A pipe fastener is a device that mechanically joins or affixes two or more pipes together. Pipe fasteners cover both high tensile and mild steel bolts, clamps, nuts, screws, washers, studs, pins etc. All types of fasteners are used for both industrial and residential pipe fittings. Pipe fasteners are used in almost all types of industries. They are made of various materials and are available in various shapes, sizes and designs.
Ordering Information:
Proper care should be taken to see that the various types of pipe fasteners like screws, bolts, studs, clamps and nuts fit well with the pipes of various sizes.
As most pipe fasteners are cast of metal, the quality and finish of the metal is very important.
The pipe fasteners should be well polished or coated so that they prevent rusting when fixed on pipelines.
The color of the pipe fastener should also complement the color of the pipe in which it is to be fitted.
Thus, the factors that are to be considered are as follows:
Type of fastener
Size of the fastener
Size of the pipes
Materials
Thickness
Easy installation
Corrosion resistant
Good Finish
Durability
Good clasping facility etc.
Types of Pipe Fasteners Anchor Fasteners Anchor fasteners comprise screws, screw assemblies, and weld studs with variety of thread and point designs. These fasteners are used in all light and medium duty fixing in plumbing and piping applications. Anchors are thrust and momentum control devices. Piping and fitting joints including mechanical joints are protected from separation forces with the use of thrust and momentum control devices. Uses of anchor fasteners:
Anchor fasteners used in pipe fittings are required at all changes of direction, changes of diameter and dead ends.
They are installed to allow for maintenance of strainers, water meters, back-flow prevention devices, instrumentation and other ancillary devices in pipe fittings.
They have simple and easy to apply installation.
Bolts
Bolts are fastening device ideal for fastening pipes and tubes. Bolts are used as threaded fastener, with a head, designed to be used with a nut. Bolts are a sensible and easy way of securing piping, tubes and hoses in all industrial applications. They are designed to be used for mounting of pipes to the walls or fastening piping components. Bolts are constructed using various materials and available in various sizes and finishes. Bolts used in pipe fittings offer many variations of eye-bolts, lifting eyes and u-bolts.
Types of Bolts:
Carriage bolts: Domed top with square under head
Anchor bolts: Extended connections with handle
Flange bolts: Ridge around the bolt head
Hex tap bolts: Trimmed hex head with no flange
Hex bolts: Hex head of various materials
Lag bolts: Screw like pointed end.
Metric bolts: Available in Hex/Flange/ Standard type
Machine bolts: Fine or coarse threads
Shoulder bolts: Allow slide or pivot
Square neck bolts: Square or domed top with square under head
Eye Bolt
Eye bolts are special purpose bolts which are threaded with a loop or eye at one end. These type of bolts are used where external tension loads are to be applied. The eye of the bolt is used to anchor a cable, chain or rope . Eye bolts are used in different types of applications and they can pivot or swivel. They are available in various sizes and are made of various materials. They are provided either plain finish or hot dip galvanized. They are used in wide number of applications, including pipe fittings
Ordering Information:
Maximum load capacity: The maximum load which an eyebolt can handle.
Shank length: Shank length equals the thread length, for fully-threaded eyebolts.
Threaded length: Thread lengths for eyebolts are measured in English units like in inches (in) or metric units such as millimeters (mm).
Eye inside diameter (ID)
Eye thickness or Eye section diameter
Total weight
Material
Types of Eye Bolts: There are four types of eyebolts. They are as follows:
Forged eyebolts: These eyebolts are forged instead of formed. They are one-piece fasteners offering higher load ratings.
Shoulder eyebolts: These eyebolts have a shoulder under the eye and the shoulder is installed flush with the mounting surface.
Thimble eyebolts: These eyebolts are designed with an opening that acts as a thimble for rope or wire to minimize wear.
Pivoting eyebolts: These eyebolts are designed in such a way to pivot 180°.
Nuts
Nuts are very useful to attach machine thread fasteners. Different types of nuts in various sizes and materials are available. Nuts are widely used as pipe fasteners. In-fact no bolts can be fixed to a pipe without the use of nuts. Bolts and nuts are used in combination.
Types of nuts:
Hex Nuts: Also known as finished full, these nuts are used for fastening to a bolt while joining materials together mechanically.
Hex machine screw nuts: These nuts are used with smaller machine screw sizes under ¼ inch, and are used to fasten a bolt mechanically.
Hex lock nuts nylon insert: These nuts help prevent loosening from vibration due to the presence of the nylon material located at the top.
Hex jam nuts: Another type of a hex nut (thinner version) in sizes ¼ inch and above.
Hex jam nylon lock nuts: These nuts are a thinner version of hex lock nuts with nylon insert.
Cap nuts: These nuts have a finished top.
Square nuts: Square nuts, in the shape of square, were mostly replaced by hex nuts.
Wing nuts: These nuts are turned by hand.
Acorn Nuts: These nuts have a high crown used for appearance.
Prevailing torque lock nuts: These are metal lock nuts which are non-reverseable and are used in high temperature applications.
Hex Nuts: Also known as finished full, these nuts are used for fastening to a bolt while joining materials together mechanically.
Hex machine screw nuts: These nuts are used with smaller machine screw sizes under ¼ inch, and are used to fasten a bolt mechanically.
Coupling nuts: These nuts are long nuts to connect pieces of male threaded fasteners or threaded rods.
Pipe Clamps
Pipe clamps usually have one fixed pad, and one adjustable pad. Pipe clamps are constructed using various materials and are available in several configurations with a variety of finishes. Metallic pipe clamps have high impact resistance and various finishes like a brilliant, glossy finish, heat-resistant coatings and epoxy coatings or plain look or hot-dip galvanized or painted.
How to measure pipe clamps? Take the measurements of the following: •Diameter •Outside diameter of pipe •Cap nut diameter •Load ability
Features of Pipe Clamps:
Common features of pipe clamps are as follows: •Simple to operate •Easy to install •Adjustable in small range •Good appearance •Temperature range is dependent on the clamp lining being used. •All pipe clamps are designed to have a very high impact resistance. •Make for quick, easy pipe installation and layout. •Shock-absorption •Vibration dampening •Noise reducing property •Heavy torque •Usually used for large diameter pipes etc.
Mounting Guidelines of pipe clamps:
•The clamp should be mounted directly after the threaded connection or coupling of the piping which in turn protects the connection from vibrations. •Bends in the line should be clamped on both sides of the pipe bend. •The pipe line should be clamped directly before and after any in-line valves. •Proper Torquing of the clamp bolts is very essential.
Uses of pipe clamps: Some uses of pipe clamps are as follows: •Used for fastening and fixing various pipelines whether in construction or industries or buildings etc. •Provide fast, safe, economic service and installation in piping system. •Pipe clamps are designed for a wide range of fastening applications. •These clamps are ideal for suspension of cold or hot pipe lines with heavy load having little or no insulation. •They are also used for high and even tightening force around the pipe, minimizes leakage. •The pipe clamps absorb shock, dampen vibration, and reduce noise in plumbing systems. •They can be used in high temperature applications.
Applications of pipe clamps: Pipe clamps are used in general industrial pipe construction, in all areas of residential, industrial, mobile and marine hydraulics, the field of press technology, instrumentation and control technology, and many other application fields.
Studs
Studs are type of mechanical fasteners used in fastening various products, including pipes used in different applications. These type of fasteners are threaded on one or both ends. Studs are headless bolts, threaded , sometimes with different threads. One end of the stud is secured to an object while the other end is used typically with a nut. They are available in both Metric and English threads. Stud Fasteners are available in all forms to suit any application.
Types of studs: •Gland or tap-end stud: It has an interference fit at one end and a free-running thread at the other. •Double-end stud: It has free-running threads at both ends. •Three-bolt stud: Used in high-temperature/pressure applications. •Standard stud: Used for general-purpose applications.
Advantages of studs: •Studs help in eliminating deviations from perfect squareness in an assembly. •The basic advantage of using a stud rather than a bolt or screw is the ability of a nut to "float" and adjust on the nut end threads. •The thicker the cover plate, or the longer the tapped hole, the more important the stud becomes. •In assembling and reassembling heavy parts , for example, turbine casings and cylinder heads, studs can act as pilots. •In the automatic assembly of small, lightweight units, studs help in reducing assembly costs. They permit quick and easy "stack up" of gaskets or other different parts of a joint or two different pipes. •Studs also help in reducing the need for the large hole clearance and close hole alignment which are usually required by a cap screw or bolt. •Studs with an interference-fit thread or proprietary-lock thread on the tap or pipe end gives a positive lock against turning and loosening. •Studs also provide sealant to prevent leakage of fluids through holes tapped in porous materials.