Model: 20327H51SS

Safety Relief Valve

Special Features:

Valve conforms to mil-v-24332 grade a, (except disk, seat and stem); stainless steel trim; flange per ansi b16.5, 150 lb, 1 in.

Properties:

Flow Control Device
Disk
Bolt Hole Quantity
4 all ends
Maximum Operating Temp
100.0 degrees fahrenheit 1st response
Maximum Operating Temp
300.0 degrees fahrenheit 2nd response
End Application
Strategic sealift conversion ships class
Valve Operation Method
Automatic or manual
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Mounting Facility
Bracket
Valve Size
1.000 inches
Adjustable Pressure Range
+45.0/+55.0 pounds per square inch
Maximum Operating Pressure
250.0 pounds per square inch 2nd response
Maximum Operating Pressure
285.0 pounds per square inch 1st response
Outside Diameter
4.250 inches all ends
Thickness
0.438 inches all ends
First Connection Face To Centerline Distance
3.500 inches
Bolt Hole Diameter
0.625 inches all ends
Second Connection Face To Centerline Distance
3.250 inches
Bolt Circle Diameter
3.125 inches all ends
Flange Face Design
Raised straight all ends
Raised Face Height
0.062 inches all ends
Raised Face Diameter
2.000 inches all ends
Material
Steel body
Material
Stainless steel flow control device
Material
Stainless steel seat
Material
Stainless steel stem
Material Specification
Astm a216 gr wcb assn standard single material response body
Material Specification
Astm a582 type 303 assn standard single material response flow control device
Material Specification
Astm a582 type 303 assn standard single material response stem
Material Specification
Astm a582 type 303 assn standard single material response seat
Furnished Items And Quantity
1 wrench
NSN
4820-01-448-1419
Part Number
20327H51SS
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 20327H51SS NSN 4820-01-448-1419

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:
32.0000lbs
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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