Service
5-16
Part 1126931_01
2018 Nordson Corporation
Pressure/Circulation Control Valve Service Kit
Each kit contains two O‐rings and high‐temperature grease.
Service kit P/N: 394600
Required tools:
Open‐jawed wrench, size 24
Pliers
Torque wrench
1. Heat melter to operating temperature.
WARNING: Hot! Risk of burns. Wear appropriate protective
clothing/equipment.
2. Relieve melter pressure.
3. Measure insertion depth. Refer to Pressure Control Valve.
4. Use an open‐jawed wrench to screw out the pressure control valve, then extract with a
pliers.
5. Remove old O‐rings and disassemble and clean pressure control valve. Refer to Section
7, Parts, for a detailed drawing.
NOTE: Disassemble valve only when warm.
6. Install new O‐rings. Apply grease to all threads and O‐rings.
7. Guide pressure control valve into the hole when the melter is warm and tighten with
torque wrench.
Starting torque: 15 Nm (133 in.‐lb)
8. Adjust set screw. Refer to Pressure Control Valve.