Model: 20342B01S0145

Safety Relief Valve

Properties:

Flow Control Device
Disk
Bonnet Type
Inside spring
Bonnet Attachment Method
Union
Disk Loading Method
Spring
Valve Discharge Flow Rate
1493.0 pounds per hour
Renewable Seat Ring Type
Threaded
Bolt Hole Quantity
4 1st end
Bolt Hole Quantity
4 2nd end
Maximum Operating Temp
775.0 degrees fahrenheit single response
Valve Operation Method
Automatic
Flange Shape
Round with holes 1st end
Flange Shape
Round with holes 2nd end
Connection Type
Flange 2nd end
Connection Type
Flange 1st end
Features Provided
Pressure tight outlet side
Valve Size
0.500 inches
Adjustable Pressure Range
+145.0/+206.0 pounds per square inch
Maximum Operating Pressure
400.0 pounds per square inch single response
Outside Diameter
3.500 inches 2nd end
Outside Diameter
3.750 inches 1st end
Thickness
0.425 inches 2nd end
Thickness
0.575 inches 1st end
First Connection Face To Centerline Distance
3.250 inches
Bolt Hole Diameter
0.630 inches 1st end
Bolt Hole Diameter
0.630 inches 2nd end
Second Connection Face To Centerline Distance
3.500 inches
Bolt Circle Diameter
2.375 inches 2nd end
Bolt Circle Diameter
2.625 inches 1st end
Flange Face Design
Raised straight 1st end
Flange Face Design
Raised straight 2nd end
Raised Face Height
0.050 inches 2nd end
Raised Face Height
0.245 inches 1st end
Raised Face Diameter
1.360 inches 2nd end
Raised Face Diameter
1.375 inches 1st end
Material
Steel body
Material
Steel flow control device or steel comp 304 flow control device
Material
Steel seat or steel comp 304 seat
Material Specification
Astma105, grade2 assn standard single material response body
Material Specification
Astma276, type303 assn standard 1st material response seat or astma276, type304 assn standard 2nd material response seat or astma276, type316-canceled assn standard 3rd material response seat
Material Specification
Astma276, type303 assn standard 1st material response flow control device or astma276, type304 assn standard 2nd material response flow control device or astma276, type316-canceled assn standard 3rd material response flow control device
Material Specification
Fed standard 66, aisi 410/sae 51410 federal standard single material response stem
Media For Which Designed
Steam single response
Style Designator
Angle flanged ends
Nondefinitive Specification/std Data
2 type and d composition and 1-2in.Ips size
NSN
4820-00-245-0862
Part Number
20342B01S0145
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 20342B01S0145 NSN 4820-00-245-0862

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:
17.8000lbs
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:
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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