A sufficiently high pilot pressure at port X moves the control spool in the direction of the seat valve and pushes the seat poppet out of its seat. This allows for a free flow in both directions .
In order to ensure that the seat valve actively opens, the pressure ratios on both sides of the control spool are just as important as the area ratios at the seat poppet .










Product description :


Size 25
Component series 5X
Maximum operating pressure 315 bar
Maximum flow 450 l/min




Feature :


Sandwich plate valve for use in vertical stackings
Porting pattern according to ISO 4401-08-08-0-05 and NFPA T3.5.1 R2-2002 D08
For the leakage-free blocking of one or two actuator ports, optional
Various cracking pressures
Pre-opening standard
Check valve installation sets available individually
Special versions on request











About Us :


Siedman (Xiamen) Hydraulic Technology Co; Ltd is an professional supplier of hydraulic products, we have our own brand Mannesmann Rexroth, and also provide products of BOSCH-REXROTH. We provide good quality, best service and reasonable price. Our products include Pump, motors, cylinder,valves, manifolds and plates, electronics, Systems, power units, accumulators, filters, oil treatment, oil measurement technology, tools and configurators.
After many years of development, we have established several agents home and abroad, offering comprehensive and advanced hydraulic solution for mechanical and engineering application, industrial automation, renewable energy market etc, we focus on providing products and service that consistently exceed our customers` expectations and meeting regulatory requirements. We deliver top quality product in time and achieve customer satisfaction through continual quality and process improvement. Please feel free to contact us for all your requirement.




http://www.sdm-hyd.com