Nohub fitting restraint solutions 117 series product line expands numerous con. Many piping failures can be explained by the concept of hydraulic jump. Slide the flange onto the pipe with the gasket cavity facing the end of the pipe. Hub for single hub type pipe or flexible coupling for nohub or hubless type pipe. Holdrite nohub fitting restraints prevents separation of no hub pipe fittings at changes of direction or straight inline joints. This specification covers hubless cast iron pipe and fittings used in sanitary drain, waste, and vent dwv, sewer, and storm drainage applications. Seismic restraint systems guidelines cooper industries. Pipe restraints and adapter flanges norwood waterworks. Nohub couplings revolutionized cast iron drainage pipe installations from a hazardous, tedious, skilled craftsman trade, to a simpler, quicker, less tools needed, safer occupation. More detailed information about coupling dimensions, installation practices and restraints may be found in the cast iron soil pipe industry publication cispi310. Hanger rods continuously threaded or threaded ends only in.
This section contains nohub fitting restraints, which are ideal for restraining hubless cast iron soil pipe joints against separation during high thrust conditions. This nohub fitting restraint is made to prevent separation of nohub pipe fittings at changes of direction or straight inline joints. We manufacture a full line of service and extra heavy cast iron soil pipe and fittings from 2 15, and double hub pipe from 2 6. Pipe restraints and adapter flanges emco waterworks. If the pipe is greater than four inches in diameter, use the restraints. These engineered restraints protect against water blowouts in rain leader systems, plus support joints from the separation of both longitudinal movements and. Pipe restraint iron restraint no hub fitting restraints. No hub couplings revolutionized cast iron drainage pipe installations from a hazardous, tedious, skilled craftsman trade, to a simpler, quicker, less tools needed, safer occupation. The institute is dedicated to aiding and improving the plumbing industry.
These suggestions are based upon accepted industry standards and practices. C905, c906, c909 and astm d2241 pvc pipe and shall be achieved by a series of individually activated, contoured wedges gripping the outside wall of the pvc pipe. Because all pipes and fittings on the drain, waste and vent dwv systems. We hope we get the opportunity to do business with you soon. No hub pipe and fittings service pipe and fittings extra heavy pipe and fittings plugs. This system is intended for use in nonpressure applications. To carry load to ensure that material is not stressed beyond a safe limit holdup of liquid can occurred due to pipe sagging allow draining to permit thermal expansion to withstand and dampen vibrational forces applied to the piping. The principle of set screws for pipe restraint is not a new idea developed. Cast iron soil pipe and fittings engineering manual, washington, d. These no hub fitting restraints provide the ideal professional solution for no hub dwv joints. Pipe supports and restraints pipe fluid conveyance. Nabh policy patient under restraints nabh standard. The cast iron soil pipe institute cispi was organized in 1949 by the leading american manufacturers of cast iron soil pipe and fittings.
Guide for pvc pressure fittings 11 pvc pressure fittings the selection of the appropriate method for providing thrust restraint must be based on the consideration of present and future conditions. This is a guideline for connecting hubless pipe and fittings with tyler. Its our pleasure to serve the water and wastewater industry. Brace hubless cast iron pipe and fittings 5inch and larger with holdrite no hub pipe restraints or approved equivalent. For pipe sizes greater than 4 inches 102 mm, restraints shall be provided for drain pipes at all changes in direction and at all changes in diameter greater than two pipe sizes. Holdrite nohub fitting restraints prevents separation of nohub pipe fittings at changes of direction or straight inline joints. Only the joints falling within the restrained length adjacent to the fitting or valve must be restrained. Understanding seismic and wind restraints ce center. To carry load to ensure that material is not stressed beyond a safe limit holdup of liquid can occurred due to pipe sagging allow draining to permit thermal expansion to withstand and dampen vibrational forces applied to the piping piping components. They are designed to restrain pipe and fittings against separation against thrust forces up to 50 head of water. The longitudinal restraints on the two end joints of. Since 3 inch and 14 inch through 24 inch restraints are only used with one pipe diameter, no spacers are used. Holdrite nohub fitting restraint kit 1176k ferguson.
Pipe restraints and adapter flanges section u 042016 web revision 05092016. Cpf8 hubless cast iron dwvstorm pipe w thrust restraint. Heavyduty no hub pipe couplings should be used for seismic applications, where no hub pipes are joined together with a flexible coupling that slips over the o. Chapter 2 installation of cast iron soil pipe and fittings. Nohub fitting restraint solutions building in california. Uniflange offers builtin end restraint no tie rods or other forms. Holdrite no hub fitting restraints prevents separation of no hub pipe fittings at changes of direction or straight inline joints. These nohub fitting restraints provide the ideal professional solution for no hub dwv joints. Pipe continues to lead the industry through the principles the company was established on over 100 years ago. Heavyduty nohub pipe couplings should be used for seismic applications, where nohub pipes are joined together with a flexible coupling that slips over the o.
Without nohub fitting restraints in place, the system buckled. Nohub fitting restraints 20140312 supply house times. Products include 42 no hub fitting reducer restraints, ranging in wye sizes from 10 8x6. These products are ideal for restraining hubless castiron soil pipe joints against separation during high thrust conditions, as required by nohub pipe. Nabh policy patient under restraints nabh standard reference. Specification for hubless cast iron soil pipe and fittings for sanitary and storm drain, waste, and vent application scope. Sharkbite pexpipe a crosslinked polyethylene pex tubing that does not corrode, pit or scale, and provides highest chlorine and uv resistance. The prediction of future activities around the bends that might jeopardize the water main, such as. Reliable built with top materials such as stainless steel, black iron, or galvanized components and engineered to meet plumbing codes, pipe manufacturers installation instructions, and the cispi installation handbook. Cast iron pipe and fitting dimensions table of contents page. These engineered restraints protect against water blowouts in rain leader systems, plus support joints from the separation of both longitudinal movements and diagonal misalignment. Holdrite nohub fitting restraints cad details the holdrite cad details below are complete drawings that can easily be downloaded, customized for your residential or commercial project, and included in your cad library for future use.
For a downloadable version of the catalog, click below. For pvc, ductile iron and steel pipe i s o 9 0 0 1. Seismic restraints may be omitted from the following installations. Do not use this item for any installation or repair of potable water applications. Guide for pvc pressure fittings pvc pipe association. The mechanical joint restraint shall have the same pressure rating as the pipe with a 2. Check to see if the spacers under the screws are in place. Pipe penetrations through structural elements such as beams, walls, and slabs must be coordinated with structural engineer. This no hub fitting restraint is made to prevent separation of no hub pipe fittings at changes of direction or straight inline joints. Where possible, it is recommended to use full lengths of pipe adjacent to valves and fittings to avoid unnecessary expense. Riser joint brace assembly for no hub pipe section 3 single pipe hanger rigid brace spacing charts spacing charts for concrete attachments.
The hp lok restrained joint has a working pressure equivalent to the working pressure rating of the parent pipe with a maximum working pressure rating of 350 psi. A superduty stainless steel coupling for joining nohub cast iron soil pipe and fittings. All hubless pipes and fittings should be properly restrained if test pressure exceeds. The first technique will apply to both hub type pipe and nohub pipe. The grip of the wedges shall increase as the hydrostatic pressure increases. Cast iron soilpipefit handbook cast iron soil pipe institute. Without no hub fitting restraints in place, the system buckled. We also manufacture a full line of nohub hubless pipe and fittings, 1. Slide the lubricated gasket over the pipe end with the tapered end facing the gasket cavity in the flange.
Before no hub couplings were invented, hub and spigot cast iron piping would be connected into fittings with hubs or bells by using lead, oakum, melting pots. If not, the restraint can slip under pressure, resulting in a sudden impact, and cause the pipe to burst. The tables below show examples of restrained lengths for various commonly used. All no hub cast iron fittings domestic no hub cast iron combo wye and 45 elbow there is a minimum advertised price map allowed by the manufacturer on this product. A superduty stainless steel coupling for joining no hub cast iron soil pipe and fittings. Any component of piece of equipment that is exposed in any way to the effects of wind should be restrained. This section contains no hub fitting restraints, which are ideal for restraining hubless cast iron soil pipe joints against separation during high thrust conditions. Holdrite no hub fitting restraints ideal solution for restraining no hub cast iron soil pipes against separation during high thrust conditions. Vertical piping attachment vertical piping shall be secured at sufficiently close intervals to keep the pipe in alignment and carry the weight of the pipe and contents. View our line of nohub wyes and san tee fitting restraints.
This dimensional catalog accurately reflects our product line at the time the catalog was printed. These products are ideal for restraining hubless castiron soil pipe joints against separation during high thrust conditions, as required by nohub pipe manufacturers and cispi standards. Seismic braces may be omitted when the top of the pipe is suspended 12 or less from the supporting structure member and the pipe is suspended by an individual hanger. Through the preparation and distribution of technical reports, we seek to advance interest in the manufacture, use and distribution. Joint restraint products stargrip series 3000 for ductile iron pipe the stargrip mechanical joint restraint system is a unique product with a proven design that provides an exceptional restraining system for mechanical joint fittings awwa c153 or c110, valves, fire hydrants and all classes of ductile iron pipe. View our line of no hub wyes and san tee fitting restraints. No hub 10 bell 9 spigot 9 dismantling joint 6 flanged 5 pvc 4 plain end 3 ductile iron 1 hex 1. No hub fittings no hub cast iron fittings cast iron no. Holdrite nohub fitting restraints ideal solution for restraining nohub cast iron soil pipes against separation during high thrust conditions. If vertical piping is to stand free of any support or if no structural element is available for support and stability during construction, secure the piping in its proper position by means of adequate stakes or braces fastened to the pipe. Before nohub couplings were invented, hub and spigot cast iron piping would be connected into fittings with hubs or bells by using lead, oakum, melting pots.
We manufacture a full line of service and extra heavy cast iron soil pipe and fittings from 2 15, and doublehub pipe from 2 6. Hp lok restrained joint pipe and fittings provide flexible pushon joints for 30 64 pipe sizes. Nabhcoppolicies and procedures guide patients under restraints ver. It may be used when the run consists of more than two joints of pipe, and involves longitudinally trapping one joint of pipe between two others, see figure s104 below. Braces, blocks, rodding and other suitable methods as specified by the coupling manufacturer shall be utilized. An unrestrained, 12inch rainwater leader separated, and a double offset fell through the ceiling in the fifth floor stairwell and flooded the building. Products include 42 nohub fitting reducer restraints, ranging in wye sizes from 10 8x6.