Model: D1831-1-1/2IN

Stop-check Valve

Properties:

Flow Control Device
Disk
Bonnet Type
Outside screw-yoke
Bonnet Attachment Method
Bolted
Bolt Hole Quantity
4 all ends
Valve Operation Method
Manual
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Mounting Position
Vertical
Features Provided
Bonnet packing
Maximum Operating Pressure
1500.0 pounds per square inch single response
Outside Diameter
7.000 inches all ends
Thickness
1.250 inches all ends
First Connection Face To Centerline Distance
6.000 inches
Bolt Hole Diameter
1.125 inches all ends
Second Connection Face To Centerline Distance
6.000 inches
Bolt Circle Diameter
4.875 inches all ends
Flange Face Design
Raised straight all ends
Raised Face Height
0.250 inches all ends
Raised Face Diameter
2.875 inches all ends
Material
Nickel alloy seat
Material
Nickel alloy stem
Material
Nickel alloy body
Material
Nickel alloy flow control device
Material Specification
Qq-n-288, comp e federal specification single material response body
Style Designator
Angle
Specification Data
81349-dod-v-24675 government specification
Nondefinitive Specification/std Data
Viii type
NSN
4820-01-021-4618
Part Number
D1831-1-1/2IN
Description
Valve,stop-check
CAGE
17062

A valve with a bolt or stem that may be mechanically actuated to two different positions by rotary or linear motion. In the first position, the valve disk is located and locked against the seat permitting no fluid flow through the valve. In the second position, one side of the valve disk is located against the seat permitting movement of the disk in a manner that will allow a flow of fluid in one direction through the valve. The valve disk may be spring loaded. It may be inline or cartridge (manifold) design. See also valve (1), lift-check and valve (1), stop-lift-check.

Part D1831-1-1/2IN NSN 4820-01-021-4618

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05486
FIIG:
A530B0
Concept No.:
1
App. Key:
Cond. Code:
2
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:
60.0000lbs
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: 8481309000
  • SITC: 74730
  • End Use: Industrial machines, other
  • NAICS: 332911
  • USDA: 1

Freight Class: Check valves of materials other than copper, iron or steel

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