Model: 20315

Safety Relief Valve

Properties:

Thread Class
3a all ends
Thread Direction
Right-hand all ends
Flow Control Device
Disk
Bonnet Type
Inside spring
Bonnet Attachment Method
Bolted
Disk Loading Method
Spring
Renewable Seat Ring Type
Threaded
Maximum Operating Temp
150.0 degrees fahrenheit single response
End Application
Ship, ohio class ss (trident)
Connection Style
G50 external seat for gasket seal (boss) all ends
Valve Operation Method
Automatic
Connection Type
Threaded external boss all ends
Thready Qty Per Inch (tpi)
12 all ends
Adjustable Pressure Range
+76.0/+90.0 pounds per square inch
Maximum Operating Pressure
750.0 pounds per square inch single response
Thread Size
2.250 inches all ends
Material
Steel body
Material
Steel comp 303 flow control device and plastic polychlorotrifluoroethylene flow control device
Material
Steel comp 303 seat
Material
Steel comp 303 stem
Material Specification
Astm a351, grade cf8 assn standard single material response body
Material Specification
Qq-s-764, type 303-canceled federal specification single material response flow control device
Material Specification
Qq-s-764, type 303-canceled federal specification single material response seat
Material Specification
Qq-s-764, type 303-canceled federal specification single material response stem
Media For Which Designed
Air single response
Thread Series Designator
Un all ends
Specification Data
81349-mil-v-22549 government specification
Nondefinitive Specification/std Data
1500 rating and 1.000 in. Size
NSN
4820-01-050-2819
Part Number
20315
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 20315 NSN 4820-01-050-2819

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:
U
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
15.4000lbs
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:
127200
UFC:
64480
LTL:
85.0
LCL:
--
WCC:
576
TCC:
Z
SHC:
9
ACC:
Construction Materials

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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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