Model: 2251SSTL-8120-401T500PSI

Safety Relief Valve

Properties:

Flow Control Device
Disk
Maximum Operating Temp
425.0 degrees fahrenheit 2nd response
Maximum Operating Temp
850.0 degrees fahrenheit 1st response
Valve Operation Method
Automatic
Connection Type
Flange all ends
Valve Size
1.250 inches
Adjustable Pressure Range
+401.0/+500.0 pounds per square inch
Maximum Operating Pressure
400.0 pounds per square inch 2nd response
Maximum Operating Pressure
550.0 pounds per square inch 1st response
First Connection Face To Centerline Distance
3.750 inches
Second Connection Face To Centerline Distance
3.750 inches
Material
Stainless steel
Media For Which Designed
Steam 2nd response
Media For Which Designed
Water, salt 3rd response
Media For Which Designed
Air 1st response
NSN
4820-01-244-5297
Part Number
2251SSTL-8120-401T500PSI
Description
Valve,safety Relief
CAGE
01343

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 2251SSTL-8120-401T500PSI NSN 4820-01-244-5297

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

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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