part number:	R490-08
connection thread:	G1
connection:	G1
pressure range [bar]:	0...10
flow rate air [Nl/min]:	14100
Kv [m³/h]:	9

The volume booster amplifies the volume at a 1 to 1 ratio of
pilot pressure to outlet pressure.
The booster is a rugged precision instrument with key features
providing reliable, efficient and stable operation. Very low
deadband between the operation of the supply valve and exhaust
valve providing provides excellent pressure control. High
capacity exhaust valve provides efficient dynamic reverse flow
characteristics. Pressure balanced supply valve prevents changes
in control characteristics when supply pressure changes. Damped
diaphragm control chamber provides stable operation and protects
valves from damaging oscillation under high flow conditions.

Media: compressed air or non-corrosive gases

Supply_pressure: max. 17 bar
Ratio: 1:1
Pilot_pressure: max. 10 bar; pilot port G1/4
Accuracy: at supply pressure variation of 7 bar = < 7 mbar pressure deviation
response_sensitivity: 2.5 mbar
Air_consumption: max. 3 l/min subject to outlet pressure
Relieving_function: relieving
Relief_capacity: 2800 l/min at 0.35 bar overpressure above setpoint of 1.5 bar
Gauge_port: 1/4˝NPT on both sides of the body, screw plugs supplied
Mounting_position: any

Temperature_range: -40 °C to 93 °C / -40 °F to 199 °F

Body: aluminium die-cast
Diaphragm: NBR/Buna-N on Polyester, optionally FKM
Inner_valve: zinc-plated steel, optionally stainless steel

• Delivery of spare parts and industrial equipment throughout the USA by Fedex transport company.
• Flexible payment system accepting bank transfers, MasterCard, VISA, PayPall, App Pay, Google Pay.
• Directly from stock and on order.