How should I inspect and replace NBR seals on the Gear Pump Ø50.8 mm Plate, Left Rotation, Threaded Ports, TRALE to prevent leaks during continuous high-pressure operation?

For reliable, leak-free continuous high-pressure operation of Gear Pump Ø50.8 mm Plate, Left Rotation, Threaded Ports, TRALE, follow this inspection and replacement procedure for NBR seals: 1. Safety and preparation - Depressurize system, isolate pump, and drain hydraulic oil (L-HM45 or equivalent). - Clean external area to prevent contamination. - Gather tools: torque wrench, seal puller, soft mallet, cleaning solvent, lint-free cloths, replacement NBR seals rated for operating temperature range (-20°C to +90°C) and compatible with oil viscosity 10–600 cSt. 2. Disassembly - Remove pump from system following manufacturer torque specs for mounting. - Unscrew BSP threaded ports if needed to access end cover. - Remove rear cover and gear housing bolts; extract gears carefully to avoid damaging shaft/mating surfaces. 3. Inspect seals and components - Visually inspect NBR seals for hardening, cracks, cuts, swelling, extrusion, or flattening. - Check shafts, bores, and gear faces for scoring, corrosion or wear that could compromise sealing. - Measure seal grooves and shaft diameters; compare with tolerances to determine if replacement of components is required. 4. Replacement - Remove old NBR seals using a seal puller; avoid gouging mating surfaces. - Clean sealing surfaces thoroughly and dry. - Lightly lubricate new NBR seals with compatible hydraulic oil and install squarely into grooves—do not stretch excessively. - Replace any worn shafts, bearings, or housings that fail tolerance checks. 5. Reassembly and testing - Reassemble Gear Pump Ø50.8 mm Plate, Left Rotation, Threaded Ports, TRALE following correct bolt torque and alignment. - Reconnect BSP ports, refill with specified hydraulic oil, and bleed air. - Perform a staged pressure test under operating temperature, first at low speed/pressure, then ramp to declared maximum while checking for leaks. - Monitor for at least one full duty cycle under expected viscosity and ambient/medium temperatures. 6. Preventive measures - Use recommended oil and maintain viscosity within 30–45 cSt where possible. - Keep fluid clean (filtration) and monitor operating temperature to prolong NBR life. - Schedule regular inspections based on duty cycle and operating hours. Following this ensures secure sealing and minimizes leak risk during continuous high-pressure use.

Gear Pump Ø50.8 mm Plate, Left Rotation, Threaded Ports, TRALE

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Additional information

Maximum operating temperature [°C]	90
Minimum operating temperature [°C]	-20

The TRALE hydraulic gear displacement pump with external gearing is a reliable solution designed for demanding hydraulic systems in industrial machines and equipment. Featuring BSP threaded connections and a left-hand rotation, it ensures efficient and stable performance even under continuous operation at the declared maximum pressure. The robust construction combines an aluminum housing with a cast iron mounting plate and rear cover, delivering durability and resistance to wear in intensive working conditions. Equipped with NBR sealing, the pump guarantees secure operation with hydraulic oils such as L-HM45 or equivalent, supporting a wide viscosity range from 10 cSt to 600 cSt, with optimal performance between 30 and 45 cSt. Engineered to operate in challenging environments, it maintains full functionality within a medium temperature range of -20°C to +90°C and ambient conditions from -20°C to +60°C. This makes it an excellent choice for operators seeking long-lasting efficiency, precise hydraulic power, and dependable performance across a variety of applications.

List of product variants

Article number	Product variant name	Nominal inner diameter	Working pressure [bar]
TL-BTD3220I01	Gear pump, size 3, 22 cm3/rev, plate 50.8 mm, BSP connection	-	200
TL-BTD3260I01	Gear pump, size 3, 26 cm3/rev, plate 50.8 mm, BSP connection	-	200
TL-BTD3280I01	Gear pump, size 3, 28 cm3/rev, plate 50.8 mm, BSP connection	-	200
TL-BTD3320I01	Gear pump, size 3, 32 cm3/rev, plate 50.8 mm, BSP connection	-	200
TL-BTD3360I01	Gear pump, size 3, 36 cm3/rev, plate 50.8 mm, BSP connection	-	200
TL-BTD3420I01	Gear pump, size 3, 42 cm3/rev, plate 50.8 mm, BSP connection	-	200
TL-BTD3460I01	Gear pump, size 3, 46 cm3/rev, plate 50.8 mm, BSP connection	-	200
TL-BTD3500I01	Gear pump, size 3, 50 cm3/rev, plate 50.8 mm, BSP connection	-	200
TL-BTD3550I01	Gear pump, size 3, 55 cm3/rev, plate 50.8 mm, BSP connection	-	200

The TRALE hydraulic gear displacement pump with external gearing is a reliable solution designed for demanding hydraulic systems in industrial machines and equipment. Featuring BSP threaded connections and a left-hand rotation, it ensures efficient and stable performance even under continuous operation at the declared maximum pressure. The robust construction combines an aluminum housing with a cast iron mounting plate and rear cover, delivering durability and resistance to wear in intensive working conditions. Equipped with NBR sealing, the pump guarantees secure operation with hydraulic oils such as L-HM45 or equivalent, supporting a wide viscosity range from 10 cSt to 600 cSt, with optimal performance between 30 and 45 cSt. Engineered to operate in challenging environments, it maintains full functionality within a medium temperature range of -20°C to +90°C and ambient conditions from -20°C to +60°C. This makes it an excellent choice for operators seeking long-lasting efficiency, precise hydraulic power, and dependable performance across a variety of applications.