MULTI NB Inclined Flap Valves — MULTI NB Series

Protection against drainage & sewage backwater/flooding. Inclined Flap Valve (minimum 15°) designed to be installed at the end of pipelines, either on vertical walls or directly onto the end of the pipe, to prevent backflow in sewage and drainage systems. Mounting Kit included: Stainless steel mechanical anchors are provided as standard for vertical mounting.

Multiple sizes from 200 - 1500 mm

COMPONENTS:

  • Body & Flap: Glass reinforced plastic using a isophtalic polyester resin
  • Seal: EPDM rubber
  • Mounting Kit: Stainless steel mechanical anchors

MULTI BD Straight Flap Valves MULTI BD Series

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  • Integral foamed EPDM rubber gasket for direct fixing to a flange or headwall
  • Stainless steel mechanical anchors are provided as standard for vertical wall mounting
  • For flange ISO PN 10 use standard stainless steel bolts and nuts (not provided)

Reliable and Durable

High mechanical strength due to Glass Reinforced Plastic (GRP) construction. Design is verified by Finite Element Stress Analysis

Watertight

Resistant up to 1 bar (10 m head) and back pressure to 1 bar (10 m head) . Integral rubber seals easily replaced if damaged.

Lightweight

Fast and easy installation. Most sizes can be handled by one person. Very low operating pressure (cracking head) compared with metal flap valves.

Corrosion Resistant

Highly resistant to corrosion and UV Degradation. No coating needed.

Resilient

Natural rubbers provide resistance to ozone, UV and mechanical compression.

Low Maintenance

Long service life and low maintenance.

Quality

Conforms to ISO 9001 quality standards.

  1. Reliable and Durable
  2. Watertight
  3. Lightweight
  4. Corrosion Resistant
  5. Resilient
  6. Low Maintenance
  7. Quality

MULTI NB Series

A-PIPE OD B-PIPE OD C-DEPTH OF SOCKET MAX JOINT DEFLECTION ANGLE WEIGHT MAX Coupling OD Range min MAX Coupling OD Range max Larger Pipe ID min Larger Pipe ID max Smaller Pipe ID min Smaller Pipe ID max Sewer Main Wall Thickness Lateral Pipe min Lateral Pipe max Core Drilling min Sewer Main Core Break min Sewer Main Core Break max Foam Qty Required DIM. A DIM B DIM C DIM D DIM E DIM F Weight Pressure Resistance GG Part Part
676 mm676 mm240 mm469 mm102 mm589 mm10,00 kg1 bar (10 m head)MULTI-500-NB
788 mm788 mm280 mm593 mm93 mm717 mm14,30 kg1 bar (10 m head)MULTI-600-NB
1003 mm935 mm450 mm700 mm120 mm1030 mm50,00 kg1 bar (10 m head)MULTI-700-NB
1125 mm1035 mm523 mm800 mm120 mm1440 mm75,00 kg1 bar (10 m head)MULTI-800-NB
1330 mm1264 mm495 mm1013 mm110 mm1400 mm105,00 kg1 bar (10 m head)MULTI-1000-NB
1525 mm1440 mm690 mm1200 mm130 mm1620 mm190,00 kg1 bar (10 m head)MULTI-1200-NB
1770 mm1640 mm800 mm1400 mm120 mm1840 mm270,00 kg1 bar (10 m head)MULTI-1400-NB
1860 mm1740 mm855 mm1500 mm120 mm1980 mm325,00 kg1 bar (10 m head)MULTI-1500-NB
343 mm343 mm150 mm180 mm81 mm285 mm1,60 kg1 bar (10 m head)MULTI-200-NB
395 mm395 mm160 mm245 mm78 mm339 mm2,10 kg1 bar (10 m head)MULTI-250-NB19102
448 mm448 mm185 mm290 mm80 mm400 mm3,70 kg1 bar (10 m head)MULTI-315-NB19122
570 mm570 mm205 mm375 mm99 mm478 mm6,30 kg1 bar (10 m head)MULTI-400-NB19145

MULTI NB Series

GG PartPartDescriptionCase Qty.Case Wt.
MULTI-200-NB200 mm flange or headwall11,60 kg
MULTI-250-NB250 mm flange or headwall12,10 kg
MULTI-315-NB315 mm flange or headwall13,70 kg
MULTI-400-NB400 mm flange or headwall16,30 kg
MULTI-500-NB500 mm flange or headwall110,00 kg
MULTI-600-NB600 mm flange or headwall114,30 kg
MULTI-700-NB700 mm flange or headwall150,00 kg
MULTI-800-NB800 mm flange or headwall175,00 kg
MULTI-1000-NB1000 mm flange or headwall1105,00 kg
MULTI-1200-NB1200 mm flange or headwall1190,00 kg
MULTI-1400-NB1400 mm flange or headwall1270,00 kg
MULTI-1500-NB1500 mm flange or headwall1325,00 kg