Self operated pressure /Regulators excess globe valve S4, simple seat, direct action and self-operated  excess pressure valve. Built with piston and specially designed to maintain an stable pressure in main line, the S4 valve reliefs the excess of pressure. 

When upstream pressure rises above adjusted set point, the valve opens proportionally. 

Easy to adjust and doesn`t need any maintainance. It is possible to install the valve in any position

* Zoekterm: stoomwater, steam water, druk ventielen, pressure relief valve