Model: 20295

Safety Relief Valve

Properties:

Flow Control Device
Disk
Bonnet Type
Inside spring
Bonnet Attachment Method
Bolted
Disk Loading Method
Spring
Bolt Hole Quantity
4 all ends
Maximum Operating Temp
250.0 degrees fahrenheit single response
End Application
Ship, ohio class ss (trident)
Valve Operation Method
Automatic
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Valve Size
1.000 inches
Adjustable Pressure Range
+110.0/+160.0 pounds per square inch
Maximum Operating Pressure
135.0 pounds per square inch single response
Opening Pressure Setting
109.0 pounds per square inch
Outside Diameter
4.243 inches 2nd end
Outside Diameter
4.892 inches 1st end
Thickness
0.534 inches 2nd end
Thickness
0.738 inches 1st end
First Connection Face To Centerline Distance
3.400 inches
Bolt Hole Diameter
0.626 inches 2nd end
Bolt Hole Diameter
0.737 inches 1st end
Second Connection Face To Centerline Distance
3.587 inches
Bolt Circle Diameter
3.180 inches 2nd end
Bolt Circle Diameter
3.635 inches 1st end
Flange Face Design
Raised straight all ends
Raised Face Height
0.100 inches 2nd end
Raised Face Height
0.264 inches 1st end
Raised Face Diameter
2.015 inches 1st end
Raised Face Diameter
2.015 inches 2nd end
Material
Steel body
Material
Steel comp 303 flow control device
Material
Steel comp 303 seat
Material
Steel comp 303 stem
Material Specification
Astm a216, grade wcb 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
NSN
4820-01-061-0233
Part Number
20295
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 20295 NSN 4820-01-061-0233

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:
24.0000lbs
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:
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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