Model: F-191-D 2IN

Stop-check Valve

Properties:

Flow Control Device
Disk
Bonnet Type
Outside screw-yoke
Bonnet Attachment Method
Bolted
Bolt Hole Quantity
4 all ends
Maximum Operating Temp
567.0 degrees fahrenheit single response
Valve Operation Method
Manual
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Mounting Position
Horizontal
Valve Size
2.000 inches
Maximum Operating Pressure
150.0 pounds per square inch single response
Outside Diameter
6.000 inches all ends
Face To Face Distance
8.000 inches
Thickness
0.625 inches all ends
Bolt Hole Diameter
0.750 inches all ends
Bolt Circle Diameter
4.750 inches all ends
Flange Face Design
Raised straight all ends
Raised Face Height
0.062 inches all ends
Raised Face Diameter
3.625 inches all ends
Material
Cobalt alloy seat
Material
Steel comp 416 stem
Material
Steel comp 420 flow control device
Material
Steel uns k03504 body
Material Specification
Astm a105 assn standard single material response body
Material Specification
Astm a582 grade 416 (250 bhn) assn standard single material response stem
Material Specification
Astm a582 grade 420 (500 bhn) assn standard single material response flow control device
Media For Which Designed
Steam 1st response
Media For Which Designed
Oil 2nd response
Style Designator
Angle flanged ends
Supplementary Features
This item has been reviewed for asbestos material. The current approved sources 86520 has indicated their part number contained asbestos prior to 1984. They continue to manufacture the same part number without asbestos material after 1984
NSN
4820-01-289-0982
Part Number
F-191-D 2IN
Description
Valve,stop-check
CAGE
86520

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 F-191-D 2IN NSN 4820-01-289-0982

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:
A
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
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:
051080
UFC:
29300
LTL:
RATING VARIABLE
LCL:
--
WCC:
576
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 8481302090
  • SITC: 74730
  • End Use: Industrial machines, other
  • NAICS: 332911
  • USDA: 1

Freight Class: Check valves of steel

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