FAILURE OR IMPROPER SELECTION OR IMPROPER USE OF THE PRODUCTS DESCRIBED HEREIN OR RELATED ITEMS CAN CAUSE DEATH, PERSONAL INJURY AND
PROPERTY DAMAGE.
This document and other information from Parker-Hannifin Corporation, its subsidiaries and authorized distributors provide product or system options for further investigation by users
having technical expertise.
The user, through its own analysis and testing, is solely responsible for making the final selection of the system and components and assuring that all performance, endurance,
maintenance, safety and warning requirements of the application are met. The user must analyze all aspects of the application, follow applicable industry standards, and follow the
information concerning the product in the current product catalog and in any other materials provided from Parker or its subsidiaries or authorized distributors.
To the extent that Parker or its subsidiaries or authorized distributors provide component or system options based upon data or specifications provided by the user, the user is responsible
for determining that such data and specifications are suitable and sufficient for all applications and reasonably foreseeable uses of the components or systems.
Offer of Sale
The items described in this document are hereby offered for sale by Parker-Hannifin Corporation, its subsidiaries or its authorized distributors. This offer and its acceptance are governed by
the provisions stated in the detailed “Offer of Sale” elsewhere in this document or available at www.parker.com/ipdus.
Thread & Tube End Size Chart (USA) .......................................................................... 80
Offer of Sale ..................................................................................................................84
Parker Motion & Control Technologies .................................................. inside back cover
1
Parker Hannifin Corporation
Instrumentation Products Division
Huntsville, AL USA
http://www.parker.com/ipdus
CPI™ / A-LOK® Tube Fittings
Catalog 4230/4233
Introduction
Parker CPI™ / A-LOK® Instrumentation Tube Fittings
are designed as leak-free connections for process,
power and instrumentation applications. These
single and two ferrule fittings are manufactured to
the highest quality standards and are available in a
broad range of sizes, materials and configurations.
Features
The Parker CPI™ / A-LOK® tube fitting has been
specifically designed for use on instrumentation,
process and control systems, analysers and
environmental equipment employed in chemical,
petroleum, power generating and pulp and paper
plants. CPI™ / A-LOK® fittings have also been used
extensively in other applications and industries
wherever high reliability and quality are required.
Materials
Parker CPI™ / A-LOK® fittings are available as standard in Heat Code Traceable, 316 stainless steel.
Other materials include steel, brass, aluminum,
nickel-copper, Hastelloy C®, Alloy 600, Titanium,
6Mo, Incoloy 625 and 825. Straight fittings are
machined from cold finished bar stock and shaped
bodies are machined from close grain forgings. The
raw materials used fully conform to the chemical
requirements listed in Specification Table 1 found on
page 6. For nuclear and other critical applications,
stainless steel CPI™ / A-LOK® fittings are readily
available with documented heat code traceability.
Pipe Fittings/Adapters
Parker CPI™ / A-LOK® tube fittings are available in
combination with a variety of ISO and ANSI pipe
thread configurations. For a full listing of these
fittings, see Catalog 4260.
Tubing
Parker CPI™ / A-LOK® tube fittings can be used
with a wide variety of tubing materials and a broad
range of tube wall thicknesses. CPI™ / A-LOK® seals
equally well on both thin wall and heavy wall tubing.
Tubing and fitting materials should be selected
to be compatible with the fluid media. Due to
thermal expansion characteristics and chemical
stability, the tubing should be of the same material as the fitting. (The exception is brass fittings
and copper tubing.)
Torque
Parker CPI™ / A-LOK® tube fittings do not twist the
tubing during installation. CPI™ / A-LOK® ferrule
designs assure that all make and remake motion
is transmitted axially to the tubing. Since no radial
movement of the tubing occurs, the tubing is not
stressed. The mechanical integrity of the tubing is
maintained.
No Distortion
In make-up, there is no undue force in an outward
direction to distort the fitting body or ferrules to
cause interference between the ferrules and nut.
This assures that the nut will back-off freely for
disassembly and permits a greater number of easy
remakes.
Sealing
Positive, reliable connections with Parker CPI™/
A-LOK® fittings have been qualified by exhaustive
tests and over four decades of experience in the
manufacture of quality tube fittings.
Nomenclature
Parker CPI™ / A-LOK® fitting part numbers are
constructed from symbols that identify the size
and style of the fitting and material used.
Assembly, Remake, Gaugeability
Proper assembly is the key component to a
leak-free system. CPI™ / A-LOK® tube fitting
assembly, remake and gaugeability instructions
are found on page 75 of this catalog.
Pressure Rating & Tubing Selection
For working pressures of CPI™ / A-LOK® tube
connections, please see pages 76 – 79 of this
catalog, the Instrument Tubing Selection Guide
(4200-TS) found in the Technical Section of
your Parker Instrumentation Products Process
Binder, or the Parker Instrument Tube Fitting
Installation Manual (Bulletin 4200-B4).
In cases where a male or female pipe thread is
the second end of a Parker CPI™ / A-LOK
such threads may be the pressure limiting factor
of the tubing system. Pressure ratings for Pipe
Ends are shown on page 79.
®
fitting,
2
Parker Hannifin Corporation
Instrumentation Products Division
Huntsville, AL USA
http://www.parker.com/ipdus
Catalog 4230/4233
CPI™ / A-LOK® Tube Fittings
Parker CPI™ / A-LOK® fittings consists of precision engineered parts designed to provide secure leak-proof
joints capable of satisfying high pressure, vacuum and vibration applications.
Inch — CPI™
The Parker Suparcase®
ferrule provides a
strong mechancial
and anti-vibration
hold on the tube
Molybdenum disulfide
coated nut with fine
pitch threads ensure
no galling
Metric — CPI™
The Parker Suparcase
ferrule provides a
strong mechancial
and anti-vibration
hold on the tube
Molybdenum
disulfide coated
nut with fine pitch
threads ensure no
galling
®
Inch — A-LOK
Dynamic seal
by ferrule on
tube and body
Close tolerance
of nut and body
dimensions for
accurate tube
alignment
The Parker
Suparcase
ferrule provides a
strong mechanical
and anti-vibration
hold on the tube.
Parker’s high
quality, silver
plated nut ensures
no galling of body
threads
®
back
Metric — A-LOK
Metric identification
shoulder
Dynamic seal by
ferrule on tube and
body
Close tolerance
of nut and body
dimensions for
accurate tube
alignment
The Parker
Suparcase
ferrule provides a
strong mechanical
and anti-vibration
hold on the tube.
Parker’s high
quality, silver
plated nut ensures
no galling of body
threads
®
back
®
Pressure seal
by front ferrule
on tube and
body
Deep tube abutment
and close tolerance
of nut and body for
accurate tube alignment
®
Metric
identification
shoulder
Pressure
seal by front
ferrule on
tube and
body
Deep tube
abutment and
close tolerance
of nut and body
for accurate
tube alignment
Parker Instrumentation Tube Fittings are supplied complete and ready to use. The ferrule(s) swage onto the
tube as it moves down the body seat creating a pressure/vacuum-tight seal on both tube and body by the
interface pressure and surface finish of mating components. The Parker Suparcase® ferrule (back-ferrule only
on A-LOK®) creates a strong mechanical hold on the tube.
3
Parker Hannifin Corporation
Instrumentation Products Division
Huntsville, AL USA
http://www.parker.com/ipdus
CPI™ / A-LOK® Tube Fittings
BSPP
BSP
Visual Index
Tube to Male Pipe
Male Connector
FBZ, MSC
pages 9, 10,
11, 12, 13
Male Bulkhead Connector
FH2BZ, MBC
page 14
Thermocouple Connector
FH4BZ, MTC
page 15
Male Elbow
CBZ, MSEL
pages 15, 16, 17
NPT Male 45° Elbow
VBZ, MVEL
page 18
NPT Male Run Tee
RBZ, MRT
page 19
NPT Male Branch Tee
SBZ, MBT
page 20
Tube to Female Pipe
Female Connnector
GBZ, FSC
pages 21, 22
Female Bulkhead
Connector
GH2BZ, FBC
page 23
Gauge Connector
GBZ, FSC
pages 23, 24
Female Elbow
DBZ, FEL
page 24
Female Run Tee
MBZ, FRT
page 25
Female Branch Tee
OBZ, FBT
page 26
Tube to Tube Unions
Union
HBZ, SC
page 27
Conversion Union
HBZ, CU
page 28
Reducing Union
HBZ, RU
page 28
Bulkhead Union
WBZ, BC
page 29
Dielectric Union Adapter,
Dielectric Assembly
DEBTADELTA
page 30
Union Elbow
EBZ, EE, ELZ
pages 30, 31
Union Tee
JBZ, ET
page 32
Drop Size Tee
JBZ, JLZ
page 33
Union Cross
KBZ, ECR
page 34
Port Connectors
Tube End Reducer
TRBZ, TUR,
TUC
pages 35, 36, 37
Tube End Bulkhead
Adapter
T2H2BZ,
TUBC
page 38
Port Connector
ZPC, PC
page 38
Tube End Male Adapter
T2HF, MA
pages 39, 40,
41, 42
Tube End to SAE Straight
Thread Adapter
T2HOA, TUOHA
page 43
Tube End Female Adapter
T2HG, FA
pages 43, 44, 45
Push-Lok to Tube Adapter
P2T2, P2TU
page 45
Push-Lok to Male Adapter
P2HF
page 46
Push-Lok to CPI™/
®
A-LOK
P2BZ6, P2LZ6
page 46
Push-Lok to Port
Connector
ZPB2, ZPC2
page 46
Lapped Joint Tube
Adapters
LJFBZ, LJF
page 47
Catalog 4230/4233
DP Transmitter Calibration
Adapters
ZH2LX
page 47
37° Flare (AN) to
CPI™ / A-LOK
37° Flare (AN) to CPI™/
®
A-LOK
X6HBZ6, X6TU
page 48
37° Flare Connector to
CPI™ / A-LOK
XHBZ, XASC
page 48
37° Flare Bulkhead
Connector to CPI™/
®
A-LOK
XH2BZ,
XABC
page 48
®
®
Tube to O-Ring Seal
Male Connector SAE
Straight Thread
ZHBA, M1SC
page 50
Male SAE Straight Thread
Elbow
C5BZ, M5SEL
page 51
Male BSPP Straight
Thread Elbow
CBZ, MSEL
page 51
Male Run Tee SAE
Straight Thread
R5BZ,
M5RT
page 52
Male BSPP Run Tee
Straight Thread
RBZ, MRT
page 52
4
Parker Hannifin Corporation
Instrumentation Products Division
Huntsville, AL USA
http://www.parker.com/ipdus
Catalog 4230/4233
Visual Index
Male Branch Tee SAE
Straight Thread
S5BZ,
M5BT
page 53
Male BSPP Branch Tee
Straight Thread
SBZ, MBT
page 53
Long Male Connector SAE
Straight Thread
ZH3BA, ZH3LA
page 54
45° Positionable Male
Elbow
V5BZ, M5VEL
page 54
Male Connector to O-Ring
Straight Thread
ZHBA5, M2SC
page 55
Male Connector to O-Ring
Pipe Thread
ZHBF5, M3SC
page 55
Tube End to O-Ring
Straight Thread
T2HOA5, M2TU
page 56
Tube End to O-Ring Pipe
Thread
T2HOF5, M3TU
page 56
Pipe Thread to SAE
Straight Thread Adapter
FHOA
page 57
Bulkhead to Conversion
Adapter
AH2BZ, AH2LZ
page 57
Tube to Welded
Systems
Socket Weld Elbow
ZEBW, ZELW
page 59
Buttweld Elbow
ZEBW2, ZELW2
page 59
Socket Weld Connector
ZHBW, ZHLW
page 60
Buttweld Connector
ZHBW2, ZHLW2
page 60, 61
Analytical Fittings
Column End Fitting — Low
Internal Volume
with Frit
Z2HCZ7, Z2HLZ7
page 63
Column End Fitting — Low
Internal Volume
Z3HCZ7, Z3HLZ7
page 63
Column End Fitting — Low
Internal Volume
(without Frit)
ZHCZ7, ZHLZ7
page 64
Column End Fitting — with
Frit
Z2HCZ, Z2HLZ
page 64
Column End Fitting
(without Frit)
ZHCZ, ZHLZ
page 65
Union Connector — Low
Dead Volume
Z7HBZ7,
Z7HLZ7
page 65
CPI™ / A-LOK® Tube Fittings
Male Connector — Low
Dead Volume
FBZ7, FLZ7
page 66
Sanitary Flange Fitting
ZHBS, ZHLS
page 66
Barbed Fittings
Barbed Connector to
Male Pipe
B2HF
page 67
Barbed Connector to
Tube Adapter
B2HT2, B2TU
page 67
Hose Connector Sleeve
HCS
page 67
Components
Insert
TIZ
page 68
Tube Nut
BZ, NU
page 68, 69
Inverted Tube Nut
BZI
page 69
Knurled Nut
BZP
page 69
Ferrules
TZ
page 69
Front Ferrules
FF
page 70
Back Ferrules
BF
page 70
Ferrule Holder
page 70
Plug
FNZ, BLP
page 71
Cap
PNBZ, BLEN
page 71, 72
Vent Protector
MDF
page 72
Sealing Washers
Bonded Seal and Copper
page 73
Bulkhead Locknut
WLZ, WLN, BN
page 74
Accessory Locknut
L5NR
page 74
Reference Material
Assembly and Remake
Instructions
page 75
Gaugeability Instructions
page 75
Instrument Tubing
Selection Guide
pages 76 – 79
Pipe End Pressure
Ratings
page 79
Thread and Tube End
Size Charts (USA/
International)
pages 80 – 82
Offer of Sale
page 84
5
Parker Hannifin Corporation
Instrumentation Products Division
Huntsville, AL USA
http://www.parker.com/ipdus
CPI™ / A-LOK® Tube Fittings
Table 1 – Typical Raw Material Specifications
BASIC
FITTING MATERIAL
BrassBCA-360
Stainless Steel (Type 316)
(1)
SteelSASTM-A-108
AluminumA2017-T4 or 2024-T4
®
400 – Forgings
Monel
®
405 – Bar Stock
Monel
®
Hastelloy
Inconel
Carpenter
TitaniumTASTM-B-348ASTM-B-381ASTM-B-338
Inconel
Incoloy
C-276HCASTM-B-574
®
Alloy 600INASTM B-166
®
20SS20ASTM-B-473ASTM-B-462
®
Alloy 625625BS3076 NA16
®
Alloy 825825
6MO6MOUNS S31254
(1) If more specific information, including heat code traceability, is required, your Parker Hannifin CPI™ / A-LOK® distributor will provide details.
(2) If an “L” appears in the A-LOK
(3) Stainless steel CPI
NOTE: Hastelloy
Carpenter
®
is a registered trademark of CRS Holdings Inc.
™
/ A-LOK® tube fittings work reliably on both seamless and welded-redrawn, fully annealed type 304, 316 and 316L tubing.
®
is a registered trademark of Haynes International. Inconel®, Incoloy® and Monel® are registered trademarks of Special Metals Corporation.
Parker CPI™ / A-LOK® tube fitting part numbers are constructed using alphanumeric characters to identify the size, style and
material of the fitting.
CPI™ Inch Parts
Port 1 Size
Designator
Example: 8 – 4 FBZ – SS
1/2" Tube O.D. – 1/4" Pipe Thread (blank – see Note 1 below) Male Connector – Stainless Steel – (blank)Part Number as it is ordered (without options): 8-4 FBZ-SS. This part appears on page 9 and is a CPI™ NPT male connector.
–––
Designator
Thread
Designator
Shape
Designator
A-LOK® Inch Parts
Port 1 Size
Designator
Example: 8 MSC 4 N – 316
1/2" Tube O.D. Male Connector 1/4" Pipe Thread NPT – Stainless Steel – (blank)Part Number as it is ordered (without options): 8MSC4N-316. This part appears on page 9 and is an A-LOK® NPT male connector.
Designator
Port 2 Size
Designator
Thread
Designator
––
CPI™ Metric Parts
Port 1 Size
Designator
Example: GBZ 12 – 1/4 K – SS
Female Connector 12mm – 1/4" BSP – Stainless Steel – (blank)Part Number as it is ordered (without options): GBZ 12-1/4K-SS. This part appears on page 21 and is a CPI™ NPT female connector.
Port 2 Size
Designator
Thread
–
Size
Designator
A-LOK® Metric Parts
Port 1 Size
Designator
Example: M12 FSC 1/4 N – 316
12mm Female Connector 1/4" NPT – Stainless Steel – (blank)
Part Number as it is ordered (without options): M12FSC1/4N-316. This part appears on page 21 and is a A-LOK® NPT female connector.
Body Designator: A letter or combination of letters and numbers are used to designate the type of fitting. See the visual index on pages 4 – 5
for body designator.
Fractional Size: Tube and pipe thread sizes are designed by the number of sixteenths of an inch (1/2" tube = 8/16" = 8)
(1/4" pipe thread = 4/16" = 4).
Metric Size: Metric tube is designated in millimeters and prefixed “M” (i.e., 12mm tube – M12.) The pipe thread size is written as a fraction
(i.e., 1/4 NPT = 1/4).
All Straights & Elbows: Call out largest CPI™ / A-LOK
Fractional Tees & Crosses: For drop size tees – first size the run (1 to 2) and then branch (3). Example – the size
designator for a male run tee for 3/8" O.D. tube and 1/4" male pipe thread would be 6-4-6. For crosses – first size
the run (1 to 2) and then the branch (3 to 4). For tees with all ends the same, use the tube and size before and
after the style designator; i.e. 4-4-4 JBZ (CPI™), 4ET4 (A-LOK®).
Metric Tees & Crosses: For drop size tees – first size the run (1 to 2) and then branch (3). Example – the size
designator for a male run tee for 6mm tube and 1/4" male pipe thread would be 6-4-6. For crosses – first size the
run (1 to 2) and then the branch (3 to 4). For tees with all ends the same, use the tube end size after the style
designator; i.e. JBZ 4-4-4 JBZ (CPI™), ETM4 (A-LOK®).
Material: See Table 1 on the previous page for the material symbol.
Thread Types:
N = NPT
(1)
/ National Pipe Taper ANSI B1.20.1
K = BSP / ISO TaperBS21, ISO7/1
R = BSP / ISO ParallelBS2779, ISO 228/1+2, DIN 3852 FORM A
BR = BSP / ISO ParallelBS2779, ISO 228/1+2, DIN 3852 FORM B
M = Metric ThreadISO 6149-2
R-ED = BSPP / ISO ParallelBS2779, ISO 228/1+2, DIN 3852 with elastic sealing washer
GC = BSPP Gauge Connector B2779, ISO 228/1+2, DIN 3852
(1) N thread designator is only used for A-LOK® nomenclature.
(2) Form A requires the use of a bonded washer. See page 73 of this catalog.
(3) Form B (cutting face) may be used with or without a sealing washer.
(4) ED fittings are supplied with Nitrile sealing washers as standard. Fluorocarbon seals are available
upon request.
Special Fittings: Consult the factory. If there is any question as to the fitting desired, particularly for
special fitting configurations, it is suggested that a customer print be submitted.
Special Options: See the following page for available options.
Shape
Designator
Port 2 Size
Designator
®
tube end size first followed by the smaller CPI™ / A-LOK® tube end or pipe thread size.
Designator
––
Material Port 2 Size
Material Shape
Material Thread
–
Material Thread
(2)
(3)
(see page 8)
Options
(see page 8)
–
See page 8
Options
See page 8
(4)
Options
Options
Color Coding
For easy reference, table
column headings are
color indicated as follows:
fractional
metric
7
Parker Hannifin Corporation
Instrumentation Products Division
Huntsville, AL USA
http://www.parker.com/ipdus
CPI™ / A-LOK® Tube Fittings
Catalog 4230/4233
CPI™ / A-LOK® Options
Parker CPI™ / A-LOK® fittings may be ordered with the following options.
How to order
After the complete CPI™ / A-LOK® number simply add a "dash" then the suffix for the option.
The following example is an A-LOK® male connector for 1/2" OD tube and 1/4" male pipe that has been cleaned for oxygen
service. For additional options, please consult the factory.
8MSC4N-316-C
SuffixOptionAdditional Information
ZYFAssembled with nylon ferrule(s)
SPFSilver plated ferrule(s)
TFPTFE ferrule(s)
BP*Bulk packed* Indicates the quantity i.e BP50 for a fifty count package.
LWHLock wire hole
BZPKnurled nut
CSilver plated nutReplaces moly coated nut (BZ).
MIMoly inside nut
CNQCertified Nuclear Quality
C1Grade A Cleaning
C3Cleaned for oxygen service
CNGCompressed natural gas serviceAssembled with a specific o-ring compound.
NICNickel plated
CRM Chrome plated
VOViton O-ring
NCNACEMRO175-2003
NACENACEMRO175-2002
DFARS
Defense Acquisition Regulations
System
Replaces standard nut on CPI™/A-LOK
soft plastic tubing.
Special cleaning, assembly, inspection and packaging for
high purity applications.
Meets the requirements of ASTM G93-88; Standard
Practice for Cleaning Methods for Materials and Equipment
used in Oxygen-Enriched Environments.
All components and raw material must be of US origin or
from an approved country.
®
fittings for use on
8
Parker Hannifin Corporation
Instrumentation Products Division
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http://www.parker.com/ipdus
NOTE:A and C dimensions are typical finger-tight. Dimensions for reference only, subject to change.
Sealing washer must be used with BSPP end shown ISO228/1 (Form A). See page 73.
For Form B undercut change part number and add B before R. e.g. M6MSC1/4BR.
NOTE: A and C dimensions are typical finger-tight. Dimensions for reference only, subject to change.
ED fittings are supplied with sealing washers in nitrile as standard, suitable for temperatures of between -35°C and +100°C
(-31°F to +212°F). Fluorocarbon seals are available upon request which are suitable for temperatures of between -25°C and
+120°C (-13°F to +248°F).
NOTE:A and C dimensions are typical finger-tight. Dimensions for reference only, subject to change.
ED fittings are supplied with sealing washers in nitrile as standard, suitable for temperatures of between -35°C and +100°C
(-31°F to +212°F). Fluorocarbon seals are available upon request which are suitable for temperatures of between -25°C and
+120°C (-13°F to +248°F).