Product Catalog

Fluoropolymer-Lined Swing Check Valve (H44F46)

Industrial valves and fittings dispatch fast — wear parts and complete machines quoted on request.

Lined Valves

Fluoropolymer- and rubber-lined valves for acid, alkali and corrosive service — gate, globe, butterfly, diaphragm, check and Y-strainer, DN15 to DN1200 at PN0.6–1.6 MPa. The lining is the working surface: it suits corrosive media but not abrasive slurry, and it is the part that fails if the valve is throttled or run dry. Lining grade (PTFE, FEP or PFA) and body material are confirmed per order.

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Lined swing check valve: a hinged lined disc lifts clear of the bore on flow and drops back on reverse flow, so pressure drop is the lowest in the lined check family and solids pass without settling on a seat. Sizes DN20 to DN500 at PN0.6 to PN1.6 MPa, flanged, horizontal or vertical-up installation. It closes on reversal, not on deceleration — where water hammer on pump stop is a real risk, pair it with a damped or dual-plate check rather than relying on this valve alone.

General Specifications

Size RangeDN20 – DN500
Pressure RatingPN0.6 / PN1.0 / PN1.6 MPa
TypeSwing check, full bore
InstallationHorizontal or vertical up-flow
Max. Working Temperature-20 – 120 °C (F46 lining); ≤ 85 °C (rubber lining)

Materials & Coating

BodyCarbon steel WCB
LiningFEP (F46) on body bore, disc and seat; PTFE (F4) on request
MediaCorrosive liquids, forward flow only

Applications

Pump discharge non-return Header back-flow protection Tank fill lines Effluent transfer

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Fluoropolymer-Lined Swing Check Valve (H44F46) — 1