PC200 PVA
Revision G (2019)
7 of 56
Theory of Operation
The PC200 is a rear closing, two component dispensing valve. Applications include
potting, bead placement, and gaskets where a low to medium flow rate is required. This
valve has adjustable snuff back to prevent drips or strings at the end of the static mixer.
Part A and part B materials flow into the valve separately and out of the valve separately
into a disposable static mixer. It is not necessary to disassemble and clean the valve at
the end of each day. The PC200 has a divorced design made of two major sections: the
air section and the fluid section
Air Section
The air section is an aluminum body with a simple piston/cylinder combination used to
open and close the valve. The stroke adjustment screw in the upper air body controls
how far the piston and rod assembly can retract and controls snuff back.
Fluid Section
The fluid section is available in two materials:
•
Stainless steel
•
Aluminum (decreased weight for handheld applications)
The fluid section includes two rods with lip seals on each side of the valve to control
fluid flow of part A and part B. Fluid dispenses as the rods move to the forward position
past the lip seals. When the rods retract back into the lip seals the fluid flow stops and
creates a snuff back action on the fluid.
Pneumatic Schematic
Figure 1: General PC200 Pneumatic Schematic
Summary of Contents for PC200 Series
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Page 43: ...PC200 PVA Revision G 2019 43 of 56 How to Order Figure 63 Part Number Configuration ...
Page 45: ...PC200 PVA Revision G 2019 45 of 56 Figure 64 Accessories and Options ...
