Flap check valve 1 1/4" F-F

The swing check valve is a reliable component for domestic water installations, protecting the system against unwanted backflow. Designed for standard 1 1/4" pipelines, it supports stable operation of cold and hot water circuits in residential and small commercial buildings.

The durable brass body made of CW617N resists corrosion in contact with water, while the brass closing element and NBR sealing ring maintain tightness under a nominal pressure of up to 16 bar. The internal geometry is tailored to water media, so the valve works efficiently in typical building services applications and supports consistent flow parameters.

The nickel-free design keeps all surfaces in contact with water free from nickel coating, an advantage for drinking water systems and users sensitive to this metal. The nut-to-nut connection with G1 1/4 thread simplifies installation in existing pipework, and the compact dimensions of 75 x 52 mm help when space around the pipeline is limited.

This brass check valve is a solid choice for installers looking for a robust backflow prevention valve with a nickel-free waterway and dependable performance in everyday water supply systems.

Items: ZZK4

Starý kód produktu:: JY505/32

Availability: 08.07.2026

Price 17,71 € (14,64 € without VAT)

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Choosing parameters

:: voda

Type:: Klapky

Pack:: 3 ks

:: 16 bar

:: *W v obale s čárovým kódem pro maloobchodní prodej

:: Mosaz

:: Mosaz

:: NBR

:: voda

:: Ano

:: 1 1/4"

:: MM

:: G1 1/4

:: 75

:: 52

Documents for download

Technický list-ZZK6 Technický list-ZZK4 Technický list-ZZK3 Technický list-ZZK2 images for print Návod k montáži Declaration of conformity En. Declaration of conformity CZ Technický list-ZZK1 Technický list-ZZK5 dimensions(jpg)