Model: 20051E51SS

Safety Relief Valve

Properties:

Flow Control Device

Disk

Bonnet Type

Exposed spring

Bonnet Attachment Method

Bolted

Disk Loading Method

Spring

Valve Discharge Flow Rate

185.0 pounds per hour

Renewable Seat Ring Type

Welded

Bolt Hole Quantity

4 all ends

Maximum Operating Temp

775.0 degrees fahrenheit single response

Valve Operation Method

Automatic or manual

Flange Shape

Round with holes all ends

Connection Type

Flange all ends

Adjustable Pressure Range

+10.0/+30.0 pounds per square inch

Maximum Operating Pressure

150.0 pounds per square inch single response

Outside Diameter

4.500 inches all ends

Thickness

0.438 inches all ends

First Connection Face To Centerline Distance

3.250 inches

Bolt Hole Diameter

0.562 inches all ends

Second Connection Face To Centerline Distance

3.000 inches

Bolt Circle Diameter

3.125 inches all ends

Flange Face Design

Raised with curve and radius all ends

Material

Steel body

Media For Which Designed

Steam single response

Style Designator

Angle flanged ends

Nondefinitive Specification/std Data

1 type and d composition

NSN

4820-00-289-3830

Part Number

20051E51SS

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 20051E51SS NSN 4820-00-289-3830

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 4820-00-289-3830) 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