Butterfly Valve-Three Eccentricity Metal Seal

Specifications

Size: DN150 ~ DN3500

Nominal pressure: PN2.5 ~ PN25

Applicable media: water, steam, gas, oil, etc.

Medium temperature: ≤ 600℃

Full-state minimum flow resistance coefficient: 0.1

The installation of forms: horizontal, vertical

Connection mode: flange connection, connect to the folder, welding Body Material: Steel C, Cr-Mo steel I, chrome-nickel steel P, Cr-Ni-Mo-Ti Steel R

Control mode: electric, pneumatic, hydraulic, worm gear drive, manual

This series of three eccentricity metal butterfly valve seals are my German MAK company introduced a new generation of technology development Butterfly Products. With the traditional soft-sealed, metal sealed butterfly valve compared to the product structure, it mainly has the following characteristics:

1, the Vice-sealed products using three-dimensional eccentricity metal seal structure, in the traditional double eccentric structure on basic configuration unique angle eccentric design, full use of the cam effect, so that sealed the Deputy achieve instant contact and instantaneous detachment, eliminating the macroscopic friction and card squeeze , wear small, hoist torque small, sealed high precision, high temperature, we use long life.

2, multiple compensation functions: each single-layer metal seals flexible compensation function that can play a role in the elimination of space. Ring mounted on the valve sealing bed can slip in a certain range, plus the role of torque, the elastic sealing ring and metal of the contact angle between the valve seat have a minor effect Lease block, and automatically, make position compensation. The seal structure to seal the back of the introduction of pressure medium, with medium pressure increased, the ring outer diameter and also with the increase, so that the more strict sealing, the formation of stress compensation.

3, stacked composite conical metal seal sealed by a few layers, sealing access to the site is a conical surface, rather than a line, sealed after the failure of the first layer, as long as a little shift that may have several layers from sealing role, overcome Seal Line Office in a sealed after wear, is no longer sealed and the leakage of disadvantage. Labyrinth seal ring means compensation within the multi-layer composition, in contact with the seal seat to form a maze in order to play a labyrinth sealing effect.

4, sealing adjustable structure: the valve at the long-term use, if the sealing performance drop, adjustable ring around the valve seat, you can restore the original sealing performance significantly improve valve life.