Specification

In a piping system, an elbow is a fitting that changes the direction of a pipe run. According to the angle, there are three kinds of most commonly used: 45 ° and 90 ° 180 °. In addition, according to the needs of the engineering road, there are other abnormal angle elbows such as 60 °. According to the material, there are cast iron, stainless steel, alloy steel, malleable cast iron, carbon steel, non-ferrous metals and plastics. According to the production process, there are welding elbow, stamping elbow, pushing elbow, casting elbow, etc.

The extension lines of two nozzles of 45 degree elbow intersect into an acute angle, while 90 degree elbow knows that the extension lines of two nozzles are vertical. A blunt angle is formed after connecting pipes on both sides of a 45 degree elbow, while a right angle is formed after connecting pipes on both sides of a 90 degree elbow. It is not allowed to weld two 45 degree elbows into 90 degree elbows for use. Elbows are the concentration area of stress on pipes, and most of the stress of expansion and cooling deformation are released at elbows. Weld itself is a weak link, fatigue deformation will cause cracking damage.

Specification

Standard: ANSI/ASME B16.11, GB/T14383-2008

Material: carbon steel Q235A

Size range: DN15-700

Pressure range: 3000 lb, 6000 lb, 9000 lb

Surface treatment: anti-oil; anti-painting

Technical data sheet

Process

1, Material selection and blanking, select appropriate steel plate, cut, and mark the furnace, batch number, pipe fitting specification, project name and number of raw materials clearly.

2, The elbow is pressed and welded to form, and the circumferential pressure is kept balanced during the pressing process.

3, Heat treatment: according to the heat treatment process. Surface treatment: after heat treatment, the surface oxide skin of pipe fittings shall be removed by sanding machine to make them show metallic luster.

4, Nondestructive testing of elbow: commonly used magnetic particle, ultrasonic, penetration and radiographic testing methods to detect surface defects.

5, End machining: machining groove of mechanical end face according to design confirmation drawing.

6, Appearance inspection: the elbow shall be free of cracks and other phenomena, and the surface shall be free of hard spots.

7, The inner and outer surfaces of elbows shall be smooth without damage to strength and appearance defects. No welding repair is allowed for any defect on the elbow body.

8, Dimension inspection: calibre measurement; center height measurement; wall thickness measurement; roundness measurement; hardness measurement; groove measurement; horizontal deviation measurement; oblique deviation measurement.

9, Pickling, passivation and marking.

Application

1, Socket elbow is divided into 45 ° socket elbow and 90 ° socket elbow according to the form.

2, According to the common standards, the specifications of socket elbow are dn6, DN8, dn10, DN15, DN20, DN25, DN32, Dn40, DN50, DN65, DN80 and DN100.

3, The commonly used order specification is dn15-dn50. It is divided into 3000lb, 6000lb, 9000lb or sch80, sch160 and XXS according to the pressure level.

4, Carbon steel socket welding elbow mainly includes hot push forming process and stamping forming process.

5, It is mainly applicable to petrochemical power, aerospace, military industry, fire protection, metallurgy, shipbuilding, gas, nuclear power, environmental protection and other departments and fields requiring high pressure and precise size.

Package

a. Plastic bubble bag package b.Wove bag package c.Pallet d. Customized

Delivery time

Our factory have high ability for production, the delivery time is 45days for small quantity, or if you are hurry for that, we can arrange and meet your shipping date.

Xi'an Longjoy Foreign Trade Co., Ltd. was established in 2002 and located in Xi'an Land Center, mainly engaged in the import and export of various pipe and pipe fittings. Our business scope is mainly in steel and plastic products, such as Carbon steel pipe fittings, stainless steel pipe fittings, flange, ductile iron pipe fittings, alloy pipe fittings, mar pipe fittings, HDPE pipe fittings. With the development of the business, we have accumulated rich trading experience and customer resources. Over the years, with excellent product quality and good business reputation, we have attracted many valuable customers in cooperating with us in the world.

Why Choose Us

1. Our advantage is that we can meet the needs of procurement at one time and provide a wide variety of pipes and fittings.

2. Nearly 20 years of professional trade experience to ensure that goods are delivered to you on time.

3. Stable cooperation with our partners to ensure fair price and quality of goods.

4. Choosing us means that we are your agent in China.

5. A perfect collaboration is the beginning of a long-term partnership.

Product Introduction

1. The company's main products include carbon steel pipe fittings, stainless steel pipe fittings, ductile iron pipe fittings, alloy pipe fittings, ma steel pipe fittings, flanges, etc.

2. According to the connection mode, it can be divided into butt welding pipe fittings, socket welding pipe fittings, threaded pipe fittings, etc.

3. Specific products include Elbow (long radius, short radius), Tee (equal, reducer), Reducer (concentric reducer, eccentric reducer), pipe cap, Cross Tee, Nipple, Branch pipe, Double socket collar, Piston, Joint, etc.

4. The main types of flange include WN Flange, Slip flange, socket welding flange, threaded flange, blind flange, etc.

Product Material Details

1. Carbon steel: ASTM / ASME a234 WPB, WPC.
2. Alloy steel: ASTM / ASME a234 WP 1-wp 12-wp 11-wp 22-wp 5-wp 91-wp911, 15Mo3 15CrMoV, 35crmov.
3. Stainless steel: ASTM / ASME A403 WP 304-304l-304h-304ln-304n ASTM/ASME A403 WP 316-316L-316H-316LN-316N-316Ti  ASTM/ASME  A403 WP 321-321H ASTM/ASME A403 WP 347-347H.
4. Low-temperature steel: ASTM / ASME A402 WPL3-WPL6.
5. High-performance steel: ASTM / ASME a860 WPHY 42-46-52-60-65-70.

6. Cast steel, alloy steel, stainless steel, copper, aluminum alloy, plastic, argon, PVC, PPR, etc.

7. HDPE: PE100.

Our Faith

The customers as friends, and quality as lives. We commit ourselves to mold an image like that: the responsible supplier to customers; the reliable partner to cooperators, the respectable opponent to professions, the good school to the staff.

Our markets

At present, our business covers more than 40 countries in Africa, Europe, Southeast Asia, and the Middle East. And the annual import/export volume is more than $20 million. This achievement is all due to our customers' supports, and we keep our faith and manufacture the best goods.

Our success can not be separated from the support and trust of old and new customers. We will always treat people sincerely, adhere to principles, and provide customers with the best products and services.