Replacing Safety Valve - Nordson VersaBlue VBN 50 Manual

Replacing Safety Valve

Safety Valve
Fig. 7-8
Safety Valve with Reed Switch
Fig. 7-9
E 2008 Nordson Corporation
WARNING: For safety reasons, the safety valve may not be disassembled.
The complete valve must be replaced every time.
WARNING: Hot! Risk of burns. Wear appropriate protective
clothing/equipment.
1. Close the tank isolation valve (Fig. 7-1).
2. Use an open-end wrench to screw out the safety valve, then extract with
a pliers.
3. Remove outer O-rings and clean outside of safety valve.
4. Install new O-rings.
5. Apply grease to all threads and O-rings.
6. To prevent damage to the O-rings, carefully guide the valve into the hole
when the melter is warm.
7. Tighten valve with a torque wrench. Torque: 15 Nm (133 lbin)
8. Open tank isolation valve.
1. Before the safety valve with Reed switch can be detached, the
connecting cable must be unscrewed.
2. Refer to Safety Valve for other tasks.
3. Screw the cable onto the new safety valve with Reed switch.
VBN w/o Control System
7-7
Repair
P/N 7146386A