Ball check valves

EkoWodrol ball check - first with fully open position and a constant K factor starting from the flow rate of 2.3 fps

Patented EkoWodrol ball check valves (US 8,146,618 B2, US 8,082,949 B2), 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 3” 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 3” 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 2.3 fps 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 2.3 fps 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.

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. 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 104ºF and a pH range of 4-8.

Range of available diameters: 1 1/4″ – 12″.

✔  Pressure rated to 230PSI (tested to 150PSI leak test/230PSI hydrostatic shell test).

✔  Medium temperature: max 104ºF (temporarily to 140ºF).

✔  Flanges complying with ANSI/ASME B16.1 Class 125.

✔  Patents no.: US 8,146,618 B2, US 8,082,949 B2.

✔  API 598 tests and requirements.

✔  Painted with a 200 µm thick coat of epoxy paint.

Valve versions

Type of check valveCharacteristicsExamples of application
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 49.9 lb/ft3
Backwater protection (valve is fully opened
with the velocity of 0.66 fps)
Version with quasi ball (Q)The valve in Q version is equipped with a quasi floating ball
with a specific weight of approx 63.7 lb/ft3
Lift stations, lift 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

DNNPSCast IronDuctile IronFloating ball (F)Quasi ball (Q)Drainage (D)
Type ESK 01 – threaded
321 1/4″regularn/aoptionn/an/a
401 1/2″regularn/aoptionn/an/a
502″regularn/aoptionn/an/a
Type ESK 11 – flanged
502″regularn/aoptionn/an/a
803″n/aregularoptionoptionn/a
1004″n/aregularoptionoptionn/a
1506″n/aregularoptionoptionoption
2008″n/aregularoptionoptionoption
25010″n/aregularoptionn/aoption
30012″n/aregularoptionn/aoption
Typ COMBI 01 – threaded inlet, flanged outlet
502″regularn/aoptionn/an/a
Typ COMBI 11 – flanged
502″regularn/aoptionn/an/a
803″n/aregularoptionn/an/a
1004″n/aregularoptionoptionoption
Typ ESL 01 - threaded
502″n/aregularoptionn/an/a
Typ ESL 11 - flanged
803″n/aregularregularoptionn/a
1004″n/aregularregularoptionn/a
Kliknij aby powiększyć tabelkę

EkoWodrol elbow check valves are made from cast iron (1 1/4″ – 2″) or ductile iron (3″ – 12″). 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 quote?

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

DNNPSLDKl x nNPTWeight
[mm][inch](„)[lb]
Typ ESL 01 - threaded
50-7 7/8-2”6,6
Typ ESL 11 - flanged
803”9 1/27 1/26ø 3/4" x 423,2
1004” 11 1/297 1/2ø 3/4" x 840,3
DNSizeLHDKl x nSGwζ*Weight
[mm][inch](„)[lb]
Typ ESK 01 – threaded
321 1/4”3 1/8”3 1/8”2 3/16”1 1/41,44
401 1/2”3 3/4”3 3/4”2 3/8”1 1/23,95.1
502”3 3/4”3 3/4”3”22,49.3
Typ ESK 11 – flanged
502”3 3/4”3 3/4”6 1/2”4 3/4”ø 3/4″ x 42,416.1
803”6 1/2”6 1/2”7 1/2”6”ø 3/4″ x 41,733.3
1004”8”8”9”7 1/2”ø 3/4″ x 81,656.3
1506”11”11”11”9 1/2”ø 7/8″ x 81,6109.8
2008”14”14”13 1/2”11 3/4”ø 7/8″ x 81,6203.5
25010”17”17”16”14 1/4”ø 1″ x 121,5329.4
30012”20 1/2”20 1/2”19”17”ø 1″ x 121,5491.6
DNSizeLHDKK1l2 x Tl 2Gwζ*Weight
[mm][inch](„)[lb]
Typ COMBI 01 – threaded
502”4 1/2”3 15/16”NPT 2”4 3/4”NPT 2”3/4” x 22 x 5/8-11 UNCNPT 2”NPT 2” 2,619
Typ COMBI 11 – flanged
502”4 1/2”3 3/4”6 1/2”4 3/4”4 3/4”3/4” x 22 x 5/8-11 UNC3/4” x 42,629
803”7 1/16”6 1/2”7 1/2”6”6”3/4” x 22 x 5/8-11 UNC3/4” x 454
1004”8 1/4”8”9”7 1/2”7 1/2”3/4″ x 62 x 5/8-11 UNC3/4″ x 874.3
DNNPSLDKl x nNPTWeight
[mm][inch](„)[lb]
Typ ESL 01 - threaded
50-7 7/8-2”6,6
Typ ESL 11 - flanged
803”9 1/27 1/26ø 3/4" x 423,2
1004” 11 1/297 1/2ø 3/4" x 840,3