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Product Description

The new Sound Shield technology from Gast Manufacturing is the only technology of its kind. It significantly reduces sound levels up to a 25% dB(A) drop and a 40% Sone decrease in perceived loudness at open flow compared to a standard Gast vacuum pump or air compressor without affecting performance. Installation is simple whether on the manufacturing line or as a retrofit at your product location. Sound Shield is a convenient, integrated, one-source solution — eliminating the time, cost and complexity of other less-effective sound dampening products such as foam insulation, mufflers, covers or cabinets. It’s a sound investment for your business — returning the benefits of a quieter, more pleasant working environment that increases user comfort and productivity.

Gast SSP-86R1-02 fits all Gast rocking piston 86R single cylinder models with a biased relief valve, used for pressure.

See SSP-86R1-01 for all Gast rocking piston 86R single cylinder models without a biased relief valve, used for pressure.

How do you know if your 86R single uses a biased relief valve?  If the Gast part number includes an “R”, the pump was installed with a biased relief valve. Example: 86R126-101BR-N170X. Still not sure? Email or call +1 269-934-1130 and provide the Gast part number.

  • The AS321 Silencer(s) should be replaced at 2000 hours or 2 years, whichever comes first, to prevent air restrictions to keep your compressor or pump running at peak performance.  Silencer SKU:AS321
  • It is recommended that if the upgrade is being performed on a pump with more than 1000 hours or 1 year of use that a Gast preventative maintenance kit is also used.
  • Kit includes: Installation guide, (1) attenuation chamber with internal silencer installed, (1) valve plate with (1) custom O-ring and (1) circular O-ring, and (3) port plugs.


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