Magnum Venus Plastech 7000 User Manual

Powerslide Powerhead

Dual Piston Rod

5.00” & 7.00” Diameter

MAGNUM VENUS PLASTECH

5000 & 7000 Series Powerhead Manual Rev. 07/2011

2

Powerslide Powerhead

Assembly Manual

CORPORATE HEADQUARTERS and MANUFACTURING

5148 113th Ave. N. *Clearwater, FL 33760 * Tel [phone] * Fax [phone]

TECHNOLOGY CENTER and WEST COAST MANUFACTURING

1862 Ives Ave. * Kent, WA 98032 * Tel [phone] * Fax [phone]

MVP PLASTECH UK

Chilsworthy Beam, Gunnislake, Cornwall, PL18 9AT UK, * Tel:[phone]

Fax: [phone]

www.mvpind.com

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Table of Contents

Powerslide Powerhead

Assembly Manual

SAFETY & WARNINGS
C H A P T E R 1 – INTRODUCTION

C H A P T E R 2 – VALVE BLOCK DISASSEMBLY
C H A P T E R 3 – VALVE BLOCK REASSEMBLY
C H A P T E R 4 – AIR CYLINDER DISASSEMBLY
C H A P T E R 5 – PILOT VALVE REBUILD
C H A P T E R 6 – AIR CYLINDER REASSEMBLY
C H A P T E R 7 – PARTS DRAWINGS
C H A P T E R 8 – REVISION INFORMATION

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SAFETY & WARNING INFORMATION

OPERATING YOUR POLYESTER SYSTEM SAFELY

1. Introduction

Any tool, if used improperly, can be dangerous. Safety is ultimately the responsibility of
those using the tool. In like manner, safe operation of polyester processes is the
responsibility of those who use such processes and those who operate the equipment.
This manual outlines procedures to be followed in conducting polyester operations
safety. This system has been specifically designed for use of Polyester Resin, Gel-Coat,
and Methyl Ethyl Ketone Peroxides (MEKP) applications. Other formulations or blends
considered for use in this equipment is strictly prohibited without the expressed consent
by Magnum Venus Plastech Inc. Magnum Venus Plastech cannot eliminate every
danger nor foresee every circumstance that might cause an injury during equipment
operation. Some risks, such as the high pressure liquid stream that exits the spray tip,
are inherent to the nature of the machine operation and are necessary to the process in
order to manufacture the end-product. For this reason, ALL personnel involved in
polyester operations should read and understand the Safety Manual. It is very important
for the safety of employees involved in the operation that equipment operators,
maintenance and supervisory personnel understand the requirements for safe operation.
Each user should examine his own operation, develop his own safety program and be
assured that his equipment operators follow correct procedures. Magnum Venus
Plastech hopes that this manual is helpful to the user and recommends that the
precautions in this manual be included in any such program. Magnum Venus Plastech
recommends this Safety Manual remain on your equipment at all times for your
personnel safety. In addition to the manual, Magnum Venus Plastech recommends that
the user consult the regulations established under the Occupational Safety & Health Act
(OSHA), particularly the following sections:

1910.94 Pertaining to Ventilation.

1910.106 Pertaining to flammable liquids

1910.107 Pertaining to spray finishing operations, particularly Paragraph (m) Organic
Peroxides and Dual Component Coatings.

Other standards and recognized authorities to consult are the National Fire Protection
Association (NFPA) bulletins as follows:

NFPA No.33 Chapter 14, Organic Peroxides and Dual Component Materials
NFPA No.63 Dust Explosion Prevention
NFPA No.70 National Electrical Code
NFPA No.77 Static Electricity
NFPA No.91 Blower and Exhaust System
NFPA No.654 Plastics Industry Dust Hazards

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Type of Fire Extinguishing equipment recommended: Fire Extinguisher – code ABC,
rating number 4a60bc.

Extinguishing Media – Foam, Carbon Dioxide, Dry Chemical, Water Fog.
Copies of the above bulletins are available, at a nominal charge from:

National Fire Protection Association
470 Atlantic Avenue
Boston, MA 02210

Research Report No.11 of the American Insurance Association deal with “Fire,

Explosion and Health Hazards of Organic Peroxides”. It is published by:
American Insurance Association

85 John Street
New York, NY 10038

Local codes and authorities also have standards to be followed in the operation of your
spraying equipment. Your insurance carrier will be helpful in answering questions that
arise in your development of safe procedures.

1.2 Personal Safety Equipment

Magnum Venus Plastech recommends the following Personal Safety Equipment for
conducting safe operations of the Polyester Systems:

Magnum Venus Plastech recommends that the user consult the state and local
regulations established for all Safety equipment listed.

2.0 Material Safety

2.1 Hazards Associated with Laminating Operations

The major hazards which should be guarded against in polyester laminating operations
are those associated with:

1. The flammability and explosion dangers of the catalyst normally used – Methyl Ethyl
Ketone Peroxide (MEKP).

2. The flammability dangers of clean-up solvents sometimes used (Magnum Venus
Plastech recommends that clean-up solvents be non-flammable), and of resin diluents
used, such as styrene.

3. The flammability dangers of catalyst diluents, if used. (Magnum Venus Plastech
recommends that catalyst not be diluted.

4. The flammability dangers of the uncured liquid resins used.

5. The combustibility dangers of the cured laminate, accumulations of over spray, and
laminate sandings.

6. The toxicity dangers of all the chemicals used in laminating operations with respect to
ingestion, inhalation and skin and eye hazards.

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2.2 Catalyst (Methyl Ethyl Ketone Peroxide)

MEKP is among the more hazardous materials found in commercial channels. The safe

handling of the “unstable (reactive)” chemicals presents a definite challenge to the

plastics industry. The highly reactive property which makes MEKP valuable to the
plastics industry in producing the curing reaction of polyester resins also produces the
hazards which require great care and caution in its storage, transportation, handling,
processing and disposal. MEKP is a single chemical. Various polymeric forms may exist
which are more or less hazardous with respect to each other. These differences may

arise not only from different molecular structures (all are, nevertheless, called “MEKP”)

and from possible trace impurities left from the manufacture of the chemicals, but may
also arise by contamination of MEKP with other materials in its storage or use. Even a
small amount of contamination with acetone, for instance, may produce an extremely
shock-sensitive and explosive compound.

Contamination with promoters or materials containing promoters, such as
laminate sandings, or with any readily oxidizing material, such as brass or iron,

will cause exothermic “redox” reactions which can become explosive in nature.

Heat applied to MEKP, or heat build-up from contamination reactions can cause it
to reach what is called its Self-Accelerating Decomposition Temperature (SADT).

Researchers have reported measuring pressure rates-of-rise well in excess of 100,000
psi per second when certain MEKP’s reach their SADT. (For comparison, the highest
pressure rate-of-rise listed in NFPA Bulletin NO.68, “Explosion Venting”, is 12,000 psi
per second for an explosion of 12% acetylene and air. The maximum value listed for a
hydrogen explosion is 10,000 psi per second. Some forms of MEKP, if allowed to reach
their SADT, will burst even an open topped container. This suggests that it is not
possible to design a relief valve to vent this order of magnitude of pressure rate-of-rise.
The user should be aware that any closed container, be it a pressure vessel, surge
chamber, or pressure accumulator, could explode under certain conditions. There is no
engineering substitute for care by the user in handling organic peroxide catalysts. If, at
any time, the pressure relieve valve on top of the catalyst tank should vent, the area
should be evacuated at once and the fire department called. The venting could be the
first indication of a heat, and therefore, pressure build-up that could eventually lead to an
explosion. Moreover, if a catalyst tank is sufficiently full when the pressure relief valve
vents, some catalyst may spray out, which could cause eye injury. For this reason, and
many others, anyone whose job puts them in an area where this vented spray might go,
should always wear full eye protection even when laminating operations are not taking
place.

Safety in handling MEKP depends to a great extent on employee education, proper
safety instructions and safe use of the chemicals and equipment. Workers should be
thoroughly informed of the hazards that may result form improper handling of MEKP,
especially in regards to contamination, heat, friction and impact. They should be
thoroughly instructed regarding the proper action to be taken in the storage, use and
disposal of MEKP and other hazardous materials used in the laminating operation. In
addition, users should make every effort to:

A. Store MEKP in a cool, dry place in original containers away from direct sunlight and
away from other chemicals.

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B. Keep MEKP away from heat, sparks and open flames.
C. Prevent contamination of MEKP with other materials, including polyester over spray

and sandings, polymerization accelerators and promoters, brass, aluminum and non­stainless steels.

D. Never add MEKP to anything that is hot, since explosive decomposition may result.
E. Avoid contact with skin, eyes and clothing. Protective equipment should be worn at all

times. During clean-up of spilled MEKP, personal safety equipment, gloves and eye
protection must be worn. Fire fighting equipment should be at hand and ready.

F. Avoid spillage, which can heat up to the point of self-ignition.
G. Repair any leaks discovered in the catalyst system immediately, and clean up the

leaked catalyst at once in accordance with the catalyst manufacturer’s instructions.
H. Use only original equipment or equivalent parts from Magnum Venus Plastech in the

catalyst system (i.e.: hoses, fitting, etc.) because a dangerous chemical reaction may
result between substituted parts and MEKP.

I. Catalyst accumulated from the purging of hoses or the measurement of fluid output
deliveries should never be returned to the supply tank, such catalyst should be diluted
with copious quantities of clean water and disposed of in accordance with the catalyst
manufacturer’s instructions.

The extent to which the user is successful in accomplishing these ends and any
additional recommendations by the catalyst manufacturer determines largely the safety
that will be present in his operation.

2.3 Clean-Up Solvents and Resin Diluents

WARNING

A hazardous situation may be present in your pressurized fluid system!
Hydrocarbon Solvents can cause an explosion when used with aluminum or
galvanized components in a closed (pressurized) fluid system (pump, heaters,
filters, valves, spray guns, tanks, etc.). The explosion could cause serious injury,
death and/or substantial property damage. Cleaning agents, coatings, paints, etc.
may contain Halogenated Hydrocarbon Solvents. Some Magnum Venus Plastech
spray equipment includes aluminum or galvanized components and will be
affected by Halogenated Hydrocarbon Solvents.

A. There are three key elements to the Halogenated Hydrocarbon (HHC) solvent hazard.

a. The presence of HHC solvents. 1,1,1 – Trichloroethane and Methylene

Chloride are the most common of these solvents. However, other HHC
solvents are suspect if used; either as part of paint or adhesives formulation,
or for clean-up flushing. b. Aluminum or Galvanized Parts. Most handling
equipment contains these elements. In contact with these metals, HHC
solvents could generate a corrosive reaction of a catalytic nature.

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b. Equipment capable of withstanding pressure. When HHC solvent contact

aluminum or galvanized parts inside a closed container such as a pump,
spray gun, or fluid handling system, the chemical reaction can, over time,
result in a build-up of heat and pressure, which can reach explosive
proportions.

When all three elements are present, the result can be an extremely violent explosion.
The reaction can be sustained with very little aluminum or galvanized metal; any amount
of aluminum is too much.

A. The reaction is unpredictable. Prior use of an HHC solvent without incident (corrosion
or explosion) does NOT mean that such use is safe. These solvents can be dangerous
alone (as a clean-up or flushing agent) or when used as a component or a coating
material. There is no known inhibitor that is effective under all circumstances.
Furthermore, the mixing of HHC solvents with other materials or solvents, such as
MEKP, alcohol, and toluene, may render the inhibitors ineffective.

B. The use of reclaimed solvents is particularly hazardous. Reclaimers may not add any
inhibitors. Also, the possible presence of water in reclaimed solvents could feed the
reaction.

C. Anodized or other oxide coatings cannot be relied upon to prevent the explosive
reaction. Such coatings can be worn, cracked, scratched, or too thin to prevent contact.
There is no known way to make oxide coatings or to employ aluminum alloys, which will
safely prevent the chemical reaction under all circumstances.

D. Several solvent suppliers have recently begun promoting HHC solvents for use in
coating systems. The increasing use of HHC solvents is increasing the risk. Because of
their exemption from many State Implementation Plans as Volatile Organic Compounds

(VOC’s), their low flammability hazard, and their not being classified as toxic or

carcinogenic substances, HHC solvents are very desirable in many respects.

WARNING: Do not use Halogenated Hydrocarbon solvents in pressurized fluid
systems having aluminum or galvanized wetted parts.

NOTE: Magnum Venus Plastech is aware of NO stabilizers available to prevent
Halogenated Hydrocarbon solvents from reaction under all conditions with
aluminum components in closed fluid system. TAKE IMMEDIATE ACTION…
Halogenated Hydrocarbon solvents are dangerous when used with aluminum
components in a closed fluid system.

A. Consult your material supplier to determine whether your solvent or coating contains
Halogenated Hydrocarbon Solvents.

B. Magnum Venus Plastech recommends that you contact your solvent supplier
regarding the best non-flammable clean-up solvent with the heat toxicity for your
application.

C. If, however, you find it necessary to use flammable solvents, they must be kept in
approved, electrically grounded containers.

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D. Bulk solvent should be stored in a well-ventilated, separate building, 50 feet away
from your main plant.

E. You should allow only enough solvent for one day’s use in your laminating area.
F. “NO SMOKING” signs must be posted and observed in all areas of storage or where

solvents and other flammable materials are used.
G. Adequate ventilation (as covered in OSHA Section 1910.94 and NFPA No.91) is

important wherever solvents are stored or used, to minimize, confine and exhaust the
solvent vapors.

H. Solvents should be handled in accordance with OSHA Section 1910.106 and

1910.107.

2.4 Catalyst Diluents

Magnum Venus Plastech spray-up and gel-coat systems currently produced are
designed so that catalyst diluents are not required. Magnum Venus Plastech, therefore,
recommends that diluents not be used. This avoids the possible contamination which
could lead to an explosion due to the handling and mixing of MEKP and diluents. In
addition, it eliminates any problems from the diluents being contaminated through rust
particles in drums, poor quality control on the part of the diluents suppliers, or any other
reason. If, however, diluents are absolutely required, contact your catalyst supplier and
follow his instructions explicitly. Preferable, the supplier should premix the catalyst to
prevent possible “on the job” contamination while mixing.

WARNING

If diluents are not used, it should be remembered that catalyst spillage, gun, hose
and packing leaks are potentially more hazardous, since each drop contains a
higher concentration of catalyst, and therefore will react quicker with over spray
and the leak.

2.5 Cured Laminate, Overspray and Laminate Sandings Accumulation

A. Remove all accumulations of overspray, FRP sandings, etc. from the building as they
occur. If this waste is allowed to build up, spillage of catalyst is more likely to start a fire,
in addition, the fire would burn hotter and longer.

B. Floor coverings, if used, should be non-combustible.
C. Spilled or leaked catalyst may cause a fire if it comes in contact with an FRP product,

over-sprayed chop or resin, FRP sandings or any other material with MEKP.
To prevent this spillage and leakage, you should:

1. Maintain your Magnum Venus Plastech System. Check the gun several times daily for
catalyst and resin packing or valve leaks. REPAIR ALL LEAKS IMMEDIATELY.

2. Never leave the gun hanging over, or lying inside the mold. A catalyst leak in this
situation would certainly damage the part, possibly the mold, and may cause a fire.

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3. Inspect resin and catalyst hoses daily for wear or stress at the entry and exits of the
boom sections and at the hose and fittings. Replace if wear or weakness is evident or
suspected.

4. Arrange the hoses and fiberglass roving guides so that the fiberglass strands DO NOT
rub against any of the hoses at any point. If allowed to rub, the hose will be cut through,
causing a hazardous leakage of material which could increase the danger of fire. Also,
the material may spew onto personnel in the area.

2.7 Toxicity of Chemicals

A. Magnum Venus Plastech recommends that you consult OSHA Sections 1910.94,

1910.106, 1910.107 and NFPA No.33, Chapter 14, and NFPA No.91.
B. Contact your chemical supplier(s) and determine the toxicity of the various chemicals

used as well as the best methods to prevent injury, irritation and danger to personnel.
C. Also determine the best methods of first aid treatment for each chemical used in your plant.

2.8 Treatment of Chemical Injuries

Great care should be used in handling the chemicals (resins, catalyst and solvents) used
in polyester systems. Such chemicals should be treated as if they hurt your skin and
eyes and as if they are poison to your body. For this reason, Magnum Venus Plastech
recommends the use of protective clothing and eye wear in using polyester systems.
However, users should be prepared in the event of such an injury. Precautions include:

1. Know precisely what chemicals you are using and obtain information from your
chemical supplier on what to do in the event the chemical gets onto your skin or into
the eyes, or is swallowed.

2. Keep this information together and easily available so that it may be used by those
administering first aid or treating the injured person.

3. Be sure the information from your chemical supplier includes instructions on how to
treat any toxic effects the chemicals have.

WARNING

Contact your doctor immediately in the event of any injury and give him the
information you have collected. If your information includes first aid instructions,
administer first aid immediately while you are contacting your doctor.

Fast treatment of the outer skin and eyes that contact such chemicals generally includes
immediate and thorough washing of the exposed skin and immediate and continuous
flushing of the eyes with lots of clean water for at least 15 minutes or more. These
general instructions of first aid treatment, however, may be incorrect for some chemicals;
that is why you must know the chemicals and treatment before an accident occurs.
Treatment for swallowing a chemical frequently depends upon the nature of the
chemical.

NOTE: Refer to your System User Manual for complete and detailed operating
instructions and service information.

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3.0 Equipment Safety

WARNING

Magnum Venus Plastech suggest that personal safety equipment such as EYE
GOGGLES, GLOVES, EAR PROTECTION, and RESPIRATORS be worn when
servicing or operating this equipment. Ear protection should be worn when
operating a fiberglass chopper to protect against hearing loss since noise levels
can be as high as 116 dB (decibels). This equipment should only be operated or
serviced by technically trained personnel!

WARNING

Never place fingers, hands, or any body part near or directly in front of the spray
gun fluid tip. The force of the liquid as it exits the spray tip can cause serious
injury by shooting liquid through the skin. NEVER LOOK DIRECTLY INTO THE
GUN SPRAY TIP OR POINT THE GUN AT OR NEAR ANOTHER PERSON. (TREAT
THE GUN AS IF IT WERE A LOADED PISTOL.)

3.1 Emergency Stop Procedures

The following steps should be followed in order to stop the machinery in an emergency
situation

1. The ball valve located where the air enters the power head of the resin pump, should
be moved to the “OFF” or closed position. To do this, simply rotate the lever on the
ball valve 90 degrees. Doing this will cause all the system air to bleed out of the
system in a matter of a few seconds, making the system incapable of operating

NOTE: Step 2 is a precautionary step and should be followed whenever the
above mentioned ball valve is activated to the stop mode. Failure to do so, can

damage the regulators and components on reactivating to the “ON” position.

2. Turn all system regulators to the “OFF” position (counter-clockwise) position

NOTE: Verify that the Catalyst relief line, located on the catalyst manifold, and
the resin return line, located on the resin filter, are secured relieving catalyst and
resin fluid pressure.

3. Catalyst pressure in the catalyst pump can be eliminated by rotating the ball valve on
the catalyst manifold 90 degrees to the “open” or “on” position.

Note: The “open” or “on” position is when the ball valve handle is parallel (in line)
with the ball valve body. The “closed” or “off” position is when the ball valve

handle is perpendicular (across) the ball valve body.

4. Resin pressure in the resin pump can be eliminated by rotating the ball valve on the

resin filter 90 degrees to the “open” or “on” position. Place a container under the ball

valve to catch any resin that is ejected out of the valve.

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3.2 Grounding

Grounding an object means providing an adequate path for the flow of the electrical
charge from the object to the ground. An adequate path is one that permits charge to
flow from the object fast enough that it will not accumulate to the extent that a spark can
be formed. It is not possible to define exactly what will be an adequate path under all
conditions since it depends on many variables. In any event, the grounding means
should have the lowest possible electrical resistance. Grounding straps should be
installed on all loose conductive objects in the spraying area. This includes material
containers and equipment. Magnum Venus Plastech recommends grounding straps be
made of AWG No.18 stranded wire as a minimum and the larger wire be used where
possible. NFPA Bulletin No77 states that the electrical resistance of such a leakage
path may be as low as 1 meg ohm (10 ohms) but that resistance as high as 10,000 meg
ohms will produce an adequate leakage path in some cases. Whenever flammable or
combustible liquids are transferred from one container to another, or from one container
to the equipment, both containers or container and equipment shall be effectively
bonded and grounded to dissipate static electricity. For further information, see

National Fire Protection Association ( NFPA) 77, titled “Recommended Practice on
Static Electrical”. Refer especially to section 7-7 titled “Spray Application of Flammable
and Combustible Materials”. Check with local codes and authorities for other specific

standards that might apply to your application. NEVER USE HARD MATERIALS SUCH
AS WIRE, PINS, ETC., TO CLEAR A PLUGGED GUN. HARD MATERIALS CAN
CAUSE PERMANENT DAMAGE. DAB WITH A BRISTLE BRUSH, BLOW
BACKWARDS WITH AIR UNTIL CLEAR WHILE WEARING A PROTECTIVE EYE
SHIELD. REPEAT AS MANY TIMES AS NECESSARY. DO NOT PERFORM ANY
MAINTENANCE OR REPAIRS UNTIL YOU HAVE FOLLOWED THE PRECAUTIONS
STATED ABOVE. IF YOU, AS AN EQUIPMENT OPERATOR OR SUPERVISOR, DO
NOT FEEL THAT YOU HAVE BEEN ADEQUATELY TRAINED OR INSTRUCTED AND
THAT YOU LACK THE TECHNICAL KNOWLEDGE TO OPERATE OR PERFORM
MAINTENANCE ON A PIECE OF MAGNUM VENUS PLASTECH EQUIPMENT,
PLEASE CALL MAGNUM VENUS PLASTECH BEFORE OPERATING OR
PERFORMING MAINTENANCE ON THE EQUIPMENT. IF YOU HAVE ANY
QUESTIONS REGARDING THE ABOVE PRECAUTIONS OR ANY SERVICE OR
OPERATION PRECEDURES, CALL YOUR MAGNUM VENUS PLASTECH
DISTRIBUTOR OR MAGNUM VENUS PLASTECH.

NOTICE: All statements, information and data given herein are believed to be
accurate and reliable but are presented without guaranty, warranty or
responsibility of any kind express or implied. The user should not assume that all
safety measures are indicated or that other measures are not required.

DANGER: Contaminated catalyst may cause Fire or Explosion. Before working
on the catalyst pump or catalyst accumulator, wash hands and tools thoroughly.
Be sure work area is free of dirt, grease or resin. Clean catalyst system
components with clean water only.

DANGER: Eye, skin and respiration hazard. The Catalyst, MEKP, may cause
blindness, skin irritation or breathing difficulty. Keep hands away from face.
Keep food and drink away from work area.

WARNING: Please refer to your catalyst manufacturer’s safety information

regarding the safe handling and storage of catalyst. Wear appropriate safety
equipment as recommended.

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