safety Valve steam

Specification of

MOD. 496 EN

The valve works as an automatic pressure releasing regulator activated by the static pressure existing at the entrance to the valve and is characterized by its ability to open instantly and totally.
Design in accordance with “International Standard ISO 4126-1 Safety Valves”.

MOD. 495 EN

The valve works as an automatic pressure releasing regulator activated by the static pressure existing at the entrance to the valve and is characterized by its ability to open instantly and totally.
Design in accordance with “International Standard ISO 4126-1 Safety Valves”

MOD. 486 ASME

The valve works as an automatic pressure releasing regulator activated by the static pressure existing at the entrance to the valve and is characterized by its ability to open instantly and totally.
Design in accordance with “ASME code section VIII Div.1”.
Materials according ASME code section II and ASTM.
Connections according ASME/ANSI B16.5 standard.
Center to face dimensions according API-526.

MOD. 485 ASME

The valve works as an automatic pressure releasing regulator activated by the static pressure existing at the entrance to the valve and is characterized by its ability to open instantly and totally.
Design in accordance with “ASME code section VIII Div.1”.
Materials according ASME code section II and ASTM.
Connections according ASME B1.20.1 standard.

MOD. 596 EN

The valve works as an automatic pressure releasing regulator activated by the static pressure existing at the entrance to the valve and is characterized by its ability to open instantly and totally.
Design in accordance with “International Standard ISO 4126-1 Safety Valves”.

> MOD. 696 EN

The valve works as an automatic pressure releasing regulator activated by the static pressure existing at the entrance to the valve and is characterized by its ability to open instantly and totally.

 MOD. 004

Controlled safety pressure relief system CSPRS valves are mainly used where conventional direct-loaded spring action valves cannot guarantee the opening and closing margins that certain specifi c conditions of service demand.
The objective is to help the closure by means of pressure so that the valve remains completely watertight until reaching the set pressure and/or to activate the opening with pressure.
Once evacuated and in keeping with a previous adjustment, to assist with closing pressure, to once again achieve closure with the desired watertightness.
This allows us to:

• Stabilise the functioning in critical applications of one or several valves.
• Improve performance, position, repeatability and operational effi ciency.
• Improve the opening-closure hysteresis.
• Reduce product losses and minimise them in the case of working with several valves at staggered pressures, if conditions so permit.
• Increase the operating pressure of the system up to 99.9% of the set pressure.The control safety pressure relief system CSPRS device can be used with any safety valve available in the market and in particular, with models VYC Mod. 485, 486, 494, 495 and 496.