ANVER Vacuum Material Handling

ANVER easy adjustable Vacuum Relief Valves (VRV) are designed to protect vacuum pumps from internal damage due to a dead-head situation. VRVs allow a small amount of air into the vacuum pump, which cools the temperature and, in doing so, prevents overheating and possible damage. VRVs can be preset to a preferred vacuum level in order to provide the proper amount of air to cool and protect your vacuum pump. You can set a predetermined vacuum level using a vacuum gauge in the system. The VRV can be mounted anywhere in the system manifold. Consider mounting the VRV close to the vacuum pump and gauge to make adjustments easily as needed. ANVER recommends purchasing vacuum gauges shown in specifications below. VRVs are an inexpensive way to insure your expensive regenerative vacuum pump.

Features

• Vibration resistant – holds  settings
• Spring-loaded metal shaft and sealing cup
• Anodized aluminum construction for longevity and ruggedness
• Adjustable locking ring and internal bronze bearing for wear resistance
• Operational range from 6 in. to 21 in. of Hg
• Easy access from the top to reset valve without removing it from the manifold

Applications

Recommended for most applications. VRVs are ideal for vacuum handling of non-porous loads, in addition to many other applications that may cause a vacuum pump to dead-head or burnout.

Part
Number

Use with Large Variety of Vacuum Pumps
Including Our Model Numbers

Thread
Size

1″ NPT
Male

VB3HF, VB4HF,
VB7HV, VB8HF,
VB9HV

1½” NPT
Male

VRV-2-EA
Easy Externally
Adjustable Type

VB4HF,
VB7HV, VB8HF,
VB9HV

2″ NPT
Male

Valve Settings: In most cases, initial settings for the valve should be set slightly below the pump’s maximum vacuum level. Application types and user preferences determine what the maximum level should be. Load capacity must be adjusted accordingly, based on achieved vacuum at the vacuum attachment point.

Need more Flow? If you need to get to a lower vacuum level or flow rate than the operational range from 6 in. to 21 in. of Hg, you can use a larger size VRV or double them up (shown below).  Using a vacuum gauge and flow meter is recommended to set the valves in critical applications.

Part No.

Description

Vacuum Relief Valve Add-On Kit for VB4HF-S Vacuum Station and used with -4-SDE Sound Deadening Enclosure, 1½” NPT

Vacuum Relief Valve Add-On Kit for VB7HV and VB9HV Vacuum Stations, 1½” NPT

Vacuum Relief Valve Add-On Kit for VB7HV Vacuum Station, 1½” NPT

Vacuum Relief Valve Add-On Kit for VB9HV Vacuum Station, 1½” NPT

Vacuum Relief Valve Add-On Kit for VB8HF or VB11HV Vacuum Station, 2″ NPT

Vacuum Relief Valve Add-On Kit for VB8HF Vacuum Station, 2″ NPT