Model: TP4756-20

Check Valve

Properties:

Thread Class
3a 1st end
Thread Direction
Right-hand all ends
Flow Control Device
Poppet
Disk Loading Method
Spring
Maximum Operating Temp
200.0 degrees fahrenheit single response
Connection Style
Flared (tube) 1st end
Connection Style
Plain, optional end (pipe) 2nd end
Valve Operation Method
Automatic
Connection Type
Threaded external tube 1st end
Connection Type
Threaded internal pipe 2nd end
Mounting Position
Horizontal or vertical
Thready Qty Per Inch (tpi)
12 1st end
Maximum Operating Pressure
3000.0 pounds per square inch single response
Thread Size
1.250 inches 2nd end
Thread Size
1.625 inches 1st end
Seat Angle
37.0 degrees 1st end
Material
Steel comp 303 body
Material
Steel comp 303 seat
Material
Stainless steel flow control device and rubber butadiene-acrylonitrile class nbr flow control device
Material Specification
Fed standard 66, aisi 303/sae 30303 federal standard single material response body
Material Specification
Fed standard 66, aisi 303/sae 30303 federal standard single material response seat
Media For Which Designed
Acetylene 1st response
Media For Which Designed
Carbon dioxide 2nd response
Media For Which Designed
Hydraulic fluid, phosphate-ester base 3rd response
Media For Which Designed
Hydraulic fluid, silicate-ester base 4th response
Surface Treatment
Passivate
Style Designator
Straight thru
Thread Series Designator
Nptf 2nd end
Thread Series Designator
Un 1st end
NSN
4820-00-800-1562
Part Number
TP4756-20
Description
Valve,check
CAGE
54716

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 TP4756-20 NSN 4820-00-800-1562

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: 8481302090
  • SITC: 74730
  • End Use: Industrial machines, other
  • NAICS: 332911
  • USDA: 1

Freight Class: Check valves of steel

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