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   This catalog has been published to assist you in choosing the correct valve for a vast number of piping conditions. The Shangri product line makes available to you a very broad choice of valves. These valves are described in this catalog.

   Care should be taken to select the most suitable valves for your service(s). Exact specification of each valve should be made to avoid possible ambiguity. When requesting quotations and/or ordering the product a fully adequate description should be made.

Selecting the Valve Size

   Nominal size of the pipeline into which the valve will be placed must be determined.

Valve Material

  The following facts should be considered in determining the correct valve material:
  , the medium or media which will be controlled
  , the temperature range of the line medium (media)
  , the pressure range to which the valve will be subjected
  , possible atmospheric conditions which may affect the valve
  , possible extraordinary stresses to which the valve will be subjected
  , safety standards and/or piping codes which must be met
  


Type of Valve

  What is the control function of the valve? Each valve configuration has been developed to perform certain control functions. Do not expect one type of valve to perform all the valving jobs in a system.

Pressure-Temperature Ratings

  Please pay careful attention that the pressure-temperature ratings of a particular valve are in keeping with the requirements of the service. Pay especially careful attention to the packing and gasket materials as this may limit the rating as is the case with PTFE used as the standard in Shangri valves. Specify alternative packing and/or gasket materials as necessary to meet or exceed your service requirements.
  
Valve and Connections

  Considerations as to pipeline integrity, future maintenance, corrosion factors, field assembly, weight and safety should be given in determining the method of connecting the valve in the pipeline.

Method of Operation

  The means by which the valve is operated as supplied are shown for the valves in this catalog. Many optional operating devices are regularly supplied by Shangri.

Ordering the Valve

  Please state the following information when ordering a valve in order to avoid unnecessary delays and to insure we supply you with the valve you have requested.

  1. Valve size
  2. Pressure boundary material - metallurgy of the castings and components.
  3. Type of valve - gate, globe, check, etc.
  4. End connection including wall thickness of connecting pipe if weld end and any special flange facings or finishes.
  5. Any material deviations from standard - packing, gasket, bolting, etc.
  6. Any accessories - acid shield, locking devices, chain operation, etc.
  7. Manual or power actuators, please include details of requirements.
  8. For convenience in ordering, specify by figure number. Contact Shangri for additional assistance in valve selection.



  
 
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