Page 16 - BEST-Type-Y-&-Z-Unit-Technical-Bulletins

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Tubing & Pipe Model BBCF, BFCF, Pressure Loss Alarm Switch Model EPSK Required Accessories for ALL Model EPWN &
Bulkhead Connections for ALL Accessory for ALL Universal Mount Protected Enclosures
Purging & Pressurization Systems BFFK & EPC Purging & Pressurization Systems Configurations CD, ETWN
B24, B120 & B240
BBCF Description EPWN Nameplate Enclosure Pressure & Enclosure Temperature
Explosion Proof
The Model BBCF Bulkhead Connection Kit provides Tubing & Pipe Bulkhead Connection Kits Model EPSK Explosion Proof Enclosure Pressure Enclosure Pressure Switch Kits Model EPWN Enclosure Pressurization Warning Warning Nameplates
standard nut and ferule tubing connections to a Switch Kits are accessories that provide a pressure Nameplates are intended for all protected
protected enclosure for a purging or pressurization loss alarm contact. They are intended to mount enclosures. One (1) nameplate is furnished with
system’s supply and reference tubing. The Model Technical Bulletin BCK TB-R0 © 06.20.2018 in a vertical stand-alone position to complement Technical Bulletin EPSK TB-R0 © 07.10.2018 all Pressurization and Purging Units, but additional Technical Bulletin EWN TB-R0 © 07.10.2018
BBCF consists of one 1/4” through wall stainless all universal mount Type Y and Z purging and nameplates must be ordered separately at time of
steel bulkhead fitting for atmospheric reference and pressurization systems, and are offered in a full order to label all doors of the protected enclosure,
one 1/4”, 3/8” or 1/2” through wall stainless steel range of area classification ratings to satisfy any as required by NFPA 496.
bulkhead fitting, depending on model selected, for Hazardous Location.
the supply connection to the protected enclosure. These nameplates are an essential accessory
Applications and required by NFPA 496 to ensure operators
and maintenance personnel are advised that
BFCF they must not open the protected enclosure while
When utilized in conjunction with one or more of our internal devices that are not suitable for use in
The Model BFCF Bulkhead Connection Kit provides Model RAB Remote Alarm Beacon or Model RAH the Hazardous Area are energized. To meet
standard nut and ferule tubing connections to a Remote Alarm Horn devices, or any pre-existing or protected enclosure labeling requirements for both
protected enclosure for a purging or pressurization common alarm device or system, these Enclosure Class I and Class II, the warning also prescribes
system’s supply and reference tubing. The Model Pressure Switch Kits can be utilized to activate the that all combustible dust must be removed from
BFCF consists of one 1/4” flush mount stainless alarm devices or system to gain the attention of the protected enclosure and it must be properly
steel bulkhead fitting for atmospheric reference and Model BBCF operators and maintenance personnel upon the purged or pressurized after it is opened, before
one 1/4”, 3/8” or 1/2” through wall stainless steel Through Wall Supply & Reference loss of safe pressure in a protected enclosure. re-energizing any internal devices that are not
bulkhead fitting, depending on model selected, for Bulkhead Connection Kit suitable for use in the Hazardous Area.
the supply connection to the protected enclosure.
Provisions
FFCF Model EPSK Enclosure Pressure Switch Kits ETWN Nameplate
The Model FFCF Bulkhead Connection Kit provides include a rated pressure switch to meet your Model ETWN Enclosure Temperature Warning Model
EPWN
particular area classification, and a combination
standard nut and ferule tubing connections to a of one or two atmospheric reference vents, a Nameplates are intended for protected enclosures
protected enclosure for a purging or pressurization male 1/4” tubing connector a flush or female pipe that feature internal devices with surface
system’s supply and reference tubing. The Model bulkhead connector and a set of 1/4” fasteners to temperatures that exceed the T Code Rating of
FFCF consists of one 1/4” flush mount stainless attach the switch securely, whether mounted inside the surrounding Hazardous Area atmosphere.
steel bulkhead fitting for atmospheric reference and or exterior to a protected enclosure. These items must be ordered separately at time
one 1/4”, 3/8” or 1/2” flush mount stainless steel Certifications Vary of order and are required for all doors of the
bulkhead fitting, depending on model selected, for please contact us for protected enclosure.
the supply connection to the protected enclosure. Installation more information They are an essential accessory and required by
EPC Model BFCF Model EPSK Enclosure Pressure Switch Kit must NFPA 496 to ensure operators and maintenance
personnel are advised that they must wait for
be installed in a vertical position on a secure
The Model EPC Enclosure Pipe Connection Kit Through Wall Supply & Flush Reference surface. The high port of the switch must reference the established time period before opening the
protected enclosure to prevent ignition of the
Bulkhead Connection Kit
the protected enclosure atmosphere or the last
provides an NPT connection to a protected enclosure enclosure of an array, while the low port must surrounding atmosphere. The cooling time in
for piping between multiple purged or pressurized reference external atmosphere. All Switches minutes must be determined by the user and
enclosures. The Model EPC consists of two 3/4”, feature a 1/2” FPT female pipe thread port for the inscribed on the nameplate at time of installation,
1 1/4” or 1 1/2” flush mount zinc die cast bulkhead connection of suitable conduit to an alarm device. or you may request the inscription at time of order
fittings. if already established and known.
Calibration & Operation Model
Calibration of the .07” to .15” W.C. set point is Specifications ETWN
accomplished by adjusting a set screw on the side
of the Switches, and there is an inherent delay to Dimensions: 5” W x 2” H
switch action created by the restriction of air flow Mounting Hole Diameter: 0.125”
Interior Switch
Exterior Switch
through the Switch’s flame arresting pressure ports. Location Hardware Location Hardware Adhesive Backing: * 3M VHB Achieve total compliance to NFPA 496 by applying
0.10” Anodized Aluminum
The CD Configuration Switch features a Form C Material: Silk-Screened Enamel Paint these labels to all doors of your protected enclosure!
Legends:
Model FFCF contact that is activated mechanically by the switch Both hardware kits include all essential fittings
Flush Mount Supply & Reference diaphragm. Switch Configurations B24, B120 & and fasteners to complete switch installation, * Door surfaces must be cleaned for maximum adhesion.
Please contact a Sales Associate
B240 each require a power source to energize their
Model EPC Bulkhead Connection Kit Form C contacts. - see image on Page 2 less electrical conduit fittings All Specifications subject to change without notice. for more information and customization options.
3M & VHB are trademarks of the 3M Corporation
Enclosure Pipe Connection Kit
Copyright © 2018 - Best Purging Systems Corporation All Rights Reserved Copyright © 2018 - Best Purging Systems Corporation All Rights Reserved Copyright © 2018 - Best Purging Systems Corporation All Rights Reserved
PIAD Description Model PIAD Panel Mounting Gaskets and Model PMGK Purging & Pressurization Model RAB & RAH
Model PIAD Purgeable Instrument Access Doors are custom built Purgeable Instrument Essential Fittings to adapt all Unit Accessories Remote Alarm Devices
doors with mounting frames manufactured to meet or exceed Universal Mount Model YZ Units
NEMA 12 (IP 52) or NEMA 4 or 4X (IP 56) ratings. Access Doors Panel Mount
They are intended for any application, and come in an array of Gasket Kits Typical Applications
sizes and features, manufactured to your exact specifications. Our Kit Applications
PIADs are designed to cover electrical devices which penetrate For Panel or Surface Mounted Devices in Purged, Model RAH, RAB & ERAB Alarm Beacons and Horns Class I, Division 1 & 2
the surface of an enclosure and are unsuitable for exposure to Model PMGK Panel Mount Gasket Kits permit Universal Mount Model YZ Unit Conversion Kits are intended to provide local alarms for unit faults, high
the surrounding corrosive, hazardous or classified atmosphere. Pressurized, Outdoor or Corrosive Area Enclosures installation of Universal Mount Model YZ Units temperatures, loss of pressurization or ventilation and other Alarm System Beacons & Horns
Designed for rugged duty, all Best Purging Systems PIADs feature through a cutout in any surface or door of a situations that require immediate attention from local operators
14 gauge carbon steel, aluminum or stainless steel mounting Technical Bulletin PIAD TB-R1.1 © 06.05.2020 protected enclosure. Installed in this manner, Technical Bulletin PMGK TB-R0 08.10.2018 and maintenance staff members. They work in conjunction Technical Bulletin RAD TB-R0 © 06.08.2018
frames and doors, removable stainless steel hinges,1/4” Laminated the unit becomes an integral part of the protected with any Unit featuring a pressure loss alarm switch, and may
Safety Glass, Lexan™ Margard™ MR-10 or Wire Reinforced enclosure, rather than being mounted externally at also serve as common alarms for other equipment.
Safety Glass windows with a proprietary shock-resistant mounting a perpendicular angle.
system, and replaceable, life-time warranty door gasket, with an
NFPA 496 purged enclosure warning nameplate, mounting sealant Utilize these kits to boost aesthetic and ergonomic
and mounting hardware. values of protected enclosures, minimize the overall RAH-1 Horn Description
Standard finishes include vertical or horizontal brush finishes for foot-print of protected enclosures in confined Model RAH-1 horns provide an electrically generated audible
stainless steel, a black anodized finish for aluminum or an enamel spaces and minimize exposed mechanical surface alarm. Corrosion resistance is achieved with a copper–free
paint finish on any material. Custom finishes are also available areas of protected enclosures in clean rooms. cast aluminum housing, and this horn features a vibrating
and door fastening options include hand, key or tool actuated vice stainless steel diaphragm. The horn is rated for Class I or II,
action compression latches in black polyester powder coated die Division 1 or 2 hazardous locations, can be pendant or wall
cast zinc or electro-polished 316 grade stainless steel materials. Kit Features mounted and features a 3/4” female conduit port. The horn
NEMA 12 has a 100 dBa output at a distance of 10’ with a 5 minute duty
PIAD NEMA Ratings Rating Model PMGK kits feature a unit mounting plate cycle, and the 120 VAC and 240 VAC versions feature an
internally mounted volume control for field adjustment.
gasket and an enclosure pressure gauge gasket
to provide a positive seal. They also include
As a critical design option, Purgeable Instrument Access Doors two bulkhead unions, an atmospheric pressure
from Best Purging Systems Corporation are manufactured to reference vent fitting and essential bulkhead labels. Model Model Model RAH-2 Horn Description See
meet or exceed NEMA ratings ranging from NEMA 12, 4 and 4X, Model RAH-1-P-C and dome
mounting
to satisfy increasingly harsh indoor or outdoor applications and PMGK-101A PMGK-101B PMGK-101C Model RAH-2 horns produce sound by the electro–mechanical ALARM HORN guard options
on Page 2
exposure to rain, wash-down and corrosive chemicals. Utilization Requirements vibration of a stainless steel diaphragm. The housing is water
and dust–tight, making it suitable for indoor or outdoor use.
NEMA Material Options & IP Each Model PMGK The horn can be pendant or wall mounted and features a die– Model RAB-1-C-C
Rating Resistance Parameters Rating To utilize a Model PMGK on a universal mount Kit Includes Essential cast zinc housing with a corrosion–resistant polyurethane ALARM BEACON
12 14 Gauge Carbon Steel or 52 pressurization or purging unit, an installer must Bulkhead Labels! finish. This horn is rated for Class I & II, Division 2 hazardous
perform a simple modification to reverse the
3/32” 5052 Aluminum locations, produces 100 dBa at a distance of 10’, produces
PIAD constructed for indoor use to provide a degree of protection locations of a tubing connector fitting and a vent sustained or coded tones, and includes a fused terminal block
to personnel against incidental contact with the enclosed equipment fitting on the back of the enclosure pressure gauge. connection.
and to provide a degree of protection against the ingress of dust, dirt, Furnished complete with
and dripping non-corrosive liquids, oil and lubricants. Installation Manual, NFPA The sealing gaskets must then be applied to the
12 14 Gauge 304 or 316 Grade 52 Purged Enclosure Warning unit mounting plate and enclosure pressure gauge RAB-1 Beacon Description
to form a seal resistant to rain and light wash down.
Stainless Steel Nameplate, Sealant &
PIAD constructed for indoor use to provide a degree of protection Model RAB-1 beacons provide visual alarms at 80 high–
to personnel against incidental contact with the enclosed equipment; Mounting Hardware! The protective gas supply and atmospheric intensity flashes per minute. The beacon is formed from
to provide a degree of protection against the ingress of dust, dirt, reference bulkhead unions must then be installed cast aluminum with an epoxy finish, is corrosion resistant
and dripping non-corrosive liquids, oil and lubricants, and to resist through an external surface of the protected and features a strobe tube bulb rated for 10,000 hours.
damage caused by exposure to atmospheres containing enclosure, which must then be connected to the The beacon is rated for Class I or II, Division 1 hazardous Model RAH-2-S-C
corrosive gases, dusts or vapors. * unit with tubing to provide a suitable source of locations, offered in pendant, wall or ceiling mounting styles ALARM HORN
4 14 Gauge Carbon Steel or 56 NEMA 4 & 4X protective gas and a reference to atmospheric with 3/4” female conduit ports and an optional dome guard.
pressure. As an extra benefit, labels are supplied
3/32” 5052 Aluminum
PIAD constructed for indoor or outdoor use to provide a degree of Ratings for both bulkhead unions to identify their purpose.
protection to personnel against incidental contact with the enclosed RAB-2 Beacon Description
equipment; to provide a degree of protection against falling dirt, For more information, please see complete Model RAB-2-P-C
rain, sleet, snow, windblown dust, splashing water, and Conversion and Installation Details on Page 2. Model RAB-2 has an LED lamp rated for 50,000 hours
hose-directed water; and that will be undamaged ALARM BEACON
by the external formation of ice on the PIAD. with 60 high intensity flashes per minute or a steady burn. CERTIFIED
This beacon is rated for Class I or II, Division 2 hazardous
Model
Model
Model
4X 14 Gauge 304 or 316 Grade 56 Material Specifications PMGK-102 PMGK-103 PMGK-104 locations, has a 2,000,000 peak candlepower rating. It
Stainless Steel
features a red fresnel lens and dome guard and is available in
PIAD constructed for indoor or outdoor use to provide a degree of pendant or ceiling mounting styles.
protection to personnel against incidental contact with the enclosed Unit Gasket: 1/8” Closed Cell Neoprene
equipment; to provide a degree of protection against falling dirt, Gauge Gasket: Butyl Rubber Six Unique PMGK Panel Mount
rain, sleet, snow, windblown dust, splashing water, Union Bodies & Ferrules: 316 Stainless Steel ERAB-2 Beacon Description
hose-directed water and corrosion; and that will be
undamaged by the external formation of ice on the PIAD. Shown with custom Union Fitting Nuts: Molybdenum disulfide Gasket Kits provide a total solution! Model ERAB-2 is an economical alternative, has a strobe Certifications vary
Please see Page 2
* IMPORTANT NOTE door positioning coated 316 Stainless Steel Each Model PMGK kit includes all necessary components to tube rated for 10,000 hours with 80 high intensity flashes per
The addition of resistance to corrosive atmospheres is an enhancement by the Best Atmospheric Vent: 316 Stainless Steel Body easily adapt a matching universal mount unit for sealed panel minute or a steady burn. This beacon is rated for Class I or II,
Contact our factory for optional
Purging Systems Corporation to the standard NEMA definition for a NEMA 12 rating. hardware! 304 Stainless Steel Element mounting through a protected enclosure surface cutout. Division 2 hazardous locations, features a red lens and globe Model RAB-1 & RAB-2 dome guards and Model ERAB-2-P-C
guard and is available in a pendant mounting style. alternate Model RAB and ERAB dome colors! ECONOMY ALARM BEACON
Copyright © 2020 - Best Purging Systems Corporation All Rights Reserved Copyright © 2018 - Best Purging Systems Corporation All Rights Reserved
Redundant Overpressure Model RR-4,
Protection Regulators for
Model 101A, 101B & 101C Units RR-6, & RR-8
Application
Overpressure Protection
Model RR Redundant Regulators are intended to Redundant Regulators
satisfy NFPA 496 requirements for preventing the
possibility of enclosure over-pressurization due to
excessive protective gas supply pressure. Technical Bulletin RR TB-R0 © 07.20.2018
Each regulator features a removable adjustment
knob to render it tamper-proof at the user’s
discretion. The regulators feature a 0-30 psi gauge,
and when installed upstream of a Model 101A,
101B or 101C Enclosure Pressurization Unit, and
properly calibrated as recommended on page 2,
will serve as an up-stream protective gas supply
safety device.
Model RR Redundant Regulators are identical to
the Enclosure Pressure Control Regulators of the
Units they protect, so the adjustment knobs of both
regulators are interchangeable if needed.
Optional Installation Kits
Model RR Redundant Regulators are suitable for
in-line mounting and may be adequately supported
by threaded pipe headers. All Models are
offered with optional
However, we offer optional industrial grade Mounting Hardware &
mounting hardware and tube fittings to facilitate
the proper installation of these regulators. Tube Fitting Kits!
The kits include a 14 gauge 316 stainless steel
regulator bracket, a regulator mounting ring,
neoprene o-ring sealing screws, neoprene gasket
backed 18-8 stainless steel sealing washers, 316
stainless steel nylon locking nuts and two 316
stainless steel 90 degree elbow tube fittings.
Alternative Solution
In certain circumstances, such as an analyzer
or process measurement meter application, a
protected enclosure may contain other potential
sources of high pressure gases, in either
combustible, flammable or inert compositions.
We therefore offer Model PV Purge Vents
as a viable alternative for protection against
excessive protective gas supply pressure and
over-pressurization due to other sources of
internal overpressure. Consider this alternative if
warranted by your application, and contact a Sales
Associate for more information.
Model PV Vents
can act to relieve
excessive protective
gas supply AND internal
sources of overpressure!
Copyright © 2018 - Best Purging Systems Corporation All Rights Reserved