Installation of Regulator Kit
onto 1/4 in. molstic-S™
Mounting Platform
P/N 401880
Instruction Sheet
This kit is used to upgrade 1/4 in. single or dual
molstic-S platforms that do not include the integrated
pressure regulator. This upgraded configuration is
ideal for the situation where the device under test
(DUT) will be tested while plumbed downstream of the
molbloc-S.
High pressure gases are potentially hazardous.
Energy stored in these gases can be released
unexpectedly and with extreme force. High
pressure systems should be assembled and
operated only by personnel who have been
instructed in proper safety practices.
Figure 1.
1/4 in. molstic-S, with Regulation
PREPARING THE REGULATOR FOR
INSTALLATION
Place a new VCR
®
gasket (P/N 102183) into the inlet
port of the regulator.
Place the VCR male nut (3) over the tube adaptor (2)
and thread it into the regulator inlet port and tighten
finger-tight.
Over-tightening VCR connections will damage
the sealing beads and possibly cause system
leakage. Do not re-use metallic VCR gaskets.
Hold the regulator stationary, and tighten the male nut
1/8 turn past finger-tight.
Install the quick connect body (1) onto the tube fitting
and tighten 1-1/4 rotations beyond finger-tight.
Place a new VCR gasket into the outlet port of the
regulator.
Thread the VCR male union (4) into the regulator outlet
port and tighten finger-tight.
Hold the regulator stationary, and tighten the male union
1/8 turn past finger-tight.
Attach the regulator mounting bracket to the base of the
regulator using the two included #10-32 socket head cap
screws, #10 flat washers, and the #10 lock washers. The
long side of the bracket should be perpendicular to the
direction of flow through the regulator.
INSTALLATION OF REGULATOR ONTO
MOLSTIC-S
Using a pair of properly sized wrenches remove the
VCR x tube adaptor which is on the inlet end of the
molstic-S. This will leave a VCR coupler (5) as the
molstic interface. Retain the adaptor for future use.
The VCR gaskets are for one-time use and should
therefore be discarded.
Using a pair of properly sized wrenches remove the VCR
coupler and filter as an assembly (5 and 6) from the
female VCR swivel nut (7). Discard the VCR gasket.
Place a new VCR gasket securely against the sealing
surface inside the female VCR coupler (5) of the
molstic-S inlet fitting.
Tighten the VCR coupler and filter subassembly to the
regulator outlet fitting 1/8 turn past finger-tight.
Place a new VCR gasket securely against the sealing
surface inside the female VCR swivel nut (7).
Place the regulator with its bracket on top of the molstic-S
platform. Align the filter assembly’s male VCR outlet
fitting with the mating female VCR swivel nut and thread
the nut onto the fitting.
Hold the filter
assembly
stationary with a backup
wrench. Tighten the female nut 1/8 turn past finger-
tight.
Figure 2.
molstic-S Nut Plate
