KR-3B & KR-3B-2

Stainless Steel · 1/8″-2″ npt
Normally Open
Buna Leak Proof Seat
Air/Water · Inert Gas · Oils
Corrosive Fluids
5-150psi OR 10-300psi
Media temps to 250°
NEMA 1 Coil Enclosure Standard
NEMA 4,5,7 Also Available
All Voltages Available

$594.00$2,995.00

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General Specifications

  • Stainless Steel General Purpose Valves
  • Normally Open (Energize to Close)
  • 2-Way
  • Investment Cast (CF8M) Body
  • Full Ported
  • Packless
  • Internal Piston-Pilot Operated
  • Buna® Leakproof seat for Positive Shutoff

SERVICE RATINGS

  • Pipe Sizes Available:   1/8” , 1/4” , 3/8” , 1/2” , 3/4” , 1” , 1¼” , 1½” , 2” NPT (Specify)
  • Media:
    • Corrosive, Non-volatile Liquids
    • Air
    • Water
    • Oils (Max Viscosity: 30W SAE , 400 SSU)
  • Pressure Range5-150 psi OR 10-300
    • For optimal valve operation, specify your actual pressure range. A minimum pressure drop of 5psi OR 10psi (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 10-300 psi.
Your corrosive application has a Maximum Pressure of 110 psi > pick the 5-150 psi rated valve).

For more details email sales@gouldvalve.com or Consult our Valve Specialists @ 800.634.6853

  • Voltages Available: (Please specify)
    • 12 , 24 , 120 , 240 , 480 VAC  50-60Hz  18 Watts Max
    • 6 , 12 , 24 , 48 , 115 , 230 VDC 24 Watts Max
  •  Coil 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

Valve Construction

  • GLOBE BODIES are Investment Cast (CF8M).  rated: WSP 200 psi – WOG 1000 psi.  UNION BONNET (1/8”-1” NPT),  BOLT-DOWN BONNET (1¼” – 2” NPT)
  • BONNET ASSEMBLIES are 304 Stainless Steel (SS) Tubes with 303SS Tube Plugs welded to a 303SS (1/8”–1”NPT) or CF8M (1¼”-2”NPT) Bonnet Base.   BONNET ‘O’-Ring SEAL is Teflon® (as required).
  • PISTON ASSEMBLY is 303SS with a 303SS Buna® Leakproof SEAT SCREW and a 316SS EXPANDER RING behind a Glass & Moly-Filled Teflon® PISTON RING plus a Buna® SEAT DISC and 303SS (1/8”–¾”NPT) or CF8M (1”-2”NPT) GUIDE NUT.
  • PISTON VALVE ARMATURE is 430SS with a 303SS PILOT POINT and 316SS PINS.
  • PILOT SPRING is 302SS.

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.

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