The FAAC 2172 Seal Kit (also 2172.1) is a complete replacement seal pack designed for the FAAC 422 hydraulic swing gate operator. This kit includes all necessary O-rings, gaskets, and seal components required to restore the hydraulic integrity of the 422 operator, ensuring reliable performance, leak-free connections, and proper pressure maintenance. Over time, seals in the hydraulic cylinder, flanges, pistons, and valve assemblies may degrade due to wear, environmental exposure, or repeated movement. Replacing them with a genuine FAAC seal kit helps maintain manufacturer tolerances, proper fluid containment, and prolongs the life of the entire gate operator.
The 2172.1 version corresponds to the upgraded or current variant of the seal kit. The kit is suited for applications where the operator is showing signs of hydraulic oil seepage, decreased performance, or irregular motion. It is an essential maintenance or repair item to avoid more serious damage or complete hydraulic failure. Importantly, installation of this seal kit should follow FAAC’s guidelines to avoid damaging internal parts and to preserve warranties and safety.
Genuine FAAC seal kit, made to original manufacturer specifications and material standards.
All components are designed to withstand the pressure, temperature, and hydraulic fluid types specified for the FAAC 422 operator.
Using the correct seals prevents leaks that could lead to hydraulic fluid loss, reduced performance, or damage to internal components.
Ensures operator remains safe, reliable, and operable under the rated duty cycle.
Warranty and long-term performance are best preserved when installing genuine FAAC parts correctly.
Safety first: Disconnect power to the 422 operators. Relieve hydraulic pressure by manual release, following FAAC’s safety procedures.
Remove the operator casing or cover to access the hydraulic cylinder, piston, flanges, valves, or other internal components where the current seals / O-rings are located. Refer to the FAAC 422 manual for exploded diagrams.
Carefully disassemble the parts that need replacing (front flange, mid flange, piston rod packing, valves etc). Keep track of the order of disassembly and orientation of each piece.
Remove old seals / O-rings / gaskets. Clean all mating surfaces thoroughly to remove residue, dirt, old sealant, or burrs.
Install the new seal components from the seal kit (2172 / 2172.1). Make sure each seal or O-ring is seated properly and oriented correctly. Lubricate lightly with manufacturer-approved oil (hydraulic oil used in FAAC 422) to help installation and avoid damage.
Reassemble all components to the correct torque values or tightening sequence as per FAAC specs. Replace any other parts if worn (e.g., washers, gaskets) along with seals.
Reinstall the operator cover or housing. Refill any hydraulic fluid if needed. Check for hydraulic pump priming or bleed if required.
Restore power and test the gate operator through full opening/closing cycles. Watch for leaks around the rebuilt areas, listen for unusual sounds, and assure smooth, consistent motion.
Use the seal kit as preventative maintenance when the operator sees heavy usage or begins showing signs of oil seepage.
Replace worn or damaged O-rings or seals as soon as issues are noticed to avoid further internal damage.
Always use the oil type FAAC recommends (check the manual) to ensure seal compatibility.
Keep all internal components clean during installation; contaminants can damage new seals.
Inspect the flange faces, pistons, and cylinder bore for scoring or damage; severely damaged surfaces may cause premature seal failure.
After installation, periodically check the unit for tightness of mating parts, fluid levels, and the presence of any slow leaks.
