Graco ChemSafe 205 Operation manual

Instructions-Parts
ChemSafe™ 205
Air-Operated Diaphragm Pump 334792E
EN
1/4–inch high purity pump for industrial applications.For professional use only.
Not approved for use in European explosive atmosphere locations.
Important Safety Instructions
Read all warnings and instructions in this manual. Save these
instructions.
100 psi (0.7 MPa, 7.0 bar) Maximum Air
Supply Pressure
100 psi (0.7 MPa, 7.0 bar) Maximum
Fluid Working Pressure
PROVEN QUALITY. LEADING TECHNOLOGY.

Contents
Warnings ........................................................... 3
Configuration Number Matrix............................... 6
Installation.......................................................... 8
General Information ..................................... 8
Tighten Fasteners ........................................ 8
Tips to Reduce Cavitation............................. 8
Mount The Pump ......................................... 9
Ground The System ..................................... 10
Air Lines...................................................... 10
Air Exhaust Ventilation ................................. 11
Fluid Supply Line ......................................... 12
Fluid Outlet Line........................................... 12
Operation........................................................... 13
Tighten Fasteners ........................................ 13
Flush the Pump Before First Use .................. 13
Start and Adjust the Pump............................ 13
Pressure Relief Procedure............................ 14
Pump Shutdown .......................................... 14
Maintenance ...................................................... 15
Maintenance Schedule................................. 15
Lubrication................................................... 15
Tighten Threaded Connections ..................... 15
Flushing and Storage ................................... 15
Troubleshooting.................................................. 16
Repair................................................................ 18
Disassemble the Fluid Section ...................... 18
Disassemble the Center Section ................... 19
Reassemble the Center Section.................... 19
Reassemble the Fluid Section....................... 20
Torque Instructions ............................................. 22
Notes................................................................. 23
Parts.................................................................. 24
Kits.................................................................... 26
Dimensions ........................................................ 27
Performance Charts............................................ 28
Technical Data ...................................................29
Graco Standard ChemSafe Pump
Warranty............................................... 30
2334792E

Warnings
Warnings
The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The
exclamation point symbol alerts you to a general warning and the hazard symbols refer to procedure-specific
risks. When these symbols appear in the body of this manual or on warning labels, refer back to these
Warnings. Product-specific hazard symbols and warnings not covered in this section may appear throughout
the body of this manual where applicable.
WARNING
FIRE AND EXPLOSION HAZARD
Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. To help
prevent fire and explosion:
• Use equipment only in well ventilated area.
• Eliminate all ignition sources; such as pilot lights, cigarettes, portable electric lamps, and
plastic drop cloths (potential static arc).
•Keepwork
area free of debris, including solvent, rags and gasoline.
• Do not plug or unplug power cords, or turn power or light switches on or off when flammable
fumes are present.
• Ground all equipment in the work area. See Grounding instructions.
•Useonly
grounded hoses.
• Hold gun firmly to side of grounded pail when triggering into pail. Do not use pail liners unless
they are antistatic or conductive.
•Stop operation immediately if static sparking occurs or you feel a shock.Do not use
equipment until you identify and correct the problem.
• Keepaw
orking fire extinguisher in the work area.
• Route exhaust away from all ignition sources. If diaphragm ruptures, fluid may be exhausted
with air.
Static charge may build up on plastic parts during cleaning and could discharge and ignite
flammable vapors. To help prevent fire and explosion:
• Clean plastic parts only in well ventilated area.
• Do not cleanwithadrycloth.
• Do not operate electrostatic guns in equipment work area.
PRESSURIZED EQUIPMENT HAZARD
Fluid from the equipment, leaks, or ruptured components can splash in the eyes or on skin
and cause serious injury.
•Fol
low the Pressure Relief Procedure when you stop spraying/dispensing and before
cleaning, checking, or servicing equipment.
• Tighten all fluid connections before operating the equipment.
• Check hoses, tubes, and couplings daily. Replace worn or damaged parts immediately.
334792E 3

Warnings
WARNING
EQUIPMENT MISUSE HAZARD
Misuse can cause death or serious injury.
• Do not operate the unit when fatigued or under the influence of drugs or alcohol.
• Do not exceed the maximum working pressure or temperature rating of the lowest rated
system component. See Technical Data in all equipment manuals.
• Use fluids and solvents that are compatible with equipment wetted parts. See Technical Data
in all equipment manuals. Read fluid and solvent manufacturer’s warnings. For complete
information about your material, request MSDS from distributor or retailer.
• Do not leave the work area while equipment is energized or under pressure.
•Turnoffall
equipment and follow the Pressure Relief Procedure when equipment is not in use.
• Check equipment daily. Repair or replace worn or damaged parts immediately with genuine
manufacturer’s replacement parts only.
• Do not alter or modify equipment. Alterations or modifications may void agency approvals
and create safety hazards.
•Makesure
all equipment is rated and approved for the environment in which you are using it.
• Use equipment only for its intended purpose. Call your distributor for information.
• Route hoses and cables away from traffic areas, sharp edges, moving parts, and hot surfaces.
• Do not kink or over bend hoses or use hoses to pull equipment.
• Keep children and animals away from work area.
• Comply with all applicable safety regulations.
THERMAL EXPANSION HAZARD
Fluids subjected to heat in confined spaces, including hoses, can create a rapid rise in pressure
due to the thermal expansion. Over-pressurization can result in equipment rupture and serious
injury.
• Open a valve to relieve the fluid expansion during heating.
• Replace hoses proactively at regular intervals based on your operating conditions.
PLASTIC PARTS CLEANING SOLVENT HAZARD
Many solvents can degrade plastic parts and cause them to fail, which could cause serious
injury or property damage.
• Use only compatible water-based solvents to clean plastic structural or pressure-containing
parts.
•SeeTechnical Data in this and all other equipment instruction manuals. Read fluid and
solvent manufacturer’s MSDSs and recommendations.
4334792E

Warnings
WARNING
TOXIC FLUID OR FUMES HAZARD
Toxic fluids or fumes can cause serious injury or death if splashed in the eyes or on skin,
inhaled, or swallowed.
• Read MSDSs to know the specific hazards of the fluids you are using.
• Route exhaust away from work area. If diaphragm ruptures, fluid may be exhausted into
the air.
• Store hazardous fluid in approved containers, and dispose of it according to applicable
guidelines.
BURN HAZARD
Equipment surfaces and fluid that’s heated can become very hot during operation. To avoid
severe burns:
• Do not touch hot fluid or equipment.
PERSONAL PROTECTIVE EQUIPMENT
Wear appropriate protective equipment when in the work area to help prevent serious injury,
including eye injury, hearing loss, inhalation of toxic fumes, and burns. This protective
equipment includes but is not limited to:
•Protect
ive eyewear, and hearing protection.
• Respirators, protective clothing, and gloves as recommended by the fluid and solvent
manufacturer.
334792E 5

Configuration Number Matrix
Configuration Number
Matrix
Check the identification plate (ID) for the
Configuration Number of your pump. Use the
following matrix to define the components of your
pump.
Sample Configuration Number: 205PT-P01APT3PTPTPOPT
205PT P01A PT3 PT PT PO PT
Pump
Model
Center
Section
and Air
Valve
Fluid
Covers
and
Manifolds
Seats Balls Diaphragms Manifold and Seat Seals
Pump Center Section and Air
Valve Material
Fluid Covers and Manifolds
205PT
1/4 in.PTFE
P01A Polypropylene
center with npt
air inlet
PT3 PTFE, npt
205 UH
1/4 in. UHMWPE
P03A Polypropylene
centerwith
bspt air inlet
PT4 PTFE, bspt
UH3 UHMWPE, npt
UH4 UHMWPE, bspt
Seat Material Ball Material Diaphragm Material Manifold and Seat
Seal Material
PT PTFE PT PTFE BN Buna NPT PTFE
EP EPDM
PO PTFE Overmolded
6334792E

Configuration Number Matrix
Models
Model Pump Air & Fluid
Connection
Threads
Fluid Covers &
Manifolds
Balls &
Seats
Diaphragm Manifold Seal
24X430 bspt
24X429 1/4 in. PTFE npt PTFE
24X511 bspt
24X509 npt
PTFE/EPDM
Overmolded
24X532 bspt
24X533 npt EPDM
24X508 bspt
24X507
1/4 in.
UHMWPE
npt
UHMW
PTFE
Buna N
PTFE
334792E 7

Installation
Installation
General Information
The Typical Installation shown is only a guide for
selecting and installing system components. Contact
your Graco distributor for assistance in planning a
system to suit your needs. Always use Genuine
Graco Parts and accessories. Be sure all accessories
are adequately sized and pressure rated to meet the
system’s requirements.
Reference letters in the text, for example (A), refer to
the callouts in the figures.
Variations in color between the plastic components
of this pump are normal. Color variation does not
affect the performance of the pump.
Storage: Pumps that are not put into operation
upon delivery must be stored appropriately. See
Flushing and Storage, page 15.
Tighten Fasteners
Before mounting and using the pump for the
first time, check and retorque all external bolts.
Remove all protective bolt covers (37). Follow
Torque Instructions, page 22, to tighten all bolts.
Replace the bolt covers (37). After the first day of
operation, retorque the bolts. Retorque the bolts if the
pump has been idle for an extended time, been used
in thermal cycling applications, been disassembled,
or if there is a large difference between environmental
temperatures and fluid temperatures.
Tips to Reduce Cavitation
Cavitation in an AODD pump is the formation and
collapse of bubbles in the pumped liquid. Frequent
or excessive cavitation can cause serious damage,
including pitting and early wear of fluid chambers,
balls, and seats. It may result in reduced efficiency of
the pump. Cavitation damage and reduced efficiency
both result in increased operating costs.
Cavitation depends on the vapor pressure of the
pumped liquid, the system suction pressure, and the
velocity pressure. It can be reduced by changing any
of these factors.
1. Reduce vapor pressure: Decrease the
temperature of the pumped liquid.
2. Increase suction pressure:
a. Lower the installed position of the pump
relative to the liquid level in the supply.
b. Reduce the friction length of the suction
piping. Remember that fittings add friction
length to the piping. Reduce the number of
fittings to reduce the friction length.
c. Increase the size of the suction piping.
3. Reduce liquid velocity: Slow the cyclic rate of
the pump.
Pumped liquid viscosity is also very important but
normally is controlled by factors that are process
dependent and cannot be changed to reduce
cavitation. Viscous liquids are more difficult to pump
and more prone to cavitation.
Graco recommends taking all the above factors
into account in system design. To maintain pump
efficiency, supply only enough air pressure to the
pump to achieve the required flow.
Graco distributors can supply site specific
suggestions to improve pump performance and
reduce operating costs.
8334792E

Installation
Mount The Pump
To avoid serious injury from toxic fluid or fumes:
• Ventilate to a remote area. The pump
exhaust air may contain contaminants. See
Air Exhaust Ventilation, page 11.
• Never move or lift a pump under pressure. If
dropped, the fluid section may rupture. Always
follow the Pressure Relief Procedure, page 14,
before moving or lifting the pump.
1. Mount the pump so the exhaust port remains
clear of the production area. Exhaust air may
contain debris and condensation from the air
supply and air chamber.
2. Be sure the mounting surface can support the
weight of the pump, hoses, and accessories, as
well as the stress caused during operation.
3. For all mountings, be sure the pump is secured
with screws through the mounting feet. Always
mount the pump upright.
4. Make sure the surface is flat and that the pump
doesn’t wobble.
5. For ease of operation and service, mount the
pump so air inlet, fluid inlet and fluid outlet ports
are easily accessible.
Accessories/Components Not Supplied System Components
A Air supply line J Air inlet port
BBleed-type master air valve (required
for your pump)
KExhaust port and muffler
C Air filter/regulator assembly L Fluid inlet port
DMaster air valve (to isolate the
filter/regulator for service)
M Fluid outlet port
EGrounded flexible fluid supply line NMounting feet
FFluid drain valve (required for your
pump)
GF
luid shutoff valve
HGrounded, flexible fluid outlet line
334792E 9

Installation
Ground The System
The equipment must be grounded to reduce the
risk of static sparking. Static sparking can cause
fumes to ignite or explode. Grounding provides an
escape wire for the electrical current.
•Always ground the entire fluid system as
described below.
• The pumps are not conductive. Any system
used to pump flammable fluids must be properly
grounded.
• Follow your local fire codes.
Before operating the pump, ground the system as
explained below.
•Pump: Always ground the entire fluid system by
making sure the fluid has an electrical path to a
true earth ground.
•Air and fluid hoses: Use only flexible grounded
hoses with a maximum of 500 ft. (150 m) combined
hose length to ensure grounding continuity.
•Air compressor: Follow manufacturer’s
recommendations.
•Fluid supply container: Follow local code.
•Solvent pails used when flushing: Follow local
code. Use only conductive metal pails, placed
on a grounded surface. Do not place the pail
on a nonconductive surface, such as paper or
cardboard, which interrupts grounding continuity.
Check your system electrical continuity after the
initial installation, and then set up a regular schedule
for checking continuity to be sure proper grounding
is maintained.
Air Lines
1. Install an air regulator and gauge (C) to control
the fluid pressure. The fluid stall pressure will be
thesameasthesetting of the air regulator.
2. Locate a bleed-typemasterairvalve(B)closeto
the pump and use it to relieve trapped air. Be
sure the valve is easily accessible from the pump
and located downstream from the regulator.
Trapped air can cause the pump to cycle
unexpectedly, which could result in serious
injury from splashing.
3. Locate another master air valve (D) upstream
from all air line accessories and use it to isolate
them during cleaning and repair.
4. An air line filter (C) removes harmful dirt and
moisture from the compressed air supply.
5. Install a grounded, flexible air hose (A) between
the accessories and the 1/8 npt(f) or 1/8 bspt
pump air inlet. Use a hose with a minimum 1/4 in.
ID.Ifah
ose longer than 10 ft. (3 m) is required,
use a larger diameter hose.
10 334792E