Product Overview

The Tartarini BM6X Series is a wafer type axial flow slam-shut valve that protects gas regulating stations and transmission or distribution lines. The off-centre butterfly disc is mounted eccentrically, so the face-to-face length stays short and the valve fits existing stations that have no shut-off device. The valve is powered by the line gas itself and needs no external supply; once tripped, it can only be reset by hand.

Key Features

• Wafer type axial flow body, DN 80 to DN 300, CL150, CL300 and CL600 flanges
• Maximum inlet pressure 100 bar / 1450 psig, line gas operated, no external supply
• Overpressure trip 0.03-80 bar and underpressure trip 0.01-80 bar, both adjustable
• Accuracy up to +/-1% with response time below one second
• Manual reset by turning the reset shaft, with emergency push-button and by-pass

Typical Applications

City gate and district regulating stations, industrial gas supply skids, compressor station protection, and natural gas, LPG, nitrogen, carbon dioxide or hydrogen blending lines where an independent safety cut-off is required.

Selection Guide

Confirm the line size (DN 80 to DN 300), flange class (CL150, CL300 or CL600), overpressure and underpressure set points, and the operating temperature. A low temperature version is available for cold climates, and a sour gas construction can be specified for wet H2S service.