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SurgeShield™ Pulsation Dampeners
Pulsation Dampener and ASME Certified Surge Vessel

Standard 15, 25, and 37 gallon dampener series are designed to act as shock absorbers for your peristaltic pumps while also serving as small, standardized bladder surge vessels. Prevent pipe and pump damage as well as costly repairs with these durable buffers against the damaging effects of water hammer and pulsation from any large positive displacement pumps.

Product shown with optional support legs.

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PROTECT YOUR PUMP SYSTEM

Pulsation occurs in all positive displacement pump systems, the magnitude of which is determined by changes in fluid velocity (pump speed), type of pump, and pipe diameter. Transient events can happen during pump start-up or shut-down and rapid opening/closing of valves; often referred to as “surge” or “water hammer.” Water hammer and Pulsation can cause catastrophic system damage such as pump and valve deterioration, pipeline failure, and loss of system control—all of which cost time and money to repair.

SurgeShield Vessels are an essential component in your pump system. Their primary function is to absorb or release the energy that results from these events, offering long-term protection that can save significant repair and replacement costs.

  • Maintains pre-charge pressure automatically, emptying and refilling when needed to achieve balanced pressure.
  • Chargeable air control, set the charge to the desired pressure and remove the compressed gas.
  • Durable exterior finish for longevity.
  • Anti-extrusion button prevents bladder from being forced out due to increased pressure.
  • Lifting lugs for simpler maneuvering.
  • 1/2" NPT drain connection on inlet flange.
  • 1/2" NPT PSV/instrumentation connection on inlet flange.
  • ASME UM-Stamp certification available (Division VIII, Section I).
  • Slim, space concious design available.
  • Nameplate for easy identification.
  • Proudly made in the USA.

HOUSING MATERIALS: Stainless Steel, Carbon Steel
BLADDER MATERIALS: PVC, Urethane
FINISH: Primer and 2-coat epoxy on exterior
CORROSION ALLOWANCE: Carbon: 0.125"
CAPACITIES: 15, 25, 37 gallons (57, 95, 140 L)
INLET SIZES: 6"
INLET TYPES: NPS
MAX PRESSURE RATING: 250 PSIG
OPTIONS: Support legs, weld pads, flange bolt braces, laser etching
CERTIFICATIONS & TESTING: ATEX, ASME UM-Stamp to Division VIII, Section I standards

DIMENSIONS

Size W H
15 gallon 25 in
(635 mm)		 F 26 in
F (660 mm)
25 gallon 25 in
(635mm)		 F 36 in
F (914 mm)
37 gallon 25 in
(635mm)		 F 48 in
F (1219 mm)

ADDITIONAL BLADDER MATERIAL INFORMATION

PVC (F-1) Technical Specifications
Material Description: Modified vinyl based terpolymer. Formulation meets specifications of ANSI/NSF61 and AWWA D130.
Available Thicknesses: 0.020”, 0.040”, 0.050”, 0.065”, 0.080”, 0.100”, 0.125”, 0.187”, 0.250” Singly ply, extruded
Typical Applications: Corrosion resistant against most inorganic acids, in a wide concentration range, against caustic, and a limited number of organic chemicals. Primary use is for potable water. Uses also include water treatment and containment of acetic acid, vinegar, sugar solutions, molasses, phosphoric acid, detergents, wine, pharmaceutical materials, bleach, fruit preserves, jam, syrup, soft drinks, animal feed stock, whiskey, etc.

PVC (J-22) Technical Specifications
Material Description: Modified vinyl-based polymer, including up to 3% polyvinylidene chloride, and polymeric non-migrating plasticizers.
Available Thicknesses: 0.040”, 0.065”, 0.080 Singly ply, extruded
Typical Applications: Extremely corrosion resistant against most inorganic acids, in a wide concentration range, against caustic, and a limited number of organic chemicals. To be used for almost all plating, etching, leaching solutions, all fertilizers, bleach steel pickling, for water reservoir lining, water purification, water treatment chemicals, paper chemicals, etc.

Urethane (S-1) Technical Specifications
Material Description: Modified urethane elastomeric cross-linked material with additives to improve chemical and weathering resistance.
Available Thicknesses: 0.015”, 0.030”, 0.040”, Non-backed
Typical Applications: Corrosion resistant against most organic solvents, alcohols, ketones, gasoline, jet fuel, oil, etc. Excellent for applications where abrasion resistance is desirable. Has excellent retention of physical and chemical properties at very low temperatures including cold crack, abrasion resistance, and resistance to oil, gasoline, jet fuel, etc.