Model: 20045C91M

Safety Relief Valve

Special Features:

Cast body with integral flanges iaw 20042 -150 lbs, drain iaw ms16142 1/2 tube o.D.; ven iaw ms16142 1/2 tube o.D.

Properties:

Flow Control Device

Disk

Bonnet Type

Inside spring

Bonnet Attachment Method

Bolted

Disk Loading Method

Spring

Renewable Seat Ring Type

Pressed-in

Maximum Operating Temp

150.0 degrees fahrenheit single response

Valve Operation Method

Automatic

Flange Shape

Round all ends

Connection Type

Flange all ends

Features Provided

Manual override

Valve Size

3.000 inches

Maximum Operating Pressure

150.0 pounds per square inch single response

First Connection Face To Centerline Distance

5.000 inches

Second Connection Face To Centerline Distance

6.000 inches

Flange Face Design

Plain all ends

Part Name Assigned By Controlling Agency

3" relief valve, type 1792

Material

Copper alloy 922 body

Material

Nickel alloy flow control device

Furnished Items And Quantity

2 gasket

Specification Data

81349 - mil-v-20065 government specification and 81349 - mil-f-20042 government specification

Nondefinitive Specification/std Data

A-2 type and c class and 150 class

NSN

4820-01-530-7072

Part Number

20045C91M

Description

Valve,safety Relief

CAGE

15187

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 20045C91M NSN 4820-01-530-7072

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:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

Item Weight:

Item Dim:

OPI

SPI No.

SPI Rev.

SPC Mkg.

LVL A

LVL B

OPI:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

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

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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