Series 681

Good to know Data & facts

Connection size

DN 15 to DN 50 1/2" to 2"

Set pressure

Inlet pressure: up to 40 bar, Outlet pressure: 0.5 bar to 15 bar

Temperature

-20 °C to 120 °C

Product design

straightway form

Material

Gunmetal

Nominal width

DN 15 to DN 50
1/2″ to 2″

Medium

Liquids

neutral,
non-neutral
Air, gases and vapours

neutral,
non-neutral
Potable water

Temperature in °C

-20 °C to 120 °C

Pressure in bar

Inlet pressure: up to 40 bar, Outlet pressure: 0.5 bar to 15 bar

The proven, robust pressure reducing valves in full-metal-version with threaded connectors have not only proven themselves in drinking water application, but especially also in rough industrial operating conditions with many different, also aggressive substances and at fluctuating environmental temperatures. The materials used are optimised for water of different qualities and for warm water applications.

Besides the standard range of adjustment of 1 to 8 bar the additional outlet pressure ranges of 0,5 bar to 2 bar and 5 bar to 15 bar cover a wide application range.

Optionally available with female thread.

connection types

Internal pipe thread
Male thread

Drinking water supply according to DIN 1988
process water supply in industrial-and building technology
Snow-making equipment
Fire extinguishing technology and sprinkler systems
Shipbuilding and offshore equipment
Commercial and industrial plants

Use of pressure reducing valves if a certain pressure on the output side must not be exceeded in the pipe network despite different pressures on the input side.