Danfoss

Description:  PRMP 064-E-3-00-XXX
Pressure Reducing, Relieving, Pilot Operated 315 bar [4600 psi]• 40 I/min [11 US gpm] 
This is a normally open, pilot operated pressure reducing valve. Port 2 is open to port 1 until the setting is reached, at which time the valve throttles the outlet flow limiting the pressure. If the outlet pressure rises due to an external force.,then the valve will open port 1 to port 3 acting as a relief valve. This valve is ideal for stable and precise control of a secondary pressure within a circuit. 

RV08-DR-1-E-XXX-B-00 - DANFOSS

Decription: RV08-DR-2-E-XXX-B-00

Relief Valve, Direct Acting, Poppet Type with Dampening
250 bar [3600 psi] • 30 l/min [8 US gpm]
DESCRIPTION AND OPERATION
This is a direct acting, poppet type relief valve that relieves from port 1 to 2. It features a highly damped poppet for smooth and stable response. It can be used as a cost-effective main relief or to protect an actuator from over-pressurization.

Relief valve, Pilot Operated, Spool Type with Reverse Free Flow
250 bar [3600 psi] • 120 l/min [32 US gpm]
DESCRIPTION AND OPERATION
This is a pilot operated, poppet type relief valve that relieves from port 1 to port 2 with an integrated reverse flow check valve from port 2 to 1. Due to its unique poppet design, this valve offers faster response than a typical pilot operated valve. It can be used to limit pressure in a system or on a service line of a directional valve. It maintains accurate pressure control with constant or varying flows, while also allowing make up flow through in the reverse direction

Flow Control, Partially Adjustable, Pressure Compensated, Priority Type
315 bar [4600 psi] • 30 l/min [8 US gpm]
This is a partially adjustable, priority type, pressure compensated flow control valve, where the flow from port 3 will remain constant regardless of the pressure difference across the valve, while excess flow passes from port 1 to 2. Flow enters at port 1 and passes across a fixed orifice in the spool, which creates a pressure drop. This causes the spool to move back against the spring, which then restricts the outlet flow. Port 1 then opens to port 2 to allow excess flow to pass. The regulated flow will always take priority and remains constant if the working pressure is higher in either port 2 or port 3.

Flow Control, Partially Adjustable, Pressure Compensated, Priority Type
315 bar [4600 psi] • 73 l/min [19 US gpm]
DESCRIPTION AND OPERATION
This is a partially adjustable, priority type, pressure compensated flow control valve, where the flow from port 3 will remain constant regardless of the pressure difference across the valve, while excess flow passes from port 1 to 2. Flow enters at port 1 and passes across a fixed orifice in the spool, which creates a pressure drop. This causes the spool to move back against the spring, which then restricts the outlet flow. Port 1 then opens to port 2 to allow excess flow to pass. The regulated flow will always take priority and remains constant if the working pressure is higher in either port 2 or port 3.

Danfoss Seal kit last longer than other brands' kit, we suggest you use original spare parts.