ISO 7241A Quick Coupling is available with different materials, thread configurations and sealing options to meet various equipment requirements.
Key Features
ISO 7241-A Standard Compatibility
Designed according to ISO 7241-1 Series A requirements, providing reliable interchangeability with standard ISO A hydraulic coupling systems.
Durable Ball Locking Mechanism
The precision ball-locking structure ensures secure engagement between coupling and nipple, improving connection reliability during operation.
Hardened Components for Extended Service Life
The sleeve and nipple are hardened to improve resistance against mechanical shock, wear and deformation caused by repeated coupling cycles.
Reliable Poppet Valve Sealing
The captive valve seal design securely retains the seal inside the metal poppet, reducing the risk of seal washout caused by high-velocity hydraulic fluid.
High Pressure Sealing Support
An optional PTFE backup ring is available to improve sealing stability and prevent seal extrusion in higher-pressure hydraulic environments.
Flexible Material and Thread Options
Available in zinc chromate plated steel, brass and stainless-steel versions, with BSPP and NPT thread options for different hydraulic system requirements.
Applications
The ISO 7241A Quick Coupling is suitable for:
- Agricultural machinery
- Construction equipment
- Excavators and loaders
- Forestry machinery
- Hydraulic attachments
- Mobile hydraulic systems
Technical Overview
| Standard | ISO 7241-1 Series A | Nipple Material | Hardened Steel |
| Valve Type | Poppet Valve | Available Materials | Steel / Brass / Stainless Steel |
| Locking Type | Ball Locking | Seal Material | NBR |
| Connection Type | Threaded Connection | Size Range | 1/4" – 2" |
| Material | Zinc Chromate Plated Steel | Temperature Range | -20°C to +100°C (depending on seal material) |
Interchangeability
Cross-reference examples include:
- Parker 6600 Series Type
- Nitto 280 Series Type
- Hansen HA15000 Series Type
- Foster A Series Type
- Faster ANV Series Type
- CEJN X95 Series Type
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