Pressure Relief Valve Assembly CM021021

Pressure Relief Valve Assembly (CM021021)

The CM021021 pressure relief valve assembly is the spring-loaded bypass that protects the vacuum motor when the airflow becomes restricted. When the bag fills or the nozzle, hose or wand becomes blocked, the valve opens to admit relief air, preventing the motor from overheating under a no-airflow load. This part is the current genuine assembly and supersedes the earlier 39315.

A relief valve that is stuck open bleeds off suction and weakens cleaning, while one that is stuck closed removes the motor’s protection against blockage — both are reasons to replace a worn valve with the genuine CM021021. Fitting the correct assembly restores the designed bypass pressure so the motor is protected and full suction returns once any restriction is cleared. The same valve is used across the CleanMax Pro-Series, the Tornado CK 14/1 range and Powr-Flite’s Borelli Dual Pro, so one genuine part number serves all three brands.

Compatible Models

This genuine Tacony component is engineered to fit the following machines:

CleanMax

• CleanMax CMP-3N
• CleanMax CMP-3T
• CleanMax CMP-3QD
• CleanMax CMPS-QDZ

Tornado

• Tornado CK 14/1 (model 98145)
• Tornado CK 14/1 Pro (model 98147)
• Tornado CK 14/2 (model 98152)
• Tornado CK 14/1 QD (model 98174)

Powr-Flite

• Powr-Flite Borelli Dual Pro (PV160-W14-U)

Fitment is confirmed against Tacony PartSmart Where-Used records. The CM021021 supersedes the older 39315 part number. If your model is not listed, contact us before ordering.

Frequently Asked Questions

What does the CM021021 pressure relief valve do?

It is a spring-loaded bypass that opens to admit relief air when the bag is full or the airway is blocked, protecting the motor from overheating under a no-airflow condition.

Does the CM021021 replace part number 39315?

Yes. The CM021021 is the current genuine assembly and supersedes the earlier 39315 pressure relief valve for these machines.

Which machines use the CM021021 relief valve?

It fits CleanMax CMP-3N, CMP-3T, CMP-3QD and CMPS-QDZ, the Tornado CK 14/1 family (models 98145, 98147, 98152 and 98174), and the Powr-Flite Borelli Dual Pro.

Order the genuine CM021021 pressure relief valve assembly today, or contact Twin City Vacuum if you need help confirming fitment for your machine.