***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Hydraforce directly.***
The Hydraforce HLS06-B30-0-N (5251461) is a cartridge-style, screw-in hydraulic check valve designed for blocking circuits where flow priority must be given to higher pressure circuits over lower ones. This valve operates by allowing flow from either the higher pressure port 1 or 3 to port 2, making it ideal for applications requiring precise control of fluid direction and priority based on pressure levels. The HLS06-B30-0-N features a rapid response to changes in load direction, a high flow capacity of up to 7.6 liters per minute, and a low internal leakage rate of only 0.10 ml/min at 350 bar. This model boasts an impressive range of pressure ratings including a maximum operating pressure of 350 bar, proof pressure up to 690 bar, and a burst pressure rating of 1380 bar. It is engineered for durability and reliability with a cycle life of one million cycles. The HLS06-B30-0-N can handle operating fluid temperatures from -40°C to +100°C with standard Buna N seals, and even wider temperature ranges with alternative seal materials like Viton or urethane. Additionally, this valve is compatible with both mineral-based and synthetic hydraulic fluids within a viscosity range of 7.4 to 420 cSt. It ensures operational integrity even in environments with contamination levels up to ISO 4406:18/16/13. The compact unit weight (0.02 kg) and small internal wetted surface area (28 cm²) contribute to its reduced space claim and smaller hydraulic footprint in systems. Installation specifications include an HVC06b3 cavity requirement without orientation restrictions and a cartridge installation torque recommendation between 7-8 ft-lb for steel/ductile iron cavities. Optional accessories such as various seal kits (SK06B3NM for Buna N, SK06B3VM for Viton, SK06B3U0 for Urethane) are available along with installation instructions ensuring proper maintenance and functionality customization based on system requirements.