Part Location Diagram of CAC-437-2 DeWALT VALVE CHECK 1/2NPT X
See part A-31 in the diagram
( Grid squares measure 1x1 inch )

VALVE CHECK 1/2NPT X CAC-437-2

Manufactured by:
DeWALT
ERP Number:
ERP18991621
Part Number:
CAC-437-2
Original Equipment Manufacturer ?
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Easy 

15 - 30 mins 

(7 rated repairs) ?

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Product Description

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This is an OEM authorized part designed for use with Porter Cable and DeVilbiss air compressors. The purpose of a check valve is to let the pressurized air flow into the tank and prevent it from flowing back into the pump. When replacing this part make sure to unplug the air compressor and release the air from the tank. It provides an identical replacement for a missing or a faulty component which is made of durable metal and is sold individually. Please make sure to refer to the appropriate diagrams of your model for the correct location and application of this part.

Troubleshooting

This part works with the following brands:
  • Craftsman
  • DeVilbiss
  • Porter Cable
This part works with the following products:
  • Compressor
Part# CAC-437-2 replaces these:
CAC-437-2,

Customer Part Reviews

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4.0
Average Rating (out of 5):
★★★★★
★★★★★
(7 Reviews)
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Questions & Answers

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Customer Repair Instructions

All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.

Easy 

15 - 30 mins 

(7 rated repairs) ?
  • 1
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Sorry, we couldn't find any existing installation instruction that matched.

When the compressor was at max pressure and shut off, the air pressure would leak out.

Burket from Franklin, North Carolina

3 of 3 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Wrench (Adjustable)
Parts Used:
CAC-437-2
Removed the tube from the defective check valve. Then removed the check valve. Installed the new check valve, then installed the tube on the new check valve
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The check valve was bad, Would not close.

John from Moss Point, Mississippi

1 person found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Socket set, Wrench set
Parts Used:
CAC-437-2
Disconnect the power to the compressor.
De-pressure the air tank, utilizing the pressure relief valve.
Remove the connecting tubing using the correct open end wrench.
Removed the old check valve,using a socket wrench
And then install the new Valve and replace the remaining components in reverse order.
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Check valve came apart.

Marvin from MONROVIA, Indiana

0 of 1 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
15 - 30 mins
Tools:
Socket set, Wrench (Adjustable)
Parts Used:
CAC-437-2
Removed the old check valve and put the new valve in. Connect the line from the compressor and that was it.
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Check valve failed.

David from VOWINCKEL, Pennsylvania

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Socket set, Wrench set
Parts Used:
CAC-437-2
Removed check valve and replaced valve.
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Check valve failed.

Fred from Spokane, Washington

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Wrench (Adjustable)
Parts Used:
CAC-437-2
Removed old check valve, installed new one. Machine works as it should.
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Replace check valve

KENNETH from EAST BOOTHBAY, Maine

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Nutdriver, Wrench (Adjustable), Wrench set
Parts Used:
CAC-437-2
Removed plastic safety cover
Removed fitting from compressor head and tank.
Unscrewed broken check valve.
Reversed procedure with new check valve installed,
Note: Replacing the plastic housing takes the most time.
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I found a compressor, complete minus the parts you guys were able to locate for me, using some older diagrams for a Devilbiss compressor.. good job guys

Larry from SELMA, Alabama

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Socket set, Wrench set
I was looking for a vertical compressor, this would take less room in my shop verse my horizontal compressor, I found one in a scrap metal business, that was bought for scrap price, it was missing several parts, I was able to purchase from eReplacementParts,the parts for less than $50.00, and after paying $45.00 for the Devilbiss compres sor I had $95.00 total for my unit, it saved me about $1200.00
So ,do it yourself, Thanks again eReplacementParts, and the Tech. Was great to work with.
Larry from Valley Grande, Alabama
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  • 1

Model Cross Reference

This part works with the following models:
ERP Number: ERP18991621
Manufacturer Part Number: CAC-437-2
Brand Model Number Description
DeVilbiss 35E20AD-1 Compressor - 3.5 HP Oil Lube Portable Air Compressor
DeVilbiss 5E20AD Compressor - Oil Lubricated Air Compressor
DeVilbiss 5E20AD-1 Compressor - 5 HP Oil Lube Portable Air Compressor
DeVilbiss 5E30AD Compressor - 5HP Oil Lube Portable Air Compressor
DeVilbiss 5E60VAD Compressor - 5 HP Single Stage Stationary Air Compressor
DeVilbiss 5E60VAD-1 Compressor - 5 HP Single Stage Stationary Air Compressor
DeVilbiss 6E60VAD Compressor - 6 HP Single Stage Stationary Air Compressor
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