Valves for the Demineralised Water Plant (DM Plant)
Produces boiler-grade and process-grade demineralised water via ion exchange or RO/EDI trains. Aggressive regeneration chemicals and hygienic-grade product water create two very different valve environments on the same skid.
What are the critical valves in a Demineralised Water Plant?
Regeneration chemical dosing (Diaphragm Valves) — Corrosion-resistant, lined valves for caustic/acid regeneration chemicals. Resin bed isolation (Butterfly Valves) — Frequent-cycling isolation for the ion-exchange or RO train sequencing. Product water isolation (Ball Valves) — SS 316L construction to protect boiler-feed or high-purity water quality.
Critical Valve Points
Regeneration chemical dosing
Diaphragm Valves →Corrosion-resistant, lined valves for caustic/acid regeneration chemicals.
Resin bed isolation
Butterfly Valves →Frequent-cycling isolation for the ion-exchange or RO train sequencing.
Product water isolation
Ball Valves →SS 316L construction to protect boiler-feed or high-purity water quality.
Unit-Level Valve Strategy
- Regeneration chemical lines (caustic, HCl or sulphuric acid) need lined or high-alloy valves distinct from the product-water side
- Product DM water for pharma or high-purity boiler feed favours SS 316L construction to avoid contamination and corrosion product carryover
- Resin-bed isolation valves see frequent cycling on the regeneration sequence - this is a duty-cycle selection question, not a static one
Equipment in this Unit
Fluids in this Unit
Governing Standards
Related process units
Sealing systems specified in this unit
Connected Engineering
Sourcing valves for a Demineralised Water Plant?
Send your unit valve list — we supply the full set (Diaphragm Valves, Butterfly Valves, Ball Valves) with certification matched to ASME B31.3, in one PO.