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Three way valves have three pipe connections and two orifices. When one orifice is open, the other is closed, and vice versa. They are commonly used to alternately apply pressure to and exhaust pressure from a valve actuator or a single-acting cylinder.
Normally Closed (NC)
When the valve is de-energized, the pressure port is closed and the exhaust port is connected to the cylinder poert. When the valve is energized, the exhaust port is closed and the pressure port is connected to the cylinder port.
Normally Open (NO)
When the valve is de-energized, the pressure port is connected to the cylinder port and the exhaust port is closed. When the vlave is energized, the pressure port is closed and the cylinder port is connected to the exhaust port.
Universal (Univ)
This allows the vlave to be connected in either the Normally Closed or Normally Open position ... or to select one of two fluids or to divert flow from one port to another.
Solenoid valves are supplied, as listed, with either Red-Hat II molded epoxy solenoids or Red-Hat solenoids with metal enclosures. Red-Hat II valves are identified by the letter "G" or "H" in their catalog numbers e.g., 8320G1. Many optional features may be added to your valves; e.g., high-temperature Class H molded coils, manual operators, and metering devices. See the Optional Features Section for details.
De-Energized
Energized
8300/8315 Series - General Service Solenoid Valves
Direct Acting - Brass or Stainless Steel Bodies - ¹/8" to ½" N.P.T.8314 Series - General Service Solenoid Valves
Direct Acting - Brass or Stainless Steel Bodies - ¹/8" and ¼" N.P.T.8316 Series - Air and Water Solenoid Valves
Pilot Operated - Brass Body - ³/8" to 1" N.P.T.8316 Series - Zero Minimum Air and Inert Gas Solenoid Valves
Air Piloted - Spring Return - Shutdown System
Brass Bodies - ¼" to ½" N.P.T.8316 Series - Zero Minimum Air and Inert Gas Solenoid Valves
Air Piloted - Spring Return - Shutdown System
316 S.S. Bodies - ¼" to ½" N.P.T.8317/8321 Series - Quick Exhaust Solenoid Valves
Pilot Operated - Brass or Stainless Steel Bodies - ¼" and ³/8" N.P.T.8320 Series - General Service Solenoid Valves
Direct Acting - Brass or Stainless Steel Bodies - ¹/8" and ¼" N.P.T.8325/8380 Series - Sub-Miniature Solenoid Valves
Direct Acting - Brass, Stainless Steel or Aluminum Bodies - ¹/8" N.P.T.8327 Series - High Flow Valves
Direct Acting - Brass and 316 S.S. Bodies - ¼" N.P.T.8360 Series - Air and Water Solenoid Valves
Direct Acting - Plastic Body - ¼" Compression ConnectionOffshore Series - Offshore Solenoid Valves
Explosionproof - ¼" N.P.T.8037/8308/8310 Series - Manual Reset Solenoid Valves
Brass, Steel or Stainless Steel Bodies - ¼" to 1" N.P.T.HV264153 Series - Universal Manual Reset Solenoid Valves
Air Assisted Pilot - Brass Body - ³/8" N.P.T.
