API 6A Weld Neck Flanges are pipe flanges attach by welding the pipes to the neck of the flanges. This transfers stress from the flange to the pipe instead. It also reduces the stress concentration from the base of the hub. Welding neck flanges remove stress concentration and allow full working pressure and they are often used for high pressure applications. The inside diameter of the flange is designed to match the pipe’s inside diameter. Weld Neck Pipe Flanges are typically provided with a raised face, flat face, or RTJ facing.
Characteristics and features
Robust in construction.
Longer functional life.
Corrosion resistant.
Specifications and parameters
| Size | 1-13/16″ – 26-3/4″ |
| Working Pressure | 2000psi～20000psi |
| Standard Material | AISI 4130(forged) / SUS316/Inconel 625 |
| Face Type | RTJ, FF, RF |
| Connection | Bolted or Studded |
| Standards | API 6A, NACE MR0175, ISO 9001, ISO14001, ANSI |
| Temp Class | L·U (-46℃~ 121℃) |
| Material Grade | BB, CC, DD, EE, FF |
| Product Specification Level | PSL1~4 |
| Performance Requirement | PR1~2 |
Our partners specialize in flanges including the standards - ANSI; DIN; BS; UNI; JIS; SABS1000/3, also the custom design. It owns forging and casting factory which is well-equipped, and has a severe system for the quality control, which covers every process of the manufacturing ( raw material inspection, cutting, heating, gorging, heat treatment, machining, drilling, marking, washing, final inspection, packing, delivery). We can provide the flanges(Forged Flange,Carbon Steel Flange, Weld Neck Flange, Slip on Flange, Blind Flange , Plate Flange, Threaded Flange, Non-Standard Flange, Socket Weld Flange) with the DN15mm-DN1000mm in the professional level and our main products include PL,SO,WN,BLD.in standards - ANSI; DIN; BS: UNI; JIS; SABS1000/3. Furthermore, we do custom design as well.
Group Strength Advantages:
With registered capital RMB 84.76 million, covering 220,000 square meters, 76 workshops, 1058 Staffs, 950 sets of cold and heat machining equipment, 50 sets of numerically controlled equipment, ZYZJ O&G Group has consecutively established the strategic partnership with SINOPEC, CNPC, Zhongyuan Oil Field and Shengli Oil Field, and leveraged its technical and manufacturing advantages to provide satisfactory products and solution services to customers at home and abroad.
All products are manufactured under ISO9001, ISO14001,and comply with the requirements of API spec (acquired in 1999, including API 4F、5CT、7K、8C、11AX、11B、11E）
With professional teams experienced in the maintenance of drilling machinery,TDS,SCR equipment, we can undertake Pumping Unit oil well on-site management services.
Long-term supply accessories of Drilling Rigs, workover rigs, Mud Pump and beam pumping unit, and distribute drill pipe, drill collar, casing, tubing, special drill pipe sub etc.
We are major at Cementing and Fracturing Equipment, Gate Valve and wellhead Christmas Tree,Plunger Pumps and Mud Pumps, Flow line Products, Solid Control Equipment,Drilling Rigs and Work over Rigs Matching Equipment etc.
High quality & Steady quantity & Most competitive price will be sent for you.
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