Damcos A/S 219-0200 Seal Kit for KC 12-22 Hydraulic Actuators

Damcos A/S 219-0200 Set of Seals for KC 12-22 Actuators

The Damcos A/S 219-0200 Seal Kit is an OEM marine-grade hydraulic seal replacement set engineered for overhauling Damcos KC 12 and KC 22 linear double-acting hydraulic actuators. Operating in harsh offshore, ballast tank, and cargo valve remote control systems (VRCS), Damcos KC series actuators demand high-integrity dynamic and static sealing elements to maintain continuous operating hydraulic pressures up to 135 bar (1,958 PSI) without bypass or external fluid leakage.

This complete seal refurbishment kit includes all elastomeric O-rings, hydraulic rod seals, piston guide rings, scraper/wiper rings, and backup rings required to execute a complete field overhaul on KC 12 and KC 22 linear drive units. Formulated from specialized Fluorocarbon (FKM) and Nitrile Butadiene Rubber (NBR) compounds, these seals resist aggressive marine hydraulic fluids, seawater ingress, and severe ambient temperature variations in cargo holds and weather decks.

Key Features

1. Complete Overhaul Solution: Contains every soft seal, wiper, and backup ring required for a complete end-to-end refurbishment of KC 12 and KC 22 actuator cylinders.
2. High Hydrostatic Integrity: Designed to withstand continuous operating pressures up to 135 bar without extrusion or pressure blow-by under heavy cyclic loads.
3. Marine Chemical & Temperature Resistance: Premium elastomeric compounds maintain elasticity and dimensional stability under exposure to hydraulic oils, salt spray, and severe bilge environments.
4. Low Dynamic Friction Coefficient: PTFE-reinforced piston guide rings minimize slip-stick behavior, ensuring precise micro-positioning on modulating cargo and ballast valves.
5. IP68 Submersible Sealing Capability: Scraper and rod seals prevent external seawater contamination from entering the internal cylinder chamber during valve submerged operation.

Typical Applications

• Marine Valve Remote Control Systems (VRCS): Ballast water treatment system (BWTS) isolation, bilge, cargo tank stripping, and fuel oil transfer valve actuation.
• Offshore Oil & Gas Platforms: Submerged and weather-deck hydraulic remote actuation for linear globe and gate valves.
• Commercial Shipbuilding & Repair: Dockyard overhauls, preventive maintenance programs, and emergency vessel repairs.

Compatible Actuator Models

• Damcos KC 12 Linear Hydraulic Double-Acting Actuator
• Damcos KC 22 Linear Hydraulic Double-Acting Actuator
• Suitable for both direct-mount globe valve actuators and modular valve control blocks fitted on KC 12 / KC 22 frames.

Installation & Overhaul Best Practices

• Piston Rod Inspection: Inspect the chrome-plated piston rod for scoring, pitting, or rust prior to installation. A damaged rod will shred a new dynamic rod seal within cycles.
• Proper Lubrication: Pre-lubricate all O-rings and dynamic seals with clean hydraulic fluid (or silicone-based assembly grease like Dow Corning Molykote) before fitting. Never install seals dry.
• Avoid Sharp Edge Damage: Always use seal fitting tools or thin plastic sleeves over the threads and keyways during assembly to avoid slicing the elastomeric lips of the dynamic seals.
• Hydraulic Flushing: Flush the main hydraulic lines before reconnecting the actuator to prevent metal particulate from destroying the fresh seal package.
• Bleed Air Post-Installation: After fitting the 219-0200 seal kit, cycle the KC actuator under low pressure and use the air bleed screws to eliminate trapped air from both cylinder chambers to prevent cavitation and pressure spikes.

Frequently Asked Questions

What components are included in the Damcos 219-0200 seal set?

The Damcos 219-0200 kit includes all primary and auxiliary dynamic and static seals required for KC 12 and KC 22 linear actuators. This comprises piston seal rings, rod packings, rod wipers, cylinder barrel O-rings, and PTFE anti-extrusion backup rings.

How do I know if my Damcos KC actuator needs a seal replacement?

Common indicators include internal pressure bypass (actuator failing to hold valve position without pump support), external hydraulic fluid leakage around the rod gland, or loss of linear thrust output under working load.

Can this seal kit be used with synthetic or environmentally acceptable lubricants (EAL)?

Yes, the elastomers in the 219-0200 set are compatible with standard mineral hydraulic oils (HLP/HM) as well as certified HEES synthetic ester bio-oils frequently used in modern marine ballast systems.

What is the shelf life of the Damcos 219-0200 seal kit?

Stored in its original UV-resistant packaging in a cool, dry place away from direct sunlight and electric motors (ozone exposure), the elastomeric components have an active shelf life of up to 10 years from the date of manufacture.