Model: 20167D02R0058

Safety Relief Valve

Special Features:

Type 1551-t relief valve; 1/2" inlet and 3/4" outlet; union nuts and tailpieces are bronze. Rated capaci type 204 scfm, required capaci type 30 scfm

Properties:

Flow Control Device
Disk
Bonnet Type
Inside spring
Bonnet Attachment Method
Bolted
Disk Loading Method
Spring
Renewable Seat Ring Type
Retaining screw
Maximum Operating Temp
320.0 degrees fahrenheit single response
End Application
New construction lcs1
Valve Operation Method
Automatic
Connection Type
Unthreaded internal tube all ends
Valve Size
0.500 inches
Maximum Operating Pressure
500.0 pounds per square inch single response
Criticality Code Justification
Zzzy
Opening Pressure Setting
58.0 pounds per square inch
First Connection Face To Centerline Distance
3.625 inches
Second Connection Face To Centerline Distance
3.562 inches
Part Name Assigned By Controlling Agency
1/2 x 3/4 relief valve
Material
Bronze body
Material
Nickel alloy seat
Material
Nickel alloy stem
Material
Nickel alloy flow control device and plastic polytetrafluoroethylene flow control device
Furnished Items And Quantity
1 plugged drain and 2 tailpiece and 2 nut
Specification Data
81349 - mil-v-22549 government specification
Reference Number Differentiating Characteristics
Material will be in accordance with ships parts control center activity hx quality control, manufacturing, testing specifications
NSN
4820-01-539-3343
Part Number
20167D02R0058
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 20167D02R0058 NSN 4820-01-539-3343

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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