In-line ball check or non-return valve, made of cast iron (GG25). Closing ball in resin with NBR coating. NBR sealing gasket. Female threaded connections according to UNI ISO 228/1. Surface treatment: epoxy painting (RAL 5017 - 200 micron). The 6VRFL check valve is generally used in drainage systems for sewage or liquids with suspended solids in civil and industrial installations where it is necessary to prevent the return of the fluid and operates at a nominal working pressure (PN) of 10 bar.

Key Features

Material Cast iron
Sealing NBR
DN 32 - 65
PN 10
Not the right product?
Related products


In this section you will find all the variants of this model in the catalog: you can use the filters below to make your search more specific. When you have identified the variant you need, specify the quantity and use the button to add it to your Shopping List.

Related products

Blog Waterfitters

Pressure switches, flow switches and pressure reducers | Water Fitters
How to regulate and maintain constant pressure and flow in the hydraulic system.

The important role of pressure switches and pressure reducers in a hydraulic system.

Read more
ESSW submersible drainage and sewage pump | Water Fitters
ESSW submersible drainage and sewage pump: quality, efficiency and reliability.

The new ESSW submersible drainage and sewage pump: high-quality materials and better performance.

Read more
Condensate pumps for boilers and air conditioners | Water Fitters
Condensate removal pumps: difference between air conditioning and condensing boilers.

Condensate removal pumps: difference between air conditioners and condensing boilers.

Read more
ASPRI e PRISMA surface pumps | Water Fitters
PRISMA and ASPRI: the energy-saving horizontal surface pumps by ESPA.

ASPRI and PRISMA: ESPA's optimal surface pumps for hydraulic efficiency and energy savings.

Read more