Model: 622B-4-3/4-1

Safety Relief Valve

Properties:

Thread Direction

Right-hand all ends

Flow Control Device

Poppet

Maximum Operating Temp

-67.0 degrees fahrenheit 1st response

Maximum Operating Temp

200.0 degrees fahrenheit 2nd response

Connection Style

G9 plain, optional en (pipe) all ends

Valve Operation Method

Automatic

Connection Type

Threaded internal pipe all ends

Adjustable Pressure Range

+115.0 to 250.0 pounds per square inch

Maximum Operating Pressure

3600.0 pounds per square inch single response

Thread Size

0.750 inches all ends

Material

Aluminum alloy body

Media For Which Designed

Water, fresh 2nd response

Media For Which Designed

Oil 1st response

Style Designator

C1 angle

Thread Series Designator

Npt all ends

NSN

4820-01-225-5798

Part Number

622B-4-3/4-1

Description

Valve,safety Relief

CAGE

09990

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 622B-4-3/4-1 NSN 4820-01-225-5798

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

05488

FIIG:

A046B0

Concept No.:

App. Key:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

127220

UFC:

64490

LTL:

77.5

LCL:

WCC:

594

TCC:

SHC:

ACC:

Trailers/Vehicles

Pricing & Availability Check

Submit this form for stock availability and pricing.

How to Order

Ordering from buyaircraftparts.com

If you would like to order this safety relief valve (NSN 4820-01-225-5798) please submit the pricing and availability form above to receive an up to date quote by email. If you agree to the pricing and terms you can e-sign your order online!

We are pleased to have the opportunity to serve you.

Have a Question

Hours:	08:00-18:00 Eastern Standard Time
Phone:	+1 470-231-0824
Email:	Contact Form »

Schedule B and Export

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

Freight Class: Safety or relief valves