Vacuum Relief Valves, Vacuum Flow Valves for Large Blower Type Vacuum Pumps

Vacuum Relief Valves

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 (for lower levels, as low as 2 in. of Hg, a larger size VRV must be used)
  • 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.

Specifications for Easy Adjustable VRV EA Types

3D Content CentralProduct Photo
(Click to
Enlarge)

Part
Number

Use with Large Variety of Vacuum Pumps
Including Our Model Numbers

Overall Height
in.
(mm)
Diameter
in.
(mm)

Thread
Size

Vacuum Gauges Available
VRV-1-EA
Easy Externally
Adjustable Type

VB9HV-S

VB3HF, VB7HV,
VB9HV
3.50 – 4.38
(88.9 – 111.3)
2.00
(50.8)

1″ NPT
Male

ANVER Vacuum Gauge Model # VG200-14PBM
VRV-112-EA
Easy Externally
Adjustable Type
VB9HV-S

VB3HF, VB4HF,
VB7HV, VB8HF,
VB9HV

3.50 – 4.38
(88.9 – 111.3)
2.50
(63.5)

1½” NPT
Male

ANVER Vacuum Gauge Model # VG200-14PBM

VRV-2-EA
Easy Externally
Adjustable Type

VB9HV-S

VB4HF,
VB7HV, VB8HF,
VB9HV

3.50 – 4.38
(88.9 – 111.3)
3.00
(76.2)

2″ NPT
Male

ANVER Vacuum Gauge Model # VG200-14PBM

 

Vacuum Relief Valve Add-On Kit for Regenerative Pumps

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.

 

 Specifications for Vacuum Relief Valve Add-on Kits

Product
Photo

Part No.

Description

VRV-112-KIT-4

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

VRV-112-KIT-7/9

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

VRV-112-KIT-7-SDE

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

VRV-112-KIT-9-SDE

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

VRV-2-KIT-8/11

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

VRV-2-KIT-8-SDE

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

13600106 A

Vacuum Gauges

Recommended Vacuum Gauges
for These Valves

Vacuum Hose Connection Accessories

Connection Accessories
for Vacuum Hose


Go to Vacuum System Accessories

Go to VT System Replacement Parts