Norman 4300 Series User manual

9850 S. Industrial Drive • Bridgeview, Illinois 60455
Phone: [phone] Fax: [phone]
www.normanfilters.com • [email protected]om
Comprehensive In-line Series Filters
Product Service Manual
PSM04-20 Rev -, Effective Date: 08/27/20

PSM04-20 Rev -, Effective Date: 08/27/20
Viton®, Krytox®are registered trademarks of Dupont Corp.
Norman Filter Company
9850 S. Industrial Drive • Bridgeview, Illinois 60455
Phone: [phone] • Fax: [phone]
www.normanfilters.com • [email protected]om
Page1
Table of Contents
4300/4400 Series Filter Product Service Manual .....................................................................................2-7
30K Series Filter Product Service Manual...............................................................................................8-13
4700 with Port 11, 11J, 22, 33 Product Service Manual.......................................................................14-18
4700 with Port 250, 375, 562 Product Service Manual........................................................................19-23

PSM04-20 Rev -, Effective Date: 08/27/20
Viton®, Krytox®are registered trademarks of Dupont Corp.
Norman Filter Company
9850 S. Industrial Drive • Bridgeview, Illinois 60455
Phone: [phone] • Fax: [phone]
www.normanfilters.com • [email protected]om
Page2
9850 S. Industrial Drive • Bridgeview, Illinois 60455
Phone: [phone] Fax: [phone]
www.normanfilters.com •[email protected]om
4300/4400 Series Filters
PSM04-20 Rev -, Effective Date: 08/27/20

PSM04-20 Rev -, Effective Date: 08/27/20
Viton®, Krytox®are registered trademarks of Dupont Corp.
Norman Filter Company
9850 S. Industrial Drive • Bridgeview, Illinois 60455
Phone: [phone] • Fax: [phone]
www.normanfilters.com • [email protected]om
Page3
1.0a FILTER HOUSING COMPONENTS
1.1a Filter Housing Case
1.2a Filter Housing Plug
1.3a Filter Housing Plug O-ring
1.4a Filter Element
1.5a Filter Element O-ring
2.0a 4300/4400 SERIES FILTER DISASSEMBLY
2.1a Be sure to follow all safety rules, such as wearing protective eyewear and gloves.
2.2a Disconnect the filter assembly from the system supply line AFTER depressurization.
2.3a Secure filter assembly (case portion) in vise using flat area at the end of the cylinder.
2.4a Use a suitable wrench to unscrew the Filter Housing Plug from the Filter Housing Case,
using the flat area at the other end of the cylinder as the connection point for the wrench.
Filter Housing Plug will have the Filter Element attached to it. Remove with it with caution
and set the Filter Housing Plug and Filter Element assembly aside.
NOTE: Scratches, punctures, tears or otherwise damaging the filter element media will require
replacement of the element.
2.6a Remove Filter Element O-ring and discard.
2.7a Remove Filter Housing Plug O-ring and then discard.
2.8a Glass Fiber and paper elements are not reusable and must be replaced.
WARNING!!
COMPLETELY DEPRESSURIZE SYSTEM BEFORE
CONNECTING/DISCONNECTING FILTER ASSEMBLY

PSM04-20 Rev -, Effective Date: 08/27/20
Viton®, Krytox®are registered trademarks of Dupont Corp.
Norman Filter Company
9850 S. Industrial Drive • Bridgeview, Illinois 60455
Phone: [phone] • Fax: [phone]
www.normanfilters.com • [email protected]om
Page4
3.0a 4300/4400 SERIES FILTER ELEMENT CLEANING
3.1a Stainless steel Filter Elements may be cleaned as follows:
3.2a Remove rough external dirt in a separate container with cleaning fluid. Acceptable
cleaning fluids can be but are not limited to acetone or mineral spirits.
3.3a Soak the filter for thirty minutes in unsoiled, high-quality cleaning fluid.
3.4a Following the soak, blow through the element (150 psi max.) from inside to outside with
clean compressed air or similar clean gas.
3.5a Remove any remaining water particles by dipping the filter in isopropyl alcohol.
3.6a Inspect element for uniform pleats. If there is any visible damage, the Filter Element is a
non-conforming product and requires replacement.
4.0a 4300/4400 FILTER HOUSING PLUG CLEANING
4.1a Assess thread and seal areas for physical damage, inspecting areas in full. The threads
should look shiny and smooth with no denting or galled areas and the seal area should
have no scratches or dents. If there is any physical damage to either area the Filter
Housing Plug should be replaced.
4.2a Clean using an acceptable cleaning fluid and a fine bristle brush. Acceptable cleaning
fluids can be but are not limited to acetone or mineral spirits. Move the brush in a
counterclockwise direction from the seal area to the end of the thread run. This is
repeated until all lubricants and fluids that entrap debris to the thread and seal area
surfaces are removed. With a clean air source, blow off any debris.
4.3a Re-inspect the threaded and seal areas again, as above, this time looking for debris as
well. If the inspection identifies debris in the threaded area, repeat the cleaning above.
4.5a Visually inspect for the presence of a flow arrow marking and heat numbers on the Filter
Housing Plug. If either is missing the part is a non-conforming product.
5.0a 4300/4400 FILTER HOUSING CASE CLEANING
5.1a Assess thread and seal areas. The threads should look shiny and smooth with no denting
or galled areas and the seal area should have no scratches or dents. If there is any
physical damage to either area the Filter Housing Case should be replaced.
5.2a Clean using an acceptable cleaning fluid and a fine bristle brush. Acceptable cleaning
fluids can be but are not limited to acetone or mineral spirits. Move the brush in a
counterclockwise direction from the seal area to the end of the thread run. This is
repeated until all lubricants and fluids that entrap debris to the thread and seal area
surfaces are removed. With a clean air source, blow off any debris.
5.3a Re-inspect the threaded and seal areas again, as above, this time looking for debris as
well. If the inspection identifies debris in the threaded area, repeat the cleaning above.
5.4a Visually inspect Filter Housing Case threads. If there is any visible damage, the part is a
non-conforming product.
5.5a Visually inspect for the presence of a flow arrow marking and heat numbers on Filter
Housing Case. If either is missing the assembly is a non-conforming product.

PSM04-20 Rev -, Effective Date: 08/27/20
Viton®, Krytox®are registered trademarks of Dupont Corp.
Norman Filter Company
9850 S. Industrial Drive • Bridgeview, Illinois 60455
Phone: [phone] • Fax: [phone]
www.normanfilters.com • [email protected]om
Page5
6.0a 4300/4400 SERIES FILTER ASSEMBLY
6.1a Install new O-ring on Filter Element. If PTFE O-ring, refer to section 7.0a for guidance.
6.2a Install new O-ring on Filter Housing Plug. If PTFE O-Ring, refer to section 7.0a for guidance.
6.3a Using proper lubricant selected from table 6.6a, apply lubricant to Filter Element O-ring.
6.4a Using proper lubricant selected from table 6.6a, apply lubricant to Filter Housing Plug O-
ring.
6.5a Using proper lubricant selected from table 6.6a, apply lubricant to Filter Housing Plug
threading.
6.6a
NOTE: Lubricate stainless steel thread with Halocarbon 28i Grease only. Do not use silicone lubricants
on stainless steel threads. If the housing is stainless steel and EPR (E) O-rings are used, special care must
be taken not to mix the applicators used for silicone & Halocarbon 28i lubricants. The mixed silicone
lubricants can damage the stainless-steel threads. If the housing is aluminum, lubricate the O-ring and
thread with silicone. If the housing is stainless steel, install the O-ring to the head O-ring groove, then
lubricate the seal by carefully using a fine point brush to apply the silicone lubricant on all surfaces of
the O-Ring.
6.7a Secure Filter Housing Plug in vise. Begin threading Filter Element into Filter Housing Plug
by hand, and then use a proper wrench to tighten until metal seats on metal (bottoms
out.) Remove from vise and set aside.
6.8a Secure Filter Housing Case in vise. Begin threading Filter Housing Plug & Filter Element
assembly into Filter Housing Case by hand until tight.
6.9a Using proper torque wrench, torque to 35 ft-lb. If Using PFTE O-rings, refer to section 5.0
for proper torque levels.
Intentionally Left Blank
Housing Material
O-ring Material
Lubricant
Stainless
L, N, M, H, K, MN
Halocarbon
Aluminum
L, N, M, H, K, MN
Petroleum Jelly
Stainless/Aluminum
E
Silicone

PSM04-20 Rev -, Effective Date: 08/27/20
Viton®, Krytox®are registered trademarks of Dupont Corp.
Norman Filter Company
9850 S. Industrial Drive • Bridgeview, Illinois 60455
Phone: [phone] • Fax: [phone]
www.normanfilters.com • [email protected]om
Page6
7.0a 4300/4400 IN-LINE FILTER ASSEMBLY - PTFE O-RING SPECIFIC INSTRUCTIONS
7.1a When installing PTFE O-rings, use a PTFE rod to avoid tearing or deforming PTFE O-rings.
A PFTE rod is a cylindrical rod of PFTE material that will allow for manipulation of PTFE
rings while mitigating risk of damage.
7.2a When installing PTFE O-Rings, place O-ring on the threads at a 45-degree angle; with one
end at the base of the threads and the other at the top of the threads. Hold the PTFE rod
in both hands and apply firm pressure with the middle of the rod starting at the section
of O-ring at the top of the plug threads. Rock the PTFE rod back and forth to move O-ring
around the threads. Slowly lower the O-ring to by applying light force with the end of the
PTFE rod, running it along the surface of the O-ring in a clockwise direction.
NOTE: It is important to note that PFTE O-rings must be torqued slowly. Only turn 1/4 of one turn at a
time and allow for 15-20 seconds in between each 1/4 turn. PFTE O-rings require extra time to form
into the proper shape as they are assembled. Refer to table below for proper case & plug torque levels.
1/4”
Part# Prefix: 43_ _ _
3/8”
43 _ _ _
1/2”
43 _ _ _
3/4”
43 _ _ _
1”
43 _ _ _
1 1
1 2
1 3
1 5
1 6
4 1
2 2
2 3
2 5
2 6
6 1
4 2
4 3
3 5
4 6
8 1
5 2
5 3
4 5
5 6
1 0 1
6 2
6 3
5 5
6 6
1 2 1
7 2
7 3
6 5
7 6
1 3 1
8 2
8 3
7 5
8 6
1 4 1
9 2
9 3
8 5
9 6
1 7 1
1 0 2
1 0 3
9 5
1 0 6
1 1 2
1 1 3
1 0 5
1 1 6
1 2 2
1 2 3
1 1 5
1 2 6
1 3 2
1 3 3
1 2 5
1 3 6
1 4 2
1 4 3
1 4 5
1 4 6
1 5 2
1 5 3
1 5 5
1 5 6
1 6 2
1 6 3
1 6 5
1 6 6
1 7 3
1 7 5
1 7 6
30-45 ft-lb
30-45 ft-lb
45-60 ft-lb
60-80 ft-lb
80-90 ft-lb

PSM04-20 Rev -, Effective Date: 08/27/20
Viton®, Krytox®are registered trademarks of Dupont Corp.
Norman Filter Company
9850 S. Industrial Drive • Bridgeview, Illinois 60455
Phone: [phone] • Fax: [phone]
www.normanfilters.com • [email protected]om
Page7
8.0a OXYGEN USE ELEMENTS, HOUSINGS, AND ASSEMBLIES
8.1a All components manufactured are cleaned per Norman Filter Company’s standard
cleaning processes. Precision cleaned and/or oxygen gas or liquid compatible cleaning is
performed only upon request and highly recommended. It is the end user’s responsibility
to specify cleaning specifications and levels.
8.2a Oxygen compatible lubricants are highly recommended and are used within Norman Filter
Company’s assembly process when oxygen environments are specified by the customer
(i.e. Krytox®)
NOTE: Filter element life is based upon cleaning cycles and pressure drop. The estimated life of the
element is 10 to 15 cleaning cycles. If the element has exceeded this level, discard and replace with a
new element. Acceptable cleaning fluids can be but are not limited to acetone or mineral spirits.
Halocarbon 28i grease is the recommended lubricant. Other acceptable lubricants include petroleum
jelly or silicone. Refer to table on page to when selecting lubrication. Extreme caution should be used
when using dry lubricants, since our threads are single point, precision threads and dry lubricants can
disrupt clearances.
Intentionally Left Blank

PSM04-20 Rev -, Effective Date: 08/27/20
Viton®, Krytox®are registered trademarks of Dupont Corp.
Norman Filter Company
9850 S. Industrial Drive • Bridgeview, Illinois 60455
Phone: [phone] • Fax: [phone]
www.normanfilters.com • [email protected]om
Page8
Norman Filter Company
9850 S. Industrial Drive • Bridgeview, Illinois 60455
Phone: [phone] • Fax: [phone]
www.normanfilters.com • [email protected]om
30K Series Filter
Product Service Manual
PSM04-20 Rev -, Effective Date: 08/27/20

PSM04-20 Rev -, Effective Date: 08/27/20
Viton®, Krytox®are registered trademarks of Dupont Corp.
Norman Filter Company
9850 S. Industrial Drive • Bridgeview, Illinois 60455
Phone: [phone] • Fax: [phone]
www.normanfilters.com • [email protected]om
Page9
WARNING!!
COMPLETELY DEPRESSURIZE SYSTEM BEFORE
CONNECTING/DISCONNECTING FILTER ASSEMBLY
1.0b 30K FILTER SERIES HOUSING COMPONENTS
1.1b Filter Housing Case
1.2b Filter Housing Plug
1.3b Filter Housing Plug O-ring
1.4b Filter Element
1.5b Filter Element O-ring
1.6b Filter Housing Sleeve

PSM04-20 Rev -, Effective Date: 08/27/20
Viton®, Krytox®are registered trademarks of Dupont Corp.
Norman Filter Company
9850 S. Industrial Drive • Bridgeview, Illinois 60455
Phone: [phone] • Fax: [phone]
www.normanfilters.com • [email protected]om
Page10
2.0b 30K FILTER SERIES HOUSING DISASSEMBLY
2.1b Be sure to follow all safety rules, such as wearing protective eyewear and gloves.
2.2b Disconnect the filter assembly from the system supply line AFTER depressurization.
2.3b Secure filter assembly (case portion) in vise using flat area at the end of the cylinder.
2.4b Use a suitable wrench to unscrew the Filter Housing Plug from the Filter Housing Case.
NOTE: Exercise caution when removing element to prevent damage to pleated media. Scratches,
punctures, tears or otherwise damaging the filter element media will require replacement of the
element.
2.5b Remove Filter Housing Sleeve and Filter Housing Element assembly and set it aside.
2.6b Remove the Filter Housing Case from the vise and set it aside.
2.7b Unscrew Filter Element from Filter Housing Sleeve by hand and set both aside. Be careful
not to damage the pleated filter media. Scratches, punctures, tears or otherwise
damaging the element will require replacement.
2.7b Remove Filter Element O-ring and discard.
2.8b Remove Filter Housing Sleeve O-ring and then discard.
2.9b Glass Fiber and paper elements are not reusable and must be replaced.
3.0b 30K FILTER SERIES HOUSING SLEEVE CLEANING
3.1b Assess the seal area and threads for physical damage, inspecting full areas. The sleeve
threads should look shiny and smooth with no denting or galling, and the seal area should
have no scratches or dents. If there is any physical damage the sleeve should be replaced.
3.2b Clean using an acceptable cleaning fluid and a fine bristle brush. Acceptable cleaning
fluids can be but are not limited to acetone or mineral spirits. Move the brush in a
counterclockwise direction from the seal area to the end of the thread run. Repeat until
all lubricants and fluids that entrap debris to seal area or thread surfaces are removed.
With a clean air source, blow off any debris.
3.3b Re-inspect the seal area and threads again.If the inspection identifies debris in the seal
area, repeat the cleaning above.
3.4b Visually inspect for presence of heat numbers Filter Housing Sleeve. If heat numbers are
missing the assembly is a non-conforming product.
4.0b 30L FILTER SERIES HOUSING CASE CLEANING
4.1b Assess thread and seal areas. The threads should look shiny and smooth with no denting
or galled areas and the seal area should have no scratches or dents. If there is any
physical damage to either area the case should be replaced.
4.2b Clean using an acceptable cleaning fluid and a fine bristle brush. Acceptable cleaning
fluids can be but are not limited to acetone or mineral spirits. Move the brush in a
counterclockwise direction from the seal area to the end of the thread run. This is
repeated until all lubricants and fluids that entrap debris to the thread and seal area
surfaces are removed. With a clean air source, blow off any debris.
4.3b Repeat until all lubricants and fluids that entrap debris to the thread and seal area
surfaces are removed. With a clean air source, blow off any debris.
4.4b Visually inspect Filter Housing Case threads. If any visible damage, the part is a non-
conforming product.
4.5b Visually inspect for presence of a flow arrow marking and heat numbers on case. If either
is missing the assembly is a non-conforming product.

PSM04-20 Rev -, Effective Date: 08/27/20
Viton®, Krytox®are registered trademarks of Dupont Corp.
Norman Filter Company
9850 S. Industrial Drive • Bridgeview, Illinois 60455
Phone: [phone] • Fax: [phone]
www.normanfilters.com • [email protected]om
Page11
5.0b 30K FILTER SERIES HOUSING PLUG
5.1b Assess thread and seal areas for physical damage, inspecting areas in full. The threads
should look shiny and smooth with no denting or galled areas and the seal area should
have no scratches or dents. If there is any physical damage to either area the Filter
Housing Plug should be replaced.
5.2b Clean using an acceptable cleaning fluid and a fine bristle brush. Acceptable cleaning
fluids can be but are not limited to acetone or mineral spirits. Move the brush in a
counterclockwise direction from the seal area to the end of the thread run. This is
repeated until all lubricants and fluids that entrap debris to the thread and seal area
surfaces are removed. With a clean air source, blow off any debris.
5.3b Re-inspect the threaded and seal areas again, as above, this time looking for debris as
well. If the inspection identifies debris in the threaded area, repeat the cleaning above.
5.4b Visually inspect for the presence of a flow arrow marking and heat numbers on the Filter
Housing Plug. If either is missing the part is a non-conforming product.
6.0b 30K FILTER SERIES ELEMENT CLEANING
6.1b Stainless steel Filter Elements may be cleaned as follows:
6.2b Remove rough external dirt in a separate container with cleaning fluid. Acceptable
cleaning fluids can be but are not limited to acetone or mineral spirits.
6.3b Soak the filter for thirty minutes in unsoiled, high-quality cleaning fluid.
6.4b Following the soak, blow through the element (150 psi max.) from inside to outside with
clean compressed air or similar clean gas.
6.5b Remove any remaining water particles by dipping the filter in isopropyl alcohol.
6.6b Inspect element for uniform pleats. If there is any visible damage, the Filter Element is a
non-conforming product and requires replacement.
7.0b 30K FILTER SERIES HOUSING ASSEMBLY
7.1b
NOTE: Lubricate stainless steel thread with Halocarbon 28i Grease only. Do not use silicone lubricants
on stainless steel threads. If the housing is stainless steel and EPR (E) O-rings are used, special care must
be taken not to mix the applicators used for silicone & Halocarbon 28i lubricants. The mixed silicone
lubricants can damage the stainless-steel threads. If the housing is aluminum, lubricate the O-ring and
thread with silicone. If the housing is stainless steel, install the O-ring to the head O-ring groove, then
lubricate the seal by carefully using a fine point brush to apply the silicone lubricant on all surfaces of
the O-Ring.
7.2b Install new O-Ring on Filter Housing Sleeve as seen in diagram. If PTFE O-ring is used, see
section 7.1b for guidance.
7.3b Install new O-Ring on Filter Element as seen in diagram. If a PTFE O-ring is used, see
section 7.1b for guidance.
7.4b Using table in section 7.1b, select and apply appropriate lubricant to Filter Housing Plug
O-ring.
Housing Material
O-ring Material
Lubricant
Stainless
L, N, M, H, K, MN
Halocarbon
Aluminum
L, N, M, H, K, MN
Petroleum Jelly
Stainless/Aluminum
E
Silicone

PSM04-20 Rev -, Effective Date: 08/27/20
Viton®, Krytox®are registered trademarks of Dupont Corp.
Norman Filter Company
9850 S. Industrial Drive • Bridgeview, Illinois 60455
Phone: [phone] • Fax: [phone]
www.normanfilters.com • [email protected]om
Page12
7.5b Using table in section 7.1b select and apply appropriate lubricant to Filter Housing
Element O-ring.
7.6b Using table in section 7.1b select and apply appropriate lubricant to Filter Housing Plug
Sleeve threads.
7.7b Hand tighten Filter Element into Filter Housing Sleeve.
7.8b Secure Filter Housing Case in vise using the flat surface on the end of the cylinder.
7.9b Insert Filter Element and Filter Housing Sleeve assembly inside of the Filter Housing Case
7.10b Begin threading Filter Housing Plug into Filter housing case by hand until tight.
7.11b Once tight, use an appropriate torque wrench to tighten the Filter Housing Plug to 150 ft-
lb. If using PTFE seals, please refer to section 8.0b for torque instructions.

PSM04-20 Rev -, Effective Date: 08/27/20
Viton®, Krytox®are registered trademarks of Dupont Corp.
Norman Filter Company
9850 S. Industrial Drive • Bridgeview, Illinois 60455
Phone: [phone] • Fax: [phone]
www.normanfilters.com • [email protected]om
Page13
8.0b 30K FILTER SERIES ASSEMBLY - PTFE O-RING SPECIFIC INSTRUCTIONS
8.1b When installing PTFE O-rings, use a PTFE rod to avoid tearing or deforming PTFE O-rings.
A PFTE rod is a cylindrical rod of PFTE material that will allow for manipulation of PTFE
rings while mitigating risk of damage.
8.2b When installing PTFE O-Rings, place O-ring on the threads at a 45-degree angle; with one
end at the base of the threads and the other at the top of the threads. Hold the PTFE rod
in both hands and apply firm pressure with the middle of the rod starting at the section
of O-ring at the top of the plug threads. Rock the PTFE rod back and forth to move O-ring
around the threads. Slowly lower the O-ring to by applying light force with the end of the
PTFE rod, running it along the surface of the O-ring in a clockwise direction.
8.3b When applying torque to PFTE O-rings while assembling a 30K Series Filter, torque to 150
ft-lb.
NOTE: PFTE O-rings must be torqued slowly. Only turn 1/4 of one turn at a time and allow for 30-45
seconds in between each 1/4 turn. PFTE O-rings require extra time to form into the proper shape as
they are assembled.
9.0b OXYGEN USE ELEMENTS, HOUSINGS, AND ASSEMBLIES
9.1b All components manufactured are cleaned per Norman Filter Company’s standard
cleaning processes. Precision cleaned and/or oxygen gas or liquid compatible cleaning is
performed only upon request and highly recommended. It is the end user’s responsibility
to specify cleaning specifications and levels.
9.2b Oxygen compatible lubricants are highly recommended and are used within Norman Filter
Company’s assembly process when oxygen environments are specified by the customer
(i.e. Krytox®)
NOTE: The filter element life is based upon cleaning cycles and pressure drop. The estimated life of the
element is 10 to 15 cleaning cycles. If the element has exceeded this level, discard and replace with a
replacement element. Acceptable cleaning fluids can be but are not limited to acetone or mineral
spirits. Halocarbon 28i grease is our recommended lubricant. Extreme caution should be used when
using dry lubricants, since our threads are single point, precision threads and dry lubricants can disrupt
clearances.

PSM04-20 Rev -, Effective Date: 08/27/20
Viton®, Krytox®are registered trademarks of Dupont Corp.
Norman Filter Company
9850 S. Industrial Drive • Bridgeview, Illinois 60455
Phone: [phone] • Fax: [phone]
www.normanfilters.com • [email protected]om
Page14
Norman Filter Company
9850 S. Industrial Drive • Bridgeview, Illinois 60455
Phone: [phone] • Fax: [phone]
www.normanfilters.com • [email protected]om
4700 Series Filter
Port Sizes 11, 11J, 22, 23
Product Service Manual
PSM04-20 Rev -, Effective Date: 08/27/20

PSM04-20 Rev -, Effective Date: 08/27/20
Viton®, Krytox®are registered trademarks of Dupont Corp.
Norman Filter Company
9850 S. Industrial Drive • Bridgeview, Illinois 60455
Phone: [phone] • Fax: [phone]
www.normanfilters.com • [email protected]om
Page15
WARNING!!
COMPLETELY DEPRESSURIZE SYSTEM BEFORE
CONNECTING/DISCONNECTING FILTER ASSEMBLY
1.0c 4700 FILTER SERIES WITH PORT 11, 11J, 22, 23 HOUSING COMPONENTS
1.1c Filter Housing Case
1.2c Filter Housing Plug
1.3c Filter Housing O-ring
1.4c Filter Element
1.5c Filter Element O-ring

PSM04-20 Rev -, Effective Date: 08/27/20
Viton®, Krytox®are registered trademarks of Dupont Corp.
Norman Filter Company
9850 S. Industrial Drive • Bridgeview, Illinois 60455
Phone: [phone] • Fax: [phone]
www.normanfilters.com • [email protected]om
Page16
2.0c 4700 FILTER SERIES WITH PORT 11, 11J, 22, 23 DISASSEMBLY
2.1c Be sure to follow all safety rules, such as wearing protective eyewear and gloves.
2.2c Disconnect the filter assembly from the system supply line AFTER depressurization.
2.3c Secure filter assembly (case portion) in vise using flat area at the end of the cylinder.
NOTE: Exercise caution when removing element to prevent damage to pleated media. Scratches,
punctures, tears or otherwise damaging the filter element media will require replacement of the
element.
2.4c Use a suitable wrench to unscrew the Filter Housing Plug from the Filter Housing Case,
using the flat area at the other end of the cylinder as the connection point for the wrench.
Filter Housing Plug will have the Filter Element attached to it. Remove with it with caution
and set the Filter Housing Plug and Filter Element assembly aside. Be careful not to
damage the pleated filter media. Scratches, punctures, tears or otherwise damaging the
element will require replacement.
2.5c Remove the Filter Housing Case from the vise and set it aside. Secure the Filter Housing
Plug & Filter Element assembly to the vise. Use a suitable wrench to unscrew the Filter
Element from the Filter Housing Plug.
2.6c Remove Filter Element O-ring and discard.
2.7c Remove Filter Housing O-ring and then discard.
2.8c Glass Fiber and paper elements are not reusable and must be replaced.
3.0c 4700 FILTER SERIES WITH PORT 11, 11J, 22, 23 CLEANING
3.1c Stainless steel Filter Elements may be cleaned as follows:
3.2c Remove rough external dirt in a separate container with cleaning fluid. Acceptable
cleaning fluids can be but are not limited to acetone or mineral spirits.
3.3c Soak the filter for thirty minutes in unsoiled, high-quality cleaning fluid.
3.4c Following the soak, blow through the element (150 psi max.) from inside to outside with
clean compressed air or similar clean gas.
3.5c Remove any remaining water particles by dipping the filter in isopropyl alcohol.
3.6c Inspect element for uniform pleats. If there is any visible damage, the Filter Element is a
non-conforming product and requires replacement.
4.0c 4700 FILTER SERIES WITH PORT 11, 11J, 22, 23 PLUG CLEANING
4.1c Assess thread and seal areas for physical damage, inspecting areas in full. The threads
should look shiny and smooth with no denting or galled areas and the seal area should
have no scratches or dents. If there is any physical damage to either area the Filter
Housing Plug should be replaced.
4.2c Clean using an acceptable cleaning fluid and a fine bristle brush. Acceptable cleaning
fluids can be but are not limited to acetone or mineral spirits. Move the brush in a
counterclockwise direction from the seal area to the end of the thread run. This is
repeated until all lubricants and fluids that entrap debris to the thread and seal area
surfaces are removed. With a clean air source, blow off any debris.
4.3c Re-inspect the threaded and seal areas again, as above, this time looking for debris as
well. If the inspection identifies debris in the threaded area, repeat the cleaning above.
4.4c Visually inspect for the presence of a flow arrow marking and heat numbers on the Filter
Housing Plug. If either is missing the part is a non-conforming product.

PSM04-20 Rev -, Effective Date: 08/27/20
Viton®, Krytox®are registered trademarks of Dupont Corp.
Norman Filter Company
9850 S. Industrial Drive • Bridgeview, Illinois 60455
Phone: [phone] • Fax: [phone]
www.normanfilters.com • [email protected]om
Page17
5.0c 4700 FILTER SERIES WITH PORT 11, 11J, 22, 23 CASE CLEANING
5.1c Assess thread and seal areas. The threads should look shiny and smooth with no denting
or galled areas and the seal area should have no scratches or dents. If there is any
physical damage to either area the Filter Housing Case should be replaced.
5.2c Clean using an acceptable cleaning fluid and a fine bristle brush. Acceptable cleaning
fluids can be but are not limited to acetone or mineral spirits. Move the brush in a
counterclockwise direction from the seal area to the end of the thread run. This is
repeated until all lubricants and fluids that entrap debris to the thread and seal area
surfaces are removed. With a clean air source, blow off any debris.
5.3c Re-inspect the threaded and seal areas again, as above, this time looking for debris as
well. If the inspection identifies debris in the threaded area, repeat the cleaning above.
5.4c Visually inspect Filter Housing Case threads. If there is any visible damage, the part is a
non-conforming product.
5.5c Visually inspect for the presence of a flow arrow marking and heat numbers on Filter
Housing Case. If either is missing the assembly is a non-conforming product.
6.0c 4700 SERIES FILTER WITH PORT SIZE 11, 11J, 22, 23 ASSEMBLY
6.1c Install new O-ring on Filter Element. If PTFE O-ring, refer to section 6.0 for guidance.
6.2c Install new O-ring on Filter Housing Plug. If PTFE O-Ring, refer to section 6.0 for guidance.
6.3c Using proper lubricant selected from table 6.5.1c, apply lubricant to Filter Element O-ring.
6.4c Using proper lubricant selected from table 6.5.1c, apply lubricant to Filter Housing O-ring.
6.5c Using proper lubricant selected from table 6.5.1c, apply lubricant to Filter Housing Case
threading.
6.5.1c
NOTE: Lubricate stainless steel thread with Halocarbon 28i Grease only. Do not use silicone lubricants
on stainless steel threads. If the housing is stainless steel and EPR (E) O-rings are used, special care must
be taken not to mix the applicators used for silicone & Halocarbon 28i lubricants. The mixed silicone
lubricants can damage the stainless-steel threads. If the housing is aluminum, lubricate the O-ring and
thread with silicone. If the housing is stainless steel, install the O-ring to the head O-ring groove, then
lubricate the seal by carefully using a fine point brush to apply the silicone lubricant on all surfaces of
the O-Ring.
6.6c Secure Filter Housing Plug in vise. Begin threading Filter Element into Filter Housing Plug
by hand, and then use a proper wrench to tighten until metal seats on metal (bottoms
out.) Remove from vise and set aside.
6.7c Secure Filter Housing Case in vise. Begin threading Filter Housing Plug & Filter Element
assembly into Filter Housing Case by hand until tight.
6.8c Using proper torque wrench, torque to 120 ft-lb. If Using PFTE O-rings, refer to section
7.0c for proper torque procedure.
Housing Material
O-ring Material
Lubricant
Stainless
L, N, M, H, K, MN
Halocarbon
Aluminum
L, N, M, H, K, MN
Petroleum Jelly
Stainless/Aluminum
E
Silicone

PSM04-20 Rev -, Effective Date: 08/27/20
Viton®, Krytox®are registered trademarks of Dupont Corp.
Norman Filter Company
9850 S. Industrial Drive • Bridgeview, Illinois 60455
Phone: [phone] • Fax: [phone]
www.normanfilters.com • [email protected]om
Page18
7.0c 4700 FILTER SERIES WITH PORT 11, 11J, 22, 23 PTFE O-RING SPECIFIC INSTRUCTIONS
7.1c When installing PTFE O-rings, use a PTFE rod to avoid tearing or deforming PTFE O-rings.
A PFTE rod is a cylindrical rod of PFTE material that will allow for manipulation of PTFE
rings while mitigating risk of damage.
7.2c When installing PTFE O-Rings, place O-ring on the threads at a 45-degree angle; with one
end at the base of the threads and the other at the top of the threads. Hold the PTFE rod
in both hands and apply firm pressure with the middle of the rod (clockwise or
counterclockwise direction). Starting at the section of O-ring at the top of the plug
threads, rock the PTFE rod back and forth to move O-ring around the threads, slowly
lowering the O-ring to the base of threaded plug.
NOTE: It is important to note that PFTE O-rings must be torqued slowly. Only turn 1/4 of one turn at a
time and allow for 30-45 seconds in between each 1/4 turn. PFTE O-rings require extra time to form
into the proper shape as they are assembled. Refer to table below for proper case & plug torque levels.
8.0c OXYGEN USE ELEMENTS, HOUSINGS, AND ASSEMBLIES
8.1c All components manufactured are cleaned per Norman Filter Company’s standard
cleaning processes. Precision cleaned and/or oxygen gas or liquid compatible cleaning is
performed only upon request and highly recommended. It is the end user’s responsibility
to specify cleaning specifications and levels.
8.2c Oxygen compatible lubricants are highly recommended and are used within Norman Filter
Company’s assembly process when oxygen environments are specified by the customer
(i.e. Krytox®)
NOTE: The filter element life is based upon cleaning cycles and pressure drop. The estimated life of the
element is 10 to 15 cleaning cycles. If the element has exceeded this level, discard and replace with a
replacement element. Acceptable cleaning fluids can be but are not limited to acetone or mineral
spirits. Halocarbon 28i grease is our recommended lubricant. Extreme caution should be used when
using dry lubricants, since our threads are single point, precision threads and dry lubricants can disrupt
clearances.

PSM04-20 Rev -, Effective Date: 08/27/20
Viton®, Krytox®are registered trademarks of Dupont Corp.
Norman Filter Company
9850 S. Industrial Drive • Bridgeview, Illinois 60455
Phone: [phone] • Fax: [phone]
www.normanfilters.com • [email protected]om
Page19
Norman Filter Company
9850 S. Industrial Drive • Bridgeview, Illinois 60455
Phone: [phone] • Fax: [phone]
www.normanfilters.com • [email protected]om
4700 Series Filter
Port Sizes 250, 375, 562
Product Service Manual
PSM04-20 Rev -, Effective Date: 08/27/20