Fisher 167DAS Series 167DAS-85 Three-Way Switching Valve

Fisher 167DAS Series Three-Way Switching Valve is a compact, precise, easy to maintain, rugged and corrosion-resistant three-way switching valve that can steadily reduce the pressure of gaseous fluids and deliver them to pilot-operated controllers and other pneumatic instruments through 1/4 or 1/2 NPT port connections. It can adapt to temperature environments from -40 to 180°F.

167DAS-85: Ports A and C are 1/4NPT, the air film range is 40 to 125psig when port A or C is used as the inlet, and the air film range is 40 to 90psig when port B is used as the inlet.

The technical parameters of Fisher 167DAS-85 are as follows:

Connection specifications

Ports A and C: 1/4 or 1/2 NPT

Vent and control pressure connection (port D) and port B: 1/4 NPT

Pressure parameters

Maximum inlet pressure: 125psig (8.6bar) for the normal 167DAS series, 100psig (6.9bar) for the 167DAS under NACE conditions

Outlet pressure A/C: 40-125psi

Outlet pressure B: 40-90psi

Maximum diaphragm pressure: 150psi (10.3bar) above the outlet pressure setting, up to 250psi (17.2bar)

Temperature range

Standard service (167D and 167DA types use nitrile rubber NBR only): -20 to 180°F (-29 to 82°C)

Low temperature service (167D and 167DA only) and standard service (167DS and 167DAS only): -40 to 180°F (-40 to 82°C)

High temperature service (with FKM): 0 to 300°F (-18 to 149°C)

Other parameters

Pressure recording method: Internal

Approximate weight: 2.8 lbs (1kg)