Directional Spool Valve 4WEH16D7X/6EG24NS2K4 - Bosch Rexroth R900933773

When the main circuit runs unpressurised at times or its pressure varies widely, the pilot stage should stay independent of it. The pilot-operated directional spool valve 4WEH16D7X/6EG24NS2K4 in size 16 therefore takes pilot oil supply and pilot oil return externally and carries up to 300 l/min.

Benefits

• External pilot oil supply and external pilot oil return, the pilot stage works independently of the pressure in the main circuit.
• Up to 300 l/min across four ports in size 16 to port pattern ISO 4401-07-07-0-05.
• Maximum operating pressure 280 bar with NBR seals for HL hydraulic fluid.
• Two switching positions to symbol D, actuated at 24 VDC through a 3-pole connector (2 + PE) according to EN 175301-803.
• 10.5 kg weight with subplate mounting, the valve sits on the manifold without extra piping.

Technical data

Application

Pilot-operated directional valves in size 16 are found on presses, injection moulding machines and lifting gear, where a cylinder takes up a large volume of oil in a short time. External pilot oil is the right choice where the working circuit is run unloaded in bypass and the minimum pilot pressure would otherwise not be reliably available. At 300 l/min and 280 bar the valve covers cylinders with a large volume demand.

Manufacturer

Bosch Rexroth, material number R900933773, product family H-4W.H.. Performance limits and characteristic curves are given in the data sheet for pilot-operated directional spool valves (RE 24751), the range overview in RE 07600-B.