Model: 655A

Fluid Pressure Regulating Valve

Properties:

Body Material
Iron, cast, astm a126-61t, class b
First End Flange Outside Diameter
6.500 inches
Body Style
Straight thru
Stem Material
Steel, corrosion resisting
Media For Which Designed
Steam and water, oil or gas
First End Connection Type
Raised face flange
First End Style Designator
Raised
First End Raised Face Height
0.062 inches
First End Raised Face Diameter
4.188 inches
First End Flange Shape Style
Round w/ bolt holes
First End Flange Thickness
0.813 inches
First End Bolt Hole Quantity
4
First End Bolt Hole Diameter
0.750 inches
First End Bolt Circle Diameter
5.000 inches
Second End Relationship With First End
Identical
Seat Material
Steel, federal standard 66, aisi 316/sae 30316
Face To Face Distance
10.500 inches
Packing Material
Plastic, tetrafluoroethylene
Flow Control Device
Disk, plug type
Flow Control Device Material
Steel, corrosion resisting
End Connection Quantity
2
Renewable Seat Ring Type
Threaded
Regulation Type
Automatic single stage
Valve Stem Design
Double seat
Valve Loading Method
Spring
Remote Actuation Method
Diaphragm
Maximum Inlet Pressure Rating
250.0 pounds per square inch
Outlet Pressure Setting
135.0 pounds per square inch
Filter
Not included
NSN
4820-00-405-1691
Part Number
655A
Description
Valve,regulating,fluid Pressure
CAGE
22508

A valve designed to automatically maintain within close limits a predetermined outlet pressure which may be adjustable within a specified range regardless of the higher fluctuating or constant inlet pressure. It is designed for use with compressed gas(es) and various liquids and may include gauges. It may be inline or cartridge (manifold) design. Excludes regulator, pressure, medical gas administration apparatus; regulator, oxygen, barometric continuous flow; regulator, oxygen demand; regulator, oxygen diluter demand; and valve(1), fluid pressure regulating, aircraft.

Part 655A NSN 4820-00-405-1691

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
27565
FIIG:
A21100
Concept No.:
1
App. Key:
D
Cond. Code:
2
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

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Schedule B and Export
  • Schedule B: 8481809015
  • SITC: 74780
  • End Use: Industrial machines, other
  • NAICS: 332911
  • USDA: 1

Freight Class: Regulator valves, self-operating, for controlling variables such as temperature, pressure, flow and liquid level

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