Model: 20218 TYPE 1741

Safety Relief Valve

Properties:

Flow Control Device
Disk
Bonnet Type
Inside screw
Bonnet Attachment Method
Bolted
Bolt Hole Quantity
4 all ends
Maximum Operating Temp
150.0 degrees fahrenheit single response
Valve Operation Method
Automatic
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Valve Size
3.000 inches
Adjustable Pressure Range
+30.0/+34.0 pounds per square inch
Maximum Operating Pressure
250.0 pounds per square inch single response
Outside Diameter
6.625 inches all ends
Thickness
0.938 inches all ends
First Connection Face To Centerline Distance
5.590 inches
Bolt Hole Diameter
0.688 inches all ends
Second Connection Face To Centerline Distance
6.090 inches
Bolt Circle Diameter
5.500 inches all ends
Flange Face Design
Plain all ends
Material
Copper alloy body
Material
Nickel alloy seat
Material
Nickel alloy stem
Material
Nickel alloy flow control device
NSN
4820-01-316-1065
Part Number
20218 TYPE 1741
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 20218 TYPE 1741 NSN 4820-01-316-1065

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:
--
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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