Model: NMP414MDL-LL3120A

Safety Relief Valve

Properties:

Flow Control Device
Disk
Bonnet Type
Inside spring
Bonnet Attachment Method
Union
Disk Loading Method
Spring
Bolt Hole Quantity
4 1st end
Bolt Hole Quantity
3 2nd end
Maximum Operating Temp
650.0 degrees fahrenheit single response
Valve Operation Method
Automatic
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Mounting Facility
Bracket
Features Provided
Pressure tight outlet side
Valve Size
0.500 inches
Adjustable Pressure Range
+678.0/+820.0 pounds per square inch
Maximum Operating Pressure
750.0 pounds per square inch single response
Outside Diameter
3.562 inches 2nd end
Outside Diameter
3.750 inches 1st end
Thickness
0.375 inches 2nd end
Thickness
0.562 inches 1st end
First Connection Face To Centerline Distance
3.250 inches
Bolt Hole Diameter
0.562 inches all ends
Second Connection Face To Centerline Distance
3.125 inches
Bolt Circle Diameter
2.437 inches 2nd end
Bolt Circle Diameter
2.625 inches 1st end
Flange Face Design
Raised straight 1st end
Flange Face Design
Plain 2nd end
Raised Face Height
0.250 inches 1st end
Raised Face Diameter
2.000 inches 1st end
Material
Steel body
Material
Stainless steel flow control device
Material
Stainless steel seat
Material
Stainless steel stem
Material Specification
Mil-s-15083 military specification single material response body
Material Specification
Mil-s-867 military specification single material response flow control device
Material Specification
Qq-s-763 federal specification single material response seat
Material Specification
Qq-s-763 federal specification single material response stem
Media For Which Designed
Steam 1st response
Media For Which Designed
Water-oil-gas 2nd response
Style Designator
Angle flanged ends
NSN
4820-00-202-8261
Part Number
NMP414MDL-LL3120A
Description
Valve,safety Relief
CAGE

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 NMP414MDL-LL3120A NSN 4820-00-202-8261

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

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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