Model: NMP-149

Safety Relief Valve

Properties:

Flow Control Device
Disk
Bonnet Type
Inside spring
Bonnet Attachment Method
Union
Disk Loading Method
Spring
Renewable Seat Ring Type
Welded
Bolt Hole Quantity
6 all ends
Valve Operation Method
Automatic or manual
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Valve Size
2.000 inches
Adjustable Pressure Range
+18.0/+32.0 pounds per square inch
Maximum Operating Pressure
100.0 pounds per square inch single response
Outside Diameter
5.562 inches all ends
Thickness
0.438 inches all ends
First Connection Face To Centerline Distance
4.750 inches
Bolt Hole Diameter
0.562 inches all ends
Second Connection Face To Centerline Distance
5.250 inches
Bolt Circle Diameter
4.438 inches all ends
Flange Face Design
Plain all ends
Material
Copper alloy 836 body
Material
Nickel alloy r-405 flow control device or copper alloy 922 flow control device
Material
Nickel alloy r-405 seat
Material
Nickel alloy r-405 stem or copper alloy 462 stem
Material Specification
Qq-c-390 alloy d4 federal specification single material response body
Material Specification
Qq-n-281 cl b federal specification single material response seat
Material Specification
Qq-n-281 cl b federal specification 1st material response flow control device or mil-b-16541 military specification 2nd material response flow control device
Material Specification
Qq-n-281 cl b federal specification 1st material response stem or mil-b-994 cl d military specification 2nd material response stem
Media For Which Designed
Water, fresh 2nd response
Media For Which Designed
Water, salt 1st response
Style Designator
Angle flanged ends
NSN
4820-00-202-6638
Part Number
NMP-149
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 NMP-149 NSN 4820-00-202-6638

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:
50.0000lbs
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:
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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