BSB Proportional Joint Fittings for Thin Oil Measurement with Sensitive Action and Long Service Life

BSB type proportional joint fittings are essential components in auto lubrication systems, designed to ensure precise and consistent oil distribution. These fittings incorporate a built-in flow limit bar and a one-way valve, which work together to control flow based on the throttling principle. The flow remains constant regardless of installation orientation—whether near, distant, high, low, horizontal, or vertical—making them highly versatile for industrial applications.

The proportional joint features a copper sleeve coating on rubber sealing parts (excluding the sealing face) to prevent expansion and aging, significantly extending the service life. A taper spring is used in the one-way valve mechanism to ensure sensitive and smooth oil drain action, effectively preventing reverse oil flow. This design enhances reliability and performance in demanding environments.

Flow ratio may vary with changes in environmental temperature and oil viscosity, but the BSB models maintain consistent performance across different conditions. Available in multiple models with specific flow coefficients, these fittings cater to various lubrication needs. The construction includes brass material for corrosion resistance, a hexagon head for easy installation, and a galvanized surface treatment for added durability.

These proportional joint fittings are ideal for use in centralized lubrication systems, providing efficient and reliable operation. They are manufactured to DIN standards, ensuring compatibility and quality. The design focuses on longevity and minimal maintenance, making them a cost-effective solution for industrial lubrication requirements.