Double Diaphragm Ink Pumps

Ink Pumps

Project Info


The versatility of the double diaphragm pumps is well known. They are suitable for a wide variety of inks, varnishes, coatings, adhesives and laminates. We stock polypropylene models from inlet/outlet up to 1” (25mm). All of these units can be converted to assisted gravity return.

  • Pumps viscous inks and glues
  • 1/4", 3/8", 1/2", and 1" sizes
  • Patented lube free air system
  • Will not stall at slow speeds
  • Self priming
  • Safe for hazardous areas
  • Runs dry without damage
  • Variable flow rate
We can also supply up to 3” (78mm) double diaphragm pumps with polypropylene, stainless steel, Hastelloy, and Cast Iron construction. Accessories include carts, stainless steel tanks and lids, siphon tubes for large containers and drums, and a full range of spares for stock pumps and other brands (ARO, All-Flo, Graco, Wilden, Vers-amatic, and Yamada).

Double Diaphragm Pump Overview

4 Series Double Diaphragm4 Series Double Diaphragm Ink Pumps
Pumps viscous inks & glues
1/4″, 3/8″ 1/2″ & 1″ Sizes
Patented lube free air system
Will not stall at slow speeds
Self priming
Safe for hazardous areas
Runs dry without damage
Variable flow rate

4143   1/4″ Polypropylene/Santoprene      Manual     Drawing     Parts
4141   1/4″ Polypropylene/PTFE              Manual     Drawing     Parts
4133   3/8″ Polypropylene/Santoprene      Manual     Drawing     Parts
4131   3/8″ Polypropylene/PTFE            Manual     Drawing     Parts
4153   1/2″ Polypropylene/Santoprene      Manual     Drawing     Parts
4151 1/2″ Polypropylene/PTFE               Manual     Drawing     Parts
4173   1″ Polypropylene/Santoprene       Manual     Drawing     Parts
4171   1″ Polypropylene/PTFE                  Manual     Drawing     Parts

Double Diaphragm Pumps

Air operated double diaphragm pumps are ideal for pumping abrasive, shear-sensitive materials, and high viscosity liquids.

  • Seal less and self priming
  • Variable speed by regulating the air supply for flow adjustment
  • Runs dry without damage
  • Deadheads against closed discharge, the pump simple stops working until discharge opens
  • Inherently explosion proof
  • Versatile for solvent or water based varnishes, adhesives, coatings and thick inks
  • Multiple porting options
  • A Surge suppressor will eliminate the pulsation inherent with all makes and models of Diaphragm Pumps
  • Air and electric mixers
  • Stainless steel lid and siphon tube

Stainless Steel Ink Tanks and Lids

powerwise double diaphragm pumpsQuality stainless steel containers are fabricated to the highest standards with a mirror finish; tapered sides for stocking, castors and handles with the Powerwise Interchangeable lid system. (The standard 12″ (304 mm) lid used on all five gallon pumps fits onto the larger lid allowing the flexibility of removing the pump easily and using a different size container.)

10 gallon (40 liters) and 20 gallon (80 liters) are kept in stock. Powerwise have their own engineering team that can work with you to design a tank and system for your individual needs. Ask about our stainless steel pressure vessels or jacketed tanks for controlling heating and cooling of inks.

Powerwise has a wide variety of stainless steel lids that are manufactured to suit a standard centrifugal pump and by-pass mounting, mixers, peristaltic, diaphragm pumps and Viscosity Controllers.