The Dungs 224-253A CPI 400 (closed position indicator) is an interlock switch with a visual indication in a polycarbonate housing that visually and electrically indicates when the valve is either open or closed. The CPI 400 is suitable for making and/or breaking a circuit when the valve position changes. It mounts directly to Dungs' automatic shutoff valves.
While code requirements may vary, FM requires 217-665A for visual indication on 1" and larger safety valves, so the CPI 400 meets this requirement.
CPI 400 SPDT switch requires no auxiliary power. The CPI is suitable for making and/or breaking a circuit when the valve is opened or closed. An open valve is indicated by green neon light. A closed valve is indicated by orange neon light. When the optional 24 VAC/VDC light is used, the closed valve is indicated by a red light.
The CPI 400 is recommended for industrial and commercial heating applications that require visual and/or electrical indication of valve position on automatic shutoff valves. The CPI 400 is suitable for dry natural gas, propane, butane, air, and inert gases. Suitable for up to 0.1% by volume, dry H2 S, when used with nickel, plated brass adapter.
Accessories/Replacement Parts Ordering Information:
| PART NO. | DESCRIPTION |
| 240-837 | Clear plastic cover with mounting screws |
| 231-420 | Orange & Green 120 VAC neon lights |
| 248-183 | Red & Green 24 VDC neon lights |
| 220-566 | 1/2” NPT conduit adapter (PG 11) |
| 224-417 | Brass adapter |
| 224-417B | Ni Plated Brass Adapter |
| Temperature Range | -40 °F to +150 °F (-40 °C to +65 °C) |
|---|---|
| Connection | Set Screw with G 1/8" ISO 228 plunger |
| Maximum Operating Pressure | 7 PSI (500 mbar) |
| CPI Housing | Polycarbonate |
| Electrical Connection | Screw terminals via 1/2" NPT conduit connection |
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By John
from Crooksville OH
Yes, I would recommend this product to a friend or co-worker
Service and Delivery was very Good, The Product works well and is easily installed, Replacement was easy, and simple
By David
from Temperance MI
Yes, I would recommend this product to a friend or co-worker
Component works wonderfully
By John
from Crooksville OH
Yes, I would recommend this product to a friend or co-worker
good product works as intended.
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