DIAPHRAGM PUMP SURGE SUPPRESSORS
Versamatic’s diaphragm pump surge suppressors virtually eliminate undesirable pulsation from pumping, as well as provide virtually pulse-free discharge flow for steadier pressure with less system vibration and noise. They are “Universal” (can be used with any pump brand) and easily installed tools for quieter, surge-free flows and steady liquid pressures protecting both pumping fluids and process equipment. Delivering steadier pressure that is easier on your piping system, Versamatic surge suppressors are worry-free upon installation and:
- Offer outstanding surge suppression: Regardless of pump pressure, they automatically maintain a constant volume of air to dampen pulsations.
- Self-charge and self-vent (VDC/VTA Only): This promotes ease of use and maximum efficiency.
- Have less system vibration and noise: Reduces piping system wear and tear.
- Provide chemical compatibility: Available in a variety of sizes and materials.
- Are easy to install: Their simple installation makes them the efficient, hassle-free choice.
We recommend using a surge suppressor with every pump in all applications to extend product life and improve overall performance.

How A Surge Dampener Works
All air-operated double-diaphragm (AODD) pumps create pulsations of product fluid as they operate. A surge suppressor uses a flexible diaphragm to separate a liquid chamber from a compressed air chamber. As the product fluid pulse enters the liquid chamber, it displaces the diaphragm upward into the compressed air chamber. The force of the compressed air slows the speed of the diaphragm’s displacement and effectively dampens the fluid pulsation.
Versamatic's Surge Suppressors for AODD Pumps
Versamatic offers three types of surge suppressors for your critical application needs:

Sizes: ½”, ¾” & 1”
Wetted Materials: Polypropylene, PVDF, Aluminum & Stainless Steel
Non-Wetted Materials: Polypropylene
Diaphragm Material: PTFE
Porting Options: NPT, BSP, ANSI Flange (1” only)
Air Chamber Pressurization: Manual
Air Inlet Size: 1/8” NPT

Sizes: 1”, 1 ½”, 2” & 3”
Wetted Materials: Polypropylene
Non-Wetted Materials: Aluminum
Diaphragm Materials: Santoprene, Buna, Neoprene & PTFE
Porting: Universal ANSI/DIN Flange
Air Chamber Pressurization: Automatic
Air Inlet Size: 1/8” NPT

Sizes: 1”, 1 ½”, 2” & 3”
Wetted Materials: Aluminum, Cast Iron (except 1”) & Stainless Steel
Non-Wetted Materials: Aluminum
Diaphragm Materials: Santoprene, Buna, Neoprene, Viton, & Neoprene w/ PTFE overlay & EPDM (2” & 3” Only)
Porting: NPT & BSPT
Air Chamber Pressurization: Automatic
Air Inlet Size: 1/4” NPT
*ATEX Available
Performance Guarantees
Chemical Compatibility Guide
To determine chemical compatibility with this accessory, please refer to our Chemical Compatibility Guide.
LITERATURE
VDA Surge Suppressor Service Manual
VDC Surge Suppressor Service Manual
