PNEUMATIC MUFFLERS 550

Transcription

1 550 Series

2 PNEUMATIC MUFFLERS Our modern world is a dynamic, fast-moving, noisy place. On the job, workers are exposed to the sounds of industrial equipment, machinery and power tools. All of these loud sounds can contribute to hearing loss. Continuous or repeated exposure to sound levels exceeding 90 decibels will eventually cause permanent hearing loss. The relative loudness and harmfulness of impulse noise is often underestimated. ise generated by the functionning of pneumatic valves is much more dangerous than most people realise. This noise can lead to permanent hearing damage. The brain is incapable of distinguishing the strength of these staccato sounds assaulting the ear, and cannot adjust accordingly. As a result, it is heard as a continuous sound. A half-inch valve controlling a pneumatic cylinder can produce a sound equivalent to a continuous 92 db(a) (at 3 cycles per second). Working near such a sound source for extended periods can cause permanent hearing damage. Fortunately, this type of sound is easily controlled. silencers and mufflers effectively muffle the noise of exhaust air from pneumatic valves. S ADVANTAGES OF REDUCING NOISE Ensures protection of hearing, reduces the number of workers affected by occupational deafness, and lowers the seriousness of hearing loss. Reduces accidents because, sound-warning alarms, equipment failures and conversations are easier to hear and distinguish. Offers an environment where noise is less threatening and stressing thus improving workers productivity. Workers will benefit from a better quality of life and the company will reduce its working expenses. TECHNICAL ASPECTS TO CONSIDER WHEN CHOOSING A SILENCER A silencer installed on air lines must not restrict airflow to a level below the limit specified by the manufacturer. Inspection and maintenance of silencers must be done regularly in order to ensure their efficiency. Impurities, such as rust coming from air lines, could gradually block the silencer and thus reduce its air-exhaust capacity. For increased protection, metal silencers should be installed for air lines with high rates of contaminant accumulation. PERMISSIBLE NOISE EXPOSURE Duration per day, in hours Sound Level db (A) / or less 115 References: OSHA 29 CFR PART (b)(2) CSST L.R.Q., c. S-2.1, r Section XV, 131. NOISE Irritating noise is a form of pollution which degrades quality of life and threatens health Besides jangling nerves, provoking anger and instilling fear, noise also provokes stress and is a serious threat to our hearing Controlling noise is a new challenge that industry must meet today 551

3 S AIR EXHAUST MUFFLERS / FILTERS Air cylinders, Valves, Tools, Hoists, Clutches and other air-operated devices Covers: Cast Aluminium Tie Rods and Lock Nuts: Steel Disseminator: Cellulose fiber/steel Maximum Working Pressure: 125 PSI Working Temperature Range: 40 C to 163 C ise Reduction: Up to 85% Provide complete protection to personnel from injurious air blast noise Air exhaust mufflers meet all requirements for the effective control of air exhaust noise with negligible impairment of operating efficiencies Made with an expansion chamber completely free of obstructions, from which the exhaust air, at reduced velocity, is softly dispersed through the openings of the perforated cylinder wall of the muffler Made entirely of corrosion-resistant material for maintenance-free performance Standard male pipe-thread connections for quick, easy attachment to the air exhaust port Unit should be mounted in a protective position, free from excess vibration May be used as filters for compressed air COUVERCLE BACK COVER TIE TIGE RODS (H.T. Cast Alu.) D ACIER (Steel) DISSEMINATOR FILTRE (Phenol Filter) A NPT LOCK ÉCROU NUTS DISQUE DISC D ACIER (Steel) PORT COUVERCLE COVER (H.T. DE Cast L ORIFICE Alu.) Dimensions (in) A B C Weight kg.700 1/8 44 1/ /4 84 1/ / / / / / / / / / / kg 552 PROBLEM: AIR STREAM EXHAUSTING FROM AIR SYSTEM OUTLETS Components such as air operated valves, air operated rotary actuators, etc. produce very high noise levels when air is released to the atmosphere. These noises come from air turbulence caused by high speed air exhausted underhigh pressure. High noise levels SOLUTION: AIR EXHAUST MUFFLERS DESIGNED FOR EXHAUST PORTS Air exhaust mufflers mounted on compressed air outlets help reduce noise. Reduced noise

4 RELIEF VALVE AIR EXHAUST MUFFLERS / FILTERS Includes all the features of the air exhaust mufflers/filters plus an added relief valve to equalize pressure and optimize performance. Superior design and construction provides a low-cost, effective method of eliminating annoying, distracting noise emitted from air-operated devices. The relief valve equalizes pressure by detecting any outflow deviation, responding to the pressure differential and opening up to compensate for outflow demands. Outstanding ability to eliminate excessive noise for a more pleasant working environment while reducing potential physical injuries caused by extreme air blasts Full-flow design uses interposing sound waves Obstruction-free expansion chamber and porous disseminator (filter element) to completely dissipate harmful air exhaust blast Ideal for reducing Exponentially Perceived ise (EPNdB) S Eliminate excessive noise by dividing the air stream and turning it back on itself. As an air exhaust enters the muffler at high velocity, the muffler redirect it into smaller air streams that rebound off opposing walls of the chamber. With the air streams colliding head-on with each other, the velocity is reduced and the air is dispersed throughout the disseminator surface area. Ideal for applications where uninterrupted continuous outflow is required Cover: Aluminium Tie Rods and lock Nuts: Zinc plated CRS Discharge Valve: Stainless Steel 409 Fiber: Cellulose fibers Maximum Working Pressure: 150 PSI Working Temperature Range: Maximum 150 C less than 30 minutes ise Reduction: Up to 85% Decibel level: 17 at 25 dba (average of 22 dba) B C Discharge valve A Dimensions (in) A B C kg Weight kg.760 1/ / / / / / / /

5 S MUFFLERS / FILTERS These muffler/filters are ideal for silencing compressed air exhausting from such devices as air valves, air motors and impact air tools. In addition, they also prevent valve orifices from being contaminated by outside impurities. Efficient noise reduction Compact and lightweight Low flow restriction Long life Body: Molded Acetal Plastic Element: Acetal Plastic beads Maximum Working Pressure: 116 PSI Working Temperature: 5 C to 80 C ise Reduction: 30dB An integrated baffle plate inside the silencer body provides a controlled-flow condition that circu lates air through a maximum number of sound-absorbing granules before exhausting to the atmosphere. Interior Baffle Body: Molded Acetal Plastic Element: Polyethylene (PE) Maximum Working Pressure: 150 PSI Working Temperature: 5 C to 80 C ise Reduction: 30dB Exhaust Vents Exterior Body Sound Absorbing Granules 554 TECH TIP Mufflers require no maintenance when used under normal working conditions. When used with dirty or oily air, a periodic wash with a petroleum-based solvent is recommended. Mufflers may be installed to direct airflow away from the operator / / / / / / / / / / _06_2016

6 SINTERED BRONZE OR STAINLESS STEEL MUFFLERS / FILTERS Diffuses air and disperses noise from the exhaust ports of valves, cylinders and air tools Compact - particularly suitable where space is limited Easy to install and maintain Tough, cellular, sintered metal structure, secured to metal body, provides an ideal combination of strength and performance May be used as filters for compressed air Prevents metal chips, abrasive grit, dust and other contaminants from entering open exhaust ports and causing premature valve failure S Muffling of air valve noise Exhaust and intake filtering Coalescing of oil mist and/or water vapor Pressure or vacuum equalization Base: Brass or Stainless Steel Element: Sintered Bronze or Sintered Stainless Steel Maximum Working Pressure: 116 PSI Working Temperature: -10 C to 250 C COMPACT BREATHER VENT FILTERS Bronze 10-32: (M) UNF Stainless Steel / / / / / Low profile filter and diffusion unit Supplied with male pipe threads, they can be inserted, with little protrusion, as a flat, integral part of the equipment Compact size Filtration element: 40 micron Used on single acting cylinders or valves to prevent dirt and foreign particles from enter ing ports open to the atmosphere Base: Brass Element: Sintered Porous Bronze Maximum Working Pressure: 1/8, 1/4: 174 PSI 3/8, 1/2, 3/4, 1: 125 PSI Working Temperature Range: 1/8, 1/4: -10 C to 80 C 3/8, 1/2, 3/4, 1: 4 C to 149 C.200 1/ / / / /

7 S SPEED CONTROL MUFFLERS Speed Control Mufflers provide an infinite variation of metering air flow with complete safety at an acceptable sound level on exhaust ports of air valves. Speed control mufflers are recommended for use with 5-ported, dual-exhaust, air-control valves. Speed control mufflers are screwed into the selected air control valve exhaust ports. The cylinder exhaust is throttled by the port flow control adjustable orifice, and back pressure is developed that acts to reduce the cylinder stroke period. Compact size The adjustable tapered metering valve provides a fine adjustment of air flow, for pressure applications and for vacuum relief on vacuum systems External adjustment screw accurately varies orifice opening from closed to full flow as required. Securely locked at the desired setting with a locknut, it cannot be accidentally tampered with, removed, or blown outenlevé ou obturé Easy to adjust knob. screw driver needed Tough, cellular, sintered Bronze structure, secured to bronze body, ensures desired combination of filtering and mufflering with adjustable flow Body: Brass nickel plated Element: Polyethylene Maximum Working Pressure: 145 PSI Working Temperature Range: -10 C to 250 C Base: Bronze Element: Sintered bronze Maximum Working Pressure: 145 PSI Working Temperature Range: 0 C to 149 C Filtration element: 40 micron / / / / / / / / / /

8 HIGH FLOW PNEUMATIC SILENCERS Quick, inexpensive method for reducing work area noise. At the same time, pneumatic silencers protect the inside of the valve from contamination through the exhaust ports. Tough, compact and ideally suited for use where space is limited High flow capacity Minimal back pressure Designed with a precise distribution of peripheral openings, the silencers softly disperse exhaust air uniformly over a 360 pattern to provide effective reduction of air exhaust noise Constructed of a corrosion-resistant metal to withstand shock and continuous heavy-duty use under many conditions S / / / / / / / Ideally suited for use on exhaust ports of valves and air tools In addition to reducing noise levels, they may also be used to keep out foreign material Body: Zinc plated steel Brass screen Maximum Working Pressure: 125 PSI Working Temperature Range: 4 C to 149 C HIGH FLOW PNEUMATIC SILENCERS Quick, inexpensive method for reducing work area noise. At the same time, pneumatic silencers protect the inside of the valve from contamination through the exhaust ports. Tough, compact and ideally suited for use where space is limited High flow capacity Minimal back pressure Designed with a precise distribution of peripheral openings, the silencers softly disperse exhaust air uniformly over a 360 pattern to provide effective reduction of air exhaust noise Constructed of a corrosion-resistant metal to withstand shock and continuous heavy-duty use under many conditions / / / / / Ideally suited for use on exhaust ports of valves and air tools In addition to reducing noise levels, they may also be used to keep out foreign material Body: Aluminium Maximum Working Pressure: 300 PSI Working Temperature Range: 4 C to 149 C 557

9 S PNEUMATIC MUFFLER CABINET Quantity of items per product : items / drawers cabinet 23 L x 14 H x 8.75 W The Push-to-Connect fittings, tubings and mufflers brochure is available to download at.com s complete selection of push-to-connect fittings, tubings and mufflers for pneumatic applications Contains a thread and tubing size full scale chart Push-to-connect fittings and mufflers cabinet selections for easy storage and product identification 558 Visit.com Section «Technical Support» / Push-to-connect fittings and tubing

10 Hose whip: better control and better protection! All sharp bends on hose lines should be avoided. These tend to shorten hose life, increase pressure drop, retard swivel action, increase pump load and raise the temperature of the fluid. A hose whip should be installed to avoid strain on hose and coupler assembly. Protection Extends the life of the hose and coupler by acting as a shock absorder and protecting it against tool vibration Control Allows the operator an easier and wider range of motion while increasing the worker productivity Ergonomic Reduces worker fatigue when using tools with heavy vibrations Available with EASYflex PREMIUM or TOPLEX hoses See Series 62 page 387 for the complete selection Large choice of hose length and diameter Hose whip kits with quick coupler and plug available with EASYflex PREMIUM hose / See Series 62 for more details 30º 01_06_ C C C C 559