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Spectacle Blind Flange

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Spectacle Blind Flange

Flanges are also called flange flanges or flanges. Flange is a part that connects between shaft and shaft and is used for connection between pipe ends; it is also useful for flanges on the inlet and outlet of equipment for connection between two equipment, such as reducer flange.
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Flanges are also called flange flanges or flanges. Flange is a part that connects between shaft and shaft and is used for connection between pipe ends; it is also useful for flanges on the inlet and outlet of equipment for connection between two equipment, such as reducer flange. Let's follow the editor of Spectacle Blind Flange to take a look at its welding process!
1. Preparation before welding
1. Check and debug the equipment to ensure that the equipment is operating normally.
2. To prepare φ4.0J402 welding rod, it is recommended to dry it at 300℃-350℃ for one hour.
Second, the welding process
1. Assembly Assemble the cone and the large flange according to the drawing requirements, and then divide the large flange into 8 equal parts.
2. Welding Because the flange is thicker and the groove is larger, segmented symmetrical and multilayer welding is adopted.
3. Weld quality
The weld strength is required to reach at least the strength of the base metal. The surface of the welding seam is flat and smooth, and there are no defects such as burn through, pores, weld leakage, slag inclusion, undercut, and insufficient weld. The remaining height is less than 2mm.

 

Product

WN Flange; SO Flange; PL Flange; BL Flange; Spectacle Blind Flange

Technology

Forging

Size

1/2”-120”; DN15-DN3000

Pressure Class

150#;300#;600#;900#;2000#;3000#;6000#;9000#

Material

ASTM A105N; A182Gr.F304/L; F316/L; A350LF2; A694F42 to F70;WP5;
WP9;WP11;WP22;NACE MR-0175; Other Grade available on Request

Standard

ASME B16.5; HG20592;DIN2527、2573、2627-2638、2673、2552、2653、2655、2656、2641、2642、2565-2569; GOST12820; JIS B2220

Coating

Anti corrosive paint; Galvanized (Hot Dipped Electro-Plating) etc.

Inspection

Chemical Elements; Mechanical Property; Metallographic Test,; HIC /SSC,; Heat Treatment,; Ultrasonic Test; Penetration Test; Magnetic Powder Test; X-Ray Test; Hydraulic Pressure Test; Blasting Experiment; we can make them according to your request.

Application

Water Disposal; Electric Power; Chemical Engineering; Ship Building;Nuclear Energy; Garbage Disposal; Natural Gas; Petroleum Oil.

Note

Our company can produce customized products according to customer requirements

 

Keyword:
Spectacle Blind Flange
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Tel: +86 157 2731 7311
Tel: +86 157 2731 7311
E-mail: sales@whsteelfittings.com

Factory Add:Zhenggang Industrial Park, Yanshan County, Cangzhou City Hebei Province, China.

tel
fax
e-mail
Office Add

Tel: +86 157 2731 7311
Tel: +86 157 2731 7311
E-mail: 
sales@whsteelfittings.com

Office Add:No.8013 FuHuaHongYan Building,HongYan South road,Chaoyang District ,Beijing ,P.R.CHINA

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