Av-Tek – VRX Plunger Control Valve

Main Valve Features

Annular Flow Design

The Av-Tek® VRX Plunger valve opens and closes in an annular flow pattern, allowing precise control throughout the entire stroke of the valve. The linear flow of the media is directed around the inner core of the valve body without interruption. From the closed position, the piston retracts into the body of the valve and flow increases. As the valve closes the flow path and the piston move in the same direction eliminating transient waves, or water hammer.

Body Styles and Sizes

6” to 48” Class 150B ANSI Class 125 raised face flanged.

Compact and Robust

The VRX Plunger valve has a much shorter lay length than a traditional globe style control valve, but quality is not lost due to the ASTM A536 one piece ductile iron body and internal stainless steel components. The VRX is suitable for up to 250 psi CWP. *Higher pressure ratings available upon request

Bronze Welded Guide Rails

The bronze welded body rail is applied to the Ductile Iron valve body by means of a machine welded overlay which is micro finished and polished. This results in very low friction when the plunger opens and closes. The welding process eliminates the possibility of the rails delaminating, or the need for fasteners, which can cause misalignment or jamming of the piston as the valve operates.

Quarter Turn Valve

The Av-Tek® VRX Plunger is a Quarter turn valve to ensure quick opening and closing when needed. Each valve comes standard with a quarter turn AWWA Self Locking Worm Gear, and can be adapted with an electric actuator for automatic control.

Certified Zero Leakage

Each VRX Plunger valve is tested in accordance with EN 12266-1. Beyond industry standard testing, Av-Tek® conducts additional testing and ensures each valve includes a leak test report and heat trace numbers of the valve components with delivery.

Dry Disc Hub

Our advanced modern dry disc hub and shaft design is achieved through multiple O-Ring seals on the crank shaft. This prevents pressurized system water and outside water from entering the dry shaft, as well as provides ancillary vacuum protection.

• Drinking Water Safe
• NSF 61/372 Certified for use in Potable Water Systems

Ease of Maintenance

The VRX Plunger valve requires zero to minimal maintenance. The rubber seal is preserved from wear and is out of the flow stream of the media. The bearing cover allows the user to remove the worm gear without dewatering the pipeline. In the rare event that the rubber sealing ring ever required replacing, it can be replaced in the field, with common tools, and without the need of a specialized technician.

Each VRX Plunger valve is tested in accordance with EN 12266-1. Beyond industry standard testing, Av-Tek® conducts additional testing and ensures each valve includes a leak test report and heat trace numbers of the valve components with delivery.