Model: 16649-18

Safety Relief Valve

Properties:

Thread Direction
Right-hand 1st end
Flow Control Device
Disk
Disk Loading Method
Spring
Valve Discharge Flow Rate
0.9 cubic feet per minute
Maximum Operating Temp
-70.0 degrees fahrenheit 1st response
Maximum Operating Temp
450.0 degrees fahrenheit 2nd response
Connection Style
G46b plain (pipe) 1st end
Connection Style
Plain (pipe) 1st end
Valve Operation Method
Automatic
Connection Type
Threaded external pipe 1st end
Maximum Operating Pressure
30.0 pounds per square inch 1st response
Thread Size
0.125 inches 1st end
Opening Pressure Setting
26.0 pounds per square inch
Material
Aluminum alloy 2024 seat
Material
Aluminum alloy 2024 stem
Material
Aluminum alloy 2024 body
Material
Stainless steel flow control device and silicon flow control device
Media For Which Designed
Air 1st response
Media For Which Designed
Oil, chlorinated transformer 3rd response
Media For Which Designed
Oxygen, gaseous 2nd response
Surface Treatment
Anodize
Style Designator
Straight thru
Thread Series Designator
Npt 1st end
NSN
4820-00-342-4799
Part Number
16649-18
Description
Valve,safety Relief
CAGE
58163

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 16649-18 NSN 4820-00-342-4799

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:
0.1000lbs
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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