Pulsation Dampeners

Positive Displacement (PD) pumps create pulsation and hydraulic shock due to the reciprocating nature of their stroking action, potentially damaging the entire pumping system. SprayFlo’s supplies Pulsation Dampeners that remove virtually all hydraulic shock, and thus enhancing the all-around performance and reliability of fluid handling equipment in industrial, chemical transfer, and precision metering applications.

Benefits

  • Produces a near steady fluid flow up to 99% pulsation and vibration free
  • Protects pipes, valves, fittings, meters and in-line instrumentation from destructive pulsations, vibrations, cavitation, and water hammer
  • Creates steady and continuous flow when dosing, blending or proportioning additives
  • Insures accuracy, longevity, and repeatability of in-line meters
  • Enables uniform application of material in spraying and coating systems
  • Reduces product agitation, foaming, splashing and degradation of product

Features:

  • Sizes available for all positive displacement pumps
  • Simple, reliable design and quick installation
  • Easy in-line maintenance
  • Pressure ranges up to 311 BAR available
  • Temperature ranges from -51°C to 176°C available from stock
  • Custom models available (please contact SprayFlo for more information)
  • Bodies and bladders available in a full range of chemical resistant materials
Markets Served

  • Chemical Process
  • Pulp, Paper & Textile
  • Gas, Oil, & Petrochemical
  • Biotech/Pharmaceutical
  • Paint & Coating
  • Food & Beverage
  • Consumer Products
  • Water Treatment
Applications

  • Transferring
  • Filtering
  • Printing
  • Dosing
  • Filling
  • Metering
  • Spraying
  • Coating
  • Injecting
  • Mixing

Bladder Options

Bladder Material
Neoprene
Buna-N
EPDM
Viton
PTFE
Application Recommendations
Good abrasion resistance and flex; use with moderate chemicals
Good flex life; use with petroleum, solvents and oil-based fluids
Good for extreme cold; good chemical resistance with ketones, caustics
Good for hot & aggressive fluids; use with aromatics, solvents, acids & oils
Bellows design; excellent flex life; use with highly aggressive fluids

Air Control Options
Chargeable
The chargeable model has a Schrader-type charging valve that allows for a predetermined pressure charge to be applied and held in the dampener. No permanent source of compressed gas is required to be attached to the unit.
The chargeable models are used primarily with metering pumps for pulsation dampening.
 
J-Style
With this type of control, the stabilizer will work effectively with either a positive or negative inlet condition. The inlet stabilizer air control consists of a compound pressure gauge, a pressure/vacuum tight ball valve, and a venturi valve. When compressed air is passed through the venturi valve at high speed, a low pressure area is created, which is used to evacuate the air from the stabilizer, and thus creating an internal vacuum. Conversely, when the flow of air through the venture valve is diverted into the stabilizer, a pressure charge is obtained. When pump inlet conditions are optimized, pump efficiency is maximized.
 
Principle of Operation
Discharge Pulsation
Compressed air or gas is introduced into the air chamber of the pulsation dampener to a specified pressure. The gas is entrapped by the elastomeric bladder, which prevents contact between the process fluid and compressed gas. (Without the bladder, the gas would dissolve into the fluid, dampening would become ineffective, and product contamination would occur due to absorbed gas.)
During the pump discharge stroke, fluid enters the wetted chamber of the pulsation dampener displacing the bladder, compressing the gas and absorbing the shock. During pump inlet stroke, liquid pressure decreases, the dampener gas expands, pushing fluid back into the process line. System shock and pulsation is significantly reduced.
For pumps with multiple pumping chambers and overlapping discharge strokes, maximum pulsation occurs during the overlap portion between adjacent pumping chambers. Peak pressures produced at the pump discharge are absorbed by the pulsation dampener (compressing gas on the air side of the bladder). Pressure dips are filled in by the pulsation dampener as the compressesd gas expands, providing fluid back into the system. Very smooth discharge pressure and flow are the result.
 
Inlet Stabilization
Without a sufficient supply of fluid, a pump will not perform efficiently. Reciprocating pumps emit high frequency pressure waves created by the inlet valves opening and closing. In high inlet pressure situations, a pump’s inlet valves create water hammer by the opening and closing action; increasing pipe and pump damage and draining system efficiency. In suction lift and horizontal suction applications, the pump’s inlet valve action actually decreases inlet fluid pressure. A “starved” or cavitating pump will be unable to produce specified flow rates due to the incomplete filling of cylinders and liquid chambers; pressure available to fill pump chambers may not meet NPSHr of the pump throughout 360° of pump shaft rotation. In addition, cavitation will result in the premature failure of pump parts.
An inlet stabilizer at the pump’s suction will act as an accumulator, reducing pressure fluctuations and aiding in filling the pump head with fluid during each inlet stroke. The inlet stabilizer removes, or fills in the pressure dips, or “negative peaks” at the pump inlet so flow demand (NPSHr) can be met throughout 360° of shaft rotation.

 

0.06 Liter Pulsation Dampeners

  • 1/2” FBSPT (add B to the end of the part) /FNPT (add A to the end of the part)
  • Bolted fasteners
  • Choice of housing construction and bladder materials
  • Chargeable air control standard; to configure any of these pulsation dampeners with “J” style control (for inlet stabilization applications), order kit 110-901 as an add-on item. Operating pressure range of unit configured with “J” style control is vacuum to 30 PSIG.
Polypropylene Construction

Bladder Max Bar Temp °C Part Number
Buna-N 10 0-79 110-000
Neoprene 10 0-79 110-002
EPDM 10 0-79 110-003
Viton 10 0-79 110-005
PTFE 10 5-79 110-008
PVDF Construction

Bladder Max Bar Temp °C Part Number
Buna-N 10 -12-88 110-020
Neoprene 10 -12-93 110-022
EPDM 10 -12-121 110-023
Viton 10 -12-121 110-025
PTFE 10 5-121 110-028
CS Construction

Bladder Max Bar Temp °C Part Number
Buna-N 69 -12-88 110-040
Neoprene 69 -18-93 110-042
EPDM 69 -40-140 110-043
Viton 69 -23-177 110-045
PTFE 41 5-121 110-048
SST Construction

Bladder Max Bar Temp °C Part Number
Buna-N 69 -12-88 110-060
Neoprene 69 -18-93 110-062
EPDM 69 -40-140 110-063
Viton 69 -23-177 110-065
PTFE 41 5-121 110-068
Hastelloy C Construction

Bladder Max Bar Temp °C Part Number
Buna-N 69 -12-88 110-090
Neoprene 69 -18-93 110-092
EPDM 69 -40-140 110-093
Viton 69 -23-177 110-095
PTFE 41 5-121 110-098

 

0.16 Liter Pulsation Dampeners

  • 1/2” FBSPT (add B to the end of the part) /FNPT (add A to the end of the part)
  • Bolted fasteners
  • Choice of housing construction and bladder materials
  • Chargeable air control standard; to configure any of these pulsation dampeners with “J” style control (for inlet stabilization applications), order kit 110-901 as an add-on item. Operating pressure range of unit configured with “J” style control is vacuum to 30 PSIG.
  • Standard Inlet Stabilizer with “J” Style Control available in PVC Construction
Polypropylene Construction

Bladder Max Bar Temp °C Part Number
Buna-N 10 0-79 110-200
Neoprene 10 0-79 110-202
EPDM 10 0-79 110-203
Viton 10 0-79 110-205
PTFE 10 0-79 110-208
PVDF Construction

Bladder Max Bar Temp °C Part Number
Buna-N 10 -12-88 110-220
Neoprene 10 -12-93 110-222
EPDM 10 -12-121 110-223
Viton 10 -12-121 110-223
PTFE 10 5-121 110-228
CS Construction

Bladder Max Bar Temp °C Part Number
Buna-N 69 -12-88 110-240
Neoprene 69 -18-93 110-242
EPDM 69 -40-140 110-243
Viton 69 -23-177 110-245
PTFE 10 5-121 110-248
SST Construction

Bladder Max Bar Temp °C Part Number
Buna-N 69 -12-88 110-260
Neoprene 69 -18-93 110-262
EPDM 69 -40-140 110-263
Viton 69 -23-177 110-265
PTFE 10 5-121 110-268
Hastelloy C Construction

Bladder Max Bar Temp °C Part Number
Buna-N 69 -12-88 110-290
Neoprene 69 -18-93 110-292
EPDM 69 -40-140 110-293
Viton 69 -23-177 110-295
PTFE 10 5-121 110-098
Standard Inlet Stabilizer with “J” Style Control
PVC Construction

Bladder Max Bar Temp °C Part Number
Buna-N 2 0-60 110-210-J
Neoprene 30 2 0-60 110-212-J
EPDM 2 0-60 110-213-J
Viton 2 0-60 110-215-J
PTFE 2 0-60 110-218-J

 

0.19 Liter Pulsation Dampeners

  • 1/2” FBSPT (add B to the end of the part) /FNPT (add A to the end of the part)
  • PTFE: Bolted fasteners. Buna-N, EPDM, and Viton: Ring fasteners
  • Choice of bladder materials
  • Chargeable air control
SST Construction

Bladder Max Bar Temp °C Part Number
Buna-N 275 -12-88 110-360
EPDM 275 -40-140 110-363
Viton 275 23-177 110-365
PTFE 137 5-121 110-368

 

0.1 – 15 Liter Pulsation Dampeners

  • 1/2-2” FBSPT (add B to the end of the part) /FNPT (add A to the end of the part)
  • One piece bladder material: Nitrile, EPDM, and Viton B :
Volume Pressure Connection Part Number
(liters) (bar) NPT/BSPT female
0.25 254 1/2″ 110-989
0.5 215 1″ 110-990
1.0 188 1 1/2″ 110-991
2.0 169 1 1/2″ 110-992
3.5 139 1 1/2″ 110-993
5.0 86 2″ 110-994
5.0 147 2″ 110-995
10 86 2″ 110-996
10 147 2″ 110-997
15 80 2″ 110-998
15 116 2″ 110-999

 

0.58 Liter Pulsation Dampeners

  • 1” FBSPT (add B to the end of the part) /FNPT (add B to the end of the part)
  • CS, SST, and Hastelloy C : Bolted fasteners. Polypropylene and PVDF: Metal ring flange fasteners
  • Choice of housing construction and bladder materials
  • Chargeable air control standard; to configure any of these pulsation dampeners with “J” style control (for inlet stabilization applications), order kit 110-902 as an add-on item. Operating pressure range of unit configured with “J” style control is vacuum to 30 PSIG.
Polypropylene Construction

Bladder Max Bar Temp °C Part Number
Buna-N 10 0-79 110-600
Neoprene 10 0-79 110-602
EPDM 10 0-79 110-603
Viton 10 0-79 110-605
PTFE 10 0-79 110-608
PVDF Construction

Bladder Max Bar Temp °C Part Number
Buna-N 10 -12-88 110-220
Neoprene 10 -12-93 110-222
EPDM 10 -12-121 110-223
Viton 10 -12-121 110-223
PTFE 10 5-121 110-228
CS Construction

Bladder Max Bar Temp °C Part Number
Buna-N 69 -12-88 110-640
Neoprene 69 -18-93 110-642
EPDM 69 -40-140 110-643
Viton 69 -23-177 110-645
PTFE 41 5-121 110-648
SST Construction

Bladder Max Bar Temp °C Part Number
Buna-N 69 -12-88 110-660
Neoprene 69 -18-93 110-662
EPDM 69 -40-140 110-663
Viton 69 -23-177 110-665
PTFE 41 5-121 110-668
Hastelloy C Construction

Bladder Max Bar Temp °C Part Number
Buna-N 69 -12-88 110-690
Neoprene 69 -18-93 110-692
EPDM 69 -40-140 110-693
Viton 69 -23-177 110-695
PTFE 41 5-121 110-698

 

1.3 Liter Pulsation Dampeners

  • 1” FBSPT (add B to the end of the part) /FNPT (add B to the end of the part)
  • Standard Inlet Stabilizer with “J” Style Control“
  • Plastic ring flange fasteners
  • Choice of bladder materials
PVC Construction

Bladder Max Bar Temp °C Part Number
Buna-N 2 0-60 110-710-J
Neoprene 2 0-60 110-712-J
EPDM 2 0-60 110-713-J
Viton 2 0-60 110-715-J
PTFE 2 0-60 110-718-J

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Sprayflo pty ltd

Our technical support staff can oversee system design and optimum product selection to:
  • To improve the quality and efficiency of operations
  • To protect and enhance the quality of finished products
  • To maximize health and safety conditions
  • To provide a high quality of service
Please contact us so we can assist you in choosing the right product for your application.

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