SV6PB2-6X/

***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Bosch Rexroth directly.***
The Bosch Rexroth SV6PB2-6X (R900589253) is a high-performance isolator valve designed for subplate mounting, providing reliable and leakage-free blocking of actuator ports even during prolonged periods of inactivity. The valve features a robust construction that includes a housing, seat poppet, compression spring, control spool, and an optional preopening as a ball seat valve. It allows flow from direction A to B without the need for external pilot pressure, with the condition that pA is greater than pB over the cracking pressure of the compression spring. In reverse flow, the valve ensures hydraulic tightness. When pilot pressure at port X is sufficient, it shifts the control spool and unseats the poppet to allow free flow in both directions. The design considerations include pressure ratios and area ratios at the seat poppet and control spool to guarantee active opening. Two versions are available: Version A with preopening provides secure unloading even at low pilot pressures and reduces switching shocks through dampened decompression; Version B without preopening may result in sudden unloading of included pressure volume, potentially causing wear on components and noise. The SV6PB2-6X can be modified to type SL by exchanging plugs provided in its configuration options. It adheres to ISO porting patterns for compatibility and offers various cracking pressures as per requirement. Additionally, customers have the option to select models with or without preopening functionalities. Individual check valve installation sets are also available for purchase. The valve is designed for maximum operating pressures up to bar levels and can handle maximum flow rates measured in liters per minute (l/min), ensuring it meets diverse application needs while maintaining efficiency and longevity. Optional corrosion-resistant designs further enhance its suitability across different environments where durability is paramount.