The information and data contained herein are proprietary to Versum Materials, Inc. and
are not to be copied, reproduced, duplicated, or disclosed to others, in whole or in part,
without prior written consent of Versum Materials, Inc. The information and data should
be available only to those with a need to know. Versum Materials, Inc. makes no
representation that the information and data is appropriate for the recipient, and each
recipient needs to independently evaluate the appropriateness of the information and data
for its use.
This Installation and Operation Manual is subject to change without notification. For
current technical information please call Product Support at (866)624-7677 from
continental U.S., or write Versum Materials, Inc., 1919 Vultee Street, Allentown, PA
18103, Attention: Product Support.
Versum Materials, Inc. (hereinafter referred to as "Versum Materials") warrants that:
(A) Each new Versum Materials Delivery System is free from defects in material and
workmanship under normal use and service for a period of one year from the date of
delivery by Versum Materials to the first purchaser.
(B) Each new accessory is free from defects in material and workmanship under
normal use and service for a period of one (1) year from the date of delivery by Versum
Materials to the first purchaser.
If any product requires service during the applicable warranty period, the purchaser
should communicate directly with Versum Materials to determine appropriate repair.
Repair or replacement will be carried out at Versum Materials expense subject to the
terms of this warranty. It is the responsibility of the customer to perform routine
maintenance and periodic calibration.
In no event shall Versum Materials be liable for any incidental, indirect or consequential
damages in connection with the purchase or use of any Versum Materials product. This
warranty shall not apply to, and Versum Materials shall not be responsible for, any loss
arising in connection with the purchase or use of any Versum Materials product which
has been repaired by anyone other than an authorized Versum Materials service
representative or altered in any way so as, in Versum Materials judgment, to affect its
stability or reliability, or which has been subject to misuse or negligence or accident, or
which has the unit or lot number altered, effaced or removed, or which has been used
otherwise than in accordance with the instructions furnished by Versum Materials.
This warranty is in lieu of all other warranties, express or implied, and all other
obligations or liabilities on Versum Materials part, and Versum Materials neither assumes
nor authorizes any representative or other person to assume for it any other liability in
connection with the sale of Versum Materials equipment.
VERSUM MATERIALS DISCLAIMS ALL OTHER WARRANTIES, EXPRESS
OR IMPLIED, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR
OF FITNESS FOR A PARTICULAR PURPOSE OR APPLICATION.
Address:
Versum Materials, Inc.
1919 Vultee Street
Please read the following safety warnings carefully before installing the equipment.
1.1 Introduction
This section is meant to communicate to the user any hazards involved with the equipment.
The following paragraphs will define the hazard warnings used and describe the icons found in various
sections of the manual and on the equipment. The hazard warning labels used in the manual will
correlate with those used on the equipment.
1.1.1 Level or Intensity of Hazard
Indicates an immediate hazard, which if
not avoided, will result in death or
serious injury.
Indicates a potentially hazardous
situation, which if not avoided, could
result in death or serious injury.
1.1.2 Hazard Types (Symbols)
This symbol is a safety alert symbol.
This symbol represents asphyxiant, toxic or corrosive
gases. Gases used with the GASGUARD® can cause
personal injury or death.
Indicates a potentially hazardous
situation, which if not avoided, may
result in a minor or moderate injury. It
may also be use to alert against unsafe
practices.
Failure to read, understand and follow the
safety information found in this section
could result in personal injury and death.
The operator must read and understand
this safety section before operating the
system. All operating and maintenance
personnel must receive training and
instruction by Versum Materials, Inc.
All cylinder storage areas must be
continually monitored with an air quality
monitor to prevent the danger of a
hazardous atmosphere.
Before using the system, review your
company's requirements for use of toxic,
corrosive, flammable, pyrophoric, oxidizers
and inert gas cylinders and electrically
powered equipment. You must be
thoroughly trained in your company's
safety procedures and safety equipment
(self-contained breathing apparatus,
emergency shutdown systems, plant alarm
locations, etc.)
Do not use this device in any manner other
than specified in this manual.
Do not make any changes to the equipment
independently. INJURY or DEATH may
result from unauthorized modifications.
All modifications to equipment MUST be
approved in writing by an Versum
Materials, Inc.' Representative.
High concentrations of nitrogen, helium, or
other inert gases can cause an oxygen
deficient atmosphere in a confined area
which can cause DEATH. All personnel
must read and understand the material
safety data sheet(s) (MSDS) for the specific
gas(es) being used.
Oxygen concentrations of 19.5% or less can greatly increase the hazard of asphyxiation to personnel.
Before working in an area where nitrogen, helium or other inert gases could be present, check the area
with an oxygen monitor to be sure the oxygen concentration is between 19.5% and 23%. While
working in the area, the oxygen concentration needs to be monitored with a continuous oxygen
monitor. Always provide adequate ventilation in the work area to decrease the risk of an oxygen
deficient atmosphere.
Personnel in an oxygen deficient atmosphere will not realize they are being asphyxiated. Breathing of
pure inert gases will cause immediate unconsciousness. Symptoms of asphyxia include:
Remove any personnel in an oxygen deficient atmosphere to fresh air. Get medical attention
immediately. Positive pressure breathing apparatus must be worn by any rescuers entering a
suspected oxygen deficient atmosphere.
Nitrogen gas may accumulate in low or confined areas. All requirements of OSHA 1910.146
(Confined Space Guidelines) must be met when inert gases may be present in confined spaces. Self
contained breathing apparatus is required (cartridge or filter type gas masks cannot be used). See the
information on personal protective equipment in this section for details.
When entering a confined area or area which may contain high inert gas concentrations, a "Buddy System" must be used. One person should remain outside the suspect area, but within view of the
other person. This method ensures that the other person can respond in the event of an emergency.
1.4 Pressurized Fluids / Gases
Pressurized gas and water sprinkler lines
can injure personnel and damage
equipment. Never tighten or loosen a fitting
when it is under pressure.
The house nitrogen supply lines can contain pressures of 100+ psig (6.9+ barg). The water sprinkler
lines contain pressures of 30 psig (2.1 barg). Exercise care when working around these lines. Ensure
that pressure has been vented before breaking any connection. Tag out and lock out the line before
doing any work. Follow Typical Minimal Lockout or Tagout System Procedures described by
Occupational Safety and Health Admin., Labor Para. 1910.147.
1.5 Electrical Hazard
Electric shock can cause personal injury or death.
The control circuits for the system use 115/220 VAC, 50/60 Hz. Do not attempt to work on the system
without first turning the power off and tagging out and locking out the electrical supply disconnect
switch per plant lock out procedures. Follow the Typical Minimal Lockout or Tagout System
Procedures described by Occupational Safety and Health Admin., Labor Para. 1910.147.
1.6 Falling Equipment Hazard
This system is a top heavy device. If it is not
properly installed, it could fall and injure,
crush or kill personnel working in the area.
When moving and installing the system, extreme care needs to be taken to support it properly. Due to
the top heavy nature of the system, when moving or if not installed properly, it could tip over, injuring,
crushing or possibly killing personnel in the area. Moving and setting equipment shall be done only by
those persons having proper training and qualification in lifting and rigging.
1.7 Gas Cylinder Handling Hazard
Improper handling and storage of
compressed and liquefied gas cylinders could
cause injury or death.
Restrain gas cylinders during storage and use. Keep protective cap on cylinder when not dispensing
gas. Lifting gas cylinders could cause strain or injury. See Safetygrams found in the Safety section of
the Operation Manual.
A pinch hazard exists on cabinet doors
equipped with automatic closers.
1.9 Personal Protective Equipment
Personal protective equipment, as defined in
this section, must be worn when working
with this system.
Personal protective equipment is designed to protect personnel from inadvertent risk. The listed
personal protective equipment must be worn regardless of operator or technician level of training and
qualifications.
The minimum personal protective equipment required for operating and maintaining the
GASGUARD® system is dependent on the hazard category of the gas(es) being used. When a gas
meets more than one hazard category, the PPE for the most hazardous category must be used. Refer to
the hazard warnings in Section 1.10 for the hazards of the gas(es) being used.
In addition to the personal protective equipment, the following safety equipment is highly
recommended and is required when VERSUM MATERIALS, INC. personnel operate this equipment.
This equipment should be supplied by the customer prior to operating the GASGUARD® system.
Safety shower
Emergency phones
Eye wash
Gas leak detection system for gases to be used (ex: MDA)
The gas leak detection system must warn personnel (through visible and audible alarms located
near the gas cabinet) of a hazardous atmosphere. The gas sensor(s) need to be set up to alarm
at the lowest level of hazard of exposure. Upon activation of an alarm, follow the established
shutdown procedures for your system.
Scrubber with a pollution abatement system sized for maximum potential upset flow of
hazardous gas.
Adequate ventilation as described in section 3.7.
If you are unsure what personal protective
equipment list to follow for the gases being
used, DO NOT continue. Failure to
understand the hazards and use the proper
personal protective equipment may cause
INJURY or DEATH. Contact Versum
Materials, Inc. for the gas category.
Personal Protective Equipment for the gas categories follows:
NOTE: Most highly toxics (diborane, germane phosphine) are also
flammable. Nomex suit is not required for non-flammable toxics (ex:
nitrogen dioxide, boron trifluoride). All gases in Chapter 1 Section 12
using the warning sign with POISON GAS on the left and
FLAMMABLE GAS on the right REQUIRE the Nomex suit.
NOTE: Either air quality monitoring or self contained breathing
apparatus is required for corrosive gases. Versum Materials, Inc.
recommends the use of both. It is not required to use both, however at
least one MUST be used at all times.
The following hazard warnings detail system hazards. Follow the warnings to avoid personal injury or
death. Do not work on the system before reading and understanding the following warnings. The
hazard warnings include:
Toxic Gases Hazards
Corrosive Gases Hazards
Flammable and Pyrophoric Gases Hazards
Oxidizer Hazards
Inert Gas Hazards
Pressurized Gases
Cylinder Handling Hazards
Electrical Hazards
Not all of the gas related hazards may apply to your system. For example, you may not be using any
gases in the oxidizer class.
Some gases have more than one hazard. For
example, fluorine is toxic, corrosive and also an
oxidizer.
The Pressurized Gases Cylinder Handling Hazards and Electrical Hazard warnings apply to all
GASGUARD® systems.
The following is general information on
typical gas hazards. It is not a substitute for
training and use of Material Safety Data
Sheets by all operators.
Many of the gases used in the GASGUARD®
system could cause personal INJURY OR
DEATH at very low concentrations.
Many of these gases provide no physical warning signs (i.e. coughing, throat irritation, burning
sensations, and shortness of breath) to alert personnel of exposure to toxic levels.
Personal protective equipment required for use with toxic gases is detailed in Chapter 1 Section 9 of
this manual.
A list of most of the toxic gases used in the GASGUARD® system follows:
Pyrophoric gases do not need a source of ignition to burn. However, low concentrations may
accumulate without pyrophoric ignition (i.e. silane can accumulate up to a concentration of 2 molar
percent [number of moles of silane per fixed volume of air] before spontaneous ignition occurs).
Pyrophoric gases will ignite in the presence of oxygen.
Flammable mixtures can burn or explode
Fire and explosion hazards can be controlled by preventing the formation of combustible fuel-oxidant
mixtures and by eliminating sources of ignition such as sparks, open flames or other heat sources.
Flammable mixtures will burn when ignited and can explode when the concentration is above the
lower explosive limit (LEL) and below the upper explosive limit (UEL) for that specific gas. Some
flammable gases may accumulate as pockets in enclosed areas and subsequently explode if an ignition
source is present. A flammable gas also presents an asphyxiating hazard in sufficient quantities to
reduce oxygen concentration below 19.5%, however fire/explosion is typically the primary hazard.
Adequate ventilation is necessary
Adequate ventilation helps reduce the possible formation of flammable mixtures in the event of a
flammable gas leak. See tables in Chapter 3 Section 7 which list the exhaust requirements per
enclosure size for all gases.
NOTE: To avoid any possible hazardous reactions (i.e. fire, explosion,
extremely corrosive or toxic mixtures) never vent incompatible gases out the
same duct!
Continually monitor the atmosphere
Continually monitoring the atmosphere with a gas leak detector will alert the operator to a flammable
or explosive atmosphere in the area.
NOTE: The installation of a hydride detector is strongly recommended for
silane and other pyrophoric gases to detect leaks or pockets of gas that may not
spontaneously ignite!
Versum Materials, Inc. strongly recommend installation of a hydride detector to detect gas pocketing
of pyrophoric gases.
Avoid forming combustible mixtures by adhering to the following:
Do not admit flammable gases into an area that contains oxygen/air. Do not admit
oxygen/air into an area that contains flammable gases.
Maintain a small positive pressure in systems to prevent air from leaking into them when
the equipment is shut down.
Avoid venting of flammable gases through vents that do not contain an inert atmosphere.
Personal protective equipment required for use with pyrophoric and flammable gases is listed in
Chapter 1 Section 9. Note that the personal protective equipment (PPE) for pyrophorics differs from
the flammables. Be sure to use the proper PPE.
A list of most of the pyrophoric gases used in the GASGUARD® system follows:
Diborane Phosphine
Disilane Silane
A list of most of the flammable gases used in the GASGUARD® system follows:
Acetylene Germane
Ammonia Hydrogen
Arsine Hydrogen mixtures
Carbon monoxide Hydrogen sulfide
Diborane Methane
Diborane mixtures Methyl chloride
Dichlorosilane Methyl fluoride
Disilane Trichlorosilane
1.10.4 Oxygen and Other Oxidizer Hazards
Systems using oxygen or other oxidizers
(i.e. nitrous oxide, fluorine) have specific
guidelines for specifying equipment, materials
of construction and system cleanliness. Failure
to comply with materials of construction and
system cleanliness could result in injury or
death.
Follow safe practices when using oxygen or oxidizers (chlorine and fluorine)
Oxygen concentrations in excess of 23% significantly increase the hazard exposure to personnel and
equipment. Those materials which burn in air will burn more violently and explosively in
oxygen/oxidizer enriched atmospheres. Guidelines for oxygen systems are found in CGA Pamphlet G-
4.4. (Contact your gas supplier or the Compressed Gas Association to order CGA Pamphlets.) Only
those personnel who have read and understand the hazards of oxygen or oxidizers and safe practices
for these systems should be permitted to operate and maintain the system.
Use only equipment specifically designed for oxygen or oxidizer service.
Inappropriate materials of construction increase the danger of ignition of pipelines and controls. Pipe
sizing is just as important to ensure all velocity restrictions for oxygen or oxidizers are met. Do not
substitute components or equipment without considering these hazards. Refer to CGA Pamphlet G-4.4
for guidelines and specifications of oxygen systems. (Contact your gas supplier or the Compressed
Gas Association to order CGA Pamphlets.)
Maintain oxygen cleanliness at all times.
All equipment and piping in contact with oxygen or oxidizers must be cleaned to specifications
outlined in CGA Pamphlet G-4.1. (Contact your gas supplier or the Compressed Gas Association to
order CGA Pamphlets.) Failure to clean components and piping increases the danger of ignition and
fire. Note that the cleaning solvent must be thoroughly removed before the equipment can be placed
into service. Maintain cleanliness during assembly, installation, and repair.
No open flames, smoking, or sparks permitted near oxygen equipment.
Since many materials will burn in oxygen/oxidizer enriched atmospheres, the best method in
preventing fires is to eliminate sources of ignition. Where this control equipment is being used or
where concentrations of oxygen are greater than 23%, avoid open flames, sparks, or sources of heat.
Never weld on a pressurized line flowing oxygen or an oxidizer. Make sure signs are posted warning
personnel that oxygen or oxidizers are in use.
Do not substitute oxygen for compressed air.
Substituting oxygen for compressed air is dangerous. Explosions can occur when oxygen is
substituted for air. Chances are the instrument air equipment is not compatible or cleaned for oxygen
service. Oxygen used to clean off equipment or clothing could come in contact with a source of
ignition (spark, flame, or other) and ignite. In some cases, the elevated oxygen levels could linger
even after the source has been shut off. Never tie into an oxygen system for personal breathing
purposes.
A list of most of the oxidizers used in the GASGUARD® system follows:
Chlorine Nitrogen trifluoride
Chlorine trifluoride Nitrous oxide
Fluorine Oxygen
1.10.5 Inert Gas Hazards
High concentrations of nitrogen, helium, or
other inert gases will cause an oxygen deficient
atmosphere in a confined area which can cause
DEATH. All personnel must read and
understand the Material Safety Data Sheet(s)
Oxygen concentrations of 19.5% or less can greatly increase the hazard of asphyxiation to personnel.
Before working in an area where nitrogen, helium or other inert gases could be present, check the area
with an oxygen monitor to be sure the oxygen concentration is between 19.5% and 23%. While
working in the area, the oxygen concentration needs to be monitored with a continuous oxygen
monitor. Always provide adequate ventilation in the work area to decrease the risk of an oxygen
deficient atmosphere. Read VERSUM MATERIALS, INC. Safetygram 17 "Dangers of Oxygen
Deficient Atmospheres" included in the safety literature in Section 1.14 of this manual.
(MSDS) for the specific gas(es) being used.
Any time an oxygen deficient atmosphere is suspected, the proper personal protective equipment must
be used. See the information on personal protective equipment in Chapter 1 Section 9 for details.
Personnel in an oxygen deficient atmosphere will not realize they are being asphyxiated. Breathing of
pure inert gases will cause immediate unconsciousness.
Remove any personnel in an oxygen deficient atmosphere to fresh air. Get medical attention
immediately. Use cardiopulmonary resuscitation if the victim is not breathing. Positive pressure
breathing apparatus must be worn by any rescuers entering a suspected oxygen deficient
atmosphere.
Nitrogen gas may accumulate in low or confined areas. All requirements of OSHA 1910.146
(Confined Space Guidelines. ) must be met when working with inert gases in confined spaces. Self
contained breathing apparatus is required (cartridge or filter type gas masks cannot be used). See the
information on personal protective equipment in this section for details.
When entering a confined area or area which may contain high inert gas concentrations, a "Buddy System" must be used. One person should remain outside the suspect area, but within view of the
other person. This method ensures that the other person can respond in the event of an emergency.
Personal protective equipment required for use with inerts is listed in Chapter 1 Section 9.
A list of inert gases used in the GASGUARD® system follows:
Any gas, in addition to those listed above,
used in the GASGUARD® system could
potentially displace the oxygen in the air
and cause asphyxiation.
Pressurized gas lines could injure personnel
and damage equipment. Never tighten or
loosen a fitting when it is under pressure.
The process and purge gas cylinders can contain pressures up to 2650 psig in the USA. In Europe,
cylinders can contain pressures up to 200 barg. A leak from a loose mechanical fitting, component or a
ruptured/failed component can expose the operator to a high pressure gas stream or projectile. Read
the cylinder handling warnings in Chapter 1 Section 1.10.7 and the safety literature on cylinder
handling in Chapter 1 Section 13.
The house nitrogen supply lines can contain pressures of 100+ psig (7+ barg). Exercise care when
working around these lines. Insure that pressure has been vented before breaking any connection. Tag
out and lock out the line before doing any work. Follow Typical Minimal Lockout or Tagout System
Procedures described by Occupational Safety and Health Admin., Labor Para. 1910.147 found in
Section 1.11.
1.10.7 Cylinder Handling Hazards
High pressure gas cylinders could be
extremely hazardous when not handled
properly.
Proper training, maintenance, leak testing and mechanical connection procedures can prevent operators
from being exposed to high pressure gas streams. Use the cylinder change out procedures in Chapter
Do not use a wrench or other device to close diaphragm type cylinder valves. This could
cause diaphragm rupture and valve failure which could result in personal injury or death.
Contact your gas supplier for the maximum torque (ft./lbs. or N/m) allowed on diaphragm
type cylinder valves. Certain gases are supplied with cylinder valves without handwheels.
Use only the tool specified by your gas supplier to open and close diaphragm type cylinder
valves to avoid over torquing these valves.
If a cylinder valve protection cap is extremely difficult to remove, do not apply excessive
force or pry the cap loose. Attach a label to the cylinder identifying the problem and notify
the personnel responsible for returning cylinders about the defective cylinder. Obtain
another cylinder. Do not attempt to open a frozen cap as this would damage the cylinder
valve and could result in personal injury or death.
Do not rotate the cylinder using the cylinder valve handle. This may open the cylinder valve
and cause a high pressure gas leak.
NEVER replace the gas specified for use in the source system with another type of gas
cylinder. Incompatible gases could cause fires, explosions or extremely corrosive or toxic
mixtures which can cause personal injury or death. If another type of gas is required for
use in the gas source system, contact Versum Materials, Inc. immediately.
A valve outlet sealing cap must be supplied on all toxic, corrosive and pyrophoric gases.
Consult your gas supplier if there is no sealing cap on any of the above types of gas
cylinders.
Cylinder valves are available with removable flow restrictor orifices in the valve outlet for
use with gas cylinders. This flow restrictor orifice significantly limits the rate of release of
gas from the valve outlet during transportation, storage and use, due to a valve or system
failure. Verify that your gases are supplied in cylinders with valves that have the
appropriate flow restrictor orifice. Note that there are different size flow restrictor orifices
available. Verify that the correct size is being used for your specific situation. A quality
control program should be established to assure that your supplier has installed the correct
flow restrictor orifice in the valve outlet after the filling operation has been completed.
Electric shock could cause personal injury
or death.
The control circuits for the system use 115/220 VAC, 50/60 Hz. Do not attempt to work on the system
without first turning the power off and tagging out and locking out the electrical supply disconnect
switch per plant lock out procedures. Follow the Typical Minimal Lockout or Tagout System
Procedures described by Occupational Safety and Health Admin., Labor Para. 1910.147 found in
Chapter 1 Section 11 of this manual.
1.10.9 Purge Gas Backstream Hazard
Avoid low pressure condition in purge gas
cylinder to prevent a backstream hazard.
The purge gas system incorporates a pressure indicating gage which will provide the means of
displaying a low purge gas cylinder pressure condition (usually 200 psig [14 barg] minimum). The
cylinder should be changed out at this point to prevent process gas from backstreaming into the purge
gas cylinder.
1.11 Typical Minimal Lockout or Tagout System Procedures
NOTE: The following OSHA document is included to help you develop a lockout/tagout procedure
for the GASGUARD® System. A written procedure is required for any work performed under
lockout/tagout. It must be reviewed, approved and understood by all participants who are trained to
perform the work. (Occupational Safety and Health Admin., Labor Para. 1910.147)
Although OSHA does not have jurisdiction outside the United States of America, it is Versum
Materials, Inc. recommendation that Lockout, or Tagout procedures be followed, except where local
laws are more stringent.
General
Lockout is the preferred method of isolating machines or equipment from energy sources. To assist
employers in developing a procedure which meets the requirements of the standard, the following