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Service Bulletin: SB 051.1
Subject: Electronic Glue Valve System
Recommendations:
All glue seal machines using an EFD type electronic glue valve system can be revised to use an improved Humphrey valve system. The new system provides a lower maintenance design as well as reduced parts replacement cost.
Experience to date has shown minimum adhesive leakage, improved glue pattern application or lay down, and reduced maintenance to revise the black plastic valve body system (ref. EFD) for each machine are:
QTY | NUMBER | ITEM |
1 | 28640-B | Complete valve body assembly including disconnects |
1 | 28949-A | Valve mounting bracket |
1 | 250-4EI-21 | Solenoid valve |
1 | 04R116E | Regulator and gauge |
1 | _” close nipple | |
2 | ASP-2 | Muffler |
Complete assembly and retrofit instructions will be provided with each order.It is advisable to support up to three glue seal systems with the following basic spare parts: |
QTY |
NUMBER |
ITEM |
1 |
28640-B |
Complete valve body assembly including disconnects |
1 |
R561-B |
Valve body assembly |
20 |
R510 |
Diaphragm |
10 |
R550 |
Stem |
1 |
1042-SRC |
Solid state relay |
When ordering specify machine serial number to be updated and this service bulletin number. |