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BLACOH F

LUID 

C

ONTROL

, I

NC

.

  

2

SAFETY W

ARNINGS

Dampeners  should  only  be  installed,  operated  and  repaired  by  experienced  and  trained  professional  mechanics.  

Read  and  observe  all  instructions  and  safety  warnings  in  this  Manual  before  installing,  operating  or  repairing 

dampeners.   

S

AFETY

S

YMBOLS

The  following  symbols  indicate  cautions,  warnings  and  notes  that  must  be  observed  for  safe  and  satisfactory 

installation, operation and maintenance of dampener. 

WARNINGS 

Danger of serious injury or death could occur if these warnings are ignored. 

CAUTIONS 

Equipment damage, injury or death could occur if these cautions are not observed. 

NOTES

Special instructions for safe and satisfactory installation, operation and maintenance. 

G

ENERAL

S

AFETY

C A U T I O N !  

ƒ

  Observe  all  safety  symbols  in  installation  and 

operation instructions. 

ƒ

  The  internal  dampener  pressure  will  equal  the 

maximum fluid pressure of the system in  which it 

is installed. 

ƒ

DO  NOT

  exceed  maximum  allowable  working 

pressure  (MAWP)  specified  on  dampener  serial 

tag  or  marked  on  dampener.    If  serial  tag  is 

missing,

DO  NOT

  use  dampener  without 

consulting  distributor  or  factory  for  maximum 

pressure rating. 

ƒ

  Always  make  sure  safety  shutoff  valves, 

regulators,  pressure  relief  valves,  gauges,  etc. 

are  working  properly  before  starting  system  or 

assembly. 

ƒ

  Verify  dampener  model  received  against 

purchase order and shipper. 

ƒ

  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. 

ƒ

DO  NOT

  put  your  face  or  body  near  dampener 

when  the  system  or  assembly  is  operating,  or 

dampener is pressurized. 

ƒ

DO  NOT

  operate  a  dampener  that  is  leaking, 

damaged,  corroded  or  otherwise  unable  to 

contain internal fluid, air or gas pressure. 

ƒ

DO  NOT

  pump  incompatible  fluids  through 

dampener.    Consult  distributor  or  factory  if  you 

are  not  sure  of  the  compatibility  of  system  fluids 

with dampener materials. 

ƒ

  Dampeners  are  designed  to  operate  with 

compressed air or clean dry Nitrogen 

only

. Other 

compressed gases have not been tested and may 

be unsafe to use.  DO NOT USE OXYGEN. 

ƒ

  Always  shut  off  air  supply,  remove  internal 

dampener pressure, and shut dampener isolation 

valve  before  performing  dampener  maintenance 

or repair. 

ƒ

  Remove  all  pressure  from  dampener  AND 

pumping  system  before  disassembly,  removal  or 

maintenance. 

ƒ

Static spark  can cause an explosion resulting 

in severe injury or death.  Ground dampeners 

and 

pumping 

system  when 

pumping 

flammable  fluids  or  operating  in  flammable 

environments. 

ƒ

NOTE:    EC  standard  EN-13463-1  and  EN-

13463-5  (ATEX)  require  grounding  (earthing) 

on  dampeners  when  the  potential  for  static 

sparking  is  present.    A  grounding  point  is 

located  and  marked  on  ATEX  specific 

dampener models. 

Summary of Contents for Sentry

Page 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...

Page 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...

Page 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...

Page 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 ...

Page 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...

Page 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...

Page 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...

Page 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 ...

Page 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...

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

Page 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...

Page 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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