S1 Poppet Valve Hydraulic Quick Couplings | ISO 72411A Low Spillage & High Pressure Solutions
If you work with hydraulic equipment, you know how much downtime and leaks can cost you. That’s why at Hejian Honglun Hydraulic Parts Co., Ltd., we’re proud to introduce our S1 Poppet Valve Hydraulic Quick Couplings — built for real‑world performance, easy handling, and long‑term durability across construction, agriculture, and industrial hydraulic systems.
Founded in 2010, we bring more than 15 years of hands‑on experience designing and manufacturing high‑performance hydraulic components. We don’t just make parts — we create dependable connections that keep global industries moving. Our ISO 7241‑1A hydraulic Quick Couplings stand out as a practical, field‑proven choice for operators and maintenance teams alike.
Made from strong carbon steel with zinc‑plating chrome III or zinc‑nickel surface treatment, these couplings resist corrosion and stand up to harsh working environments. You can choose from NBR, EPDM, or FKM seals to match your fluid type and temperature needs, ranging from ‑40°C up to 200°C. Designed with a poppet valve structure, our high pressure poppet valve couplings deliver stable sealing and consistent performance even under heavy working pressures.
| Material | Carbon Steel | ||
| Surface Finishing | Zinc-Plating Chrome III Zinc-Nickel | ||
| Optional seals | NBR | EPDM | FKM |
| Temperature Range | -20°C+110°C | -40°C+150°C | -25°C+200°C |
| Valve Design | Poppet Valve | ||
| Connection | Push | ||
| Standard | ISO7241-1A | ||
| Interchange | Parker6600 DNP PAV Faster ANV Holmbury IA Dixon K Stucchi BIR Eaton 5600 Aeroquip FD56 Snap Tite 61 Voswinkel IA Safeway S56 STAUFF IA Tomco A5600 INTEVA 101 Hansen HA15000 | ||
A big plus is their low spillage hydraulic quick couplings design. Minimal fluid loss during connect and disconnect means cleaner workspaces, less waste, and better safety — something every team appreciates on the job. They feature tool‑free push‑on connection and disconnection, so your crew can swap lines faster and get back to work quickly.
These ISO 7241‑1A hydraulic quick couplings really shine in real applications. As dependable construction hydraulic couplings, they support excavators, bulldozers, cranes, and other heavy machinery, keeping hydraulic cylinders, hoses, and pumps running smoothly. For farms, they serve as reliable agricultural hydraulic couplings for tractors, harvesters, and attachments used in lifting, steering, and field operations. They’re also widely used as industrial hydraulic quick couplings in hydraulic presses, injection molding machines, and test benches where stable, precise fluid connections are a must.
Whether you need heavy‑duty performance on a construction site, consistent reliability in agriculture, or precise control in industrial machinery, our Hydraulic Quick Couplings are built to perform. They’re fully interchangeable with many widely used industry models, making them a flexible, cost‑effective upgrade for your hydraulic systems.
At Hejian Honglun Hydraulic Parts Co., Ltd., quality and practicality come first. Our S1 series combines sturdy materials, smart design, and ISO‑standard compliance to give you worry‑free performance you can trust. If you’re looking for durable, easy‑to‑use, low‑spillage hydraulic quick couplings, our S1 Poppet Valve series is ready to connect your success.
