Safety relief valve for overpressure relief in pipelines or pressure vessels. Direct spring actuation system.

Flanged threaded inlet connection. Main bell in brass-bronze cast iron.

Threaded at the outlet (female) to lead the discharge into the piping system to eliminate leakage.

Suitable for all types of fluids, whether liquid or gaseous.

It can be supplied regulated and sealed, at the pressure required by the customer, with the corresponding unitary CE certificate.

Includes sealing element as well as adjustment screw. Hexagonal cap with soft gasket to ensure total tightness of the assembly to prevent tampering.

Springs with adjustment range from 0.2 to 30 bar g pressure (3 to 435 psi g)

ATEX Category: II 3 G

We tell you more about the safety relief valve cod. V70.51, V70.52, V70.53 with ducted exhaust flange connection. CE certified according to European Pressure Equipment Directive DEP 2014/68/EU.

Available materials

- Brass-Bronze / Brass-Bronze

Seats available

- Metal
- Ptfe
- Fpm

Installation Tips

Note: The correct handling and installation of a safety relief valve is the key to avoid malfunctioning of the device.

- Clean the inlet and outlet connections to avoid impurities that could damage the sealing system.
- Avoid components that cause pressure losses (shut-off valves, pipe extensions, etc.) between the system/equipment and the safety relief valve.
- The diameter of the connection must be at least the same as the valve inlet.
- Always install in a vertical position.
- The discharge generates back pressures that must be taken into account when selecting the correct valve size and model.
- Do not use sealing gaskets that release residues.
- In steam lines, never install the valve below the pipe level.
- Please consult the particularities of installation according to the legislation in force at the final location.


The valves are supplied with plugs on the inlet and outlet ports to prevent damage to the internal parts and to prevent the valve from being damaged.
dust inlet. Mounting instructions included.