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

hinged discs with flanges
Type DN PN Standard   data sheet
4026 FFB 40/200 PN.16 NF EN 558-1 série 48 pdfCR 30105
4026 FFB 250/400 PN.10 NF EN 558-1 série 48 pdfCR 30110
4026 FBB 40/200 PN.16 NF EN 558-1 série 48 pdfCR 30115
4026 FBB 250/400 PN.10 NF EN 558-1 série 48 pdfCR 30120
4026 FII 40/200 PN.16 NF EN 558-1 série 48 pdfCR 30125
4026 FII 250/400 PN.10 NF EN 558-1 série 48 pdfCR 30130
4028 FFC 40/200 PN.16 NF EN 558-1 série 48 pdfCR 30135
4028 FFC 250/400 PN.10 NF EN 558-1 série 48 pdfCR 30140
4027 FFB 40/200 PN.16 NF EN 558-1 série 48 pdfCR 30145
4027 FFB 250/400 PN.10 NF EN 558-1 série 48 pdfCR 30150
4029 FFC 40/200 PN.16 NF EN 558-1 série 48 pdfCR 30155
4029 FFC 250/400 PN.10 NF EN 558-1 série 48 pdfCR 30160
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
butterfly type valves with flanges and counterweigh
Type DN PN Standard   data sheet
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4562 deleted
Butterfly type valves with flanges, counterweight ans schock absorber
Type DN PN Standard   data sheet
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