Non return valves

Hinged and double hinge types, and counterweight.
Models with flanges or to mount between flanges according to type.
Valve and stopper in flake-graphite cast iron, in spheroid graphite cast iron, in bronze, in steel or in stainless steel, according to the type and class of pressure.
Face to face spacing meeting most national and international standards and notably: ISO, EN, NF, BS, DIN...

DN 40 / DN 400

Pressure classes: PN 10 - PN 16 - PN 25.
VANNES Lefebvre
Robinetterie MIROUX
Groupe REG TECHNOLOGY
Avenue de Lassus
B.P. 90045
59481 Haubourdin cedex
France

Tel : +33 (03) 20 17 51 00
Fax : +33 (03) 20 17 51 01

Robinetterie spéciale en inox et métaux nobles : découvrez notre site www.ducroux-sa.fr

Examples of specific applications:

Prevention of valve knocks and of water hammers on pumping submitted to difficult operating conditions





Butterfly valves
(Miroux)


Gate valves

Diaphragm
control valves


Butterfly valves
(Lefebvre)


Membrane check valve

valves double hinges to mount between flanges (Wafer)
Type DN PN Standard   data sheet
4110 40/1200 PN.10 ISO 5752 série 20 pdfCR 30205
4116 40/1200 PN.16 ISO 5752 série 20 pdfCR 30210
4125 40/400 PN.25 ISO 5752 série 20 pdfCR 30215
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