Features:
1. Acting on the switch of the fluid in the flow channel, pull back type off glue.
2. Suitable for medium and high viscosity heat-conducting paste fluids.
3. Valve spool adopts unique pressure balance structure design, can withstand high pressure glue supply.
4. Good glue consistency.
5. Compatible with plastic seat needles, stainless steel needles, TT angled needles and other specifications.