If you’re working with hydraulic systems and looking for a clean, leak-free, and reliable connection, ISO 16028 flat face quick couplers are one of the best choices available. In this guide, we’ll walk you through what they are, how they work, and why they’re trusted across various industries like construction, forestry, oil & gas, and industrial machinery.
What Are ISO 16028 Flat Face Hydraulic Couplers?
ISO 16028 is an international standard that defines the design and performance requirements for flat face hydraulic quick couplers. These couplers are specifically designed to reduce or eliminate fluid loss during disconnection, thanks to their flat sealing surfaces. This design helps prevent contamination and makes them incredibly easy to clean, even in demanding environments.
Unlike traditional couplings that may spill oil or allow dirt to enter the system, flat face couplers provide a safer, cleaner, and more efficient solution. They are often used in mobile equipment and hydraulic tools where cleanliness and ease of use are key.
Available Sizes and Compatibility
ISO 16028 now officially covers a range of sizes from 1/4 inch up to 2 inches, thanks to the updated version of the standard introduced in 2021. Previously, only sizes from 1/4″ to 1″ (ISO16028:1999) were covered under the standard, and larger sizes like 1-1/2″ and 2″ were offered by manufacturers but not standardized. With the revision, sizes 1-1/4″, 1-1/2″, and 2″ are now fully defined within ISO 16028 (ISO 16028:2021 and ISO 16028:2023), offering broader compatibility across brands.
That said, always verify dimensional compatibility when mixing components from different manufacturers—especially for legacy systems or couplings produced before the update. This ensures a proper seal, safe performance, and interchangeability.
For special applications, some manufacturers (like us!) also provide custom sizes such as 1/8”(interchange with DNP PLT4) for compact hydraulic tools or 3” for large industrial connections.
ISO 16028 Quick Couplings Benefits
Here’s why so many professionals rely on ISO 16028 quick disconnect couplings:
- Leak-Free Connection: These flat face couplers are designed to eliminate fluid leaks and are suitable for disconnecting under pressure.
- Super Easy to Clean: The product has a super flat surface, which makes it easy to wipe clean and maintain cleanliness at all times.
- User-Friendly Operation: The connection is designed for easy operation in a smooth and tight manner, which helps prevent dirt from entering the hydraulic system.
- Contamination Control: They help prevent dirt from entering the hydraulic system.
- Strong Construction: Manufactured to withstand high pressure and difficult working conditions
Best Practices for Installation and Maintenance
To ensure long-lasting performance:
- Always clean both coupling halves before connecting to avoid contamination.
- Inspect regularly for signs of wear or damage.
- Use dust caps when couplers are not in use to protect from dirt and debris.
- Avoid using damaged or corroded couplers—they can cause leaks and reduce system efficiency.
Our Range of ISO 16028 Couplers
We offer a complete line of ISO 16028 flat face hydraulic couplings to meet the needs of various industries:
- Standard Carbon Steel Couplers: Designed for general-purpose applications, with robust construction and Trivalent Zinc Plating or zinc-nickel coating for corrosion resistance. (FF Series)
- High-Pressure Couplers: Rated up to 5,000 PSI (35 MPa), suitable for heavy-duty tasks like construction, demolition, and forestry.
- Pressure-Relief Options: Couplers that connect even under trapped pressure—ideal for attachments that build residual pressure during use. FFP Series
- Anti-Brinelling Designs: Specially treated components to resist deformation under high-frequency vibration and pressure spikes (e.g., hydraulic hammers). (SCF Series)
- Stainless Steel Couplers: Perfect for marine, coastal, or chemical environments, and compatible with water or glycol-based fluids. (FFS Series)
Need a Clean, Reliable Hydraulic Connection?
Our ISO 16028 flat face quick couplings are tested for quality, built for performance, and made to handle the toughest conditions. Whether you’re in construction, agriculture, or industrial maintenance, we have the right solution for your system.
👉 Browse Our ISO 16028 Couplers Now
Upgrade your hydraulic connections with durable, easy-to-use flat face couplings.