18
TM
Introduction
Silencers are noise reduction system
devices which are commonly installed in a
regulator as a remedy for noise pollution.
Available Configurations
Type SR:
This silencer is ftted near the regulator
shutter and is highly effcient up to a
theoretical speed of 80 m/s calculated at
the outlet fange.
Higher than this speed, noise may be
generated by the expansion cone, usually
installed downstream of the regulator,
and may require an additional noise
reduction solution.
Type SRII:
The SRII silencer is the next generation
of type SR and is used in case of extreme
service conditions (dirty gas, high
pressure drops, and high gas velocities).
Noise characteristics are very similar to
the standard SR.
Type SRS and SRSII:
The SRS consists of an SR silencer plus a
widened outlet fange in which a second
silencer is ftted.
The SRSII consists of an SRII silencer
plus a widened outlet fange in which a
second silencer is ftted.
In both confgurations the second
silencer has an initial multi‑path section
and a second multi‑stage section.
These silencers are highly effcient under
all operating conditions and are not
limited by the theoretical speed on the
regulator outlet fange.
Type STP:
Usually used downstream of SRS or SRSII
silencers but can also be combined with a
SR silencer.
Overall reduction in noise level is the sum
of the reduction produced by SR/SRII or
SRS/SRSII plus the STP induced reduction.
The type STP silencer consists of one
or more porous channels clad with
soundproofng material.
Sound penetrates inside the soundproof
• Various Noise Reduction
Solutions
• Excellent Cost / Benefit
Ratio
Features
layer and is transformed into heat by fric-
tion of the gas fow.
The silencer is ftted in the pipe and is
secured with two fanges.
Two types of silencers are available:
• STP10 10 dB (A) attenuation,
approximate length of 1 m
• STP10 20 dB (A) attenuation,
approximate length of 2 m
For full details consult the documenta-
tion available on our website:
www.Tartarini-Naturalgas.com
TYPE SRII
TYPE SR
TYPE STP
TYPE SRS AND SRSII
Types SR, SRS, SRII, SRSII, and STP
Silencers for Pressure Regulator Installations