Model: FF2503B

Safety Relief Valve

Properties:

Flow Control Device
Disk
Bonnet Type
Inside spring
Bonnet Attachment Method
Bolted
Disk Loading Method
Spring
Renewable Seat Ring Type
Threaded
Bolt Hole Quantity
4 1st end
Bolt Hole Quantity
3 2nd end
Maximum Operating Temp
650.0 degrees fahrenheit single response
Valve Operation Method
Automatic or manual
Flange Shape
Round with holes 1st end
Flange Shape
Round with holes 2nd end
Connection Type
Flange 2nd end
Connection Type
Flange 1st end
Features Provided
Valve stem lock shield and pressure tight outlet side
Adjustable Pressure Range
+276.0/+450.0 pounds per square inch
Maximum Operating Pressure
300.0 pounds per square inch single response
Outside Diameter
3.562 inches 2nd end
Outside Diameter
4.000 inches 1st end
Thickness
0.375 inches 2nd end
Thickness
0.562 inches 1st end
First Connection Face To Centerline Distance
3.000 inches
Bolt Hole Diameter
0.562 inches 1st end
Bolt Hole Diameter
0.562 inches 2nd end
Second Connection Face To Centerline Distance
3.000 inches
Bolt Circle Diameter
2.438 inches 2nd end
Bolt Circle Diameter
2.875 inches 1st end
Flange Face Design
Plain 1st end
Flange Face Design
Plain 2nd end
Material
Nickel alloy seat
Material
Nickel alloy stem
Material
Nickel alloy flow control device
Material
Steel uns j03008 body
Material Specification
Mil-s-15083 military specification single material response body
Media For Which Designed
Oil single response
Style Designator
Angle flanged ends
NSN
4820-00-142-1547
Part Number
FF2503B
Description
Valve,safety Relief
CAGE
01343

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 FF2503B NSN 4820-00-142-1547

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:
U
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
127220
UFC:
64490
LTL:
77.5
LCL:
77.5
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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