Larger sizes are available by special order.
All blocks are available in SAE O-ring, SAE flange, or BSPP porting . Standard materials are 6061T6 aluminum and steel, with most items available in higher strength aluminum and stainless steel. Appropriate platings and finishes are available for all materials. Top Units are designed to control start-up and operating pressure of power unit pumps. The other unit contains relief only, but incorporates multiple pressure and tank connections for ease of connection.