3/4 BSPP Relief Valve - 80 l/min - 50/350 bar - Steel Body

The M804BC35 is a ¾‑inch BSPP relief valve from Fluid‑App’s M80B series. It protects hydraulic circuits by diverting flow when pressure exceeds a set value. Designed for systems with flows up to 80 l/min, it allows users to adjust the relief pressure across a wide range of about 50–350 bar using an external handknob. The valve body is a compact steel cube roughly 70 mm wide and 50.5 mm deep, with a total height around 127 mm including the adjustment screw. It is rated for a maximum working pressure of 350 bar and weighs about 1 kg, offering a durable yet compact solution for high‑flow hydraulic systems.

Key specifications for M804BC35:

• Port size: ¾‑in BSPP threaded inlet and outlet.

• Maximum flow: Handles up to 80 l/min (≈ 21.1 US gpm).

• Pressure range: Adjustable spring allows relief pressure between approximately 50 and 350 bar.

• Construction: Steel body with handknob or optional tamper‑proof cap; cubic form roughly 70 mm wide and 50.5 mm deep; overall height ~127 mm.

• Weight: Approximately 1 kg (≈ 2.2 lb).

Data Sheet