hp-Technik Bypass oil valve B-G-Pro-2

The hp-Technik B-G-Pro-2 bypass oil valve is a spring-loaded piston valve designed to maintain or limit system pressure in oil burner systems. It features an adjustment screw and interchangeable springs, allowing for five distinct pressure settings. The valve operates within a supply range of 90–600 l/h and a maximum pressure of 22 bar. It is suitable for oils with a maximum viscosity of 450 mm²/sec.

When selecting a bypass valve of this type, ensure that the pressure range and adjustment mechanism match the system requirements. The valve must be compatible with the oil viscosity and flow rate of the burner. Installation involves connecting the inlet to the discharge line and the outlet to the return line, ensuring proper orientation for pressure regulation.

Common failures include spring fatigue or piston sticking, leading to unstable pressure or inability to maintain set pressure. Symptoms may include fluctuating burner operation, oil leakage, or improper fuel delivery. Check the adjustment screw and springs for wear or damage, and verify that the valve is not clogged with debris.