Vertical lift check valve with automatic relief Z 40.2

Is used as automatic working closing element, which prevents backflow of medium in displacement pipelines. If the check valve is open, the bypass chanell is closed and vice versa. The flow capacity in bypass can be controlled by throtlling diaphragm, which should be set regarding to individual parameters of pressure/flow.

More informations can be found below in catalogue lists.

Pressure/temperature ratings

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Product Description

Type PN DN Catalogue list
Z 40.2 117-X100 100 65-200 Display PDF
Z 40.2 117-X160 160 65-200 Display PDF
Z 40.2 117-X250 250 65-200 Display PDF

Produced design

Connection 1 – Flanged
Operation 7 – Automatic
Body material 0 – Stainless steel, 4 – Forged carbon steel, 5 – Cast carbon steel