157B4997 is a Danfoss seal kit (Seal Kit-PVE-S4) designed for PVE actuators used with PVG32-series proportional valves, including the PVG16-48 family. The kit features seals molded from NBR rubber, providing hydraulic sealing for electric actuators in demanding fluid-power applications. As a standard Danfoss service part, it serves as a replacement-seal solution for PVE actuators across PVG32 configurations (PVEO, PVEM, PVEP, PVEA, PVEH, PVES), enabling routine maintenance and reliable, leak-tight operation of hydraulic systems.
