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Infinite Innovation, the Future of Industrial Control Systems
Infinite Innovation, the Future of Industrial Control Systems
PRODUCT POSITION:HOMEPRODUCT—FISHER 167DA-11
FISHER 167DA-11
Parameters / Specifications Model: Fisher 167DA‑11 Series: Fisher 167D Series Switching Valves Type: Three‑way switching valve (Ports A and C are main flow paths; Port B and control/vent Port D as described) Body Size / End Connections: Ports A and C: ¼ in or ½ in NPT; Ports B and D: ¼ in NPT Maximum Inlet (Body) Pressure: 125 psig (≈ 8.6 bar) for standard 167DA configurations Set Pressure (Control Spring Range): One of the available spring ranges for 167DA series (for example 14‑20 psig, 16‑35 psig, 25‑60 psig, 40‑125 psig) — the “‑11” suffix corresponds to one of these, detailed value should be checked in the ordering code Temperature Capability (Standard Service): ‑20 °F to +180 °F (≈ ‑29 °C to +82 °C) for standard construction; low‑temperature service or high‑temperature service versions available Approximate Weight: ~1.2 lb (≈0.5 kg) Flow / Sizing Coefficient (Wide‑Open): For ¼ in NPT version: Cv ≈ 30.58; for ½ in NPT version: Cv ≈ 32.22 Application: Switching pneumatic control signals, instrument air systems, diverting flow in control circuits, actuation logic for pneumatic systems
DESCRIBE
The Fisher 167DA‑11 is a three‑way switching valve in the Fisher 167D Series. The “167DA” designation indicates a three‑way configuration (ports A, B, and C with control port D) used to switch or vent pneumatic control pressures. The “‑11” suffix refers to a specific spring‑range and factory configuration. This valve is designed to deliver a constant reduced pressure of gaseous fluid to pilot‑operated controllers or other pneumatic instrumentation, or to redirect the flow between ports when the control pressure crosses a setpoint.
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