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NFPA T3.5.2

1969 Edition, September 5, 1969

Complete Document

Symbols for marking electrical leads and ports on fluid power valves

Includes all amendments and changes through Reaffirmation Notice , 2011

Detail Summary

Active, Most Current

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Product Details:

  • Revision: 1969 Edition, September 5, 1969
  • Published Date: January 2011
  • Status: Active, Most Current
  • Document Language: English
  • Published By: National Fluid Power Association ((NFPA))
  • Page Count: 13
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

This recommended standard offers symbols for the identification of valve ports, for the identification of valve pilot and solenoid actuators, and for the identification of valve solenoid leads.


Correct identification assists in providing:

Safety to personnel

Long life of the equipment

Proper function of other system components

Proper service and maintenance

Universal understanding of fluid power valve function