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Purpose
Purpose
The purpose of this procedure is to establish the minimum requirements to safely operate a Stainless Tubing Bender sizes from 1/4" up to 1/2" size tubing, and to bend stainless tubing so that it is bent in the correct angles to prevent kinking of the tubing and create smooth flow of the tubing to the directed areas as needed.
Stainless Steel Tubing larger than 1/2" is not covered in this procedure.
Procedure
Procedure
This procedure applies to all hand held and operated tubing bender sizes. The correct size tubing bender should be used that is designed for the tubing size that is being bent. (For example 1/4" tubing requires a 1/4" tubing bender. Do Not use a 3/8" tubing bender for tubing smaller than 3/8" tubing.) .
Familiarize yourself with the tubing bender components and how the tubing bender moves and operates when being held.
(The type tubing bender shown below is the Imperial Eastman type bender. Other brands may physically look different but operate the same basic way)
The procedure for using a tubing bender to bend tubing is as follows:
Determine where the bend needs to be located by measuring the required distance from the end of the tubing or from the center of the last bend. Using a pen or pencil, mark the point on the tubing where the bend is needed.
Holding the Form Wheel Handle in the left hand and place the Form Handle to the position shown in the diagram below.
Position the tubing in the bender as follows:
If the end of the tubing or bend of the tubing from which you measured is left of the Tube Clamp on the Form Wheel Handle, the measured mark should be directly under the graduation mark farthest to the right (It will most likely be an "L" mark but either be an "O" or "90" depending on the brand of tubing bender being used.) See example below.
It is a good practice to make all the bends from the same direction of the tubing bender if at all possible, changing from "L" to "R" on the Form Handle can be confusing when trying to make a piece of tubing fit in a designated location.
As a general rule most experienced people that bend tubing keep the tubing that is being bent on the left of the tubing bender and will be using using the "L" mark on the Form Handle.
If the end or bend which you measured is right of the Tube Clamp on the Form Wheel Handle, set the mark on the tubing directly under the graduation mark "R" located on the Form Handle, as shown in the example below.
Before making the bend in the tubing make sure the measured mark on the tubing is under the "L" or "R" mark on the Form Handle depending which way is needed to make the proper bend in the tubing.
With the tubing at the correct mark then with a steady motion, pull the Form Handle around clockwise until the "0" mark on the Form Handle is directly opposite of the degree angle bend you are making on the Form Wheel.
The example below shows a 90 deg bend.
After making a bend in the tubing it is very common to have what is called springback of the tubing. All tubing sizes will exhibit springback after a bend has been completed. The amount of springback depends on the bend angle, bend radius, tubing material, and tubing wall thickness.
Experience will help predict the amount of springback. Expect to allow up to 1 to 3 deg compensation after a bend has been made.
Verify the correct bend angle using a square if bending 90 deg angle bends, or a protractor if bending at other angles to make sure the desired bend angle had been achieved.
If more than one bend is required, measure from the center line of the first bend and mark on the tubing where the next bend is needed.
45 deg Offset Tubing Bend
The function of a 45 deg offset tubing bend is to allow access to the tubing connection for maintenance. If tubing connections were laid side by side, it would be almost impossible to do maintenance on individual tubing lines in that group.
The example below shows what a group of tubing connections would look like without offset tubing bends and what if looks like when the 45 deg offset bends are made.
A 45 deg offset tubing bend is relatively simple to perform. The process is as follows:
Inset the end of the tubing to the edge of the Form Wheel Handle. Make sure the tubing is engaged in the Tube Clamp as in the example below.
Hold the Form Wheel Handle steady with the left hand. The lower the Form Handle in a clockwise direction with the right hand until the "0" is directly opposite of the 45 deg mark on the Form Handle.
Move the center of the bend to the edge of the Form Wheel Handle and rotate the tubing 180 deg before making a second 45 deg bend as shown in the example below.
After you have completed this process, your tubing should appear as in the example below.
Before any work is performed all Safety precautions must be in-place according to Flogistix policy for the unit type.
Responsibilities
Responsibilities
Management - Management is responsible for implementing, supporting, and enforcing the requirements of this procedure to their respective locations/area.
EHSS - Responsible to assist in the implementation of this procedure and to review for effectiveness.
Employees, Contractors, Vendors, ETC. - Are responsible to follow the requirements outlined in this procedure and ask for assistance
Scope
Scope
This procedure applies to all service or manufacturing employees that are required to bend stainless steel tubing and is applicable to all Flogistix employees, contractors, and temporary employees.
Hazards
Hazards
Employees should be aware of the dangers of installing stainless tubing in application that will have high pressure applied to the tubing during operation of the equipment. Employees should be aware that stainless steel tubing that is incorrectly bent or installed incorrectly could have the possibility of the tubing failing and could release high pressure gas, oil, that can be flammable and toxic. Potential for the possible hazards of gas ignition or fire, hot surfaces, hot fluids, and the potential of bodily hard. Environmental hazards from the release of used oil, production fluids that could be considered an environmental spill onto ground or soil.
Safety
Safety
All Personal Protective Equipment (PPE) for Field Mechanical duties and Manufacturing duties apply for this procedure. Flogistix EHSS Manual, Section 8, Procedure 8.3 Personal Protective Equipment (PPE)
Four Gas Monitor, which is outlined in the Flogistix EHSS Manual, Section 8, Procedure 8.3 Personal Protective Equipment (PPE) if performing duties at a field location.
This procedure applies to all units in service in the field, at a service shop, or in any storage yard.
Insure Flogistix personnel have proper safety certification or site orientation if required by the Flogistix Customer.
Insure Flogistix personnel adhere to all Customer safety practices.
Proper use of required tools.
Training
Training
All employees shall be initially trained on the following topics:
Employee Personal Protective Equipment (PPE)
Emergency and First Aid procedures
Methods and Observations that may be used to detect the presence or release of a hazardous chemicals or gas in the work place
Tools & Equipment Required
All employees performing the task of bending tubing shall be required to have the listed tools or equipment to perform job tasks:
All required PPE according to Flogistix Safety Policy
The correct size wrenches that fit the tubing connection nuts to properly seat the tubing ferrule onto the tubing in the tubing fitting
The use of open end adjustable wrenches is not recommended for the use of properly tightening the tubing nuts to seat the tubing ferrule.
Approvals:
Field Service approved by: Charles Crenshaw
Date: June 26, 2019
Engineering approved by: Aaron Baker
Date: June 26, 2019
EHSS approved by: Mike Southard
Date: 06-26-19
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