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Dual-plate-check-valve made of GGG40 or stainless steel

Dual plate check valves can be used in pipelines to prevent the backflow of a liquid or gaseous media. Similar to the intermediate flange non-return valve, the dual plate check valve is flanged into the pipeline system. It opens its plates only in one direction. Once the pressure of the medium flowing in the chosen direction exceeds the spring pressure of the plates and the valve resistance, the two semicircular plates open and allow the medium to flow through. As the pressure drops, or if the medium changes its flow direction, the plates close reliably. Since the plates open parallel to the flow direction, the dual plate check valves have a very low resistance and allow you to realize exceptionally high flow rates (KVS). It is mandatory to ensure that no contaminated medium flows through the plates. Contaminations could block the plates or damage the seals, which are permanently vulcanized, which can result in leaks.

Dual-plate-check-valve made of GGG40 or stainless steel

Dual plate check valves can be used in pipelines to prevent the backflow of a liquid or gaseous media. Similar to the intermediate flange non-return valve, the dual plate check valve is flanged into the pipeline system. It opens its plates only in one direction. Once the pressure of the medium flowing in the chosen direction exceeds the spring pressure of the plates and the valve resistance, the two semicircular plates open and allow the medium to flow through. As the pressure drops, or if the medium changes its flow direction, the plates close reliably. Since the plates open parallel to the flow direction, the dual plate check valves have a very low resistance and allow you to realize exceptionally high flow rates (KVS). It is mandatory to ensure that no contaminated medium flows through the plates. Contaminations could block the plates or damage the seals, which are permanently vulcanized, which can result in leaks.

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dual plate check valve DN50 DR02 GGG40 epoxyd plated blue 180µm EPDM

DR02000108

dual plate check valve DN50 seal EPDM PN 10/16/25/40 DIN EN 1092-1 Form B, body made of grey cast iron wings made of stainless steel

Technical features

  • diameter DN50
  • design dual plate check valve
  • seal EPDM
  • body material GGG40 epoxyd plated blue 180µm
  • pressure range 0 - 16 bar
  • NieRuf-Exchange
    Certified

€52.90*

€62.95 VAT included.

Delivery time
in stock
Express delivery*

dual plate check valve DN300 DR04 GGG40 epoxyd plated blue 180µm EPDM

DR04000116

dual plate check valve DN300 seal EPDM PN 10 DIN EN 1092-1 Form B, body made of GGG40 epoxyd plated blue 180µm, wings made of Alu-Bronze

Technical features

  • diameter DN300
  • design dual plate check valve
  • seal EPDM
  • body material GGG40 epoxyd plated blue 180µm
  • pressure range 0 - 10 bar
  • Certified

€1,021.80*

€1,215.94 VAT included.

Delivery time
in stock
Express delivery*

dual plate check valve DN100 DR02 GGG40 epoxyd plated blue 180µm EPDM

DR02000111

dual plate check valve DN100 seal EPDM PN 10/16 DIN EN 1092-1 Form B, body made of grey cast iron wings made of stainless steel

Technical features

  • diameter DN100
  • design dual plate check valve
  • seal EPDM
  • body material GGG40 epoxyd plated blue 180µm
  • pressure range 0 - 16 bar
  • NieRuf-Exchange
    Certified

€124.80*

€148.51 VAT included.

Delivery time
in stock
Express delivery*

dual plate check valve DN150 DR02 GGG40 epoxyd plated blue 180µm EPDM

DR02000113

dual plate check valve DN150 seal EPDM PN 10/16 DIN EN 1092-1 Form B, body made of grey cast iron wings made of stainless steel

Technical features

  • diameter DN150
  • design dual plate check valve
  • seal EPDM
  • body material GGG40 epoxyd plated blue 180µm
  • pressure range 0 - 16 bar
  • NieRuf-Exchange
    Certified

€219.50*

€261.21 VAT included.

Delivery time
in stock
Express delivery*

dual plate check valve DN50 DR04 ANSI 150 GGG40 epoxyd plated blue 180µm NBR

DR04100408

dual plate check valve DN50 seal NBR ASME B16.5 / ANSI 150, body made of GGG40 epoxyd plated blue 180µm, wings made of Alu-Bronze

Technical features

  • diameter DN50
  • design dual plate check valve
  • seal NBR
  • body material GGG40 epoxyd plated blue 180µm
  • pressure range 0 - 20 bar
  • Certified

€66.00*

€78.54 VAT included.

Delivery time
in stock
Express delivery*

dual plate check valve DN300 DR03 ANSI 150 stainless steel 1.4408 EPDM

DR03100116

dual plate check valve DN300 ASME B16.5 / ANSI 150, body made of stainless steel 1.4408, wings made of stainless steel 1.4408 seal EPDM

Technical features

  • diameter DN300
  • design dual plate check valve
  • seal EPDM
  • body material stainless steel 1.4408
  • pressure range 0 - 20 bar
  • Certified

€3,321.30*

€3,952.35 VAT included.

Delivery time
On request

dual plate check valve DN65 DR03 stainless steel 1.4408 NBR

DR03000409

dual plate check valve DN65 seal NBR PN 10/16/25/40 DIN EN 1092-1 Form B, body made of stainless steel 1.4408, wings made of stainless steel 1.4408

Technical features

  • diameter DN65
  • design dual plate check valve
  • seal NBR
  • body material stainless steel 1.4408
  • pressure range 0 - 16 bar
  • Certified

€222.40*

€264.66 VAT included.

Delivery time
3 - 5 working days

dual plate check valve DN450 DR04 ANSI 150 GGG40 epoxyd plated blue 180µm FKM

DR04100219

dual plate check valve DN450 seal FKM ASME B16.5 / ANSI 150, body made of GGG40 epoxyd plated blue 180µm, wings made of Alu-Bronze

Technical features

  • diameter DN450
  • design dual plate check valve
  • seal FKM
  • body material GGG40 epoxyd plated blue 180µm
  • pressure range 0 - 20 bar
  • Certified

€5,362.50*

€6,381.38 VAT included.

Delivery time
On request

Dual-plate-check-valve: the ultimate backflow protection

The dual-plate-check-valves from NieRuf can be made from one of two materials: The high quality model is made of stainless steel and can be used with oil, fuel oil and demineralized water, which comes in handy in areas of chemical industry or plant engineering. The cheaper model is made of GGG40 and can be used with less demanding liquid and gaseous media. It is often used in building technology as well as water- and sewage technology. They come in nominal sized from DN50 to DN600, which means they can be used exclusively in larger pipelines. The seal, depending on the medium, can be made of NBR, FKM, EPDM, Viton, metal or FPM. The FKM seal is most often used with oil, while the metal seal can withstand steam very well. All plates come with a return spring. The check valves can be mounted in any installation position, but keep the flow direction of the medium in mind. It should flow from bottom to top. The opening pressure of the valve can be found in the data sheets. Individual pressure and leakage tests are possible for each dual-plate-check-valve. The mounting and final inspection can only be done by trained staff. We would love to manufacture your individual twin-plate-check-valve, feel free to contact us.


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