Rückschlagventil, insbesondere Rauch- Und/oder Brand-Rückschlagventil

Details

Veröffentlichungs-Nr.

EP4717954

Anmeldetag

25. September 2025

Veröffentlichung

1. April 2026

Rechtsraum

EP

IPC

F16K15/03, F24F11/35, A62C2/14(BUTI RES S R L et al.)(FLINDALL JOHN et al.)

Abstract

The non-return valve has blades (2) in the closed position in two divergent half-planes (4). The intersection of the first half-plane (4) and the second half-plane (4) is identical with or parallel to the axis of the blades (2) or to the axes of the blades (2), while at least part of the counterweight (6) is located in the half-space opposite the half-space with the blade (2). The angle formed between the first half-plane (4) and the second half-plane (4) from the gas inlet side is 180° + 2α, where α is in the range up to 45°, preferably 1° to 30°, especially preferably 11°. The blades (2) in the closed position abut with their edges to the contact strip (7), which is fixedly attached to the edge of the body (1), while lying in the half-planes (4). The blade (2) is balanced to the axis of the shaft (3), while the counterweight (6) and the arm (5) can be formed in one piece, preferably from a steel wire with a circular cross-section. The partition (8) can have uneven edges, preferably it has wavy and/or sawtooth-like and/or sinusoidal edges.

Anmelder

Firma

Systemair Production a.s.

Land

🇸🇰 Slowakei

Fachgebiete