Introduction

Parker Hannifin MPI™ Fittings* have been engineered and manufactured to provide secure, tight, and leak-resistant connections throught industry, including off-shore oil and gas exploration platforms, research labs, and other facilities that require operating pressures in the range of 6,000 to 15,000 psi.

MPI™ Fittings are ideally suited to handle liquids, gases, or chemicals and can be used on a wide variety of tubing materials including cold drawn – 1/8 hard (unannealed) tubing or instrument grade thick-walled annealed stainless steel. Every Parker MPI™ Fitting is supplied complete and ready to install.

Advanced Features

Every MPI™ Fitting has the features shown below:

  1. Front ferrule with corrosion-resistant Parker SUPARCASE® forms a tight pressure seal between the body and ferrule in a second strong mechanical hold on the tube.
  2. Rear ferrule with corrosion-resistant Parker SUPARCASE® provides a strong mechanical hold on the tube.
  3. Longer thread area for improved resistance to pressure and load on the ferrules.
  4. Molybdenum disulfide-coated inverted nut helps prevent galling, provides easier assembly and permits multiple remakes.
  5. Long tube-support area improves resistance to vibration and line loads.

Materials and Identification

Standard MPI™ Fittings are made of Heat Code Traceable 316 stainless steel. Tubing and fitting materials should be selected based on compatibility with the fluid or gas media.

Part numbers for MPI™ Fittings use symbols that identify their style, size and composition.

MPI™ Fittings Pressure Ratings

The maximum pressure rating is marked on each fitting. MPI™ Fittings are designed to a 4 to 1 safety factor.

  • Size 4 MPI™ end – to 15,000 psi
  • Size 6 MPI™ end – to 12,000 psi
  • Size 9 MPI™ end – to 10,000 psi

Assembly

MPI™ Fittings are installed with standard hand tools. Each size can be preset with a Parker hydraulic preset tool. Tube preparation does not require cutting of threads or tube end “coning”.

* Patent Pending

Assembly, Remake & Gaugeability Instructions

1.Parker MPI™ Fittings are sold completely assembled and ready for immediate use. Simply insert the tube as illustrated until it bottoms in the fitting body. (If the fitting is disassembled, note that the small tapered end of the ferrule(s) go into fitting body.)

2.For MPI™ Fittings from 1/4” to 1”, turn the nut to the “finger-tight” position. Hold the fitting body hex with a second wrench to prevent the body from turning as you continue tightening the nut. Use a wrench to tighten the nut 1 1/2 turns. Parker recommends that you mark the nut (using a scribe or ink) to help you count the turns.

3.For maximum number of remakes, mark the fitting and nut before disassembly. Before retightening, make sure the assembly has been inserted into the fitting until the ferrule seats in the fitting. Retighten the nut by hand. Rotate the nut with a wrench to the original position as indicated by the previous marks lining up. (A noticeable increase in mechanical resistance will be felt indicating the ferrule is being re-sprung into sealing position.)

4.Finally, check the gap between the nut and the body hex with the end of the gauge by inserting the gauge (as shown) into the beveled gap between the nut and body hex. Gently turn the gauge (that is, it “twists out”). However, if the gauge slides into the beveled gap, (does not “twist out”) the fitting is not properly made up and you must check the entire assembly procedure.

WARNING

FAILURE, IMPROPER SELECTION OR IMPROPER USE OF THE PRODUCTS AND/OR SYSTEMS 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 and/or system options for further investigation by users having technical expertise. It is important that you analyze all aspects of your application and review the information concerning the product or system in the current product catalog. Due to the variety of operating conditions and applications for these products or systems, the user, through its own analysis and testing , is solely responsible for making the final selection of the products and systems and assuring that all performance, safety and warning requirements of the application are met.

The products described herein, including without limitation, product features, specifications, designs, availability and pricing, are subject to change by Parker Hannifin Corporation and its subsidiaries at any time without notice.

FBMP7 MPI™ Male Connector

PARKER PART NO INCHES
TUBE O.D. A B D NPT THREAD W HEX WORKING PRESSURE
Dimensions for reference only, subject to change
4-2 FBMP7 1/4 1.91 .38 1.03 1/8 – 27 5/8 15,000
4-4 FBMP7 1/4 2.10 .57 1.03 1/4 – 18 5/8 15,000
6-4 FBMP7 3/8 2.43 .57 1.24 1/4 – 18 3/4 12,000
6-6 FBMP7 9/16 2.91 .57 1.59 3/8 – 18 1 1/16 10,000
9-8 FBMP7 9/16 3.04 .76 1.53 1/2 – 14 1/16 10,000

X32HBMP7 MPI™ to Medium Pressure Adapter

PARKER PART NO INCHES
TUBE O.D. A B D NPT THREAD W HEX WORKING PRESSURE
Dimensions for reference only, subject to change
4-4 X42HBMP7 1/4 2.34 .81 1.03 7/16 – 20 5/8 15,000
6-6 X42HBMP7 3/8 2.93 .94 1.37 9/16 – 18 3/4 12,000
9-9 X42HBMP7 9/16 3.36 1.13 1.48 13/16 – 16 1 10,000

GBMP7 MPI™ Female Connector

PARKER PART NO INCHES
TUBE O.D. A D NPT THREAD W HEX WORKING PRESSURE
Dimensions for reference only, subject to change
4-2 GBMP7 1/4 2.06 1.56 1/8 – 27 13/16 10,000
4-4 GBMP7 1/4 2.25 1.75 1/4 – 18 1 10,000
6-2 GBMP7 3/8 2.37 1.74 1/8 – 27 13/16 10,000
6-4 GBMP7 3/8 2.56 1.93 1/4 – 18 1 10,000
9-4 GBMP7 9/16 2.93 2.18 1/4 – 18 1 1/16 10,000

WBMP7 MPI™ Bulkhead Union

PARKER PART NO INCHES
TUBE O.D. A D H MAX T W HEX WORKING PRESSURE
Dimensions for reference only, subject to change
4-4 WBMP7 1/4 2.88 1.88 .88 .50 5/8 15,000
6-6 WBMP7 3/8 3.44 2.19 1.07 .56 3/4 12,000
9-9 WBMP7 9/16 4.08 2.58 1.20 .69 1 10,000

HBMP7 MPI™ to Tube Union

PARKER PART NO INCHES
TUBE O.D. A D W HEX WORKING PRESSURE
Dimensions for reference only, subject to change
4-4 HBMP7 1/4 2.88 1.88 5/8 15,000
6-6 HBMP7 3/8 3.44 2.19 3/4 15,000
9-9 HBMP7 9/16 4.08 2.58 1 12,000

EBMP7 MPI™ Union Elbow

PARKER PART NO INCHES
TUBE O.D. C H L MAX W TH’K WORKING PRESSURE
Dimensions for reference only, subject to change
4-4 EBMP7 1/4 1.53 1.88 1.03 5/8 15,000
6-6 EBMP7 3/8 1.86 2.25 1.24 3/4 12,000
9-9 EBMP7 9/16 2.29 2.88 1.54 1 10,000

JBMP7 MPI™ Union Tee

PARKER PART NO INCHES
TUBE O.D. A C H L W TH’K WORKING PRESSURE
Dimensions for reference only, subject to change
4-4-4 JBMP7 1/4 3.06 1.53 1.88 1.03 5/8 15,000
6-6-6 JBMP7 3/8 3.72 1.86 2.25 1.24 3/4 12,000
9-9-9 JBMP7 9/16 4.57 2.29 2.88 1.54 1 10,000

MP7PC MPI™ Port Connector

PARKER PART NO INCHES
TUBE STUB A K WORKING PRESSURE
Dimensions for reference only, subject to change
4-4 MP7PC 1/4 2.69 2.23 15,000
6-6 MP7PC 3/8 3.17 2.64 12,000
9-9 MP7PC 9/16 3.82 3.07 10,000

TRBMP7 MPI™ to Tube Reducer

PARKER PART NO. T TUBE STUB T TUBE O.D. WORKING PRESSURE
Dimensions for reference only, subject to change
4-6 TRBMP7 1/4 3/8 15,000
4-9 TRBMP7 1/4 9/16 15,000
6-4 TRBMP7 3/8 1/4 12,000
6-9 TRBMP7 3/8 9/16 15,000
9-4 TRBMP7 9/16 1/4 12,000
9-6 TRBMP7 9/16 3/8 15,000

NOTE: Tube stubs are designed for MPI™ Fittings – Tube O.D.2

X42HT7 Tube Stub to Pressure Male Tube Adapter

PARKER PART NO. T1 TUBE STUB MEDIUM PRESSURE ADAPTER SIZE WORKING PRESSURE
Dimensions for reference only, subject to change
4-4 X2HT7 1/4 1/4 15,000
6-6 X2HT7 3/8 3/8 12,000
9-9 X2HT7 9/16 9/16 10,000

NOTE:Tube stubs are designed for MPI™ Fittings.

JBMP7 MPI™ Union Tee

PARKER PART NO INCHES
TUBE O.D. A WORKING PRESSURE
Dimensions
for reference only, subject to change
4 FNMP7 1/4 1.41 15,000
6 FNMP7 3/8 1.65 12,000
9 FNMP7 9/16 2.00 10,000

MPFF MPI™ Front Ferrule

PARKER PART NO TUBE O.D.
Dimensions
for reference only, subject to change
4 MPFF 1/4
6 MPFF 3/8
9 MPFF 9/16

PNBMP7 MPI™ Tube Cap

For capping open ended tubing

PARKER PART NO. INCHES
TUBE O.D. A D W HEX WORKING PRESSURE
Dimensions for
reference only, subject to change
4 PNBMP7 1/4 1.69 1.19 5/8 15,000
6 PNBMP7 3/8 2.12 1.49 3/4 12,000
9 PNBMP7 9/16 2.71 1.96 1 10,000

MPBF MPI™ Back Ferrule

PARKER PART NO TUBE O.D.
Dimensions
for reference only, subject to change
4 MPBF 1/4
6 MPBF 3/8
9 MPBF 9/16

BMP7 MPI™ Inverted Nut

PARKER PART NO. INCHES
TUBE O.D. A
Dimensions
for reference only, subject to change
4 BMP7 1/4 .81
6 BMP7 3/8 .92
9 BMP7 9/16 1.03