Bosch Rexroth R900347501 Z2S-6B1-64 Check Valve

Rexroth R900347501 Z2S-6B1-64 is a pilot-operated check valve in a sandwich-plate configuration that prevents reverse flow in hydraulic circuits until a pilot signal opens it. The unit is part of Bosch Rexroth’s Z2S check-valve family, represented here as the Z2S6B1-64 variant (R900347501) designed for sandwich-plate installation between manifolds. When not piloted, flow between the primary ports (A1/A2 and B1/B2) is blocked; versions A and B provide an external pilot port (G¼) to control opening, enabling selective forward flow in either leg of the circuit. This valve is used in industrial hydraulic systems requiring reliable one-way flow control with pilot actuation and is commonly integrated in OEM machinery and hydraulic manifolds that demand compact, stackable valve solutions.