J-D-Gould - Model QR-3V & QR-3V-2 -Normally Open Valve

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
  • 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.

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 Open (Energize to Close)
• 2-Way
• Internal Piston-Pilot Operated
• Packless
• Full Ported
• Bronze Body
• Viton® Leakproof seat provides Positive Shutoff
• Pressures to 150psi