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Fisher™ 167D Series Switching Valves
167D Series switching valves are used to deliver constant reduced pressure of gaseous fluids to pilot-operated controllers and other pneumatic instrumentation.
Types 167D and 167DS are two-way switching valves. Types 167DA and 167DAS are three-way switching valves.
Fisher™ 167D Series Switching Valves


Available Constructions
167D and 167DS: two-way switching valves
167DA and 167DAS: three-way switching valves
Body Size and End Connection Style
Ports A and C: 1/4 or 1/2 NPT
Vent and Control Pressure Connections (Port D) and Port B: 1/4 NPT
Maximum Inlet Pressure (Body Rating)
400 psig / 27,6 bar?
Temperature Capabilities
Standard Bolting: -20 to 180°F / -29 to 82°C
Stainless Steel Bolting: -40 to 180°F / -40 to 82°C
FKM Trim: 0 to 300°F / -18 to 149°C
Pressure Registration
Approximate Weights
Types 167D and 167DA: 1.2 Pounds / 0,5 kg
Types 167DS and 167DAS: 2.8 Pounds / 1 kg
Additional Technical Data
For additional technical information, contact your local Sales Office or refer to technical documentation.


  • Compact
  • Easy and Accurate Adjustment
  • Ease of Maintenance
  • Rugged Construction
  • Corrosion Resistant Fasteners
  • Optional Stainless Steel Material Construction


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