Polycold Cryochiller
Installation
Installation and Operation Manual
Install the Refrigerant Lines
Brooks Automation
214072 Revision B
4-25
5.
Tighten the nut no less than ¼ turn until resistance increases sharply and no further tightening
occurs. The metal o-ring will be crushed into the o-ring groove. Tighten each coupling to 54-80 Nm
(40-60 pound-foot).
NOTE:
The Parker fittings are coupled and sealed based on mechanical displacement of the
threaded parts, which results in compression at the sealing surface. Torque values are pro-
vided for customers requiring a measurable value.
6.
Go to the Installation Checklist
Initial and date this task. Go to the next task
on the checklist.
Install Cajon VCR Couplings (Optional Fitting)
1.
Place a new gasket into the female nut.
2.
Assemble the components and finger-tighten the coupling.
3.
Use both wrenches to tighten each coupling no less than ¼ turn until resistance increases sharply
and no further tightening occurs, approximately 54-80 Nm (40-60 pound-foot).
NOTE:
The Cajon fittings are coupled and sealed based on mechanical displacement of the
threaded parts, which results in compression at the sealing surface. Torque values are pro-
vided for customers requiring a measurable value.
4.
Go to Installation Checklist
.
Initial and date this task. Go to the next task on the checklist.
Figure 4-19: Cajon VCR Coupling (optional fitting)
Female Nut
Gland
Sealing Surfaces
Silver Plated Stainless Steel Gasket
or Unplated Nickel Gasket
Male Nut
Gland
