Product Description
Valve check
Frequently Asked Questions
Q: What does the BA 988621 check valve do in an electric lift truck?
A: The BA 988621 check valve is a one-way hydraulic flow control device. It allows hydraulic fluid to flow in one direction while blocking reverse flow, preventing load drift and maintaining system pressure.
Q: What electric lift truck brands use the BA 988621 check valve?
A: The BA 988621 is compatible with electric lift trucks from Toyota, Crown, Raymond, Jungheinrich, Linde, and BT. Confirm the valve connection type and pressure rating matches your hydraulic circuit.
Q: What is the pressure rating and flow capacity of the BA 988621?
A: The BA 988621 has a typical cracking pressure of 2.5 to 3.5 bar and handles flow rates up to 40 liters per minute. Verify the exact specifications for your application.
Q: What causes the BA 988621 check valve to fail?
A: Contaminated hydraulic fluid, valve seat erosion, and internal spring corrosion are primary failure causes. Using incorrect fluid viscosity or failing to change filters accelerates degradation.
Q: How long does the BA 988621 check valve typically last?
A: With regular hydraulic fluid maintenance and proper filtration, the BA 988621 has a service life of 5 to 7 years. Contaminated systems may require replacement within 1 to 2 years.