330980-50-05 Packing with low runaway emissions is a key requirement for high performance valves in chemical or petrochemical industry applications. Through the application of a variety of special materials and professional engineering design, it is possible to achieve near zero fugitive emissions while extending service life.

If the appropriate filler is selected in the design, near-zero leakage performance can be achieved and maintained, and the service life is longer. Easy to adjust packing adjustment nut to further extend the valve packing life.

Valve design

In addition to low leakage certification to ISO 15848-1 BH CO3, more design features should be considered when selecting valves:

Standard face to face valve dimensions in line with EN 558 Series 20 and Series 25.

The extended area between the packing adjustment area and the va330980-50-05 lve body insulates the pipe and valve while still allowing the packing to be maintained online if needed.

The integral cast ISO 5211 top flange connection can facilitate the installation of equally matched actuators, avoiding the need to purchase additional brackets or couplings.

Solid stem and valve plate connection form, while reducing the retention area, so that the valve to maintain high flow capacity.

Anti-blowout stem design according to EN 12569.

The lug connection mode can be applied to the end of the pipeline.

High performance butterfly valves with these features ensure high flow ch330980-50-05 aracteristics in a wide range of applications, as well as a bi-directional seal that is not affected by system pressure, allowing the valve to be installed in the pipeline without flow restrictions.