Cryovent User Manual - US
Contents
1. Chart Inc 407 7th Street N W New Prague MN 56071 Tel 888 877 3093 Fax 952 758 8293 E mail chart sales chartindustries com Cryovent User Manual A Cryovent offers a reliable method to maintain liquid nitrogen or liquid argon in your vacuum insulated piping system It requires no electricity to operate A float operated valve allows gas to be vented from the system to ensure a liquid full piping system Installation The cryovent should be located near the end of the vacuum insulated piping system away from the supply tank The vacuum insulated piping system needs to rise continuously to the cryovent so that as gas is created it will bubble up to the cryovent and be vented The cryovent is installed on a bayonet or a 1 2 male pipe thread The body of the cryovent must be installed vertical with the vent side up If possible purge the piping system before installation of the cryovent to prevent particles from being driven through the cryovent Use care to assure no sealant is allowed to enter the cryovent The vent side of the cryovent should be vented outside the building using a 2 copper tube The uninsulated portions of the inlet and outlet plumbing can be insulated with foam pipe wrap or similar insulation If these portions are left without insulation they will frost and likely drip condensation during use for installation on an indoor model or PN 11845607 for installation of an Sf Note If a Cryovent Exhaust H2. eater is needed please reference PN 11805541 outdoor model Operation A cryovent is designed to remove gas from a full line created by the heat leak of the pipe Ideal system operation is 24 7 with the cryovent open If the system is shut down at the source the cryovent should also be closed When the source is turned back on the line should be cooled down with a vent valve at the use point then when liquid shows the cryovent may be opened The cryovent may be turned off at any time without enduring damage to itself but should not be turned back on until the system is cooled down S Note The cryovent is operated by opening or closing the valve on its vent as Page 1 of 2 PN 20938416 Rev A 2015 Chart Inc i 5 Oa ne I Chart Inc 407 7th Street N W New Prague MN 56071 Tel 888 877 3093 Fax 952 758 8293 E mail chart sales chartindustries com Maintenance No normal maintenance is required If the cryovent is removed from the piping system ensure all pressure is released before the connections are loosened installed in any portion of a piping system where liquid nitrogen may be ie Note The cryovent is NOT a safety relief valve A safety relief valve MUST be plas trapped Specifications 11897221 Cryovent Ext FPT MPT Cryovent Ext 2 F Horiz 2 M Bayo Cryovent Ext 2 F Horiz 2 MPT Cryovent Ext 2 M Vert Y2 M Bayo Cryovent Ext 1 2 M Vert X MPT Cryovent Ext 1 F Horiz M Bayo C
3. ryovent Ext 1 F Horiz 1 2 MPT Cryovent Ext 1 M Vert 1 2 M Bayo Cryovent Ext 1 M Vert X MPT Cryovent Ext 1 F Vert 2 MPT Cryovent Ext 1 F Vert 1 2 M Bayo Cryovent Ext 1 1 2 F Horiz 1 2 M Bayo Cryovent Ext 1 1 2 F Horiz Y2 MPT Cryovent Ext 1 1 2 M Vert X 1 2 M Bayo Cryovent Ext 2 F Horiz 2 M Bayo Cryovent Ext 2 F Horiz 1 2 MPT Service Liquid Nitrogen or Liquid Argon Vent Connection Y2 OD tube compression fitting Maximum Operating Pressure 150 psig Page 2 of 2 PN 20938416 Rev A 2015 Chart Inc
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