This gate type design uses spring loaded seal discs that seal tightly at all pressures from 0 psig to maximum rating.  When the requirement is specified, this valve can permit bi-directional flow with tight sealing in both flow directions.  Because of straight-through flow path with self-cleaning sealing surfaces, internal passages inherently resist any buildup of contamination and sludge.

Features and Options:

	Absolute zero leakage to the environment.  No packings, bellows, or diaphragms.
	Valve ratings: ANSI class 150 to 2500.
	High cycle life.  Over 100,000 operations in most applications.
	Straight-through flow: resistant to contamination and sludge build-up.
	ASME Section III, Classes 1,2, and 3.
	Available Fail Safe Closed, Fail Safe Open or Fail in Last Position.
	Body material:  Standard: Stainless Steel, Optional:  Carbon Steel, AL6V, other ASME Materials.
	Carbon Seats.
	Bi-directional flow available.
	Position indication switches available for remote status indication.
	Line connection:  Standard:  Socket weld, Optional:  Butt Weld or Tube Extensions.
	Solenoid operator is constructed of Class H materials or better.  120 VAC or 125 VDC.  Other voltages available.
	All electrical components totally enclosed.  Meets minimum of NEMA 4 or better.
	Solenoid and switch assemblies readily accessible for removal or maintenance without disturbing the pressure boundary.
	Stress and seismic analysis available.  Qualified to IEEE 344.
	Radiation resistance:  Standard 2 x 108 rads.
	Qualification:  IEEE 323 - 1983, IEEE 344 - 1975, IEEE 382 - 1980.
	Qualified life:  Up to 40 years + LOCA.