| Article number | GR-RA-0401000 |
| Product variant name | R-4000 check valve 1/4" BSP |
| Nominal inner diameter | - |
| Working pressure [bar] | 700 |
The R-4000 check valve is a robust and reliable solution engineered in compliance with the PED Directive 2014/68/EU, making it ideal for demanding hydraulic and industrial systems operating under high pressure. Designed to ensure secure flow control, it allows free passage of the medium in one direction while effectively blocking reverse flow, guaranteeing system safety and efficiency. With a standard opening pressure of 0.5 bar and optional variants of 1, 2, 3, or 5 bar, it offers flexibility to match diverse application requirements. The valve is available in durable materials such as galvanized steel, nickel-plated brass, and corrosion-resistant stainless steel AISI 316L, ensuring long service life even in harsh environments. High-quality sealing options include NBR (RA, RL), viton (FKM – RZ), and EPDM, providing excellent compatibility with different media and operating conditions. Depending on the sealing material, the valve withstands temperatures from -40°C up to +200°C, making it a versatile choice for a wide range of industries. Its precise construction and reliable performance make the R-4000 an essential component for professionals seeking efficiency, durability, and uncompromising safety in fluid control systems.