Model: 548 1-1/4IN

Check Valve

Special Features:

Complies with mss sp-80; o/a lg 3.280 in.

Properties:

Thread Direction
Right-hand all ends
Flow Control Device
Disk
Maximum Operating Temp
150.0 degrees fahrenheit 2nd response
Maximum Operating Temp
353.0 degrees fahrenheit 1st response
Connection Style
Plain, optional end (pipe) all ends
Valve Operation Method
Automatic
Connection Type
Threaded internal pipe all ends
Mounting Position
Vertical
Thready Qty Per Inch (tpi)
11-1/2 1st end
Maximum Operating Pressure
125.0 pounds per square inch 1st response
Maximum Operating Pressure
200.0 pounds per square inch 2nd response
Thread Size
1.250 inches all ends
Material
Copper alloy flow control device
Material
Copper alloy 836 body
Material
Copper alloy 836 seat
Material Specification
Qq-c-390, alloy b5/d/ federal specification single material response body
Material Specification
Qq-c-390, alloy b5/d/ federal specification single material response seat
Media For Which Designed
Steam 1st response
Media For Which Designed
Water-oil-gas 2nd response
Style Designator
Straight thru
Thread Series Designator
Npt all ends
NSN
4820-00-287-4447
Part Number
548 1-1/4IN
Description
Valve,check
CAGE
76364

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 548 1-1/4IN NSN 4820-00-287-4447

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

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
1.5000lbs
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:
050855
UFC:
29290
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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