Series 5 · ERECTA SWITCH®

5-18 — Flow/No-Flow Indicator

Name: 5-18 Flow/No-Flow Indicator
Brand: ERECTA SWITCH

Visual-only flow indicator. No electrical output. Transparent polysulfone window shows poppet position to confirm flow presence. Available in Polypropylene, Acetal, and Kynar PVDF.

Product

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Diagram

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Select Material

Choose Your 5-18 Material

The 5-18 is available in three wetted materials. Polypropylene for water-based and mild chemical service. Acetal for solvents, fuels, and hydrocarbons. Kynar PVDF for aggressive acids, halogens, and ultra-high-purity applications.

Polypropylene 5-18-PP Starting at $13.63 View Product → Acetal 5-18-AC Starting at $16.24 View Product → Kynar PVDF 5-18-KR Starting at $26.87 View Product →

Specifications

Common specifications across all 5-18 material variants.

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	PP / AC / KR
Compliance	RoHS

Need Help Selecting a Material?

Our engineering team can verify chemical compatibility with your application before you order.

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