BRANCH CONNECTION FITTINGS GENERAL
Branch Connection fittings (also known as Olets) are fittings which provide an outlet from a larger pipe to a smaller one (or one of the same size). The main pipe onto which the branch connection is welded is usually called the Run or Header size. The pipe to which the branch connection provides a channel is usually called the Branch or Outlet size. Branch connections are in all sizes, types, bores, and classes, in a wide range of stainless steel, carbon steel, duplex steel, chrome-moly, and other alloys.
Perhaps you know, DIPTI METAL INDUSTRIES has been supplying quality branch fittings (Olets) for many years. In 2009 when DIPTI METAL INDUSTRIES pioneered the "Shape of Reinforcement" for branch connections, who would have thought it would fast become a recognized industry standard. Today, DIPTI METAL INDUSTRIES Branch Connections offer complete run pipe reinforcement while avoiding cracks, fillet welds, and sharp re-entrant corner reinforcement tapering at the sides, thus preventing abrupt changes in thickness where the fitting joins the header pipe.
DIPTI METAL INDUSTRIES fittings meeting the 100% reinforcement requirement of applicable piping codes i.e. ASME B31.1, B31.3, B31.4 and B31.8. They also meet the 2001 edition of MSS-SP-97 Standard- "Integrally Reinforced Forged Branch Outlet Fittings".
TYPES OF BRANCH CONNECTION FITTINGS
Welding Outlet is the most common of all branch connections, and is welded onto the outlet pipe. The ends are bevelled to facilitate this process, and therefore the Welding Outlet is considered a butt-weld fitting. Welding Outlet's are designed to minimize stress concentrations and provide integral reinforcement.
Socket Weld outlet utilizes the basic Welding Outlet however the branch affixes by way of a socket inside the olet. The bore matches the outlet bore, and the existence of a counter bore roughly the size of the OD of the outlet provides a socket where the pipe can sit, facilitating installation and welding. The Socket Weld outlet is considered a socket fitting, and manufactured in 3000#, 6000# and 9000# classes.
Threaded Outlet utilizes the basic Welding Outlet however the branch affixes by way of a thread just inside the top of the olet. The bore matches the outlet bore, and the existence of this threading facilitates installation, as no welding is necessary. The Threaded Outlet is considered a threaded fitting, andmanufactured in 3000# and 6000# classes.
Lateral Outlet used for 45° lateral connections, is available butt-weld to meet specific reinforcement requirements, and 3000# or 6000# classes for Socket Weld and threaded applications.
Elbow Outlet is used on 90° Long Radius Elbows (can be manufactured for Short Radius Elbows) for thermowell and instrumentation connections. Available butt-weld to meet specific reinforcement requirements, and 3000# and 6000# classes for Socket Weld and threaded applications.
Nipple Outlet is a one piece fitting for valve take-offs, drains and vents. Manufactured for Extra Strong and Double Extra Strong applications in 3.1/2in to 6.1/2in lengths. Available with male-socket weld or male threaded outlets.
Swept Outlet is a contoured, integrally reinforced, butt-weld branch connection with a low stress intensification factor for low stresses and long fatigue life. The attachment weld is easily examined by radiography, ultrasound and other standard non-destructive techniques. Manufactured to meet your specific reinforcement requirements.
SPECIFYING THE SCHEDULE OF BOTH THE RUN AND BRANCH
Generally the schedules of the run pipe and branch pipe are identical and thus specification of the equivalent schedule Weldolet assures the proper fitting being used.
EXAMPLE:
16" Standard weight x 6" Standard weight is specified as a 6" standard weight fitting.
Where the schedule of the run is greater or less than the schedule of the branch, it is essential that both schedules be specified since (a) The Welding Outlet's reinforcing characteristics are a function of the run pipe wall thickness, which in turn designates the schedule of the basic welding outlets fitting to be used;(b) The wall thickness of the outlet or branch end must match the wall thickness of the branch pipe.
EXAMPLE:
16" Extra strong x 6" Standard weight
16" Standard weight x 6" Extra strong
Special care is suggested to avoid confusing schedule 40 and standard weight as being identical (above 10" schedule 40 is heavier) and schedule 80 and extra strong (above 8" schedule 80 is heavier).
EXAMPLE:
8" Schedule 80 x 4" Schedule 80 fitting or extra strong fitting.18" Schedule 80 x 4" Schedule 80 is a considerably heavier fitting, because the reinforcement is for 18" schedule 80 pipe with a wall thickness of approximately 1".
The Welding Outlets is available in standard code designs for all combinations of run wall thicknesses up through 3½" thickness and branch wall thicknesses up through double extra strong. Designs for thicknesses greater than these can be developed on request.
DIPTI METAL INDUSTRIES supplying steel olets to in Agartala ,Agra, Agra Rampur, Ahmedabad, Aizawl, Ajmer, Aligarh, Allahabad, Alwar, Amaravati, Ambala, Ambattur, Ambernath, Amravati, Amritsar, Aurangabad, Bangalore, Bareilly, Belgaum, Bhagalpur, Bhavnagar, Bhilai, Bhiwandi, Bhopal, Bhubaneswar, Bidhannagar, Biharsharif,Bikaner, Bilaspur, Bokaro, Chandigarh, Chennai, Chittoor, Coimbatore, Cuttack, Dahod, Davanegere, Dehradun, Delhi, Dhanbad, Dharamsala, Dindigul, Diu, Durgapur, Erode, Faridabad, Fatehpur, Gandhidham, Gandhinagar, Ghaziabad, Greater Hyderabad, Greater Mumbai, Greater Warangal, Gurgaon, Guwahati, Gwalior, Haldia, Howrah , Hubballi-Dharwad, Hyderabad, Imphal, Indore, Jabalpur, Jaipur, Jalandhar, Jammu, Jamnagar, Jamshedpur, Jhansi, Jodhpur, Junagadh, Kakinada, Kalyan-Dombivali,Kanpur, Karnal , Kavaratti, Kochi, Kohima, Kolhapur, Kolkata, Kota, Lucknow, Ludhiana, Madurai, Mehsana, Mangalore, Mangaluru, Mira-Bhayandar , Moradabad, Morbi, Mumbai, Muzaffarpur, Mysore, Nagpur, Namchi, Nasik, Navi Mumbai, NDMC, Nellore, New Delhi, New Town Kolkata, Noida, Oulgaret, Pali, Panaji, Panipat, Panvel, Pasighat, Patiala, Patna, Pimpri-Chinchwad, Port Blair, Puducherry, Pune, Raipur, Rajkot, Ranchi, Raurkela Industrial Township, Rourkela, Sagar, Salem, Satna, Secunderabad, Shaharanpur, Shillong, Siliguri, Silvassa, Solapur, Srinagar, Surat, Thane, Thanjavur, Thiruvananthapuram, Thoothukudi, Thrissur, Tiruchirapalli, Tirunelveli, Tirupur, Tumkur, Udaipur, Ujjain, Ulhasnagar, Vadodara, Vapi, Varanasi, Vasai-Virar, Vellore , Vishakhapatnam.
DIPTI METAL INDUSTRIES is leading steel branch fittings supplier in Wagle Estate Thane , Navi Mumbai , Vashi, Powai , Gujarat, Pune, Marine Drive, Marine Lines , Colaba, Zaveri Bazar, Kalbadevi, Khetwadi, Kumbharwada, Byculla, Lower Parel, Parel, Dadar, Andheri, Juhu, Belapur CBD, Mahape, Khopoli, Kalyan , Dombivali, Ulhasnagar, Sion, Dharavi, Wadala.
DIPTI METAL INDUSTRIES Exports steel branch connections in Afghanistan, Albania ,Algeria, Andorra, Angola, Antigua and Barbuda, Argentina, Armenia, Aruba, Australia ,Austria, Azerbaijan, Bahamas The, Bahrain, Bangladesh, Barbados, Belarus, Belgium, Belize, Benin, Bhutan, Bolivia, Bosnia and Herzegovina, Botswana, Brazil, Brunei, Bulgaria, Burkina Faso, Burma, Burundi, Cambodia, Cameroon, Canada, Verde, Central African Republic, Chad, Chile, China, Colombia, Comoros, Congo, Democratic Republic of the, Congo, Republic of the, Costa Rica, Cote, Croatia, Cuba, Curacao, Cyprus, Czech Republic, Denmark, Djibouti, Dominica, Dominican Republic, Ecuador, Egypt, El Salvador, Equatorial Guinea, Eritrea, Estonia, Ethiopia, Fiji, Finland, France, Gabon, Gambia The Georgia, Germany, Ghana, Greece, Grenada, Guatemala, Guinea, Guinea-Bissau, Guyana, Haiti, Holy See, Honduras, Hong Kong, Hungary, Iceland, India, Indonesia, Iran, Iraq, Ireland, Israel, Italy, Jamaica, Japan, Jordan, Kazakhstan, Kenya, Kiribati, Korea, North, Korea, South, Kosovo, Kuwait, Kyrgyzstan, Laos, Latvia, Lebanon, Lesotho, Liberia, Libya, Liechtenstein, Lithuania, Luxembourg, Macau, Macedonia, Madagascar, Malawi, Malaysia, Maldives, Mali, Malta, Marshall Islands, Mauritania, Mauritius, Mexico, Micronesia, Moldova, Monaco, Mongolia, Montenegro, Morocco, Mozambique, Namibia, Nauru, Nepal, Netherlands, Netherlands Antilles, New Zealand, Nicaragua, Niger, Nigeria, North Korea, Norway, Oman, Pakistan, Palau, Palestinian Territories, Panama, Papua New Guinea, Paraguay, Peru, San Marino, Philippines, Poland, Portugal ,Qatar, Romania, Russia, Rwanda, Saint Kitts and Nevis, Saint Lucia, Saint Vincent and the Grenadines, Samoa ,Sao Tome and Principe, Saudi Arabia, Senegal, Serbia, Sierra Leone, Singapore, Sint Maarten, Slovakia, Slovenia, Solomon Islands, Somalia, South Africa, South Korea, South Sudan, Spain, Sri Lanka, Sudan, Suriname, Swaziland, Sweden, Switzerland, Syria, Taiwan, Tajikistan, Tanzania, Thailand, Timor-Leste, Togo, Tonga, Trinidad and Tobago, Tunisia, Turkey, Turkmenistan, Tuvalu, Uganda, USA, Ukraine, United Arab Emirates, United Kingdom, Uruguay, Uzbekistan, Vanuatu, Venezuela, Vietnam, Yemen, Zambia, Zimbabwe countries.
