ENGINEERING STANDARDS
Rosedale Products Inc.
3730 west liberty Road
Ann Arbor, MI 48103
IOM
7_4_27 Model CR8.DOC
N:\IOM\
Issue Date: 01MAY01
Revision: D
Revision Date: 24APR2015
Specification No.
7.4.27
Page 3 of 14
INSTALLATION, OPERATION AND MAINTENANCE MANUAL
Rosedale Engineering Standards are the property of Rosedale Products, Inc. A Rosedale Standard or copy thereof shall no be distributed (except with express approval of
Rosedale Products, Inc.) to any individual or firm beyond the intended recipient firm or individual. Firms of individuals acting contrary to the above may be subject to
suit, ineligibility for continued or future employment, or removal from Rosedale’s “Approved Manufacturers and Specialty Contractors List”.
CAUTION:
As with all non-metallic flanges, extreme care should be taken when tightening the flange
bolts. The maximum tightening torque is 30
ft-lbs
. This is an industry standard for materials such as
CPVC, PVC, PVDF and Polypropylene.
Flange Installation Tips:
1. Make sure that all the bolt holes of the mating flanges match up. It is not
advisable to twist the flange and pipe to achieve this.
2. Use flat washers under bolt heads and nuts.
3. Insert all bolts (Lubricate bolts).
4. Make sure that the faces of the flanges mate snuggly prior to tightening of the
bolts.
5. The bolts on the plastic flanges should be tightened by pulling down the nuts
diametrically opposite each other using a torque wrench. Complete tightening should
be accomplished in stages. The final torque values are 20-30
ft-lbs
. Uniform stress
across the flange will prevent leaky gaskets.
6. The adjacent piping must be supported or anchored to eliminate excessive stress
on the flange joint.
For side outlet configurations, an optional Adjustable Tripod Leg Assembly or PP mounting base is
available for support of the filter unit. See spare parts list for ordering information.
There are two 1/4" NPT ports on the shell and one 1/4" NPT port on the cover of the Model CR8 Filter
unit. These ports can remain plugged or used for pressure gauges, sample ports, vents or special fittings
as your application requires.
Some installations require electrical grounding of all equipment, be sure to provide adequate grounding
where necessary.
After completing installation be sure to double check connections for integrity. Your Model CR8 Filter
unit has passed a stringent quality control inspection before leaving the factory.
You are now ready to install the filter basket and bag. Remove the cover by turning the cover counter-
clockwise. Remove the bag hold-down device. Remove desiccant bag and other packing materials.
Insert bag into the bag basket making sure filter bag ring is firmly seated inside the basket sealing ring
inside the vessel. For best results, be sure filter bag is installed fully extended to the bottom of the
basket. Install bag hold-down device and verify the hold-down is adjusted correctly (see diagram).
