Switching to Nitrogen Supply of the GAS outlet of "High Pressure" Liquid Nitrogen Dewar
3.2 هزار بار بازدید -
8 سال پیش
-
A nitrogen gas supply to
A nitrogen gas supply to multiple hoods that had been using compressed gas cylinders was re-plumbed to use the gas output from a 240 L liquid nitrogen dewar. Since the working supply pressure for the nitrogen manifold will be under 20 psi, the 240 psi limit on the gas output of a liquid nitrogen dewar is just fine. Single stage regulator is used; maximum input pressure of 500 psi, output pressure range 0 to 60 psi.
The flexible "pigtail" hose is a great convenience when attaching to the dewar. The 240 L dewar size also has the advantage of being on wheels ... no hand cart is needed to move the dewar.
TIME .... VIDEO SEGMENT DESCRIPTION
0:01 .... Early in the "Before" with the wall shelving standards installed and general description
1:01 .... Components before assembly for pigtail hose/regulator/valve ... needed to connect to CGA 580 GAS Outlet of liquid nitrogen dewar
2:37 .... Assembled components for connection from dewar to 1/4" OD copper tubing .... only one side of regulator has connection for "IN"
3:34 ... Rough in of copper line extension
3:51 .... Options for fastening regulator to shelf
4:09 .... Selected configuration and tied down with stainless steel wire
4:59 ... Finished connections
5:41 .... High pressure liquid nitrogen dewar attached
6:28 ... Testing flow at a hood a couple of times
7:47 ... Tags for use with liquid nitrogen dewar ONLY ... Important warning since regulator cannot handle maximum pressure input that a compressed gas cylinder can generate.
8:10 ... Note on shelf brackets and shelf ... secured with 3/4"x #6 sheet metal screws
DISCLAIMER and some other legal stuff .... This video is for educational and documentation purposes only.
Due to factors beyond the control of massspecguy, such as, for example, it would be impossible to know the specific future quality (or suitability) of materials, workmanship, and/or labor, I cannot guarantee against improper, unauthorized use, modifications, and/or mishandling of this information. Use of the information in this video is entirely at your own risk. Due to factors beyond the control of massspecguy, no information contained in this video shall create, give, issue, or grant any guarantee or warranty, either express or implied, of any particular result. Any injury, loss, or damage that may result from improper use of tools, methods, equipment, or procedures, or from any information contained in this video is the sole responsibility of the user and not massspecguy. Massspecguy and the creators of this video accept no responsibility nor liability for any actions, injury, loss, damage and/or consequences as a result of viewing this video.
Use of the information in this video is entirely at your own risk.
The flexible "pigtail" hose is a great convenience when attaching to the dewar. The 240 L dewar size also has the advantage of being on wheels ... no hand cart is needed to move the dewar.
TIME .... VIDEO SEGMENT DESCRIPTION
0:01 .... Early in the "Before" with the wall shelving standards installed and general description
1:01 .... Components before assembly for pigtail hose/regulator/valve ... needed to connect to CGA 580 GAS Outlet of liquid nitrogen dewar
2:37 .... Assembled components for connection from dewar to 1/4" OD copper tubing .... only one side of regulator has connection for "IN"
3:34 ... Rough in of copper line extension
3:51 .... Options for fastening regulator to shelf
4:09 .... Selected configuration and tied down with stainless steel wire
4:59 ... Finished connections
5:41 .... High pressure liquid nitrogen dewar attached
6:28 ... Testing flow at a hood a couple of times
7:47 ... Tags for use with liquid nitrogen dewar ONLY ... Important warning since regulator cannot handle maximum pressure input that a compressed gas cylinder can generate.
8:10 ... Note on shelf brackets and shelf ... secured with 3/4"x #6 sheet metal screws
DISCLAIMER and some other legal stuff .... This video is for educational and documentation purposes only.
Due to factors beyond the control of massspecguy, such as, for example, it would be impossible to know the specific future quality (or suitability) of materials, workmanship, and/or labor, I cannot guarantee against improper, unauthorized use, modifications, and/or mishandling of this information. Use of the information in this video is entirely at your own risk. Due to factors beyond the control of massspecguy, no information contained in this video shall create, give, issue, or grant any guarantee or warranty, either express or implied, of any particular result. Any injury, loss, or damage that may result from improper use of tools, methods, equipment, or procedures, or from any information contained in this video is the sole responsibility of the user and not massspecguy. Massspecguy and the creators of this video accept no responsibility nor liability for any actions, injury, loss, damage and/or consequences as a result of viewing this video.
Use of the information in this video is entirely at your own risk.
8 سال پیش
در تاریخ 1395/07/12 منتشر شده
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