Model: C3458PL4158-45T70PSI

Safety Relief Valve

Properties:

Flow Control Device
Disk
Bonnet Type
Inside spring
Bonnet Attachment Method
Bolted
Disk Loading Method
Spring
Bolt Hole Quantity
8 all ends
Maximum Operating Temp
180.0 degrees fahrenheit single response
Valve Operation Method
Automatic
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Valve Size
4.000 inches
Adjustable Pressure Range
+45.0/+70.0 pounds per square inch
Maximum Operating Pressure
300.0 pounds per square inch single response
Outside Diameter
9.000 inches all ends
Thickness
0.688 inches all ends
First Connection Face To Centerline Distance
5.812 inches
Bolt Hole Diameter
0.750 inches all ends
Second Connection Face To Centerline Distance
5.812 inches
Bolt Circle Diameter
7.500 inches all ends
Flange Face Design
Raised straight all ends
Raised Face Height
0.062 inches all ends
Raised Face Diameter
6.188 inches all ends
Material
Nickel alloy seat
Material Specification
Astm b61 assn standard single material response body
Material Specification
Qq-n-288 federal specification single material response stem
Material Specification
Qq-n-298 federal specification single material response seat
Media For Which Designed
Water, salt single response
Furnished Items And Quantity
1 lever
NSN
4820-01-239-0177
Part Number
C3458PL4158-45T70PSI
Description
Valve,safety Relief
CAGE
35795

A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes valve (1), relief, pressure and temperature.

Part C3458PL4158-45T70PSI NSN 4820-01-239-0177

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05488
FIIG:
A046B0
Concept No.:
1
App. Key:
AP
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:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
127220
UFC:
64490
LTL:
77.5
LCL:
--
WCC:
594
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 8481400000
  • SITC: 74740
  • End Use: Industrial machines, other
  • NAICS: 332911
  • USDA: 1

Freight Class: Safety or relief valves

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