Atos KR-012 modular pilot-operated check valve

KR-012 is an Atos modular pilot-operated check valve. This pilot-operated poppet check valve acts on ports A and B. It allows forward flow and blocks reverse flow. Hydraulic pilot pressure opens the check function; the standard pilot area ratio is 3.3:1.

The standard KR model is rated for a maximum operating pressure of 315 bar and a maximum flow of 120 L/min. It uses nominal size 10 and an ISO 4401-05-04-0-05 mounting interface for integration into a modular hydraulic valve stack.

Atos specifies a standard spring cracking pressure of 0.5 bar. Optional spring and seal executions are separate from this published standard designation.