Mold-Masters Hot Runner - 5.13 Valve Bushings

5.13 Valve Bushings
5.13.1 Types of Valve Bushings
Valve bushings can be either heated or non-heated.
Figure 5-15 Non-heated valve bushing
Figure 5-16 Heated valve bushing
5.13.2 Valve Bushing Installation
WARNING
If required, attach a crane of su󰀩cient lifting capacity to the manifold. Make
sure the lifting eyebolt, chain and crane can support the weight of the
manifold. Failure to do so may cause serious injury.
Do not shorten the screw length.
This procedure applies to valve gated systems that are bolt-in design. Refer
to the parts lists and the General Assembly drawing to determine if your
system has a valve bushing.
1. Mount the valve bushing on top of the nozzle.
NOTE
The valve bushing for Accu-Valve has a locating dowel pin with the mold.
2. Install the locating dowel. Ensure the dowel pin is not too long as this will
e󰀨ect the seal between the nozzle and the manifold.
5-28
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Hot Runner User Manual