Model: 20194

Safety Relief Valve

Properties:

Flow Control Device
Disk
Bonnet Type
Outside screw-yoke
Bonnet Attachment Method
Bolted
Disk Loading Method
Spring
Renewable Seat Ring Type
Bolted
Maximum Operating Temp
150.0 degrees fahrenheit single response
Valve Operation Method
Automatic or manual
Connection Type
Unthreaded internal tube all ends
Adjustable Pressure Range
+20.0/+24.0 pounds per square inch
Maximum Operating Pressure
400.0 pounds per square inch single response
Outside Diameter Tube Accommodated
0.250 inches all ends
Part Name Assigned By Controlling Agency
1/4" relief valve type 1741-t
Material
Copper alloy 922 body
Material
Nickel alloy r-405 flow control device or nickel alloy 400 flow control device
Material
Nickel alloy r-405 stem or nickel alloy 400 stem
Material
Plastic polytetrafluoroethylene seat
Material Specification
Ams 3660 assn standard all material responses seat
Material Specification
Astm b-164 assn standard all material responses flow control device
Material Specification
Astm b-164 assn standard all material responses stem
Material Specification
Astm b-61 assn standard all material responses body
Media For Which Designed
Liquid single response
Furnished Items And Quantity
1 lever and 1 plugged drain and 2 tailpiece and 2 nut
Specification Data
81349 - mil-v-24332 government specification
Nondefinitive Specification/std Data
B grade
NSN
4820-01-526-8458
Part Number
20194
Description
Valve,safety Relief
CAGE
34944

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 20194 NSN 4820-01-526-8458

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:
A
ESD:
A
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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