Circle Seal Controls relief valves are available for operating pressures up to 10,500 psi, sizes up to 1″ FNPT, and in a variety of materials.
RELIEF VALVES OVERVIEW
Cracking
Pressure
Body
Materials
Seal
Materials
Temperature
Range
Connection
Size & Type
500
0.5 – 150 psig
Aluminum; Brass; 303SS; 316SS
Buna; EPR; Neoprene; PTFE; Silicone; Viton
-320F to +400F
POPOFF: 1/8″ to 1″ MNPT
INLINE: 1/4″ to 1-1/4″ MNPTxFNPT
L500
0.2 – 15 psig
Brass; 316SS
Buna; EPR; Kalrez; Neoprene; Viton
-70F to +550F
POPOFF: 1/4″ to 1/2″ MNPT
INLINE: 1/4″ to 1/2″ MNPTxFNPT
HP500
150 – 575 psig
Brass; 316SS
Buna; EPR; Neoprene; Silicone; Viton
-65F to +350F
POPOFF: 1/4″ to 1/2″ MNPT
INLINE: 1/4″ to 1/2″ MNPTxFNPT
5100
10 – 2,400 psig
Brass; Carbon Steel; 303SS; 316SS
Buna; EPR; Neoprene; PTFE; Viton
-320F to +400F
POPOFF: 1/8″ to 1-1/4″ MNPT
INLINE: 1/8″ to 1-1/4″ MNPTxFNPT
D500-ASME
M5100-ASME
D500: 15 – 150 psig
M5100: 20 to 1,200 psig
Naval Brass; 303SS; 316SS
D500: Buna; EPDM; Neoprene; PTFE; Silicone; Viton
M5100: Buna; EPDM; Neoprene; PTFE; Viton
-100F to +400F
D500: 1/4″ MNPT
M5100: 1/8″ to 1″ MNPT
5300
400 – 10,500 psig
Brass; 303SS; 316SS
Buna; Neoprene; Viton
-65F to +350F
1/4″ to 1/2″ FNPTxFNPT
For assistance with or additional information on any of these products, please contact sa***@fl*****************.com.