Ball check valves

EkoWodrol ball check - first with fully open position and a constant K factor starting from the flow rate of 0.7 m/s

Patented EkoWodrol ball check valves, due to the unique characteristics and usable features, are widely used in ordinary lift stations and pumping stations with separation of solids and pumps. Thanks to safety and ease of use (the possibility of placing the cover in service position), they are also valued by Users of sewer systems.

TYPE ESK: Ball check valve + Elbow
TYPE COMBI: Ball check valve + Elbow + Knife gate
TYPE ESL: In-line ball check valve

zawory_lineup2a

Key features

1. ŁATWIEJSZA EKSPLOATACJA PRZEPOMPOWNI

Specjalna konstrukcja zaworu umożliwia łatwy dostęp do wnętrza przewodów tłocznych, wirnika lub samej kuli, bez potrzeby demontażu zaworu. Nasi klienci wykonują serwis zaworu o średnicy DN80 w ok. 5 minut. Obsługa pozostałych zaworów trwa od 2 do nawet 4 razy dłużej.

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2. MNIEJSZE KOSZTY SERWISU

Plastikowe sztućce, pieluchy czy koszulki – to także spotykane rzeczy w kanalizacji ściekowej, mogące łatwo zatykać zwykłe zawory. Zawór SZUSTERsystem jest w pełni otwarty już przy prędkości przepływu 0,7 m/s co czyni go odpornym na zatykanie. Aby to udowodnić, przeprowadziliśmy test który możesz obejrzeć na naszym kanale na YouTube.

3. OSZCZĘDNOŚĆ MIEJSCA W PRZEPOMPOWNI

Kompaktowe rozwiązanie 2w1 (kolano, zawór zwrotny) lub 3w1 (kolano, zawór zwrotny, zasuwa nożowa) ze zmniejszoną liczbą połączeń kołnierzowych pozwala oszczędzić znaczną ilość miejsca w przepompowni ścieków, a tym samym zmniejszyć koszty budowy inwestycji.

1. QUICK ACCESS TO THE INTERIOR OF THE SYSTEM

The easy-access design allows for quick servicing without dismantling the whole valve. Customers perform the DN80 valve service in a average of 5 minutes. Service of other valves lasts up to 4 times longer.

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1. QUICK ACCESS TO THE INTERIOR OF THE SYSTEM

The easy-access design allows for quick servicing without dismantling the whole valve. Customers perform the DN80 valve service in a average of 5 minutes. Service of other valves lasts up to 4 times longer.

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2. PREVENT CLOGGING

Plastic cutlery, diapers and more can often be found in sewage systems. These items can easily clog common valves. This valve’s fully open starting position from the flow rate of 0,7 m/s eliminates this issue. We’ve proven the quality of our promise in the video test on YouTube. 

2. PREVENT CLOGGING

Plastic cutlery, diapers and more can often be found in sewage systems. These items can easily clog common valves. This valve’s fully open starting position from the flow rate of 0,7 m/s eliminates this issue. We’ve proven the quality of our promise in the video test on YouTube. 

3. SPACE-SAVING, LIGHTWEIGHT CONSTRUCTION

With a choice of 2-in-1 (elbow + check valve) or 3-in-1 (elbow + check valve + knife gate), this compact solution saves on cost. Minimum flange connections takes up less space in the lift station, which in turn reduces construction costs.

3. SPACE-SAVING, LIGHTWEIGHT CONSTRUCTION

With a choice of 2-in-1 (elbow + check valve) or 3-in-1 (elbow + check valve + knife gate), this compact solution saves on cost. Minimum flange connections takes up less space in the lift station, which in turn reduces construction costs.

Does it work?

Watch the video testimonials from users of our valves

Promo video

Technical details

EkoWodrol Elbow Ball Check Valves type ESK 01 or COMBI 01 (with threaded connection), and ESK 11 or COMBI 11 (with flange connection) are used for self-actuating protection against reversible wastewater flow from the backflow of the medium the moment the pump/compressor stops working (except ESK 11.L – when the pump/compressor starts working). An additional function of type COMBI is the possibility of manual cutting off at any time the flow of fluid by closing the knife gate valve, which is an integral part of the construction. Elbow check valves are used in wastewater systems with or without the fecal matter up to the the temperature of 40ºC and a pH range of 4-8.

Range of available diameters: DN32 – DN300.

✔  Pressure rated to PN 1.6 MPa (all valves are tested to PN 1.0 MPa leak test / PN 1.6 MPa hydrostatic shell test).

✔  Medium temperature: max 40ºC (temporarily to 60ºC)

✔  Painted with a 200 μm thick coat of epoxy paint, RAL 5005 (optional: 300 μm, other colours).

✔  Flanges complying with EN 1092-2.

✔  EN 12050-4 tests and requirements.

Valve versions

Type of check valveCharacteristicsExamples of application
Long version (L) The valve in L verison has a free passage for the ball
with a nominal diameter of the valve
Pumping station with separation of solid parts,
pneumatic pumping stations.
Version with floating ball (F)The valve in F verison is equipped with a ball, so-called “floating” ball,
with a specific weight of approx 0.8 g/cm3
Backwater protection.
Version with quasi ball (Q)The valve in Q version is equipped with a quasi floating ball with a specific weight of approx 1.02 g/cm3Pumping stations, pumping stations with separation of solids, pumps with inverter
Version with drainage (D)The valve in D version is equipped with drain plug
for valve drainage
Pumps, dry lift stations, gravity installations
with anti reflux valves
Click to enlarge

Table of options

DNPN 10PN 16Cast IronDuctile IronLong version (L)Floating ball (F)Quasi ball (Q)Drainage (D)
Type ESK 01 – threaded
32regularoptionregularn/an/an/an/an/a
40regularoptionregularn/an/an/an/an/a
50regularoptionregularn/an/aoptionn/an/a
Type ESK 11 – flanged
50regularoptionregularn/an/aoptionn/an/a
65regularoptionregularn/an/aoptionn/an/a
80regularoptionregularn/aoptionoptionoptionoption
100regularoptionregularn/aoptionoptionoptionoption
150regularoptionn/aregularn/aoptionoptionoption
200regularoptionn/aregularoptionoptionoptionoption
250regularoptionn/aregularn/aoptionn/aoption
300regularoptionn/aregularn/aoptionn/aoption
Typ COMBI 01 – threaded inlet, flanged outlet
50regularn/aoptionn/an/aoptionn/an/a
Typ COMBI 11 – flanged
50regularn/aoptionn/an/aoptionn/an/a
65regularoptionregularn/an/aoptionn/an/a
80regularn/aoptionn/an/aoptionoptionoption
100regularn/aoptionn/an/aoptionoptionoption
Type ESL 01 - threaded
32regularoptionn/aregularn/an/an/an/a
40regularoptionn/aregularn/an/an/an/a
50regularoptionn/aregularn/aoptionn/an/a
Type ESL 11 - flanged
50regularoptionn/aregularn/aregularn/an/a
65regularoptionn/aregularn/aregularn/an/a
80regularoptionn/aregularn/aregularoptionn/a
100regularoptionn/aregularn/aregularoptionn/a
125regularoptionn/aregularn/aregularoptionn/a
150regularoptionn/aregularn/aregularoptionn/a
Kliknij aby powiększyć tabelkę

EkoWodrol elbow check valves are made from cast iron (DN32 – DN150) or ductile iron (DN200 – DN300). Their optimal ranges of working pressure are adapted to the pressure occurring in the sewage systems.

Ball check valves dimensions

Click to enlarge
Click to enlarge
Click to enlarge

Ball check valves dimensions

Elbow ball check valves installation method

Our valve substitutes an elbow on the pipeline and eliminates one flange joint (COMBI check valve eliminates 2 flange connections). It is located at a right angle and connects a vertical pipe with the horizontal one. Please note that the technology of ESK and ESL check valves allows using them on surface and underground installations.

EkoWodrol elbow check valves, type ESK or COMBI can be mounted in horizontal and vertical drainage systems in the positions as shown.

Want a free project?

As part of the FREE PROJECT, we will select and design a sewage pumping station, create a concept for BTS Saintary System Defender as well as EKON/EKOS columns.

DNLHDdKl x nSGwζ*Weight
(mm)(„)(kg)
Type ESK 01 – threaded
328080551 1/41,41,8
40100100601 1/23,92,3
501001007522,44,2
Type ESK 11 – flanged
5010010016599125ø 19 x 42,48,3
65140140185118145ø 19 x 41,510,9
80165165200133160ø 19 x 81,716,7
100200200220156180ø 19 x 81,625,4
150280280285211240ø 23 x 81,649,6
200350350340266295ø 23 x 8 (12)1,683,7
250425425400319350ø 23 x 121,5131
300510510455375400ø 23 x 121,5197
Type ESK 11 – flanged, long version – L
80200200200133160ø 19 x 80,917,7
100250250220156180ø 19 x 81,129,6
200400400340266295ø 23 x 81,678,1
DNLHDdKl x nSGwζ*Weight
(mm)(„)(kg)
Typ COMBI 01 – threaded inlet, flanged outlet
50110100165102125ø 19 x 47522,68,6
Typ COMBI 11 – flanged
50110100165102125ø 19 x 4852,612,8
65155140180122145ø 19 x 41,516,8
80165165200138160ø 19 x 81,824,0
100200200220160180ø 19 x 81,732,7
DNLDdKl x nSGwWeight
(mm)(„)(kg)
Typ ESL 01 - threaded
32140551 1/41,9
40150591 1/23,2
502007524,1
Typ ESL 11 - flanged
5020016398125ø 19 x 47,3
65240182,5118145ø 19 x 410
80260197132160ø 19 x 813
100300216,5156,2180ø 19 x 820,8
125350247184210ø 19 x 826,2
150400282211240ø 19 x 842,2