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BLACOH F

LUID 

C

ONTROL

, I

NC

.

E

QUIPMENT

M

ISUSE 

H

AZARD

C A U T I O N !  

General Safety

DO NOT 

misuse dampener, including but not limited 

to  over-pressurization,  modification  of  parts,  using 

incompatible  chemicals,  or  operating  with  worn  or 

damaged parts.  

DO NOT 

use any gases other than 

compressed  air  or  clean  dry  Nitrogen  to  charge 

dampener.   

DO  NOT  USE  OXYGEN.   

Any  misuse 

could  result  in  serious  bodily  injury,  death,  fire, 

explosion or property damage. 

Over-Pressurization

Never  exceed  the  maximum  pressure  rating  for  the 

dampener  model  being  used.    Maximum  allowable 

working pressure (MAWP) is specified on dampener 

serial  tag  or  marked  on  dampener.    Maximum 

allowable working pressure (MAWP) is rated at 70°F 

(21°C).

Temperature Limits

DO NOT

 exceed the operating temperature limits for 

the  body  and/or  elastomer  materials  being  used.  

Excessive  temperature  will  result  in  dampener 

failure.    For  temperature  limits,  refer  to  the 

“Temperature  Limits”  section  of  the  Manual.  

Temperature limits are stated at zero psi/bar.  

Installation and Start-Up Hazards

Install  dampener  before  charging  or  pressurizing.  

DO  NOT

  start  system  or  assembly  without  first 

charging  or  pressurizing  dampener.    Failure  to 

charge  may  result  in  damage  to  the  elastomeric 

bladder or PTFE bellows. 

Temperature & Pressure Hazard

Temperature  and  pressure  reduce  the  strength  and 

chemical resistance of plastic, metal, elastomers and 

PTFE.

Charging / Pressurization

Charge or pressurize dampener with compressed air 

or clean dry Nitrogen only.  

DO NOT USE OXYGEN.

Dampener Bladder/Bellows Failure

Dampeners  utilize  an  elastomeric  membrane 

(bladder)  or  PTFE  bellows  to  separate  system  fluid 

from  the  air  supply  or  gas  charge.    When  failure 

occurs,  system  fluid  may  be  expelled  from  the  air 

valve.    Always  perform  preventive  maintenance  and 

replace  bladder/bellows  before  excessive  wear 

occurs.  O-rings for PTFE bellows cannot be re-used. 

Maintenance Hazards

Never  over-tighten  fasteners.    This  may  cause 

leakage  of  system  fluid  and  damage  to  dampener 

body.    Bolts  on  metal  models  should  not  be  reused 

as  re-torquing  reduces  bolt  strength. 

AFTER 

MAINTENANCE  OR  RE-ASSEMBLY  OF  METAL 

MODELS,  USE  NEW  FASTENERS  AND  TORQUE 

FASTENERS ACCORDING TO SPECIFICATION ON 

DAMPENER TAG. 

GENERAL I

NFORMATION

For  safe  and  satisfactory  operation  of  dampener,  read  all  safety  warnings  and  caution  statements,  and 

this complete Manual before installation, startup, operation or maintenance. 

M

UST

R

EAD

B

EFORE

I

NSTALLATION

DO  NOT  use  Oxygen  to  charge  dampener. 

Use  compressed  air  or  clean  dry  Nitrogen 

only. 

Danger of static spark! 

Grounding precautions 

must be considered  when dampener  is  used  in 

flammable or explosive environments. 

DO  NOT

  exceed  maximum  allowable  working 

pressure (MAWP) specified on dampener serial 

tag or marked on dampener. 

ATEX  Models  must  be  grounded  (earthed) 

before operation. 

Turn  pump  off  and  remove  all  pressure  from 

system prior to dampener installation. 

DO  NOT

  operate  a  dampener  that  is  leaking, 

damaged,  corroded  or  otherwise  unable  to 

contain internal fluid, air or gas pressure. 

Always  wear  safety  glasses  and  other 

appropriate  safety  equipment  when  installing, 

charging or repairing dampener. 

Temperature, pressure and chemicals affect the 

strength  of  plastic,  elastomer,  and  metal 

components. 
Many  plastics  lose  strength  rapidly  as 

temperature  increases.    Consult  factory  if  in 

doubt. 

Содержание Sentry

Страница 1: ...n never Oxygen is introduced into the non wetted side of the dampener The gas charge is contained by the bladder or bellows preventing contact between the system fluid and the gas When the dampener is sized correctly properly installed and charged according to the instructions provided it will greatly reduce the damaging effects of pressure variations in piping systems and significantly improve th...

Страница 2: ...DEL SPECIFICATIONS INSTALLATION INFORMATION Model No Serial No Installation Date Body Material Wetted Non wetted Bladder Bellows Material Pump Area and Number Purchased From Contact Phone E Mail THE WORD DAMPENER AS USED IN THIS MANUAL HAS THE SAME MEANING AS PULSATION DAMPENER INLET STABILIZER OR SURGE SUPPRESSOR Copyright 2010 Blacoh Fluid Controls Inc All rights reserved Information in this doc...

Страница 3: ...fore starting system or assembly Verify dampener model received against purchase order and shipper Before starting a system or assembly make certain the discharge point of the piping system is clear and safe and all persons have been warned to stand clear DO NOT put your face or body near dampener when the system or assembly is operating or dampener is pressurized DO NOT operate a dampener that is...

Страница 4: ...n elastomeric membrane bladder or PTFE bellows to separate system fluid from the air supply or gas charge When failure occurs system fluid may be expelled from the air valve Always perform preventive maintenance and replace bladder bellows before excessive wear occurs O rings for PTFE bellows cannot be re used Maintenance Hazards Never over tighten fasteners This may cause leakage of system fluid ...

Страница 5: ...ve maintenance program Dampeners used in conjunction with diaphragm pumps should have the bladders replaced at least every second time the diaphragms in the pump are replaced As with any pumping system wear is dependent on many factors including material temperature chemicals fluid abrasiveness and system design This suggested maintenance program may need to be adjusted according to specific appli...

Страница 6: ...s lose strength as temperature increases which reduces the maximum pressure sustainable by the material Non Metallic Body Materials Temperature Limits Applications PVC See chart below Good general chemical resistance looses strength quickly as temperature rises CPVC 32 F to 180 F 0 C to 82 C Chlorinated PVC CPVC retains strength to higher temperatures Acetal 32 F to 175 F 0 C to 79 C Good flex lif...

Страница 7: ...h depends on the elastomer material temperature and pressure Checks must occur when no system pressure is present or inaccurate readings will be recorded If temperature is above 72 F 22 C and or pressure is over 300 psi 20 7 bar checks should be performed more frequently To prevent pre charge loss through the fill valve always replace the fill valve cap after charging A proper gas charge is the ke...

Страница 8: ...rs Dampener installation should be no more than ten pipe diameters from pump inlet If using a flexible connector on the inlet side of the pump between the system piping and pump the dampener should be installed on a tee at the pump inlet manifold The flexible connector should be attached to the dampener s tee and system piping see FIGURE 1 A compound pressure gauge should be installed upstream of ...

Страница 9: ...line connection Dampener can be pre charged with compressed air up to a maximum pressure of 150 psi 10 3 bar If maximum pressure will exceed 150 psi 10 3 bar dampener must be pre charged with Nitrogen only Use a hand pump Nitrogen tank or air compressor to charge dampener DO NOT USE OXYGEN Charging hose kits are available from BLACOH The dampener must be pre charged after installation but prior to...

Страница 10: ...9 BLACOH FLUID CONTROL INC NOTES ...

Страница 11: ...mage as defined above including but not limited to Damage arising from defects in Blacoh products and or from the handling and use of Blacoh products whether used in accordance with Blacoh s directions or otherwise Any products sold by Blacoh which are manufactured by and sold under the name of another company are NOT WARRANTED by Blacoh under the foregoing Warranty or otherwise The buyer must rel...

Страница 12: ...determines that a defect in workmanship or material of a part has occurred customer is not entitled to a complete unit replacement In the event of such a defect Blacoh will repair or replace the defective part or parts or refund the purchase price as Blacoh determines in Blacoh s sole discretion New Product Returns 1 If a customer wishes to return a new unused product the customer must first reque...

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