Bronze pneumatic exhaust silencer — conical, adjustable and flat
TECTUL · Dispatch across Colombia · Exports to Central & South America
Threaded silencer installed on the exhaust port of a pneumatic valve, cylinder or solenoid valve, to attenuate the noise of air released to atmosphere via an internal porous or sintered element. The TECTUL bronze catalog covers the conical version (standard profile), the adjustable one (allows regulating exhaust flow with a screw, useful for controlling an actuator's speed) and the flat one (low profile, for tight installations, published under the commercial name "Flat Pneumatic Silencer").
Important: Before using these data in engineering, design or installation decisions on systems exposed to mechanical, pressure, rupture, fatigue, impact or water-hammer risk, it is essential to read the technical notice and limitation of liability at the end of this sheet.
Conical (VT-59170) · adjustable (VT-59204) · flat (VT-59202) · sold by the unit
1. Technical specifications
| Conical (VT-59170) | Standard profile; fixed porous/sintered silencing element |
| Adjustable (VT-59204) | Incorporates a screw or collar to regulate exhaust flow, thereby controlling the upstream actuator's speed |
| Flat (VT-59202) | Low profile, for tight installations |
| Material (all) | Bronze |
| Connection | Male thread, to install directly on the valve, cylinder or solenoid's exhaust port |
| Dimensions and thread range | Confirmed on quotation — no manufacturer dimensional sheet available |
2. Frequently asked questions
Which version regulates a cylinder's speed?
The adjustable one: by restricting exhaust flow with the screw, it indirectly controls the connected actuator's advance/return speed.
Does the flat version lose noise-attenuation capacity compared to the conical one?
Not specified in the available manufacturer sheet; confirm each version's attenuation level (dB) with the supplier if it is a critical requirement.
3. Application notes
Feasibility
Suitable for reducing exhaust noise on pneumatic valves, cylinders and solenoid valves. Use the adjustable version when you also need to regulate the actuator's speed.
Installation
Thread directly onto the exhaust port, sealing with PTFE tape if the equipment manufacturer recommends it. Do not obstruct the silencer with paint, dust or dirt: it reduces exhaust capacity and can affect actuator performance.
Design
Confirm the available thread range and, if critical, the noise attenuation level (dB) with the supplier before specifying.
4. Technical notice and limitation of liability
The pressures, dimensions, weights and other characteristics in this sheet are theoretical calculation values obtained from nominal properties published in the standards cited (ASME B36.10-2022, ASME B31.3-2024, ASTM A106/A106M-19a, ASTM A53/A53M-24, API Spec 5L 46th ed.). They guide selection; they are not a certificate of conformity for any given lot.
The actual behavior of each lot varies with manufacturing — wall tolerance (up to −12.5%), out-of-roundness, residual stresses — and with the raw material — chemical composition within the ranges the standard allows, heat-to-heat differences. To certify a lot, the tests defined by its product standard are required: tensile test, flattening test and hydrostatic test, documented in the manufacturer's mill test certificate (MTC), which TECTUL supplies upon request; testing of the lot in an independent laboratory can also be arranged.
These values must not be used as the sole criterion in critical or safety applications, or wherever failure of the line may compromise people, property or the environment: in such cases the design belongs to the project's responsible engineer under the applicable code (ASME B31.3, B31.1 or the one governing the installation), with the design temperature, corrosion allowance and load cases of the actual service. Before deciding with these data, consult our technical team.
Sources
- Páginas de producto TECTUL "Silenciador Cónico Bronce" (VT-59170), "Silenciador Neumático Ajustable" (VT-59204) y "Silenciador Neumático Plano Bronce" (VT-59202), previews/conduccion-de-fluidos/racores-y-acoples/: función y variantes
This data sheet is the property of TECTUL, part of the Industrias IMR group. Reproduction without attribution is prohibited. Original document and updates: tectul.com/en/conduccion-de-fluidos/racores-y-acoples/ficha-tecnica-silenciador-conico-bronce.