Longtaidi is a leading manufacturer of induction bends that uses induction bending technology to replace elbows and fittings. Induction bending involves applying controlled heat to pipe to form the desired shape. This provides benefits like eliminating welds, maintaining uniform wall thickness for strength, and often being less expensive than traditional components. Longtaidi has advanced equipment to closely control temperatures during forming for consistent quality. Materials bent include carbon steels, stainless steels, and corrosion-resistant alloys in sizes from 2 to 60 inches in diameter.

1. Mechanical Lined Pipe
Pipe
Pipe Fittings (Large Diameter)
Clad Pipes and Clad Pipe Fittings
Induction Pipe Bends
FROM STRAIGHT PIPE TO PIPE BEND
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Specialization I Quality I HonestySpecialization I Quality I Honesty Cangzhou Longtaidi Pipe Technology Co., LtdCangzhou Longtaidi Pipe Technology Co., Ltd
Cangzhou Longtaidi
Pipe Technology Co., Ltd.
Headquarter:
Factory: No.33 Huanghe East Road,
Economic Development Zone, Cangzhou, China
Telephone: +86-317-2035788 • Fax+86-317-2035788
Mail:int.sales@longtaidi.com
www.longtaidi.com
Beijing Office:
RM1703, NO.3 Building, 317 Datun Road,
Chaoyang District Beijing, China
Telephone: +86-10-84874883 • Fax+86-10-84874255
Mail: int.sales@longtaidi.com
Dubai Branch:
Longtic International Trading FZE
Add: No.1910 Icon Tower Two,
Jumeirah Lakes Tower, Dubai. U.A.E
Telephone: 00971-4-3684035 • Mobile: 00971-56-1494998
P.O. Box No.:262855 • Mail: sales@longtic.com
USA Branch:
Lontide America LLC
PO BOX 941785 Houston,TX 77094, USA
Telephone:1-281-809-5226
Mail: info@lontideamerica.comIranian Office:
6th Floor, No.6 Taban Sharghi Alley, Alborz
St.,(P.C.:1918813753) Mirdamad Ave. (Under the Bridge),
Tehran, Iran
Telephone: 00989120149415
Mail: iran@longtaidi.com

2. Use of induction bending is especially beneficial where laminar flow is desired. This technology can replace
most elbows and fittings used in traditional designs.
APPLICATION
Flow Improvement: The manufacturing process adds no welds to the material, eliminating additional
resistance found in traditional elbows. Proper material, diameter and radius selection further reducing
resistance and achieving smoother flows and reducing wear within the induction bend products.
Strength: Induction Bends are stronger than traditional elbows and fittings. Wall thicknesses are uniform.
Cost Effectiveness: Straight material processed with our technology is almost always less expensive and
available faster than traditional components. The durability of our products will allow you to maintain less
inventory of fittings and elbows.
BENEFITS
Longtaidi is one of the world's leading manufacturer of induction bends. Induction bending is simply the application of
heat to conventional pipe or tubing and forming the exact shape required. We can produce exactly the piece needed
using the customers material of choice, including bi-metal corrosion resistant alloys. Large diameter and heavy wall
production is also available. This process is performed per ISO 15590-1 and ASME B16.49.
INTRODUCTION
Technology: We utilize the most advanced equipment available. Temperatures are closely controlled,
resulting in finish consistency providing consistent strength and hardness. We are able to maintain the
geometric plane within 3mm. We guarantee back arc thinning superior to the competition.
Environmental: Our processes do not require the use of oils or lubricants in the forming process. In
addition, all of our cooling water is reclaimed and reused. We consider and mitigate the environmental
impact of all of our manufacturing processes.
PRODUCTION LINE/QUALITY CONTROL
Material: API 5L, A106, A333, A335, A312, bi-metal alloys.
MATERIALS AND SIZES
Sizes Tolerance
OD: 2" to 60" -1 ~+2 mm
Bend radius: R≧3D
WT: 3 to 60 mm
WT thinning: R=3D ≤13%
R=4D ≤11%
R=5D ≤9%
R≧6D ≤8%
Bend angle: 0~180 deg ±0.5 deg
Forming velocity: ±2.5mm per min
Forming temperature: ±10°C from the qualification temp.
Bend ovality: ≤2.5%
Tangent ovality: ≤0.8%
ID welding ends NPS≤36" ±2.5mm
ID welding ends NPS＞36" ±3 mm
R = Radius • D = Diameter • OD = Outside Diameter • ID = Inside Diameter