Visual-only flow indicator. No electrical output. Transparent polysulfone window shows poppet position to confirm flow presence. Polypropylene handles water, water-based coolants, soaps, detergents, and dilute acid/alkaline solutions.
| Quantity | Price |
|---|---|
| 1–9 | $25.45 |
| 10–24 | $23.27 |
| 25–49 | $20.05 |
| 50–99 | $18.06 |
| 100–199 | $16.24 |
| 200+ | $13.63 |
The 5-18-PP is the ERECTA SWITCH visual flow/no-flow indicator in polypropylene. Uses the same spring-loaded poppet mechanism as the 5-20 and 5-21 flow switches but replaces the reed switch with a visual indicator — allowing direct visual confirmation of flow presence without any electrical connection. Ideal as a secondary confirmation device alongside an electrical flow switch.
| Specification | Value |
|---|---|
| Series | 5-18 |
| Type | Visual indicator only — no electrical output |
| Mechanism | Spring-loaded poppet (same as 5-20/5-21) |
| Body | Angle body |
| Overall Length | 4.6 in (116.8 mm) |
| Ports | 3× 9/16-18 UNF |
| Materials | Polypropylene |
| Compliance | RoHS |
Our engineering team can verify compatibility with your application and chemistry before you order.