The use of an overpressure valve / OP valve on the 1st stage of the regulator when using a free flow device / shut off device is mandatory and protects the regulator. The overpressure valve is mounted in the 3/8" medium pressure outlet and opens when the pressure in the regulator exceeds a defined value.
- Response pressure 14 Bar
- For connection to a 1st stage with 3/8'' outlet
- Material: stainless steel
Connection designation and dimension according to standard:
to 1st stage: 3/8" 24 UNF MALE, approx. 9.525 mm