SV30PB3-4X/QMG24M

***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 SV30PB3-4X/QMG24M (R901426830) is an isolator valve designed for precise hydraulic control in various applications. This releasable check valve, suitable for subplate mounting or threaded connection, ensures leakage-free blocking of one actuator port, even during extended periods of inactivity. The unit's construction includes a durable housing, a seat poppet, a compression spring, and a control spool. Additionally, it features an optional preopening as a ball seat valve. The SV30PB3-4X/QMG24M valve operates by allowing fluid to flow from A to B without the need for external pilot pressure and closes hydraulically tight when the flow is reversed. The cracking pressure of the compression spring is activated when pA exceeds pB. For active opening, a sufficient pilot pressure at port X moves the control spool towards the ball seat valve in version A, lifting the seat poppet from its seat to permit free flow in both directions. This model offers two versions: Version A with preopening and Version B without preopening. Version A includes a two-stage setup with an increased control open ratio that allows low pilot pressure to be unloaded securely while also dampening decompression shock and reducing wear on components and noise levels. In contrast, Version B may unload pressure suddenly leading to potential switching shocks. The SV30PB3-4X/QMG24M is engineered for versatile use with porting patterns conforming to ISO standards NG6, NG10, and NG16 for subplate mounting or threaded connections. It is also equipped with internal pilot oil return and can be optionally configured with various cracking pressures. Check valve installation sets are available individually for this model. For maintenance or modification purposes, this type SV valve can be converted into type SL by exchanging specific plugs provided in its design. The plugs ensure adaptability while maintaining system integrity. The corrosion-protected design enhances the durability of this Bosch Rexroth isolator valve under challenging operating conditions.