PulseGuard Pulsation Dampers
PulseGuard: Guarding Against Pulsation
Pump Pulsation Dampers
Fluid Flow Control Animations

Pulsation Dampers, for High Pressure, with PTFE membranes
And elastomer backed bonded Teflon ® Diaphragms.

High Pressure Damper with PTFE Diaphragm Membrane, Size and Pressure Selection HOME

High-Pressure-Damper-PTFE >> Click for PDF

Direct ported small Flo

               Twin flow-through connections listed below are to ensure that both low frequency volumetric flow fluctuation frequencies , and high frequency "acoustic" pressure pulsation, are fully intercepted and addressed by the pulsation damper; at the same time as providing full flushibility.
              Where the benefits of superior flow fluctuation smoothing, and pressure pulsation interception for free, plus in line flow through flushibility are not required, on single conection may be specified.
              The available size of a single connection, for mounting on an additional "T" piece in the system,  can usually be up to twice the size of "flo-thru" porting listed for a given volume of damper. Single flanges must have an OD less than the dimension that falls inside the body bolting.

Table dimensions below are for your Guidance in space selection.
Certified dimensions will be "as built" .
Positions of connections, weld ends, threads, flanges etc. are +&- 3mm.

 

banner miniature PTFE damper

FlexOrber

MINI & SMALL volumes, of high pressure pulsation dampers, with PTFE membranes .  PTFE  aka  Dupont "TEFLON ®" is a stiff material, the force necessary to cause it to deflect , particularly at a even a moderate frequenct prevents achieving levels of residual pulsation lower than 0,5 bar , which is specially difficult with small diameter membranes. The solution is generally to use a larger diameter diaphragm, which causes the volume of the model chosen to be grater than expected.  

It is advisable to consult  email fluid.flow,tech.uk@LLDIinc.net  in these cases  
FlexFlon™ modified PTFE is a Liquid Dynamics International  membrane material that does not suffer from the porosity of sintered PTFE , and is therefore provided by PulseGuard without an elastomeric bonded backing . Diaphragms designated below "DW"  are FlexFlon mtfe.

 

Type / Ordering Volume Design Pressure @93 C Connections (to pump / to sys.) Length without pipes Diameter
(and bolting)
Weight Spares Kit Part Number
 Flo-?? (Liters) (Bar) &  State Angle (mm) (mm) (kg)  SK/--
"Dia-Seal" 0.016 140 Single  0.5" NPT 70 108  ( 4 Bolt) 2 DW45  FlexFlon
               
Flo-SS 0.008 20 1/8"FNPTx 1/8"FNPT 101 120  (4 Bolt ) 5 DF63 ut
    70   101 135  ( 4 Bolt)   FD63
    140 1/8"FNPTx 1/8"FNPT 101 135  (8 Bolt) 8 DF63 + bolted  button
    280 1/4" NPTF
1/4" NPTF
139 150 (8 Bolt)   DF63 + bolted  button
    400 1/4" NPTF
1/4" NPTF
150 150 (12 bolt)   DF63 + bolted  button
               
Flo-SS 0.025 144 1/4" FNPT x  1/4" FNPT 135 158 (4 Bolt) 11 DW84
    288 1/4" FNPT x  1/4" FNPT 135 158  (8 Bolt) 18 DF84  + bolted  button
    432 1/4" FNPT x  1/4" FNPT 135 158 (12 Bolt) 24 DF84   + bolted  button
               
Flo-SS 0.05 144 3/8" FNPT x  3/8" FNPT 135 160  (4 Bolt) 14 DW90
    288 3/8" FNPT x  3/8" FNPT 135 160  (8 Bolt) 20 DF90   + bolted  button
    432 3/8" FNPT x  3/8" FNPT 135 160 (12 Bolt) 30 DF90   + bolted  button
               
Flo-SS 0.11 104 1//2" FNPT x 1/2" FNPT 145 177   (4 Bolt) 15 DW114
    207 1//2" FNPT x 1/2" FNPT 155 177 (8 bolt ) 22 DF114   + bolted  button
    310 1//2" FNPT x 1/2" FNPT 175 177 (12 Bolt) 32 DF114   + bolted  button
               
Flo-SS 0.16 100 3/4" FNPT x 3/4" FNPT 142 203 (4 Bolt) 16 DW127  + bolted  button
    200 3/4" FNPT x 3/4" FNPT 160 203 (8 Bolt) 27 DF127   + 0.25
    300 3/4" FNPT x 3/4" FNPT 171 203 (12 Bolt) 36 DF127   + bolted  button

 

BANNER between miaiature and medium volume damper

FlexOrber

MEDIUM volumes for high pressure, pulsation dampers with PTFE diaphragm membranes.
Damper 0.25 liter volume and above when designated "Z-Flo" have secondary containment sealing of an  additional primary layer  PTFE diaphragm, with telltale hazard alert porting connection that sense any fluid permeation of the diaphragm. This feature matches "sandwich" and multi layer diaphragms of  high pressure seales diaphragm head pumps.
This matching of damper features with pump feature is near mandatory for use with carcinogenic and pyroforic fluid systems.
"Z" class pulsation dampers are not inventory items.

 

Type / Ordering Volume Design Pressure @93 C Connections (to pump / to sys.) Length without pipes Diameter (and bolting) Weight Spares Kit Part Number
 Flo-?? (Liters) (Bar)  & State Angle (mm) (mm) (kg)  SK--
SoG-SS 0.25 150  & below GOTO LOW PRESSURE DAMPERS PTFE
Flo-SS 0.25 270 0.75 FNPT 200 228  (12 Bolt M24 ) 76 DF 145  + bolted  button
Flo-SS 0.25 405 0.75 FNPT 200 254  (12 bolt M 27) 80 DF 145  + bolted  button
               
SoG-SS 05 150  & below GOTO LOW PRESSURE DAMPERS PTFE
Flo-SS 0.4 270 1.0 FNPT 200 267 (8 Bolt M30} 85 DW160  
Flo-SS 0.4 405 1.0 FNPT 210 267  (12 Bolt M30} 88 DW160  
               
SoG-SS 0.66 150  & below GOTO LOW PRESSURE DAMPERS PTFE
Flo-SS 0.66 230 1.25  MNPT 250 305 (12 Bolt  M30) 129 DF175   + bolted  button
Flo-SS 0.66 350 1.25  MNPT 270 343 (12 Bolt  M33)
190
DF175   + bolted  button
               
SoG-SS 125 150  & below GOTO LOW PRESSURE DAMPERS PTFE
Flo-SS 1.0 250 1.5 MNPT 270 343 (12 Bolt  M33) 187 DW187
Flo-SS 1.0 379 1.5 MNPT 300 355 (12 Bolt M36)
210
DW187
               
SoG-SS 1.64 120  & below GOTO LOW PRESSURE DAMPERS PTFE
Flo-SS 1.3 204 1.5 MNPT 280 374 (12 Bolt M33) 219  
Flo-SS 1.3 362 1.5 MNPT 300 381 (12 Bolt M 42) 240 DW200
               

 

banner over LARGER ptfe dampers

Piping bases for larger Flexorbers

FlexOrber

LARGER volumes and pressures of high pressure pulsation dampers with PTFE diaphragms .
Larger dampers with PTFE diaphragms provide in-place cleanibility pressure pulsation interception and  volumetric frow stabilization by the use of in-line flow-through PIPING BASES.  
This method enables service of the pulsation damper that contains the diaphragm to be done by simply releasing the damper fron its piping base, without breaking the integrity of the piping system. The piping base is welded into the piping and becomes a permanent part of the system.  
Where the benefits of  pulsation dampng efficiency are not required, larger dampers may be flange faced and bulted to a flanged "T" that has been added to the system at extra cost.
WN = 37.5 Degree weld  preparation   Piping Base that stay part of piping GOTO PIPING BASE OPTIONS

 

Type / Ordering Volume Design Pressure @93 C Connections (to pump / to sys.) With Pipe Base.
(to pump / to sys.)
Length without pipes Diameter
And
(Bolts)
Weight Spares Kit Part Number
 Flo-?? (Liters) (Bar)  If  only One WN -WN (mm) (mm) (kg)  SK--
SoG-SS 2.15 90  & below GOTO LOW PRESSURE DAMPERS PTFE
Flo-SS 2.0 140 1.50F PB  Max       2" x 2" 240 330 (12 by  M27  912) 140 DW223
Flo-SS 2.0 345 1.50F PB  Max        2" x 2" 292 368  (12 by M 36  912) 202 DF223  +    bolt Button
               
SoG-SS 3.8 86  & below GOTO LOW PRESSURE DAMPERS PTFE
Flo-SS 3.0 160 1.50F PB  Max    2.5" x 2.5" 260 406  (12 by  M33  912) 220 DW268 
Flo-SS 3.0 310 1.50F Max       2.5" x 2.5" 292 432 (12 by  M 42 912)  250 DF268 +    bolt Button
                 
Flo-SS 4.0 275 2.00M Max       2.5" x 2.5" 330 432 (12 by M 36  912) 307 DW280
                 
SoG-SS 5.3 110  & below GOTO LOW PRESSURE DAMPERS PTFE
Flo-SS 5.0 172 2.50M Max       3.0" x 3.0" 386 457 (12 by M 42  B8M 364 DW305
Flo-SS 5.0 275 2.50M Max       3.0" x 3.0" 386 457  (12 by  M 42  912) 364 DF305   +    bolt Button 
                 
SoG-SS 7.2 70  & below GOTO LOW PRESSURE DAMPERS PTFE
Flo-SS 6.6 140 3.00M Max       3.0" x 3.0" 432 508  (12 by M 42  B7) 545 DF345  +    bolt Button
Flo-SS 6.6 207 3.00M Max       3.0" x 3.0" 432 508 (12 by  M 42  912) 545 DF345  +    bolt Button
                 
SoG-SS 10.0 80  & below GOTO LOW PRESSURE DAMPERS PTFE
Flo-SS 9.0 140 3.5 Max       3.5" x 3.5" 450 610 850 DF400 +    bolt Button
Flo-SS 9.0 207 3.5 Max       3.5" x 3.5" 450 610 850 DF400 +    bolt Button
                 
SoG-SS 15.0 83  & below GOTO LOW PRESSURE DAMPERS PTFE
Flo-SS 13.11 125 4.00M Max       4.0" x 4.0" 508 762 1364 DF450  +    bolt Button
Flo-SS 13.11 172 4.00M Max       4.0" x 4.0" 508 762 1364 DF450  +    bolt Button
                 



FlexOrber Pulsation Dampers with PTFE Diaphragms
Low Pressure Drawing and Size Selection Tables
High Pressure Drawing and Size Selection Tables
LP PVDF Lined for Special Compatibility

PTFE Membrane Type Pulsation Dampener Drawings / Viewsheets
Click on one of the pulse damper images below.

FlexOrber High Pressure FlexOrber Low Pressure FlexOrber Polished Stainless for Food and Drug FlexOrber PVDF Lined


*Teflon is a registered trademark of DuPont.

 

 



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