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UH210

UH210 Series

H I G H   P R E S S U R E   F I L T E R S

s e r v i c e  

i n s t r u c t i o n s

3

Note: Painting of the filter housing is optional. The coating 

on the filter housing is a suitable painting base. Cover the 

differential pressure warning device and nameplate if painting 

of the housing takes place.

4.8  Bleed the filter.
4.8.1  UH210 series (cover service): Bleed the filter by    
 

opening the vent plug (7) at the top of filter one    

 

and one half turns. Jog system and fill filter until all  

 

air bleeds through the plug, then torque tighten the  

 

vent plug to 12 lb/ft or 16Nm.

4.8.2   UH210H series (head service): Bleed the filter by  
 

opening the blanking plug (6b) one and one-half   

 

turns.   Jog system and fill filter until all air bleeds  

 

through the plug, then torque tighten the blanking  

 

plug to 12 lb/ft or 16 Nm . 

Pressurize system fully and check for leaks; if leaks occur  
refer to section 5.

Routine maintenance

5.1   

Pall

 filters do not normally require special attention 

except for periodic monitoring of the differential pressure 
warning device. Schedule replacement of filter element 
every six months or sooner, and have ample supply of 
spare elements available. 

5.2   If external leakage is noted, replace O-ring at leak. If 

leakage persists, check sealing surfaces for scratches  
or cracks; replace any defective parts. 

5.3   Differential pressure devices actuate when the element 

needs changing or because of high fluid viscosity in 
‘cold start’ conditions. If ‘cold start’ conditions exist,  
see Section 6.2 and 6.3.

5.4   A dirty system can quickly plug a new filter element, 

especially with 

Pall

 high efficiency filter media. It may 

require one or two initial element changes to stabilize 
element life. If element life is short or differential 
pressure is excessive, filter may be undersized; refer to 
the sizing and selection section of the product literature 
or contact your local Pall representative.

5.5   Make sure element change labels are clean and 

undamaged. Replace illegible labels with the appropriate 
new labels.

Differential pressure devices

Reference should be made to product literature for dimensions, 

operating parameters, part numbering, ordering information 

and specifications. 
6.1   Differential pressure devices actuate when the element 

needs changing or because of high fluid viscosity in 

‘cold start’ conditions. 

6.2   If stainless steel visual indicator is fitted and actuates 

during ‘cold start’ (red button extends 5mm, 3/16”), 

reset by depressing the button when the normal 

operating temperature is reached. If indicator actuates 

after resetting, replace element. If brass indicator 

ENGLISH

is fitted and actuates during ‘cold start’ (flag inside 

indicator changes from white to red), it will automatically 

reset when the normal operating temperature is reached.  

If indicator is still actuated after normal operating 

temperature is reached, replace element.

NOTE: Option ‘P’ visual indicator has thermal lockout and 

manual reset. No signal below 0°C (32°F), signal above 

29°C (80°F).

6.3   If the electrical switch actuates (e.g. red light comes on) 

during cold start, continue operating until the signal (red 

light) goes out as system warms to normal operating 

temperature. This feature can be used as ‘warm up’ 

indication in operating procedures. If the warning signal 

(red light) remains or appears when system is warm, 

replace the filter element.

6.4  Use of both positive indication (green light) and    

 

negative indication (red light for blocked element) is  

 

recommended to effectively monitor filter element life.

Electrical connections and ratings are dependent on 

indicator chosen.  Typical values only are shown below:

110 VAC = 

4A (inductive)

 

 

4A (resistive)

220 VAC =  

4A (inductive)

 

 

4A (resistive)

28 VDC =  

3A (inductive)

 

 

5A (resistive)

48 VDC =  

1A (inductive)

 

 

1.5A (resistive)

125 VDC =  

0.25A (inductive)

 

 

0.5A (resistive)

Maximum in-rush 

24 amps

Underwriter’s lab. Inc. listed ratings of pressure switch 
(Microswitch) options are:

4 amps at 250 VAC 
0.25 amp resistive at 220 VDC 
0.50 amp resistive at 110 VDC

Electrical differential pressure switch option:

When preset differential pressure is exceeded continuity 

switches from Normally Closed (NC) - Common to Normally 

Open (NO) - Common
When differential pressure decreases below the pre-set value, 

continuity returns from Normally Open (NO) - Common to 

Normally Closed (NC) - Common

CAUTION:
Failure to bleed the filter housing adequately will increase 

the dissolved air content of the system fluid which will 

shorten fluid life and may cause other problems in the 

system.

Figure 1a - 

Stainless Steel Switch Circuit Diagram

C

or black

or tag 2

A

or white

or tag 1

B

or red

or tag 3

LOW DIFFERENTIAL PRESSURE

HIGH DIFFERENTIAL PRESSURE

Summary of Contents for UH210 Series

Page 1: ... NL UH219 onderhoudsinstructies IT UH219 istruzioni di servizio GI UH219 ïäçãßåò ó ñâéò FI UH219 huolto ohjeet FR UH219 notice d entretien EN UH219 Service Instructions DK UH219 Service Instruktioner ES UH219 Instrucciones de servicio PT UH219 instruções de funcionamento SE UH219 serviceinstruktion DEUTSCH DANSK ESPANOL ENGLISH SUOMI FRANCAIS ITALIANO NEDERLANDS PORTUGUES SVENSKA ÅËËÇÍÉÊÁ ...

Page 2: ...learance required for element removal is as follows 4 2 1 UH210 series cover service 147mm 5 8in for length 4 248mm 9 8in for length 8 383mm 15 1in for length 13 and 553mm 21 8in for length 20 housings 4 2 2 UH210 series head service 81mm 3 2 for all lengths 4 2 3 The UH210 Housing is supplied without a filter element For element installation and servicing procedures refer to Section 7 4 3 Threade...

Page 3: ...when the element needs changing or because of high fluid viscosity in cold start conditions 6 2 If stainless steel visual indicator is fitted and actuates during cold start red button extends 5mm 3 16 reset by depressing the button when the normal operating temperature is reached If indicator actuates after resetting replace element If brass indicator ENGLISH is fitted and actuates during cold sta...

Page 4: ...not warrant the service life of the filter element as this is beyond the Seller s control and depends upon the condition of the system into which the filter is installed 4 7 Filter element installation servicing During servicing the external surfaces of the filter assembly must be cleaned to remove any dust deposits Servicing must be conducted using suitable tools that do not present a hazard Serv...

Page 5: ...f the Seller s factory except by Seller or Seller s authorized distributor and then as to the latter only for products which have been assembled by the distributor in accordance with Seller s written instructions Nor shall Seller be liable for a product subjected to misuse abuse improper installation application operation maintenance or repair alteration accident or negligence in use storage trans...

Page 6: ...6 Figure 2 UH210 UH210 Series HIGH PRESSURE FILTERS service instructions 4 8 5 3 4 2 6 7 1 6b Not shown ...

Page 7: ...it Gewindetiefe AA 4 huller med gevind dybde AA 4 taladros pasantes roscados Profundidad AA 4 täyskierteistä reikää syvyys AA 4 trous taraudés de profondeur AA 4 fori completamente filettati profondità AA 4 tapgaten met draad over volle diepte 4st fästhål Gänga Z Min gängdjup AA GG Q Flange Connection Details Flange Code Nominal Tube Size GG Q Z Thread AA E20 11 4 1 250 2 625 1 2 13 UNC 0 75 G20 1...

Page 8: ...he world For Pall representatives in your area please go to www pall com contact Because of technological developments related to the products systems and or services described herein the data and procedures are subject to change without notice Please consult your Pall representative or visit www pall com to verify that this information remains valid Copyright 2015 Pall Corporation Athalon Pall an...

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