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  [Mounting Methods] Mounting Methods
  ±Û¾´ÀÌ : ´ÙÀÏIBC     ³¯Â¥ : 09-03-22 14:43     Á¶È¸ : 12729    

Mounting Methods

Additional Mounting Methods Conax offers numerous combinations of pipe nipples, hex nipples, unions and couplings to be used to mount your assembly to a vessel. These may also be used in combination with spring-loaded mounting devices. All pipe nipples and unions are 1/2 NPT stainless steel unless otherwise specified. Carbon steel is also available. Conax does not recommend the use of nipple combinations (N, NU, NUN or HN) without additional probe support.
 
 
Calculating the Length of Nipple Combinations
For assemblies using pipe nipples, the active length is the distance from the sensor end of the probe to the end of the pipe nipple. The length of the pipe nipple must also be specified in an order, keeping in mind that when engaging 1/2 NPT threads, approximately 1/2" is lost per connection. If a spring-loaded pipe nipple (SLN) is ordered, the active length is measured with the spring uncompressed. Conax Buffalo recommends 1/4" of spring compression when the probe is installed.

 
Catalog Designations
 
N – Pipe Nipple
Conax pipe nipples consist of Schedule 40 pipe with male threads on each end, 4 inch long stainless steel standard. Carbon steel (CS) and longer lengths are available options. Pipe nipples feature a 1/2 NPT and nominal bore ID of 0.62". Pipe nipples are used to provide temperature standoff between the pipe/vessel and terminal head. They are also often used as a spacer between insulated vessels/pipes and terminal heads.
 
RSN – Rigidly Sealed Nipple
The Conax rigidly sealed nipple is similar in usage to a pipe nipple, but is weld sealed on the process end to provide pressure/vacuum sealing against liquid or gases reaching the terminal head. The RSN is sized to fit the requested sensor diameter. Available in stainless steel only, 1/2 NPT, 4" long standard. Other lengths are available.

NRSN
This version of the RSN is not weld sealed on the process end. It provides a pilot for the probe without the seal.
 
HN – Hex Nipple
The hex nipple provides a shorter temperature standoff than the pipe nipple and includes wrench flats. The HN features a 2" long fixed overall length and is available in stainless steel only.
 
U – Union
This Class 150 lb., 1/2 NPT standard union allows disassembly, removal and positioning of the sensor assembly. Stainless steel is standard. Carbon steel (CS) is also available.
 
C – Coupling
A Class 150 lb. standard coupling may be used to join pipe nipple sections. Stainless steel is standard. Carbon steel (CS) is also available.
HC – Hex Coupling The hex coupling offers wrench flats. Available in stainless steel only.

W Mounting
The Conax W fitting is a stainless steel fitting with male threads on both ends. The bore is sized to pass standard probe diameters of 0.125", 0.187" or 0.250". NW4 and NW8 fittings are not welded and can be used to pilot the probe for insertion into tubewells or thermowells. W4 and W8 fittings are weld sealed to form a rugged leak-tight mounting. Order W8 for a 1/2 NPT, W4 for a 1/4 NPT.
 
W7
The Conax W7 fitting is a stainless steel fitting with male threads on one end only. The hex end is welded to the sheath to form a fixed mounting and liquid/gas seal. The bore is sized to pass standard probe diameters of 0.125", 0.187" or 0.250". When included in an assembly, both the active and immersion lengths must be specified.


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