Filling Valve SF125B1-1-4X/SO103 - Bosch Rexroth R901164233

Large press cylinders fill from the tank on a rapid stroke, not from the pump. The SF125B1-1-4X/SO103 prefill valve handles that suction flow at up to 3800 l/min, sits in the tank and opens under hydraulic actuation with pre-decompression.

Benefits

• Up to 3800 l/min flow capacity for prefilling during the rapid stroke
• Pre-decompression on opening, so pressure is not released abruptly
• Seat valve design with two switching positions, symbol A to B
• Operating pressure up to 350 bar in size 125
• Tank installation, port thread to ISO 228-1
• Hydraulic actuation without electrics, NBR seals, weight 61.5 kg

Applications

The valve is fitted in the tank or header above the press cylinder so oil can follow during the rapid stroke. On retraction it opens again and returns the displaced volume to the tank. Being purely hydraulically actuated, it needs no electrical control.

Manufacturer

Bosch Rexroth, material number R901164233, product family SF. The SO103 suffix belongs to the special build and must be quoted on every repeat order.