Unloader valve · Brass 7691

• Flow9.5–30 l/min
• Pressure range70–280 bar
• Inlet connection3/8" NPT(F)

Brass pressure-sensitive regulating unloader for single pump and single gun installations. Compact, with optional ports for easy installation. The pressure-sensitive design permits a wide range of flows and provides pressure at once when the gun opens. The colour-coded spring identifies the pressure range and can be moved from one model to another. NBR O-rings are standard (fluid temperature up to 60 °C in continuous duty and up to 90 °C for short periods); with FPM O-rings for higher temperatures and chemical compatibility the valve carries the suffix .0110. The relief valve version carries the part number with the suffix .100. Model 7691 additionally has a quick-start valve that relieves the pump discharge line pressure at start-up.