Check Valves

Non-return valves to prevent backflow in pressurised piping systems. Available in brass for sanitary networks and cast iron with double disc for industrial pipework.

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📘 Verified from MT 2026 Catalogue

Reliable backflow prevention from residential to industrial

MT check valves prevent reverse flow without operator intervention — the disc/ball lifts under forward flow and seats automatically against backpressure. Three families: Light Type (brass body, metallic shutter, ½″–2″ for sanitary networks), Heavy Type (reinforced brass for industrial duty up to PN-25, threaded F-F BSP), and Bottom valve with strainer foot (suction lines, immersed pump intakes) up to 2½″.

Stainless steel range (AISI 316/CF8M) for chemical, food and pharmaceutical lines. Cast iron range (GG-25 / GJL-250) with epoxy coating for HVAC and water treatment. Working pressures up to PN-16 for cast iron and PN-25 for brass. Operating temperature -10 °C to +120 °C typical, depending on series.

Body Materials

CW617N BrassAISI 316GG-25 Cast IronEpoxy RAL 5013

Seal Options

Metal-to-metalPTFEEPDMNBR

Connections

F-F BSPM-F BSPDIN PN10/16Wafer

Certifications

CE/PED 2014/68/EUWRAS (brass)ACS

Filter by Material:

F-F Non Return Valve Light Type with Metal Shutter 1/2"

Brass

REF. 4215015

Check Valves

Reliable backflow prevention from residential to industrial

F-F Non Return Valve Light Type with Metal Shutter 1/2"

F-F Non Return Valve Heavy Type with Metal Shutter 1"

F-F Non Return Valve Light Type with Metal Shutter 1"

F-F Non Return Valve Light Type with Metal Shutter 3/4"

F-F Non Return Valve Heavy Type with Metal Shutter 3/4"

F-F Non Return Valve Heavy Type with Metal Shutter 1/2"

F-F Non Return Valve Light Type with Metal Shutter 1 1/4"

F-F Non Return Valve Heavy Type with Metal Shutter 1 1/4"

F-F Non Return Valve Light Type with Metal Shutter 1 1/2"

F-F Non Return Valve Light Type with Metal Shutter 2"

Stainless Steel Double Disc Check Valve 2 1/2"

Stainless Steel Double Disc Check Valve 3"

Stainless Steel Double Disc Check Valve 4"

F-F Non Return Valve Heavy Type with Metal Shutter 1 1/2"

F-F Non Return Valve Heavy Type with Metal Shutter 2"

F-F Non Return Valve Light Type with Metal Shutter 2 1/2"

F-F Non Return Valve Light Type with Metal Shutter 3"

Stainless Steel Double Disc Check Valve 2"

F-F Non Return Valve Heavy Type with Metal Shutter 2 1/2"

F-F Non Return Valve Heavy Type with Metal Shutter 3"

F-F Non Return Valve Light Type with Metal Shutter 4"

Stainless Steel Double Disc Check Valve 5"

Stainless Steel Double Disc Check Valve 6"

Stainless Steel Double Disc Check Valve 8"

Ball Check Valve, NBR Ball, Flanged End DN 50

Ball Check Valve, NBR Ball, Flanged End DN 65

Ball Check Valve, NBR Ball, Flanged End DN 80

Ball Check Valve, NBR Ball, Flanged End DN 100

Check Valve Threaded End NBR Ball Pn 10 2"

Check Valve Threaded End NBR Ball Pn 10 1 1/4"

Check Valve Threaded End NBR Ball Pn 10 1 1/2"

F-F Non Return Valve Heavy Type with Metal Shutter 4"