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GVB/GVB12 Series Snap-Acting Relays

GVB/GVB12 Series Snap-Acting Relays
Product Description

Designed for pneumatic systems, Conoflow Series GVB Snap-Acting Relays change ports to switch or lock in secondary air source when the main supply pressure fails below a predetermined set point. In the event of supply or pilot pressure failure, the positive action relay with one common and two inlet or outlet ports will automatically:

  • Switch from main to auxiliary supply pressure
  • Lock an actuator in its last position
  • Extend or retract an actuator stem
  • Divert flow or pressure from one device to another
The Series GVB Snap-Acting Relays have an integral pilot which eliminates the extra piping and connections required with other lock-up valves. Compact and lightweight, the relays are easily piped and mounted.

Datasheets

Specifications

Set Pressure:  25 to 85 psi (172 to 586 kPa)
Maximum Relay Valve Pressure:  150 psi (1034 kPa)
Maximum Signal Port Pressure:  100 psi (690 kPa)
Relay Valve Port Diameter:  3/16” (4.76 mm) (Cv=0.38)
Max Pilot Air Consumption: 3.1 scfh (1.5 lpm) when operating in “A” to “B” circuit mode. 
Temperature Range:  0 to 150 °F (-18 to 66 °C)

Connections:
  • Sensing Port: 1/8” NPT
  • All Others:1/4” NPT
Weight:
  • GVB11: 1-3/4 lbs. (0.79 Kg)
  • GVB12: 2-3/4 lbs. (1.25 Kg)
NOTE: 1. Supply (Pilot) pressure must be at least 20% greater than set pressure

Materials of Construction

PILOT */**
Body and Bonnet: Aluminum
Inner Valve: Brass
Range Spring: Steel
Diaphragm: Buna “N”

VALVE */**
Body: Brass
Spool: 303 Stainless Steel
Diaphragm: Buna “N”
Bottom Cap: Aluminum

*Stainless Steel Construction available, consult the factory.
**Viton and Silicone Elastomers available, consult the factory.

GVB/GVB12 Series Snap-Acting Relays

GVB/GVB12 Series Snap-Acting Relays

Product Description

Designed for pneumatic systems, Conoflow Series GVB Snap-Acting Relays change ports to switch or lock in secondary air source when the main supply pressure fails below a predetermined set point. In the event of supply or pilot pressure failure, the positive action relay with one common and two inlet or outlet ports will automatically:

  • Switch from main to auxiliary supply pressure
  • Lock an actuator in its last position
  • Extend or retract an actuator stem
  • Divert flow or pressure from one device to another
The Series GVB Snap-Acting Relays have an integral pilot which eliminates the extra piping and connections required with other lock-up valves. Compact and lightweight, the relays are easily piped and mounted.

Datasheets
Specifications
Set Pressure:  25 to 85 psi (172 to 586 kPa)
Maximum Relay Valve Pressure:  150 psi (1034 kPa)
Maximum Signal Port Pressure:  100 psi (690 kPa)
Relay Valve Port Diameter:  3/16” (4.76 mm) (Cv=0.38)
Max Pilot Air Consumption: 3.1 scfh (1.5 lpm) when operating in “A” to “B” circuit mode. 
Temperature Range:  0 to 150 °F (-18 to 66 °C)

Connections:
  • Sensing Port: 1/8” NPT
  • All Others:1/4” NPT
Weight:
  • GVB11: 1-3/4 lbs. (0.79 Kg)
  • GVB12: 2-3/4 lbs. (1.25 Kg)
NOTE: 1. Supply (Pilot) pressure must be at least 20% greater than set pressure
Materials of Construction
PILOT */**
Body and Bonnet: Aluminum
Inner Valve: Brass
Range Spring: Steel
Diaphragm: Buna “N”

VALVE */**
Body: Brass
Spool: 303 Stainless Steel
Diaphragm: Buna “N”
Bottom Cap: Aluminum

*Stainless Steel Construction available, consult the factory.
**Viton and Silicone Elastomers available, consult the factory.