Hydraulic pump end covers (on piston, gear, or vane pumps) are seals for the most demanding joints in a hydraulic system. They must contain pressurized fluid while maintaining the precise internal clearances of the rotating components. They are subjected to extreme system pressure (often thousands of PSI), intense heat generated by friction and fluid resistance, and severe vibration. A failure here is an immediate, catastrophic loss of pressure, fluid, and pump functionality.
Don’t let a minor seal compromise the operational power and reliability of your entire hydraulic circuit.
INCURE HeatGrip™ 503 High-Temp Anaerobic Flange Sealant
Hydraulic pump casings are built with high-tolerance, precision-machined steel or cast iron flanges. These components require a seal that is rigid and high-strength to maintain dimensional alignment and pressure integrity under maximum load. The INCURE HeatGrip™ 503 is engineered for these extreme operating conditions, creating a rigid, chemically inert barrier essential for accurate, high-pressure fluid containment.
| Feature & Benefit | Technical Insight for Hydraulic Pump End Covers | Conversion Value |
| Superior Pressure Resistance | Cures to a high-strength, rigid plastic that provides maximum resistance to the high internal fluid pressures typical of hydraulic systems. | Lock in the Force: Achieve an absolute, permanent seal that maximizes pump output and system power. |
| High-Temperature Stability | Rated for continuous operation up to 200∘C (392∘F), ensuring the rigid seal remains stable under the friction and thermal load of continuous high-pressure operation. | End the Thermal Threat: Get a seal that won’t weaken or degrade, even in the hottest hydraulic loops. |
| Hydraulic Fluid Immunity | Chemically inert to all standard and synthetic hydraulic fluids, preventing the sealant from breaking down or contaminating the vital fluid. | Protect Your System: Ensure the sealant won’t compromise the cleanliness or function of the hydraulic fluid. |
| Minimal Gap Sealing | The 503 is ideal for close-tolerance, rigid flanges typical of precision-machined pump casings, forming a perfect, gap-free seal. | Precision for Alignment: Trust a rigid seal designed to maintain the tight internal clearances essential for pump efficiency. |
Application Steps: Sealing Hydraulic Pump End Covers for Permanent Integrity
Preparation (Critical Cleaning): Thoroughly clean both flange faces—remove all previous gasket material, residue, and traces of hydraulic oil. Use a degreasing solvent (like industrial brake cleaner or acetone) and wipe until the metal surfaces are perfectly dry and spotless.
Application: Apply a continuous, thin bead of HeatGrip™ 503 onto one flange face, circling all bolt holes. Use a roller or spreader to create a uniform, thin film across the entire mating surface.
Assembly: Immediately mate the end cover to the pump casing (within 5 minutes). Torque the bolts to the manufacturer’s specified pattern and value to ensure even clamping and proper anaerobic curing.
Curing Time (Critical): Allow a full 24 hours for the sealant to cure completely. This cure time is mandatory to achieve maximum pressure and thermal resistance before introducing fluid and subjecting the pump to operational pressures.
Stop risking leaks and maximize your hydraulic system’s force and reliability.