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Kugel-Rueckschlgventile

Ball Check Valve: Non Return Valve

The ball non-return valve reliably prevents the medium from flowing back and is very effective when handling contaminated or dirty media thanks to the design of the non-return ball, which continuously releases the entire passage. This self-cleaning mechanism makes ball check valves particularly suitable for use in wastewater and sewage treatment applications where contamination and particles are common.
These valves are available in a variety of body materials, such as stainless steel, brass, PVC and cast iron, to ensure compatibility with different types of fluids, including aggressive chemicals, oils and water. The check ball itself can be coated with different materials such as EPDM (ethylene propylene diene monomer), NBR (nitrile rubber), PTFE (polytetrafluoroethylene) or Viton, depending on the operating conditions such as temperature, chemical resistance and type of fluid.
With a wide range of designs and materials, ball check valves can be customised to meet specific industrial requirements. EPDM-coated balls, for example, offer excellent resistance to heat, water and steam, while PTFE coatings are ideal for aggressive chemicals and corrosive media. Viton is suitable for applications that require resistance to high temperatures and chemical influences. Ball check valves are also available with flanged, threaded or socket weld connections, offering flexibility for installation in different systems.
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Kugelrückflussverhinderer - Kugelrückschlagventile
RB105 Ball check valve DN 50 PN16 Spheroidal cast iron Aluminium NBR Product number: 303-1006-09
Ball check valve DN 50, flange holes to EN 1092-2 connection PN16, face-to-face length to EN 558-1 series 48, ball made of aluminium NBR coated, body made of EN-GJS-400-15 (GGG40) nodular cast iron, operating pressure 16bar
Seal :
NBR
Execution :
Ball return flow preventer
Body:
Ductile Cast Iron (GGG40)
Nominal width :
DN50 - 2'' inch

€70.50*

€83.90 incl. VAT
Delivery time: in stock

Available, delivery time: in stock

Kugelrückflussverhinderer - Kugelrückschlagventile
RB105 Ball check valve DN 65 PN16 Spheroidal cast iron Aluminium NBR Product number: 303-1006-10
Ball check valve DN 65, flange holes to EN 1092-2 connection PN16, face-to-face length to EN 558-1 series 48, ball made of aluminium NBR coated, body made of EN-GJS-400-15 (GGG40) nodular cast iron, operating pressure 16bar
Execution :
Ball return flow preventer
Seal :
NBR
Nominal width :
DN65 - 2 1/2'' inch
Body:
Ductile Cast Iron (GGG40)

€92.00*

€109.48 incl. VAT
Delivery time: in stock

Available, delivery time: in stock

Kugelrückflussverhinderer - Kugelrückschlagventile
RB105 Ball check valve DN 80 PN16 Spheroidal cast iron Aluminium NBR Product number: 303-1006-11
Ball check valve DN 80, flange holes to EN 1092-2 connection PN16, face-to-face length to EN 558-1 series 48, ball made of aluminium NBR coated, body made of EN-GJS-400-15 (GGG40) nodular cast iron, operating pressure 16bar
Execution :
Ball return flow preventer
Seal :
NBR
Nominal width :
DN80 3'' inch
Body:
Ductile Cast Iron (GGG40)

€114.50*

€136.26 incl. VAT
Delivery time: in stock

Available, delivery time: in stock

RB106-Muffen-Kugel-Rückflussverhinderer-DN50-DN250-Stahl-NBR
RB106 Ball check valve 1 1/4 in. socket connection stainless steel NBR Product number: 303-1018-07
Stainless steel socket ball check valve 1 1/4 inchSocket connection BSP, length 140mm, ball made of steel NBR coated, body made of stainless steel 1.4408 (AISI316), working pressure 16bar
Nominal width :
DN32 - 1 1/4'' inch
Body:
Stainless Steel (1.4408)
Execution :
Ball return flow preventer
Seal :
NBR

€147.50*

€175.52 incl. VAT
Delivery time: in stock

Available, delivery time: in stock

RB106-Muffen-Kugel-Rückflussverhinderer-DN50-DN250-Stahl-NBR
RB106 Ball check valve 1 1/2 inch socket connection stainless steel NBR Product number: 303-1018-08
Socket ball check valve 1 1/2 inchSocket connection BSP, length 140mm, ball made of steel NBR coated, body made of stainless steel 1.4408 (AISI316), working pressure 16bar
Body:
Stainless Steel (1.4408)
Nominal width :
DN40 - 1 1/2'' inch
Seal :
NBR
Execution :
Ball return flow preventer

€150.50*

€179.10 incl. VAT
Delivery time: in stock

Available, delivery time: in stock

Kugelrückflussverhinderer - Kugelrückschlagventile
RB105 Ball check valve DN 100 PN16 Spheroidal cast iron Aluminium NBR Product number: 303-1006-12
Ball check valve DN 100, flange holes to EN 1092-2 connection PN16, face-to-face dimensions to EN 558-1 series 48, ball made of aluminium NBR coated, body made of EN-GJS-400-15 (GGG40) nodular cast iron, operating pressure 16bar
Execution :
Ball return flow preventer
Seal :
NBR
Nominal width :
DN100 - 4'' inch
Body:
Ductile Cast Iron (GGG40)

€170.00*

€202.30 incl. VAT
Delivery time: in stock

Available, delivery time: in stock

RB106-Muffen-Kugel-Rückflussverhinderer-DN50-DN250-Stahl-NBR
RB106 Ball check valve 2 in. socket connection stainless steel NBR Product number: 303-1018-09
Stainless steel Ball check valve 2 inchSocket connection BSP, overall length 175mm, ball made of steel NBR coated, body made of stainless steel 1.4408 (AISI316), working pressure 16bar
Seal :
NBR
Nominal width :
DN50 - 2'' inch
Body:
Stainless Steel (1.4408)
Execution :
Ball return flow preventer

€195.50*

€232.64 incl. VAT
Delivery time: in stock

Available, delivery time: in stock

Kugelrückflussverhinderer - Kugelrückschlagventile
RB105 Ball check valve DN 125 PN16 Spheroidal cast iron Aluminium NBR Product number: 303-1006-13
Ball check valve DN 125, flange holes to EN 1092-2 connection PN16, face-to-face length to EN 558-1 series 48, ball made of aluminium NBR coated, body made of EN-GJS-400-15 (GGG40) nodular cast iron, operating pressure 16bar
Execution :
Ball return flow preventer
Nominal width :
DN125 - 5'' inch
Body:
Ductile Cast Iron (GGG40)
Seal :
NBR

€223.50*

€265.96 incl. VAT
Delivery time: in stock

Available, delivery time: in stock

Kugelrückflussverhinderer - Kugelrückschlagventile
RB105 Ball check valve DN 150 PN16 Spheroidal cast iron Aluminium NBR Product number: 303-1006-14
Ball check valve DN 150, flange holes to EN 1092-2 connection PN16, face-to-face dimensions to EN 558-1 series 48, ball made of aluminium NBR coated, body made of EN-GJS-400-15 (GGG40) nodular cast iron, operating pressure 16bar
Execution :
Ball return flow preventer
Seal :
NBR
Nominal width :
DN150 - 6'' inch
Body:
Ductile Cast Iron (GGG40)

€326.00*

€387.94 incl. VAT
Delivery time: in stock

Available, delivery time: in stock

ARV2 Flowserve Ball Check Valve PFA Lined
Flowserve Atomac ARV2 Flanged Ball Check Valve DN 15 1/2“ PN16 PFA lined Product number: 303-1100-04
Flowserve Atomac Ball Check Valve DN15Flanged connection acc. to DIN EN 1092-2, PN16, Face to Face acc. to DIN EN 558, Series 1, Body Ductile Iron GGG40.3-PFA-lined, Ball PTFE (Solid), Max. operating pressure 16 bar, Tightness test acc. to DIN EN 12266-1 (Leak rate B)
Seal :
PTFE
Design :
2 ways
Body:
Ductile Cast Iron(GGG40.3)+PFA
Categories :
ARV2 - Ball Check Valve
Execution :
Ball return flow preventer
Nominal width :
DN15 - 1/2'' inch

€421.00*

€500.99 incl. VAT
Delivery time: in stock

Available, delivery time: in stock

ARV2 Flowserve Ball Check Valve PFA Lined
Flowserve Atomac ARV2 Flanged Ball Check Valve DN 20 3/4" PN16 PFA lined Product number: 303-1100-05
Flowserve Atomac Ball Check Valve DN20Flanged connection acc. to DIN EN 1092-2, PN16, Face to Face acc. to DIN EN 558, Series 1, Body Ductile Iron GGG40.3-PFA-lined, Ball PTFE (Solid), Max. operating pressure 16 bar, Tightness test acc. to DIN EN 12266-1 (Leak rate B)
Body:
Ductile Cast Iron(GGG40.3)+PFA
Seal :
PTFE
Design :
2 ways
Nominal width :
DN20 - 3/4'' inch
Categories :
ARV2 - Ball Check Valve
Execution :
Ball return flow preventer

€427.00*

€508.13 incl. VAT
Delivery time: in stock

Available, delivery time: in stock

ARV2 Flowserve Ball Check Valve PFA Lined
Flowserve Atomac ARV2 Flanged Ball Check Valve 1/2" Inch Class 150 PFA lined Product number: 303-1104-04
Flowserve Atomac Ball Check Valve 1/2"Flanged connection acc. to ASME B16.5, Class 150, RF, Face to Face 131mm, Body Ductile Iron GGG40.3-PFA-lined, Ball PTFE (Solid), Max. operating pressure 20 bar, Tightness test acc. to DIN EN 12266-1 (Leak rate B)
Execution :
Ball return flow preventer
Categories :
ARV2 - Ball Check Valve
Nominal width :
DN15 - 1/2'' inch
Body:
Ductile Cast Iron(GGG40.3)+PFA
Design :
2 ways
Seal :
PTFE

€443.50*

€527.76 incl. VAT
Delivery time: 3-4 weeks

Available, delivery time: 3-4 weeks

ARV2 Flowserve Ball Check Valve PFA Lined
Flowserve Atomac ARV2 Flanged Ball Check Valve 3/4" Inch Class 150 PFA lined Product number: 303-1104-05
Flowserve Atomac Ball Check Valve 3/4"Flanged connection acc. to ASME B16.5, Class 150, RF, Face to Face 150mm, Body Ductile Iron GGG40.3-PFA-lined, Ball PTFE (Solid), Max. operating pressure 20 bar, Tightness test acc. to DIN EN 12266-1 (Leak rate B)
Body:
Ductile Cast Iron(GGG40.3)+PFA
Seal :
PTFE
Design :
2 ways
Nominal width :
DN20 - 3/4'' inch
Categories :
ARV2 - Ball Check Valve
Execution :
Ball return flow preventer

€451.50*

€537.28 incl. VAT
Delivery time: 3-4 weeks

Available, delivery time: 3-4 weeks

ARV2 Flowserve Ball Check Valve PFA Lined
Flowserve Atomac ARV2 Flanged Ball Check Valve DN 25 1" PN16 PFA lined Product number: 303-1100-06
Flowserve Atomac Ball Check Valve DN25 Flanged connection acc. to DIN EN 1092-2, PN16, Face to Face acc. to DIN EN 558, Series 1, Body Ductile Iron GGG40.3-PFA-lined, Ball PTFE (Solid), Max. operating pressure 16 bar, Tightness test acc. to DIN EN 12266-1 (Leak rate B)
Seal :
PTFE
Design :
2 ways
Body:
Ductile Cast Iron(GGG40.3)+PFA
Categories :
ARV2 - Ball Check Valve
Execution :
Ball return flow preventer
Nominal width :
DN25 - 1'' inch

€466.50*

€555.14 incl. VAT
Delivery time: in stock

Available, delivery time: in stock

ARV2 Flowserve Ball Check Valve PFA Lined
Flowserve Atomac ARV2 Flanged Ball Check Valve 1" Class 150 PFA lined Product number: 303-1104-06
Flowserve Atomac Ball Check Valve 1"Flanged connection acc. to ASME B16.5, Class 150, RF, Face to Face 152.4mm, Body Ductile Iron GGG40.3-PFA-ausgekleidet, Ball PTFE (Solid), Max. operating pressure 20 bar, Tightness test acc. to DIN EN 12266-1 (Leak rate B)
Execution :
Ball return flow preventer
Categories :
ARV2 - Ball Check Valve
Nominal width :
DN25 - 1'' inch
Body:
Ductile Cast Iron(GGG40.3)+PFA
Design :
2 ways
Seal :
PTFE

€479.00*

€570.01 incl. VAT
Delivery time: in stock

Available, delivery time: in stock

ARV2 Flowserve Ball Check Valve PFA Lined
Flowserve Atomac ARV2 flange DN32 1 1/4" PN16 ball check valve PFA lined nodular cast iron Product number: 303-1100-07
Flowserve Atomac Ball Check Valve DN32Flanged connection acc. to DIN EN 1092-2, PN16, Face to Face acc. to DIN EN 558, Series 1, Body Ductile Iron GGG40.3-PFA-lined, Ball PTFE (Solid), Max. operating pressure 16 bar, Tightness test acc. to DIN EN 12266-1 (Leak rate B)
Execution :
Ball return flow preventer
Categories :
ARV2 - Ball Check Valve
Body:
Ductile Cast Iron(GGG40.3)+PFA
Design :
2 ways
Seal :
PTFE
Nominal width :
DN32 - 1 1/4'' inch

€492.50*

€586.07 incl. VAT
Delivery time: in stock

Available, delivery time: in stock

RB106_fergo_kugelrueckflussverhinderer_flansch_NBR_VITON_edelstahl
RB106 Ball check valve DN 50 PN16 Stainless steel NBR Product number: 303-1008-09
Stainless steel flanged ball check valve DN 50 PN16Between flanges according to DIN PN16, face-to-face length according to EN 558-1 series 48, ball made of steel NBR coated, body made of stainless steel 1.4408 (AISI316), operating pressure 16bar
Execution :
Ball return flow preventer
Seal :
NBR
Nominal width :
DN50 - 2'' inch
Body:
Stainless Steel (1.4408)

€565.50*

€672.94 incl. VAT
Delivery time: in stock

Available, delivery time: in stock

ARV2 Flowserve Ball Check Valve PFA Lined
Flowserve Atomac ARV2 Flanged Ball Check Valve DN 40 1 1/2“ PN16 PFA lined Product number: 303-1100-08
Flowserve Atomac Ball Check Valve DN40Flanged connection acc. to DIN EN 1092-2, PN16, Face to Face acc. to DIN EN 558, Series 1, Body Ductile Iron GGG40.3-PFA-lined, Ball PTFE (Solid), Max. operating pressure 16 bar, Tightness test acc. to DIN EN 12266-1 (Leak rate B)
Execution :
Ball return flow preventer
Categories :
ARV2 - Ball Check Valve
Nominal width :
DN40 - 1 1/2'' inch
Body:
Ductile Cast Iron(GGG40.3)+PFA
Design :
2 ways
Seal :
PTFE

€596.50*

€709.83 incl. VAT
Delivery time: in stock

Available, delivery time: in stock

ARV2 Flowserve Ball Check Valve PFA Lined
Flowserve Atomac ARV2 Flanged Ball Check Valve 1 1/2" Inch Class 150 PFA lined Product number: 303-1104-08
Flowserve Atomac Ball Check Valve 1 1/2"Flanged connection acc. to ASME B16.5, Class 150, RF, Face to Face 178mm, Body Ductile Iron GGG40.3-PFA-lined, Ball PTFE (Solid), Max. operating pressure 20 bar, Tightness test acc. to DIN EN 12266-1 (Leak rate B)
Execution :
Ball return flow preventer
Categories :
ARV2 - Ball Check Valve
Nominal width :
DN40 - 1 1/2'' inch
Body:
Ductile Cast Iron(GGG40.3)+PFA
Design :
2 ways
Seal :
PTFE

€603.00*

€717.57 incl. VAT
Delivery time: in stock

Available, delivery time: in stock

ARV2 Flowserve Ball Check Valve PFA Lined
Flowserve Atomac ARV2 flange DN50 PN16 ball check valve PFA lined nodular cast iron Product number: 303-1100-09
Flowserve Atomac Ball Check Valve DN50 Flange connection drilled acc. to DIN EN 1092-2 PN16, installation length acc. to DIN EN 558 (basic series 1), ball material PTFE solid ball, body (2-piece) nodular cast iron EN-JS 1049 (GGG40.3) / PFA lined, max.pressure 16bar, Tightness test acc. to DIN EN 12266-1 (Leak rate B)
Execution :
Ball return flow preventer
Categories :
ARV2 - Ball Check Valve
Nominal width :
DN50 - 2'' inch
Body:
Ductile Cast Iron(GGG40.3)+PFA
Design :
2 ways
Seal :
PTFE

€682.50*

€812.18 incl. VAT
Delivery time: in stock

Available, delivery time: in stock

Reliable Backflow Prevention with Ball Check Valves

A ball check valve, or Kugelrückschlagventil, is a dependable choice for stopping the backflow of fluids in industrial pipelines. This valve features a ball that moves freely, sealing off the flow path whenever backflow happens. The ball lifts up when the medium flows in the right direction, creating a clear passage. Thanks to this design, ball check valves are especially effective for handling contaminated or dirty media, making them perfect for wastewater applications.
At Fergo Armaturen, we provide ball check valves made from various materials to suit your specific needs. Our range includes options with stainless steel and GGG40 cast iron housings, ensuring they can withstand tough conditions. Plus, we offer a wide selection of ball coatings, such as EPDM, NBR, PTFE, and Viton, to guarantee compatibility with different fluids.
Our RB106 stainless steel ball check valve is highly resistant to corrosion, making it ideal for challenging industrial settings. The RB105 model, which also comes in various material choices, excels at preventing medium backflow. Both models are available with different flange and threaded connection types, giving you flexibility for installation in various systems.
With decades of experience in industrial valves, Fergo Armaturen is committed to delivering top-notch ball check valves tailored to your requirements. Reach out to our specialists for expert advice and a customized solution for your application.

FAQ on ball check valves


A ball check valve is a device used in pipework systems to prevent the backflow of liquids. It consists of a housing with a ball valve that can move freely. When the fluid flows in the desired direction, it pushes the ball away and releases the flow. In the event of a backflow, however, the ball is forced into position by the opposing pressure, blocking the flow and preventing a backflow.
Ball check valves are versatile and can be used in:
  • Water and waste water treatment 
  • Industrial plants
  • Heating and cooling systems
  • Food and beverage industry
  • Chemical and pharmaceutical industry
The use of ball check valves is important to prevent contaminated water from entering drinking water systems or hazardous chemicals or pollutants from flowing back into production processes and causing damage. They also help to maintain the integrity of pipework systems and make operations safer.
  • Stainless steel: When high corrosion resistance and hygiene requirements are important.
  • Sparöguss (GGG40): For applications where high strength and impact resistance are required and corrosion resistance is less critical.
  • Flange connection: Ensure that the flanges are clean and free from contamination. Use suitable gaskets and tighten the screws evenly to ensure a leak-free connection.
  • Socket connection: Ensure that the threads are clean. Use a suitable sealant (e.g. PTFE tape) and screw the socket connection tightly, but not too tightly, to prevent damage.
  • Low pressure loss
  • Simple construction and maintenance
  • Durability and reliability
  • Suitable for horizontal and vertical installations
Regular inspections are important to ensure that the ball and seals are in good condition. If necessary, worn parts should be replaced to ensure optimum function. Contant to our customer service for the additonal accessories.