Model: 68-44-1

Lift-check Valve

Special Features:

Stem turns 60 degrees tolift disk

Properties:

Thread Class
3a 1st end
Thread Direction
Right-hand 1st end
Flow Control Device
Disk
Bonnet Type
Packing retaining
Disk Loading Method
Spring
Renewable Seat Ring Type
Threaded
Maximum Operating Temp
160.0 degrees fahrenheit single response
Connection Style
Double compression (tube) 1st end
Valve Operation Method
Automatic
Connection Type
Threaded internal tube 1st end
Mounting Position
Horizontal
Maximum Operating Pressure
3000.0 pounds per square inch single response
Thread Size
0.750 inches 1st end
Outside Diameter Tube Accommodated
0.500 inches 1st end
Material
Aluminum alloy body
Material
Aluminum alloy seat
Material
Stainless steel stem
Style Designator
Straight thru
Thread Series Designator
Unf 1st end
NSN
4820-00-679-1649
Part Number
68-44-1
Description
Valve,lift-check
CAGE
98391

A valve with a stem that may be mechanically actuated to two different positions by rotary or linear motion. In the first 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. In the second position, the valve disk is lifted from the seat to allow a flow of fluid in either direction through the valve. The valve disk may be spring loaded. See also valve, stop-check and valve, stop-lift-check.

Part 68-44-1 NSN 4820-00-679-1649

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
27828
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:
A
ESD:
ESD:
MMAC:
LG
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
1.1000lbs
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: 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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