Bieccentric Butterfly Valve with Counterweight

MBC

The MBC model FCA butterfly valve is mainly used in strained lines in hydraulic power stations or as a charge or discharge valve and for security purposes in turbines as a shut-off element. It consists of a circular flanged body with a butterfly or disc as a shutting-off element.

The disc is provided with a seal which is fixed to it by a ring in stainless steel material. It is a valve with double eccentricity in the disc. Due to this eccentricity, the friction between the seal and the seat is low and the disc presents a tendency to close the valve.

The most usual device to operate this valve is by means of a hydraulic actuator to open it and an external mechanical drive to close it. The mechanical operation is obtained by a counterweight that guarantees the shut-off in a case of emergency.

The shut-off is also possible with the hydraulic actuator. With the installation of a by-pass, the pressure may be balanced upstream and downstream in order to ease the opening and closing operations. This by-pass consists of a pipe and two small valves: an automatic valve for control and a manual valve for maintenance. Optionally telescopic pipes are installed to help disassemble the valve.

Login to download catalogue
Design Standard

AWWA / DIN

Pressure

PN6 / PN10 / PN16 / PN25 / PN40

Sizes

DN400/16'' to DN2500/100''

Sectors Hydro Power Plants and Dams Power

Contact us and we will help you with any special application for this valve

Any question about this valve?

Please, fill the fields below to send us an information request

I accept the privacy policy.

Responsible: Aplicaciones para control de fluidos, S.L. - NIF: B20911558 Registered office: Pol. Ind. Apatta Erreka - E3 - Nave 8, 20.400 Ibarra (Gipuzkoa)

“On behalf of the company we treat the information you provide us with the aim of sending advertising related to our products and services by any means (Postal, email or telephone) and invite you to events organized by the company. The data provided will be kept while you don’t request the cessation of the activity. The data will not be transferred to third parties except in cases where there is a legal obligation. You have the right to obtain confirmation whether in Aplicaciones para control de fluidos, S.L. we are treating your personal data, so you have the right to access to your personal data, rectify the inaccurate data or request its deletion when the data is no longer necessary for the purposes that were collected”