UL 429-BULLETINS:2002 pdf download Changes in Guide Information for Electrically Operated Valves Certied for Canada, YIOZ7
USE AND INSTALLATION
This category covers electrically operated valves which are designated General Purpose Valves or SafetyValves as indicated in the individual Listings. These valves may be equipped with complementary oroptional mechanical actuators.
A General Purpose Valve is intended to control the flow of a fluid, but is not intended for use as a safetyvalve. It may be a normally closed or normally open valve.
A Safety Valve is a normally closed valve of the “On” and “Oft” type intended to be actuated by a safetycontrol or an emergency device to prevent the delivery of a fluid. t may also be used as a general purposevalve. A multiple port valve may be designated as a Safety Valve only with respect to its normally closedport.
These valves are intended for stationary installation in an ambient temperature normally prevailing inhabitable spaces and for handling fluids at a temperature not exceeding 25C (77F) in ordinary(nonhazardous) locations as defined by the Canadian Electrical Code unless otherwise indicated.
ADDITIONAL INFORMATION
For additional information, see Flammable and Combustible Liquids and Gases Equipment Certified forCanada(AAPQ7).
REQUIREMENTS
The basic standard used to investigate products in this category is C22.2 No. 139-1982,”ElectricallyOperated Valves.
Products intended for automotive use with CNG also use ANSI/AGA NGV31/CGA 12.3,”Fuel SystemComponents for Natural Gas Powered Vehicles.”
Products intended for automotive use with lP-Gas also use CAN/CGA-12.2,”Propane Fuel SvstemComponents for Use on Hichway Vehicles.”
UL MARK
The Listing Mark of Underwriters Laboratories lnc. on the product is the only method provided by UL toidentify products manufactured under its Listing and Follow-Up Service. The Listing Mark for theseproducts includes the UL Mark for Canada symbol (as illustrated in the lntroduction of this Directory)together with word “LISTED” a control number, and one of the following product names as appropriate:”General Purpose Valve””Safety Shut off Valve,””Safety Valve,””Shut off Valve” or “Positive Shut offValve.” The product name may be preceded by “Section of” and is followed by one of the followingstatements as appropriate: “Assembly Consisting of Coil (or Actuator) (No.) and Body (No.),” “ForAutomotive Use Only or “For Use with (No.) Pilot Safety Control Switch.”
The specific fluid(s) for which the valve is Listed together with the fluid temperature and ambienttemperature ratings are also included on the Listing Mark or marked elsewhere on the valve.