Model: NMP129

Safety Relief Valve

Properties:

Flow Control Device
Disk
Bonnet Type
Inside spring
Bonnet Attachment Method
Union
Disk Loading Method
Spring
Renewable Seat Ring Type
Threaded
Bolt Hole Quantity
6 all ends
Maximum Operating Temp
425.0 degrees fahrenheit single response
Valve Operation Method
Automatic
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Valve Size
1.500 inches
Maximum Operating Pressure
100.0 pounds per square inch single response
Opening Pressure Setting
25.0 pounds per square inch
Outside Diameter
5.000 inches all ends
Thickness
0.500 inches all ends
First Connection Face To Centerline Distance
3.750 inches
Bolt Hole Diameter
0.562 inches all ends
Second Connection Face To Centerline Distance
4.250 inches
Bolt Circle Diameter
3.875 inches all ends
Flange Face Design
Plain all ends
Material
Copper alloy 922 body
Material
Copper alloy 922 seat
Material
Nickel alloy 400 stem
Material
Nickel alloy flow control device
Material Specification
Qq-c-390, alloy d4/d federal specification 1st material response body
Material Specification
Qq-c-390, alloy d4/d federal specification 3rd material response seat
Material Specification
Qq-n-281, class a federal specification 4th material response stem
Material Specification
Qq-n-288, comp a federal specification 2nd material response flow control device
Media For Which Designed
Water, salt single response
NSN
4820-01-006-1395
Part Number
NMP129
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 NMP129 NSN 4820-01-006-1395

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:
2.0000lbs
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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