Installation3-2 1998 Nordson CorporationAll rights reserved106 588DIssued 8/98Manual 1-12Cavitation, or siphoning, causes suction problems. Pressure changesoccur when there is a restriction on the suction side of the pump. If thepump does not fully prime on the up stroke, it will race or dive on thebeginning of the down stroke. Hydraulic shock and pressure spikeoccurs when the plunger contacts fluid. This reduces the life of thepackings, plunger, and siphon check valves. Using the pump inhigh-viscosity and flow applications increases the chances of cavitation.To prevent cavitation, provide a positive pressure at the pump inlet. Usethese methods: If possible, elevate the material supply above the pump. Immerse the pump inlet. Use bucket or drum mounting kits. Use a positive pressure supply system to feed the pump. Normalsupply pressures are 0.35−1.1 bar (5−15 psi).Make sure that the siphon housing ball retainer is installed correctly. Iflow-viscosity materials are being applied, the angled part of the ballretainer must be facing down. If high-viscosity materials are beingapplied, the angled part of the ball retainer must be facing up.NOTE: The pump shipped from the factory is for use with low-viscositymaterials.Priming problems occur when there are restrictions in the siphon strainer,hose, or rod. Elevating the pump above the material supply can causeloss of suction. Try these methods for reducing restrictions on thesuction side of the pump: Use a pressurized supply system. If possible, elevate the material supply above the pump. Immerse the pump inlet into the material supply. Use bucketmounting kits. Keep the siphon strainer clean. Do not use a siphon strainer for high-viscosity materials. Use the largest and most practical ID siphon hose. Use the shortest and most practical siphon hose.CavitationPriming

Issued

safety symbols

intended use

Installation

Operation

Less-Obvious Dangers

Action in the Event of a System or Component Malfunction

Material and Solvent Precautions

Manual

Disposal

Safety Label

Optional Equipment

General Pump Information

Cavitation

Mounting Requirements

D Manual

initial startup

Solvent Chamber Fluids

Initial Startup

How to Remove the Pump from its Mount

Air Valve

Air Motor

Piston Disassembly

Cleaning and Inspecting Parts

Connecting Rod and Plunger Cap

Siphon Housing

Plunger

Installing the Packing Glands

and 16/32:1 Hydraulic Sections

Type D or F Packing Glands

How to Install the Pump to its Mount

Series-32 Air Motor Section

Series-64 Air Motor Section

Hydraulic Section

Kit List

Ball Check Service Kits

Packing Gland Service Kits

and 16/32:1 Hydraulic Section Packing Gland G

Air Accessory Module

Siphon Accessory Module

specifications

Technical Data

Capacities

Packing Gland and Solvent Chamber Fluid Guide

Air Consumption

Sound Level Summary

declaration of conformity

Nordson 32 Product Manual