Q4-3T & Q4-3T-2

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• General Specifications

  • NEMA 1 Standard
  • -2 indicates NEMA 4 Water Tight, NEMA 5 Dust Tight & NEMA 7 Explosionproof Coil Enclosure for Hazardous Locations: Class I Group D; Class II Groups E, F & G
  • General Purpose Valves
  • Normally Closed (Energize to Open)
  • 2-Way
  • Internal Piston-Pilot Operated
  • Packless
  • Full Ported
  • Bronze Body
  • Teflon® Leakproof seat provides Positive Shutoff
  • Pressures to 400 psi

  SERVICE RATINGS

  • Pipe Sizes Available: 1/8”, 1/4”, 3/8”, 1/2”, 3/4”, 1”, 1¼”, 1½”, 2”, 2½”, 3” NPT (Specify)
  • Media:
    • Air
    • Water
    • Aqueous Liquids
    • Oils (Max Viscosity – 30W SAE, 400 SSU)
    • Inert Gases & other non-volatile – non-corrosive fluids
  • Pressure Range: 5-150 OR 10-400 psi
    • For optimal valve operation, specify your actual pressure range. A minimum pressure drop of 5 OR 10 psi (ΔP) is needed for proper operation.

    Select the Maximum Pressure Rating closest to but not exceeding the actual pressure under which the valve will operate (Example: offered ranges are 5-150 psi or 10-250 psi. Your water application has a Maximum Pressure of 175 psi > pick the 10-250 psi rated valve).

    For more details Consult our Valve Specialists @ 800.634.6853

  • Rated Fluid Temperature Range: -40° F to +300° F
  • Voltages Available (Please Specify):
    • 12, 24, 120, 240, 480 VAC  50-60Hz 14 Watts Max
    • 6, 12, 24, 48, 115, 230 VDC 24 Watts Max
  • Coil Specifications:
  • NEMA Type 1 Coil Enclosure – Continuous Duty Polyester, Thermoset Epoxy Molded with 18” Leads and ½” Conduit Connector
  •  NEMA Type 4,5,7 Explosionproof Coil Enclosure – Continuous Duty Polyester, Thermoset Epoxy Molded with 18” Leads and ½” Conduit Connector

• • Insulation: Class F (300°F Maximum Fluid Temp @ 100°F Ambient)

  Valve Construction

  • GLOBE BODIES are Sand Cast Bronze – Max Rated Pressure: WSP 200 –  WOG 400
  • BONNET ASSEMBLIES are 304 Stainless Steel (SS) Tubes with Brass Tube Plugs Silver-soldered to a Brass or Bronze Bonnet. BONNET O-RING is Buna.
  • PISTON ASSEMBLIES are Brass or Bronze with Brass SEAT SCREWS and a Viton® Insert. 316SS EXPANDER RINGS behind Glass & Moly-Filled Teflon® PISTON RINGS plus Buna SEAT DISC and a Brass or Bronze GUIDE NUT.
  • PILOT VALVE ASSEMBLY has a 430SS ARMATURE with a 303SS PILOT POINT and 316SS PINS. PISTON SPRING is 303SS.

  MOUNTING & SERVICE

  • Installation: Valves must be mounted in horizontal pipe with coil vertical, upright and on top. A 40–mesh inline strainer is recommended ahead of the valve.
  • Maintenance: As with any piece of equipment, reasonable inspection and maintenance of components should be periodically performed. Frequently check operation, cleanliness and internal wear. Any questions, consult factory.

  NOTE: Gould Solenoid Valves are designed for Industrial–Commercial applications. Residential/Consumer applications will void the warranty. Questions ~ Call our Experts.