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BLACOH F

LUID 

C

ONTROL

, I

NC

.

  

10

M

ANUFACTURER

S

L

IMITED 

W

ARRANTY

& R

ETURN

P

OLICY

Standard Product Limited Warranty

Subject  to  the  limitations  set  forth  below,  Blacoh  Fluid  Controls,  Inc.  ("Blacoh")  warrants  its  products  to  be  free 

from  defects  in  material  and  workmanship  under  normal

  use,  service,  and  maintenance  in  accord  with  Blacoh’s 

published  specifications  for  a  period  of  two  years  from  date  of  shipment  by  Blacoh  (the  "Warranty").    The 

EXCLUSIVE  REMEDY  for  any  product  defect  covered  under  this  Warranty  shall  be  one  of  the  following,  as 

determined by Blacoh in Blacoh’s sole discretion: (a) refund 

of the purchase price; or (b) replacement or repair of 

the  defective  part  or  parts  at  Blacoh’s  facility.    This  Wa

rranty  will  be  null  and  void  if  the  product  is  used  in  an 

inappropriate  application  or  if  the  product  has  been  altered,  misapplied,  improperly  installed,  or  not  properly 

inspected and maintained.  To the maximum extent allowed by applicable law, Blacoh  will not be responsible for 

nor have any liability for any “Damage,” which means any of

 the following, whether the claim sounds in breach of 

contract, breach of warranty, tort, strict liability, implied 

contractual indemnity, or otherwise:  (i) any damage, loss,  

or  injury  of  any  kind,  or  destruction,  or  death,    whether  or  not  caused  by  any  defect  in  a  Blacoh  product  and 

whether  or  not  the  Blacoh  product  is  installed,  used,  operated,  and/or  maintained  in  accord  with  Blacoh 

instructions, to other products, machinery, buildings, property, or persons, and (ii) any costs, expenses, losses, or 

incidental,  consequential,  or  special  damages  of  any  kind  or  nature,  including  but  not  limited  to  loss  of  profits, 

arising  from  or  related  to  any  Blacoh  product,  whether  or  not  caused  by  any  defect  in  a  Blacoh  product  and 

whether  or  not  the  Blacoh  product  is  installed,  used,  operated,  and/or  maintained  in  accord  with  Blacoh 

instructions.    Damage  resulting  from  chemical  incompatibility  or  from  over-pressurization  of  a  product,  whether 

from  gas  or  fluid,  is  not  covered  under  this  Warranty,  nor  will  Blacoh  be  responsible  in  any  way  for  any  such 

Damage. Because Blacoh does not determine and cannot anticipate or control the many different conditions under 

which  its  products  may  be  used,  Blacoh  does  not  warranty  the  applicability,  suitability,  or  fitness  of  any  of  its 

products  for  any  particular  use  or  purpose.    Statements  concerning  the  possible  use  of  Blacoh  products  are  not 

intended and shall not be interpreted as warranties of fitness for any specific use of such products.  Each user of 

Blacoh products must conduct its own engineering analysis  and tests to determine the suitability of  each Blacoh 

product  for  the  user's  intended  uses  or  purposes,  including  but  not  limited  to  chemical  compatibility  and 

pressurization,  and  any  written  or  oral  assistance  from  Blacoh  in  this  regard  does  not  relieve  the  user  from 

exclusive responsibility for such engineering analysis and testing.  Blacoh products are sold with only this limited 

Warranty, and each buyer assumes all responsibility for Damage (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  rely  exclusively  on  the  product  warranty,  if  any,  given  by  such  other  company.  

Products manufactured by Blacoh as an original equipment manufacturer (OEM) to be sold by a customer under 

the customer’s brand and name are warranted by Blacoh 

only under the above Warranty, and Blacoh shall have no 

liability  whatsoever  with  respect  to  any  representation  or  warranty  given  by 

such  customer  (or  such  customer’s 

representatives, distributors, agents, employees, or independent contractors) to any of its buyers which is different 

in any respect whatsoever from the foregoing Warranty.  EXCEPT FOR THE WARRANTY GIVEN ABOVE, WHICH 

IS  SUBJECT  TO  THE  ADDITIONAL  LIMITATIONS  STATED  ABOVE,  AND  EXCEPT  FOR  THE  ADDITIONAL 

LIMITED  WARRANTY  ON  BLACOH’S  PTFE  BELLOWS 

STATED  BELOW,  BLACOH  GIVES  NO  WARRANTY  OF 

ANY  NATURE  WHATSOEVER,  EXPRESS  OR  IMPLIED,  WITH  RESPECT  TO  ANY  OF  ITS  PRODUCTS, 

INCLUDING  WITHOUT  LIMITATION  NO  WARRANTY  OF  MERCHANTABILITY  AND  NO  WARRANTY  OF 

FITNESS FOR A PARTICULAR PURPOSE.  NO COURSE OF DEALING, USAGE OF TRADE, OR OTHER ORAL 

OR WRITTEN STATEMENTS SHALL MODIFY THE FOREGOING WARRANTY PROVISIONS AND LIMITATIONS 

IN  ANY  RESPECT  WHATSOEVER.    This  Warranty  shall  be  governed  by  and  construed  in  accordance  with  the 

laws of the State of California. 

PTFE Bellows Limited Warranty

In  addition  to  Blacoh's  Standard  Product  Limited  Warranty  and  subject  to  the  limitations  set  forth  below,  Blacoh 

warrants that its PTFE Bellows equipment (“PTFE Bellows”) on Blacoh's PTFE Bellows-fitted pulsation dampener 

will perform in accordance with Blacoh's written product description for three years from date of shipment ("PTFE 

Bellows Warranty").  This PTFE Bellows Warranty applies only to PTFE Bellows that are sized, charged, installed, 

used,  operated,  and  maintained  strictly  in  accordance  with  all  installation,  use,  operation,  and  maintenance 

instructions provided by Blacoh, and failure to properly size, charge, install, use, operate, and maintain the PTFE 

Bellows (or failure to do any of them) shall make the  PTFE Bellows Warranty null and void.  This PTFE Bellows 

Warranty does not include applications where failure of performance is due to an unbalanced pressure load or a 

transient pressure spike (sometimes called a water hammer).  The EXCLUSIVE REMEDY for breach of this PTFE 

Bellows  Warranty  is  replacement  of  the  PTFE  Bellows  at 

Blacoh’s  facility,  and  not  any  other  equipment  or  parts 

whatsoever,  and  Blacoh  will  not  be  responsible  for  any  Damage  or  any  other  loss  of  any  kind,  including  but  not 

limited  to  incidental,  consequential,  or  special  damages  (including  but  not  limited  to  loss  of  profits),  in  any  way 

arising from failure of the PTFE Bellows to perform in accordance with Blacoh’s written product description.  This 

PTFE Bellows Warranty shall be governed and construed in accordance with the laws of the State of California. 

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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