FF Flat Face Hydraulic Quick Couplings
FF Series couplings meet or exceed ISO 16028 design and performance requirements. The flat valves eliminate spillage and air inclusion when connecting and disconnecting.
Coupler and nipple bodies have a modular design with increased flexibility for end port options.
Application
Features
ISO 16028 flat face hydraulic quick couplings are designed for hydraulic systems where low fluid spillage, easy cleaning and reliable connection are important.
The flush-face valve design helps reduce fluid loss and limits the amount of air and contamination entering the hydraulic circuit during connection and disconnection.
HLFLUID supplies flat face hydraulic couplings for construction machinery, agricultural equipment, hydraulic tools, mobile equipment and industrial hydraulic systems.
The FF series is suitable for applications where operators frequently connect and disconnect hydraulic lines and need a clean, easy-to-maintain connection.
Material |
Carbon Steel |
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Surface Finishing |
Zinc-Plating Chrome III Zinc-Nickel |
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Optional seals |
NBR |
EPDM |
FKM |
Temperature Range |
-20°C+110°C |
-40°C+150°C |
-25°C+200°C |
Valve Design |
Flat Valve |
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Connection |
Push |
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Standard |
ISO16028 |
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Interchange |
PARKER FEM FASTER 3FFH STUCCHI FIRG AEROQUIP FD89 Safeway S56 Tomco FE Eaton FF STAUFF FF Holmbury HP Dixon HT DNP PLT Voswinkel FF SNAP-TITE 74 CEJN X |
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Specifications
Series |
DN |
ISO size |
Working Pressure |
Working Pressure |
Bursting Pressure |
Spillage |
|||
inch |
iso 4397 |
l/min |
US GPM |
Mpa |
Male |
Female |
Coupled |
ml |
|
FF-02 |
1/4" |
6,3 |
12 |
3.2 |
30 |
180 |
120 |
140 |
0.008 |
FF-03 |
3/8" |
10 |
23 |
6.1 |
25 |
160 |
100 |
160 |
0.01 |
FF-04 |
1/2" |
12,5 |
45 |
11.9 |
25 |
150 |
110 |
190 |
0.012 |
FF-06 |
3/4" |
16 |
74 |
19.6 |
25 |
150 |
110 |
160 |
0.017 |
FF-08 |
1" |
20 |
100 |
26.5 |
25 |
140 |
110 |
140 |
0.02 |
FF-10 |
1-1/4" |
25 |
189 |
50.0 |
25 |
130 |
100 |
140 |
0.03 |
ISO |
PART NO. |
LS |
D |
HEX1 |
A |
T |
6.3 |
FF-02SF |
58.2 |
28 |
22 |
14 |
BSP1/4 NPT1/4 |
10 |
FF-03SF |
68.2 |
32 |
24 |
14 |
BSP3/8 NPT3/8 |
10 |
FF-03SF |
72.2 |
32 |
27 |
18 |
BSP1/2 NPT1/2 |
12.5 |
FF-04SF |
75 |
38 |
32 |
18 |
BSP1/2 NPT1/2 |
12.5 |
FF-04SF |
79 |
38 |
36 |
20 |
BSP3/4 NPT3/4 |
16 |
FF-06SF |
80 |
42 |
36 |
22 |
BSP3/4 NPT3/4 |
19 |
FF-08SF |
99.8 |
48 |
41 |
22 |
BSP3/4 NPT3/4 |
19 |
FF-08SF |
99.8 |
48 |
41 |
23.5 |
BSP1 NPT1 |
25 |
FF-10SF |
112 |
56 |
55 |
24 |
BSP1-1/4 NPT1-1/4 |
38 |
FF-12SF |
150 |
79.5 |
65 |
30 |
BSP1-1/2 NPT1-1/2 |
51 |
FF-16SF |
167 |
98.5 |
85 |
31 |
BSP2 NPT2 |
ISO |
PART NO. |
LP |
d |
C |
HEX2 |
A |
T |
6.3 |
FF-02PF |
49.2 |
16.1 |
15.2 |
20 |
14 |
BSP1/4 NPT1/4 |
10 |
FF-03PF |
55.8 |
19.7 |
19.5 |
24 |
14 |
BSP3/8 NPT3/8 |
10 |
FF-03PF |
59.8 |
19.7 |
19.5 |
27 |
18 |
BSP1/2 NPT1/2 |
12.5 |
FF-04PF |
72 |
24.5 |
21.6 |
32 |
18 |
BSP1/2 NPT1/2 |
12.5 |
FF-04PF |
76 |
24.5 |
21.6 |
36 |
22 |
BSP3/4 NPT3/4 |
16 |
FF-06PF |
75.5 |
27 |
21.6 |
36 |
22 |
BSP3/4 NPT3/4 |
19 |
FF-08PF |
93.8 |
30 |
29 |
41 |
22 |
BSP3/4 NPT3/4 |
19 |
FF-08PF |
93.8 |
30 |
29 |
41 |
23.5 |
BSP1 NPT1 |
25 |
FF-10PF |
90 |
36 |
34 |
55 |
24 |
BSP1-1/4 NPT1-1/4 |
38 |
FF-12PF |
112 |
57 |
38 |
65 |
30 |
BSP1-1/2 NPT1-1/2 |
51 |
FF-16PF |
124 |
73 |
40.5 |
75 |
31 |
BSP2 NPT2 |
Where Are Flat Face Hydraulic Couplings Used?
Construction Equipment
Used on excavators, skid steer loaders, hydraulic breakers and other construction machinery where hydraulic attachments are frequently changed.
Agricultural Machinery
Suitable for tractors, hydraulic implements and agricultural attachments requiring quick hydraulic connection.
Hydraulic Tools
Flat-face couplings can be used with hydraulic torque tools, cutters, spreaders and other portable hydraulic equipment.
Mobile Hydraulic Equipment
The compact connection design is suitable for mobile machinery where maintenance access and connection speed are important.
Industrial Hydraulic Systems
Can be used in hydraulic systems requiring frequent connection and disconnection with reduced fluid contamination.
Key Features and Benefits
1. Flat Face Design for Minimal Leakage
One of the most significant advantages of the FF series quick couplings is the flat face design. Unlike traditional quick couplings, which can create fluid spillage during disconnection, flat face couplings feature flat, smooth surfaces that help reduce leakage to a minimum.
2. Strength and Durability
The FF series quick couplings are constructed from high-quality carbon steel, offering a combination of strength, resilience, and reliability. Carbon steel is widely recognized for its high tensile strength and ability to withstand heavy-duty applications. It is an ideal material choice for hydraulic couplings that need to endure high-pressure conditions and continuous use.
3. ISO 16028 Compliance for Compatibility
The FF series quick couplings are manufactured according to ISO 16028 standards, ensuring they meet global industry requirements for hydraulic couplings. This international standard governs the dimensions, performance, and testing of quick couplings used in hydraulic systems, ensuring that our FF series products offer perfect compatibility with other systems that adhere to ISO 16028.
4. Ease of Use and Maintenance
One of the standout features of the FF series quick couplings is their user-friendly design. The couplings are easy to connect and disconnect without requiring excessive force or complicated procedures. This makes them ideal for applications where fast, reliable connections are required, particularly in mobile or time-sensitive environments.
Discover the FF difference today. Visit our website or contact our team to learn more about how FF quick couplings can meet your specific needs.
How to Choose an ISO 16028 Flat Face Hydraulic Coupling
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Coupling Size
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Working Pressure
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Connection Type
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Hydraulic Medium
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Operating Temperature
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Interchangeability
| Feature | Flat Face | Poppet |
| Valve Design | Flush face | Poppet valve |
| Fluid Spillage | Low | Higher |
| Cleaning | Easy | More difficult |
| Contamination Control | Strong | Application dependent |
| Frequent Connection | Suitable | Suitable |
| Construction Equipment | Common | Common |
| Agricultural Equipment | Common | Common |
| Hydraulic Tools | Common | Common |
Faq
What is an ISO 16028 flat face hydraulic quick coupling?
An ISO 16028 flat face hydraulic quick coupling uses a flush-face valve design to reduce fluid spillage and simplify cleaning during connection and disconnection.
How do I choose the correct flat face hydraulic coupling size?
Start with the required flow rate, working pressure, connection size and thread configuration. The coupling should then be matched to the hydraulic system and existing equipment.
Can HLFLUID provide OEM flat face hydraulic couplings?
Yes. HLFLUID supports OEM/ODM requirements, subject to product specifications, drawings, samples and project requirements.
Need the Right Flat Face Hydraulic Coupling?
Send us your existing coupling model, size, thread type, working pressure or product drawing.
Our team can help check the suitable coupling configuration for your hydraulic application.
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