Model: LL-2120-C .50IN 191T255PSI

Safety Relief Valve

Properties:

Flow Control Device
Disk
Bonnet Type
Inside screw
Disk Loading Method
Spring
Valve Discharge Flow Rate
24.0 gallons per minute
Maximum Operating Temp
180.0 degrees fahrenheit single response
End Application
W/s code "ja" nimitz class cvn
Valve Operation Method
Automatic
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Valve Size
0.500 inches
Maximum Operating Pressure
400.0 pounds per square inch single response
First Connection Face To Centerline Distance
2.500 inches
Second Connection Face To Centerline Distance
2.500 inches
Material
Copper alloy seat
Material
Copper alloy stem
Material
Copper alloy body
Material Specification
Mil-b-16541 military specification single material response body
Material Specification
Qq-b-657 federal specification single material response seat
Material Specification
Qq-b-657 federal specification single material response stem
Media For Which Designed
Waste product 2nd response
Media For Which Designed
Water, salt 1st response
NSN
4820-01-470-5738
Part Number
LL-2120-C .50IN 191T255PSI
Description
Valve,safety Relief
CAGE
15187

A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes valve (1), relief, pressure and temperature.

Part LL-2120-C .50IN 191T255PSI NSN 4820-01-470-5738

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05488
FIIG:
A046B0
Concept No.:
1
App. Key:
AP
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
A
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
127220
UFC:
64490
LTL:
77.5
LCL:
--
WCC:
594
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 8481400000
  • SITC: 74740
  • End Use: Industrial machines, other
  • NAICS: 332911
  • USDA: 1

Freight Class: Safety or relief valves

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