In case of leaks or break of the elastic element the operator is protected by a stainless steel safety cell solid front and by the blow-out back.They are usually used in the petrochemical industry; they are built to resist to the most severe conditions created by H2S and by the environment and for those fluids. The TIG welding between the safety cell and the process socket strengthens the instrument. The advantages of filling the case of the instrument with a dampening fluid are: reduced pointer fluctuation, reduced wear of rotating parts of the movement when pulsant vibrations and pulsations occur. Moreover condensation and corrosive atmospheres which could damage the internal parts.
– Solid-front pressure gauge, NACE MR 01.75, turret case diameter 125 mm
– Complete of diaphragm seal
– Case and blow out disk in strengthened polyammides, fiber glass, UV rays stabilized
– Stainless steel movement, bourdon tube in st. st. AISI316L, wetted parts in Hastelloy C276
– Fillable or filled execution
– Bottom process connection
– Tempered glass window
– Accuracy class ±1% fsv
– Protection degree IP65 for fillable execution, IP67 filled
– Leak test: Helium test leak search
– Instruments designed for petrochemical industry, built to resist to the most severe conditions created by H₂S or aggressive environment or process fluid conditions
– The safety construction consists of a solid separating wall placed between the scale and the elastic element, and a blow out back which is released from the case whenever an internal pressure, due to leak, is created or the elastic element is broken