Replacement Part for Nordson® Pump Service Kit 105450

In hot melt adhesive systems, the piston pump is the core of the melter. Once the pump seal wears out, output becomes unstable, leakage increases and unplanned downtime becomes more frequent.

The OEM Nordson® pump service kit 105450 is widely referenced as a “Pump A seal kit / pump seal kit” for hot melt piston pumps. XHH Seals manufactures a compatible replacement kit, cross-referenced to 105450, to help maintenance teams rebuild their pumps in a cost-effective way.

Note: 105450 is an OEM reference number. XHH Seals supplies compatible replacement parts and is not affiliated with or endorsed by Nordson.

What 105450 Pump Service Kit Does

The 105450 pump service kit is designed to restore the sealing function of the piston/pump section, so that the pump can:

• Maintain stable pressure and adhesive output
• Prevent hot melt leakage around the piston
• Reduce stringing, drooling and bead weight variation
• Extend pump service life between rebuilds

During regular maintenance or when leakage is observed at the pump section, this kit is typically replaced to bring the pump back to stable operation.

XHH Compatible Pump Seal Kit (Cross-Ref: 105450)

XHH Seals offers a functionally compatible pump seal kit that can be used as a replacement where Nordson® 105450 is specified in the parts list.

Our engineering team focuses on:

• Precise fit – sealing elements machined or molded to match the critical interfaces of the original kit
• High-temperature performance – materials selected for continuous exposure to hot melt adhesive
• Wear and extrusion resistance – lip geometry and supporting components designed for long life under cyclic pressure

The exact material formulation and hardness are selected based on your pump model, adhesive type and operating temperature. No unverified material claims are made without data from drawings, sample parts or customer confirmation.

When to Replace the Pump Seal Kit

You should consider replacing a 105450-type kit when:

• Pump output is unstable or cannot reach target flow
• Hot melt is visible around the pump piston or leaking into adjacent areas
• The pump requires more drive torque or makes unusual noise
• Preventive maintenance is scheduled and the pump has reached its service interval

Replacing the pump seal kit proactively helps avoid sudden melter failures during production.

Information Needed for Technical Verification

To quote and verify a compatible kit, please provide:

1. OEM part number

• Nordson® reference: 105450 – pump service kit / pump seal kit (as shown in your manual or BOM).

2. System and pump data

• Melter type and pump model (e.g., hot melt piston pump family)
• Any additional pump-related part numbers visible on the nameplate

3. Photos or drawings

• Clear photos of the used seals, piston and pump gland
• If available, dimensional drawings or measurements of the sealing area

4. Operating conditions

• Adhesive type, normal temperature range and typical production duty cycle

Contact XHH Seals

For technical support or a quotation for a compatible replacement to Nordson® 105450.

Please email: xhh@xhh-smartech.com

Disclaimer

• Nordson® and any related product names are trademarks of Nordson Corporation.
• XHH Seals is not an authorized distributor or representative of Nordson.

• Part number 105450 is used only as a reference to identify the application and compatibility of XHH Seals’ replacement kit.