AR22287 | VR35 IDR Unloader Valve, 4000 PSI

AR22287 VR35 IDR Unloader | 4000 PSI Dump Regulator with Chemical Injector

The AR22287 is the Annovi Reverberi VR35 IDR unloader, rated to 4,000 PSI, with a built-in chemical injector. It controls pump pressure like any unloader, sending flow to bypass when the trigger closes. What sets the IDR apart is the dump: it also releases the pressure left in the hose, so the line is not left holding full pressure between passes.

That means less strain on hoses, couplers and fittings, an easier restart, and a safer handoff between operators. It is the unloader AR fits to its VR35 IDR pump packages, including the RKV4G37DVR35IDR.

Will It Fit My Machine?

• Pressure: for pumps rated up to 4,000 PSI.
• Bypass line: the VR35 has an external bypass port. Run a bypass line back to the tank or pump inlet.
• Detergent: the injector draws chemical at low pressure. Use a low-pressure soap nozzle to pull detergent.
• Replacing a VR35: match it to the part number on your old unloader. The plain VR35 (AR21669) has no dump function.

Not sure it fits? Text a specialist at (505) 226-6061 with your pump model and a photo of the old unloader.

Good to Know

• Set the working pressure with a gauge at the pump outlet.
• Keep a thermal relief valve on the pump to protect it during long bypass periods.
• Flush the injector with clean water after each chemical job to prevent residue and blockages.

AR22287 Specifications

• Model: AR22287 (VR35 IDR)
• Max Pressure: 4,000 PSI
• Function: Unloader with pressure dump and chemical injector
• Bypass: External port
• Weight: 2 lbs
• Brand: Annovi Reverberi

Shipping: Usually ships via UPS in 1 to 3 days.