Parker SmogHog SHM-C, Owner'S Manual

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1.  Important Notice

This manual contains important safety information and precau-
tionary measures. It is impossible to list all potential hazards 
associated with every collection system in each application. 
Proper use of the equipment should be discussed with Parker. 
Operating personnel should be aware of, and adhere to, the most 
stringent safety procedures.

2.  Introduction

Thank you for selecting Parker oil mist collection equipment 
to assist you in your commitment to a clean and safe envi-
ronment. We trust that in purchasing our product, you have 
recognized our commitment to offering air cleaning equipment 
which is engineered to each oil mist collection need and manu-
factured to the highest standards. If at any time you have a ques-
tion about oil mist collection, please do not hesitate to call Parker 
customer service. 

The purpose of this manual is to provide the proper operating 
and maintenance guidelines for the SHM system supplied 
by Parker. As you review this manual, refer to Figure 1 for 
assistance in identifying oil mist collector parts.

The SHM oil mist collector has been designed to provide you 
with exceptional oil mist collection capabilities and reliable, long 
term field operation. We suggest that you thoroughly review this 
manual prior to installation and startup of your system.

If your SHM has optional equipment included as part of your 
order, specific operations and maintenance manuals for these 
accessory systems will be included. If applicable, site specific 
installation and other drawings will also be included.

If you require assistance in the installation, startup, operation, 
maintenance, or troubleshooting of your air cleaning equipment, 
contact your local Parker sales representative.

2.1 SMOG-HOG Nomenclature

SMOG-HOG oil mist air cleaners are available in a variety of 
configurations and sizes. The model string for each given unit 
represents the base configuration. The model number completely 
identifies the design and can be found on the unit nameplate. 
SHM models are defined according to descriptions listed below 
(see bold):

 SHM-XXX 
                 Filter type
               Quantity of filter modules deep
            Quantity of filter modules wide 
  C  - PEACH Saturated Depth  
  F  - Fiberglass Bag Filter

Models  SHM-11C, SHM-12C, SHM-21C, SHM-31C, 

SHM-22C, & SHM-32C

Models  SHM-11F, SHM-12F, SHM-21F, SHM-31F,  

SHM-22F, SHM-32F

The SMOG-HOG is a free standing, self contained, multistage, 
oil mist filtering unit with inlet sump or direct mount flange, 
mechanical prefilter, primary filter, blower cabinet, and controls. 
Optional after filters are available for third stage filtration.

2.2 Equipment Description

This section will briefly describe each component in the SHM 
and its role in the system’s operation.

Inlet Sump

Most units will include an inlet sump with multiple 10˝ inlets 
where all incoming dirty air will enter. The sump provides an 
expanded volume allowing contaminant to drop out of the airst-
eam reducing loading on the filters.  A 1-1/2” FNPT coupling is 
included at the peak of a sloped bottom allowing the collected 
contaminant to be reclaimed or drained. 

Filter Cabinet

Each unit has a filter access door that provides access to both 
the prefilter and primary filter for service and replacement. The 
mesh prefilter rests on tracks near the bottom of the cabinet. 
The PEACH coalescing filter option is mounted on a removable 
cassette secured by a cam bar mechanism. The fiberglass bag 
option uses a hanging rod system.

Filter Elements

Stage 1: Mist-Stop fine fiber aluminum mesh
Stage 2: Primary coalescer featuring PEACH Saturated Depth 
Coalescing Technology - or - fiberglass bag

Blower Cabinet

Most units will have a blower cabinet where the motorized 
impeller style blower is housed, as well as the electrical controls.

2.3  Principal Operation

The purpose of the SHM is to collect fugitive mist generated 
by various industrial processes during operation. The collected 
contaminate is drained off of the coalescing filters into the sump 
below or directly back into the machine. The sump is attached 
to a drain system of the customers choice for recycling or dis-
posal, or emptied manually at regular intervals.

Do not let the oil level in the sump reach the height 
of the air inlet opening.

Differential Pressure

Differential pressure, also referred to as pressure drop (Δ P), is 
an indication of the resistance to airflow across the filter ele-
ments. Differential pressure is commonly measured in inches of 
water column (W.C.) or Pascals (Pa). It is normal for the differ-
ential pressure to increase as the collector operates. Any sud-
den increase or decrease in differential pressure may indicate 
a problem in the collector (blinded filters, leaks or other cause) 
that requires immediate attention. See trouble shooting guide in 
Section 6 for assistance.

The operating differential pressure displayed on the unit 
will typically run between 0.5 to 4 in. W.C. (124 to 995 Pa) for 
a Fiberglass Bag filter, and between 0.75 to 4 in. W.C. (187 to 
995 Pa) for a Coalescing Cartridge filter. The expected pressure 
range for the after-filters is 0.5 to 3.0 in. W.C. (124 to 746 Pa).

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