New Generation of Valves

New from George Fischer Piping Systems are the Ventilating- and Bleed valves, now even more
reliable. An innovative PP-H float on the Ventilating- and Bleed valve type 591 ensures complete and
reliable venting of the pipe system. At the same time, the valve prevents media overflow.

These valves are easy to install and practically maintenance-free, thanks to the compact construction and innovative design details geared to maximum safety, ergonomics and cost efficiency. The many different dimensions and optimal sizes allow using the valves under nearly all space conditions and in any system design. The valves are positioned at the absolute or temporary high points in the system, after pumps and at turning points.

Air can occur in the piping system for many reasons, may include (1) during operation, dissolved
air can be released into the system through pumps, valves, fittings and other pipe components;
(2) when filling tanks and pipelines, air inclusions may occur; and finally (3) pressure drops or
temperature increases can release dissolved air. The new valve types 591 and 595 control the
aerating and deaerating of piping systems and tanks with high precision and absolute dependability.
They contribute significantly to the safety and protection of your system.

The new Ventilating- and Bleed valves from GF Piping Systems are now even more reliable; every
detail has been exceptionally well thought out.

Additionally, the check valves type 561 and 562 have been redesigned and ideally complement the
Georg Fischer Piping Systems line of plastic valves. The standard cone check valve type 561 seals
with medium pressure while the type 562 is equipped with a spring which can be installed in any
position. The safety and durability of your system is guaranteed and easy to realize.

Together with the strainer, available as an accessory the check valve can be used as a foot valve.
The combination of check valve type 561 or type 562 and strainer is an effective way of protecting a
pump from contamination and consequently from damage, while at the same time, preventing the
pump from unwanted emptying.

The valves are easy to install and practically maintenance-free, thanks to the compact construction
and innovative design details geared to maximum safety, ergonomics and cost efficiency.

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