Non-Return flap valves MULTITUBE0 pages

MULTITUBE

The drainage & sewerage backwater protection

VALVES/ NON-RETURN AND FLAP VALVES

PRODUCT ADVANTAGES
z z Reliable : high mechanical strength due to GRP construction; design verified by Finite Element
Stress Analysis; durable materials

z z Watertight : resistant up to 1 bar (10 m head), back pressure (0,8 to1,0 bar by model); integral
rubber seals easily replaced if damaged

z z Light weight : fast and easy installation, most sizes can be handled by one person; very low
operating pressure (cracking head) compared with metal flap valves

z z Corrosion resistant : high resistance to corrosion and UV degradation; no coatings needed;
long service life; low maintenance

z z Quality : NORHAM is certified to ISO 9001

protection against backwater/FLOODING

Designed &
Manufactured
by NORHAM

DESIGNER & SUPPLIER

N° 1997/8004.4

Z.A DRUISIEUX — 26260 SAINT DONAT SUR L’HERBASSE - FRANCE
TÉL : +33(0)4 75 45 00 00 - FAX : +33(0)4 75 45 17 05 — www.norham.fr

COUPLINGS
& SEALS

PLUGS

NON-RETURN
AND FLAP VALVES

PENSTOCKS &
REGULATORS

MARCH 2013