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Welcome to purchase low price double ferrule high-pressure proportional relief valves made in China or try the customized service with Naco Fluid Equipment, which has been focused on this field since 2008. We are equipped with a professional and productive factory which can offer you cheap price. Now, take action to get free sample of double ferrule high-pressure proportional relief valves with us.

Proportional Relief Valves

High-Pressure Valves (RA Series)

¡ò Service up to 6000 psig (413 bar)

¡ò 7 color-coded springs available for a wide range of set pressures

¡ò Valves available factory-set to a special set pressure

¡ò 1/4 in. and 6 and 8 mm end connections-RA3 series

¡ò 1/2 in. and 12 mm end connections-RA4 series

Set Pressure and Resealing Pressure

¡ò Set pressure is the upstream pressure at which the first indication of flow occurs. Set pressure of each valve after initial relief is repeatable within

±3.0 psig (0.20 bar) or ±5% (whichever is greater) of the initial set pressure at 60 to 80°F (15 to 26°C)

±6.0 psig (0.40 bar) or ±20% (whichever is greater) of the initial set pressure below 60°F (15°C) and above 80°F (26°C).

¡ò Resealing pressure is the upstream pressure at which there is no indication of flow. Resealing pressure is

always lower than set pressure.

Dimensions (RA4 Series)

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