The R6000 Series right angle relief valves now available from CIRCOR Instrumentation in both low and high pressure models have been designed to give users increased accuracy and consistency of cracking and reset pressures.
Low pressure valves covering 5 to 550 psi feature zero-friction poppets with a raised seal lip that minimises contact with the seat to eliminate sticktion and an encapsulated seat seal maintaining a small surface contact and protecting the seat from erosion due to flow. Six pressure spring ranges also offer increased accuracy.
High pressure versions covering 150 to 6000 psi have a Delta stem seal design that prevents friction while improving pressure accuracy. A balanced poppet design ensures that the cracking pressure stays the same regardless of back pressure.
These units come in three models: Medium for 150-2500 psi with six spring ranges; High for 150-5000 psi with seven spring ranges; and Extra High for 5000-6000 psi with a single spring. All are available with optional manual override handle.
PED approved and CE marked, all R6000 relief valves are offered with multiple end connections to ensure application versatility. Orifice sizes are 0.188in on the low and medium pressure units and 0.094in and 0.082in on the high and extra high models.
