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MODELS 5300P

AIR FILTER REGULATOR

SECTION I

These regulators are designed for air service only.  Maximum allowable inlet pressure is 290 psi. Operating 
temperatures are -20° to 180° F.  The 5300P has low capacity internal relief which provides very limited down 
stream over pressure protection.  Note: Non-relieving version does not provide internal relief.  To avoid exceeding 
outlet pressure limits in service, a pressure-relieving or pressure-limiting device should be provided.  

I.  DESCRIPTION AND SCOPE

II. INSTALLATION

SECTION II

INSTALLATION, OPERATION & MAINTENANCE MANUAL (IOM)     

IOM-5300P

              

 04-16

Install the regulator as close as possible to the instrument or tool it is to service.  Clean all pipelines to remove dirt 

and scale prior to installation.  The words "IN" and "OUT" are cast into the body to indicate the direction of flow.  For 
best filter drainage, orient the drain valve so that it is at the lowest point on the drip well housing.  The exhaust port 
should be kept free and unplugged. Position the regulator so the vent is at the lowest point possible, or provide 
additional protection to prevent contaminants from entering the regulator. Rotating the bonnet relative to the body may 
change the vent hole orientation. Exhaust may be remotely vented by installing tubing to the 1/8" NPT port. Apply pipe 
compound or sealing tape to the male pipe threads prior to installing regulator. Use caution to prevent the sealant 
from getting inside the regulator.

ISO Registered Company

III. PRINCIPLE OF OPERATION

SECTION III

Prior to turning on supply air, back off adjusting screw until there is no compression of the range spring. After turning 

supply pressure on, turn the adjusting screw clockwise to increase outlet pressure.  Tighten locknut to maintain 
desired pressure setting.

IV. MAINTENANCE

SECTION IV

 

1. 

To remove condensate, slowly open drain valve and bleed accumulated liquid.

 

2. 

To clean filter element

 

 

a. 

Shut off supply air.

  b. 

Drain 

condensate.

 

 

c. 

Remove four corner bolts from bottom of unit.

 

 

d. 

Remove drip well housing and filter.

 

 

e. 

Clean parts and reassemble in reverse order.

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