Janus Sv Series User Manual

Page: 24
FM-200® FILL MANUAL
Revision B
Document # DOC180
Issued: August 16, 2010
Revised: April 2, 2012
Section 5 System Recharge and Reset
5.2.2 Cleaning and Servicing The Valve Assembly
Janus Fire Systems recommends that the following steps be followed prior to relling the cylinder(s):
Check the pressure gauge and cylinder weight to verify the cylinder is empty and at atmospheric pressure before
attempting to remove the valve. Failure to comply could result in personal injury or death from violent cylinder
movement or over-exposure to high concentrations of agent.
• Removethevalveassemblyfromthecylinder.
• Removethediptubefromthevalveassembly.
• Removethetopcap.
• Pushthepistonassemblyupandoutofthetopofthevalvebodyandinspectboththepistonandvalve
body bore for damage.
• Cleanallinternalvalvesurfacesusingcautionnottoscratchornicktheseatingsurfaces.
• Holdthe pistoninplace bycarefully gripping thesmaller diameter cylindrical surface with a strap
wrench or similar device. Use a pin-style spanner wrench to remove the piston cap by turning it
counter-clockwise.
• ReplacethelowerpistonO-ringaroundthepistoncap.
• Reinstallthepistoncapusingthestrapwrenchandspannerwrench.Tightenuntilthecapbottomsout
on the piston body.
• RemovetheupperpistonO-ringonthepistonbodyanddiscard.
• LubricatethenewupperpistonO-ringwithMolykote55byDowCorning(P/N19056)orequivalent
and install the new upper piston O-ring onto the piston body.
• LightlylubricatetheinternalvalveborewithMolykote55byDowCorning(P/N19056)orequivalent
and insert the valve piston into the valve body.
• RemovethevalvecapO-ringanddiscard.
• TopreventdamagetothenewvalvecapO-ringduringinstallationcoverthethreadsofthevalvecap
with masking tape.
• Lightly lubricate the new valve cap O-ring with Molykote 55 by Dow Corning (P/N 19056) or
equivalent and install on the valve cap.
• Removemaskingtapefromvalvecapthreadsandcleanthethreadsonthevalvecap.Carefullythread
the top cap onto the valve assembly. Tighten securely, do not apply excessive force.

Janus Sv Series Specifications

General

Brand	Janus
Model	Sv Series
Category	Safety Equipment
Language	English