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Valve, Quick Exhaust (Coats 8181191)

Valve, Quick Exhaust (Coats 8181191)

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  • $60.00

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Ensure Precise Pneumatic System Control

The Valve, Quick Exhaust is a heavy-duty pneumatic control valve designed to reliably manage, exhaust, or vent compressed air inside professional tire changers.

Sluggish bead loosener stroke or slow clamping is often caused by micro-leaks or worn seals inside safety and exhaust valves. Replacing this valve restores full pressure to your pneumatic cylinders.

đź“‹ Factory Service Bulletin Guidance:

Update Date: November 2008
Subject: Air Motor Exhaust Valves

Due to a manufacturing issue by our current supplier, we have been experiencing issues with P/N 8181191 exhaust valves. The symptom is a loud “barking” sound. Under deviation, beginning with tire changer serial number 0811109310, we have temporarily begun using a different valve on new units. It requires an extra fitting to connect to the elbow going to the muffler. Required Fitting Temporary Valve For service, the part number for the valve will not change. What you will receive under deviation for the same part number will be the temporary valve and the fitting. This temporary valve and fitting will be shipping for service on Monday, November 10. We will return to the standard valve as soon as the issues with it have been corrected.

Update Date: January 2009
Subject: Air Motor Exhaust Valves 2

Beginning with Serial Number 0901102485 we have returned to using our original design Deltrol exhaust valves and fittings. These Deltrol valves have been extensively tested and are from our original supplier. The images below show the original configuration of the parts as per the bill of materials. It will take two p/n 8181207 nipples and two p/n 8181191 valves to retrofit a machine that has the Comozzi valves and fittings described in bulletin.. 8181191 8181203 8181207 ORIGINAL DELTROL VALVE 8181195

Update Date: September 2009
Subject: Air Motor Exhaust Valves 3

The new valve design eliminates the need for the adapters and unions required by the old style valve since the fittings have become a part of the new valve body. On air motor equipped Rim Clamp tire changers (EXCEPT APX models), we have started using a new style exhaust valve. The first production unit was built on September 15th and is S/N 0909101339. NOTE: Replacing the old style valve with the new will eliminate some parts. Replacing the new style valve with the old will mean adding some parts. BE SURE YOU HAVE THE PARTS YOU NEED PRIOR TO SERVICE. New valve connects directly to the air motor. The hose and muffler connect directly to the valve.

Machine Location:

This valve is located on the main air regulator filter-lubricator (FRL) unit, bead breaker cylinder, or foot pedal valve stack.

Key Features & Specifications

  • Pressure Regulation: Rated for continuous operational shop pressures of 110 – 175 PSI.
  • Heavy-Duty Construction: Constructed from brass, anodized aluminum, or premium polymers to prevent internal corrosion.
  • Direct Dimensional Match: Aligns perfectly with existing air lines and mounting brackets for quick installation.

Complete Machine Compatibility

This universal replacement part is documented and verified to fit the following Coats® equipment models:

  • Coats 5030 A/E Tire Changer
  • Coats 5035 A/E Tire Changer
  • Coats 5040 A/E Tire Changer
  • Coats 50Xx Series Tire Changer
  • Coats 6050 A/E/Ax/Ex Tire Changer
  • Coats 6060 Ax/Ex Tire Changer
  • Coats 6065 A/E/Ax/Ex Tire Changer
  • Coats RC-100 Tire Changer

Frequently Bought Together / Related Parts

These drawing-adjacent parts connect directly next to this part on your parts breakdown and assembly drawings:

🔧 Pro Installer Tip:

Observe the arrow on the valve body to ensure correct directional flow. Verify your machine's air lines are depressurized before removing the old valve.

Alternative / Cross-Reference Part Numbers: SVI BW-1211-91 | Coats 8181191 | Distributor AM8181191

AMMCO and COATS are registered trademarks of The Coats Company. AEPN Inc. is not associated in any way with The Coats Company, Inc. Any names, symbols, numbers, and descriptions are used for reference purposes only. It is not implied that any part listed is the product of these manufacturers.

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