KESSEL AG

Catalogue EN 4.1

1.1 Backwater valves

51

Backwater valve

Pipe flap valve

The dependable solution

for open end drainage pipes.

The self-actuating pipe flap valves prevent undesirable backwash into

wastewater pipes in the event of backwater or high water levels. They are

made entirely of polymer and so are 100 % corrosion-free. The pipe flap

valves are available in various sizes from Ø 110 mm to Ø 1.000 mm.

Area of application

Pipe flap valves are used in wastewater without sewage, for example in

seawater and freshwater environments. Here they serve as a backwater

valve in horizontal pipes leading into chambers or outdoors.

Pipe flap valve

for connection to open end drainage pipes

Flap self-closing. Inlet/outlet for connection to PVC pipe according to

EN 1451-1. KESSEL-Pipe Flap, manufactured from polymer, with free

hanging self activating backwater flap. For connection to open end

of pipe, gasketed inlet for push-fit connection to PVC drainage piping

according to DIN 19534 and PE-HD piping according to DIN 19537.

L

Illustration shows Ø 110 – Ø 200

B1

L

Illustration shows Ø 250 – Ø 638

1058

–

–

–

–

Illustration shows Ø 800

1264

1400

25

Illustration shows Ø 1000

416

400

420

295

417

–

500

500

320

522

–

600

659

345

655

–

–

–

–

–

–

–

–

–

–

–

385–410

495 – 525

605–638

–

–

495

* Withconnectioncouplingsitispossibletoconnectpipesofdifferentdiameters.Connectioncouplingsare

necessary where the difference in outer diameter is > 12 mm. Rights reserved for technical changes

**For wall installation

1085

Outer diameter

Ø (mm)

Ø250

Ø315

DN

in mm

250

315

H

L

B1

B2

Connection for pipe size

inmm

inmm

inmm

inmm

Ømm

400

220

345

280

–

450

225

400

410

–

Outer diameter

Ø (mm)

Ø 110

Ø 125

Ø 160

Ø 200

DN

in mm

B2

Connection for pipe size

Outer diameter

Ø (mm)

Ø405

Ø 506

Ø638

Ø800**

Ø1000**

DN

in mm

H

L

B1

B2

Connection for pipe size

inmm

inmm

inmm

inmm

Ømm

Illustration shows Ø 160

L

B1

–

–

12

0

–

–

–

–

13

6

–

–

–

–

14

2

–

–

–

–

17

0

–

–

H

inmm

inmm

inmm

inmm

Ømm

Art.no.

79 100

79 125

79 150

79 200

Art.no.

79250

79300

Art.no.

79400

79 500

79600

79800

791000

Without connection coupling, connection according to EN 1451-1

With connection coupling*, for connection to all pipe materials

Illustration shows Ø 250

Illustration shows Ø 800

1.1

B2

1

1

0

1

0

1

3

1

3

3

0

1

0

3

6

H

Ø

8

0

0

B

a

c

k

w

a

t

e

r

v

a

l

v

e

s