Model: 259B1PP

Check Valve

Special Features:

Designed for alcohol, fuel/oil, hydrocarbon, and water-oil-gas

Properties:

Pipe Size Accommodated
0.125 inches all ends
Thread Direction
Right-hand all ends
Flow Control Device
Poppet
Disk Loading Method
Spring
Maximum Operating Temp
250.0 degrees fahrenheit 1st response
Maximum Operating Temp
250.0 degrees fahrenheit 2nd response
Maximum Operating Temp
250.0 degrees fahrenheit 3rd response
Connection Style
Plain, optional end (pipe) all ends
Valve Operation Method
Automatic
Connection Type
Threaded external tube all ends
Mounting Position
Horizontal or vertical
Thready Qty Per Inch (tpi)
27 all ends
Maximum Operating Pressure
3000.0 pounds per square inch 1st response
Maximum Operating Pressure
3000.0 pounds per square inch 2nd response
Maximum Operating Pressure
3000.0 pounds per square inch 3rd response
Thread Size
0.125 inches 1st end
Material
Copper alloy seat
Material
Copper alloy body
Style Designator
Straight thru
Thread Series Designator
Npt all ends
NSN
4820-00-626-3741
Part Number
259B1PP
Description
Valve,check
CAGE
91816

A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.

Part 259B1PP NSN 4820-00-626-3741

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05487
FIIG:
A530B0
Concept No.:
1
App. Key:
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:
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: 8481301090
  • SITC: 74730
  • End Use: Industrial machines, other
  • NAICS: 332911
  • USDA: 1

Freight Class: Check valves of copper having a pressure rating of 850 kpa or over

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