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Flanged globe type pressure relief valve

Flanged globe type pressure relief valve

  • Certificate: UL Listed / FM Approved / CE
  • Standard: UL 1478, NFPA 20
  • Connection: Flanged as B16.42 Class 150 / 300, B16.1 Class 125 / 250, EN 1092-2 PN16
  • Adjustment: 20 ~ 200 / 100 ~ 300 psi, etc.
  • Temperature: Max 82°C, water
  • W. pressure: 250 / 400 psi, etc.
  • Surface: FBE coating as AWWA C550

Product Details

Flanged globe type pressure relief valve (Fire pump relief valve) is used in the discharge of fire pump with flanged connection. It automatically relieves excessive pressure, so to maintain constant pressure. It allows the fire pump to be stopped without causing surging.

Available size (Source 1 with UL/FM)

Size Relief pressure range (psi) Connection Ref.No.
1-1/2″ / DN40 20 ~ 200 / 100 ~ 300 Class 150 / 300 U1101 (ULC)
2″ / DN50 20 ~ 200 / 100 ~ 300 Class 150 / 300 U1102 (ULC)
2-1/2″ / DN65 20 ~ 200 / 100 ~ 300 Class 150 / 300 U1103 (ULC)
3″ / DN80 20 ~ 200 / 100 ~ 300 Class 150 / 300 U1104 (UL/FM)
4″ / DN100 20 ~ 200 / 100 ~ 300 Class 150 / 300 U1105 (UL/FM)
6″ / DN150 20 ~ 200 / 100 ~ 300 Class 150 / 300 U1107 (UL/FM)
8″ / DN200 20 ~ 200 / 100 ~ 300 Class 150 / 300 U1108 (UL/FM)
10″ / DN250 20 ~ 200 / 100 ~ 300 Class 150 / 300 U1109 (ULC)

Note:
1. For size 3″, 4″, 6″, and 8″, the working pressure of Class 300 connection is 300 psi by UL listed, and 400 psi by FM approved.
2. EN/BS flanged end connection is also available by FM approved, including EN 1092-2 PN10, PN16, or PN25.
3. KOL Anti-Cavitation Trim Seat is available.

Available size (Source 2 with UL/FM)

Size Relief pressure range (psi) Connection Ref.No.
1-1/2″ / DN40 65 ~ 300 Class 125 / 150 / 250 / PN16 U1121 (UL/FM)
2″ / DN50 65 ~ 300 Class 125 / 150 / 250 / PN16 U1122 (UL/FM)
2-1/2″ / DN65 65 ~ 300 Class 125 / 150 / 250 / PN16 U1123 (UL/FM)
3″ / DN80 65 ~ 300 Class 125 / 150 / 250 / PN16 U1124 (UL/FM)
4″ / DN100 65 ~ 300 Class 125 / 150 / 250 / PN16 U1125 (UL/FM)
5″ / DN125 65 ~ 300 Class 125 / 150 / 250 / PN16 U1126 (UL/FM)
6″ / DN150 65 ~ 300 Class 125 / 150 / 250 / PN16 U1127 (UL/FM)
8″ / DN200 65 ~ 300 Class 125 / 150 / 250 / PN16 U1128 (UL/FM)
10″ / DN250 65 ~ 300 Class 125 / 150 / 250 / PN16 U1129 (FM)
12″ / DN300 65 ~ 300 Class 125 / 150 / 250 / PN16 U1130 (FM)

Available size (Source 3 with CE)

Size Relief pressure range (psi) Connection Ref.No.
2″ / DN50 29 ~ 188 Class 125 / PN16 U1142 (CE)
2-1/2″ / DN65 29 ~ 188 Class 125 / PN16 U1143 (CE)
3″ / DN80 29 ~ 188 Class 125 / PN16 U1144 (CE)
4″ / DN100 29 ~ 188 Class 125 / PN16 U1145 (CE)
6″ / DN150 29 ~ 188 Class 125 / PN16 U1147 (CE)
8″ / DN200 29 ~ 188 Class 125 / PN16 U1148 (CE)
10″ / DN250 29 ~ 188 Class 125 / PN16 U1149 (CE)
12″ / DN300 29 ~ 188 Class 125 / PN16 U1150 (CE)
14″ / DN350 29 ~ 188 Class 125 / PN16 U1151 (CE)
16″ / DN400 29 ~ 188 Class 125 / PN16 U1152 (CE)

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