Description
The Bedford 20-3327 is a direct-fit replacement for the Merkur LW075A check ball kit, a critical fluid delivery component in Graco’s Merkur series airless spray pumps. This kit contains the precision-machined check balls and seats required to maintain proper one-way flow control through the pump’s discharge circuit. Pump service technicians and spray equipment specialists rely on check ball kits to restore reliable pressure buildup and fluid delivery when existing balls become pitted, stuck, or fail to seal.
Common reasons for replacement:
- Loss of prime or inability to build system pressure due to check ball leakage or sticking
- Reduced spray volume or pulsating output caused by intermittent sealing at the pump head
- Visible pitting, corrosion, or surface degradation on balls or seats during routine pump inspection
- Fluid backflow into the inlet line or tank following system shutdown
Manufactured to OEM-equivalent dimensions for proper fit and performance. Compatible Graco equipment models are listed in the Compatible Equipment section below, where available.
