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• Dampener Drawings and Animations
  • Flow Through Flexible Elastomer Tube
  • HP System Liquid in Elastomer Membrane
  • LP System Liquid in Elastomer Membrane
  • Precharge Gas in Elastomer Bladder
  • High Pressure FlexFlon PTFE Diaphragm
  • Low Pressure FlexFlon PTFE Diaphragm
• Pulsation Dampeners
  • PTFE Diaphragm / Teflon Membrane Types
    • AODD Pump Dampeners with Plastomer Diaphragm
    • Diaphragm Metering Pump Dampeners with Plastomer Diaphragm
    • Hose Pump Dampeners with Plastomer Diaphragm
    • Lobe Pump Dampeners with Plastomer Diaphragm
    • Low Pressure Dosing Pump Dampeners with Plastomer Diaphragm
    • Multi Diaphragm Metering Pump Dampeners with Plastomer Diaphragm
    • Packed Plunger Pump Dampeners with Plastomer Diaphragm
    • Progressive Cavity Pump Dampeners with Plastomer Diaphragm
    • Vane Pump Dampeners with Plastomer Diaphragm
  • Elastomer Bladder / Flex-Tube Types
    • Flex-Tube - Acceleration Head and Interception Type
    • Nitrogen Gas in Elastomer Bladder Type
    • System / Process Liquid in Elastomer Bladder Type
  • Acoustic / No Moving Parts Types
    • Frequency Reduction Type
    • Phase Change Type
    • Pulse Dispersal Type
    • Pulse Intensification then Dissipation Type
• Pulse Dampening, Safety, Applications
  • Snubbing, Surge Suppressors, and Shock Absorbing
    • Flow Fluctuation / Suction Systems - Pressure Pulsation / Supply Lines
    • Pressure Pulsation Pulse Signatures
    • Pressure Pulsation Dampeners for Transients and their Interception
    • Pulsation Dampeners for Amplitude of Pressure Wave Spikes
    • Pulsation Dampeners and Pump Vendor Responsibilities
    • Acceleration Head / Pressure that a System Could Create
    • Dampener Flow Smoothness Requirements
  • Pressure Pulsation Dampener Safety
    • Checking Dampener Pressure Rating Safety
    • Checking Required Pulsation Dampener Performance
    • Pre-Filling Dampeners with Nitrogen Cushion Gas
    • Pre-Filling Pulsation Dampeners at Elevated Pressures
    • Pre-Filling Pulsation Dampeners with Pin Core Valves
    • Safe Levels of Pulsation for Preventing Fatigue
    • Dampener Safety and Gas Overload Protection
    • Pulsation Dampener Safety and Liquids
    • Pulsation Dampener Safety and Piping
    • Pre-Filling Pulsation Dampeners with Strut Valves
  • Pulsation Dampener Applications
    • Shock Alleviation / Multi-Head Interaction
    • Double Layer, 2 Sheet PTFE, Diaphragm Metering
    • Flow Fluctuation Smoothing
    • Suction Problems with High Pressure Systems
    • Packed Plunger / Piston Pumps
    • Packed Plunger / Piston Pumps 2
    • Peristaltic and Tube or Hose Pumps
    • Plastic / A.O.D.D. Pump Systems
    • Pressure Pulse Dampening
    • Test and Injection Systems
• Dampeners by Pump

Pulsation Dampener - Large Integral ANSI B16.5 Flange Face

THIS "DRAWING" IS FOR:
Pulsation Dampeners with an elastomeric separator between process liquid and "gas spring" designed in accordance with historic ASME VIII Div 1 pressure vessel code.

The materials are "SA and "SB" etc class materials listed in old ASME Div.2 . for allowable working stress levels.

Allowable working stress levels have been increased by the "ASME" . Accordingly you may find that we are using older versions of code in order to ensure historic levels of safety.

Be aware that the levels of safety resulting from the EC "pressure equipment directive" and the imposition of for example "Euro Norm" 5500, and or their welding standards, which omit
root side and cap bend tests, and also allow the use of materials with very low levels of ductility may be, thoroughly unsafe for pulsation dampening equipment. This finding is because a pulsation dampener is by definition subject to a highly cyclic duty. Highly cyclic duties should use lower working stress levels because of the danger of fatigue failure. These low cost European new practices, are as yet unproven for duty as a pulsation dampener.

Low cost European dampeners, are not "apples to apples" with PulseGuard Inc. equipment. Nor is "current edition" U stamped coded equipment comparable with the equipment that we have produced in the days when being a code certified shop was something to be proud of.

We believe that our own historic standards provide greater safety than En or ASME based equipment. Anyone requiring that we quote for equipment in accordance with or certified to EN or ASME standards does so at their own risk.