Wenzhou Longtian Flange Pipe Fittings Co., Ltd.
American Standard Series
Japanese standard series
German standard series
Ministry of Chemical Industry Series
Pressure vessel flange
Pipe fitting series
ABOUT
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   The company focuses on the production and research and development of stainless steel flange products. It can produce flange products with special materials of high temperature resistant alloy steel and low temperature alloy steel. The high temperature resistant material products can work for a long time at a high temperature above 600 ℃ and a certain stress. Low-temperature material products can be used under extreme conditions below -196℃; representative products are PL (plate flat welding flange), SO (neck flat welding flange), WN (neck butt welding flange), IF (Integral flange), SW (socket welding flange), BL (flange cover); products are widely used in aviation, aerospace, petroleum, chemical, ship and other industries, and the production standards are strictly in accordance with GB (national standard), AISI ( American Iron and Steel Institute), ASTM (American Society for Testing and Materials), API (American Petroleum Institute), JIS (Japanese Industrial Standards Institute), BS (British Standard) production and inspection to control and ensure product quality.

 
American Standard Series
Japanese standard series
German standard series
Ministry of Chemical Industry Standards
Pressure vessel flange
Other flanges
Butt welding pipe fittings
ASME B16.5(SO)Flat welding flange with neck
Nominal diameter: NPS1/2"~24"
Nominal pressure: Class150~Class1500
ASME/ANSI B16.5(WN) butt welding flange with neck
Nominal diameter: NPS1/2"~24"
Nominal pressure: Class150~Class1500
ASME B16.5(TH) threaded flange
Nominal diameter: NPS1/2"~24"
Nominal pressure: Class150~Class1500
ASME B16.5 (LJ) loose flange
Nominal diameter: NPS1/2"~24"
Nominal pressure: Class150~Class1500
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JIS B2220 (SOP) plate flat welding flange
Nominal size: 15A~1500A
Nominal pressure: 5K~10K
JIS B2220 (SW) socket welded steel pipe flange
Nominal size: 10A~80A
Nominal pressure: 5K~20K
JIS B2220 (SOH) neck flange
Nominal size: 450A~1500A
Nominal pressure: 5K~20K
JIS B2220 (WN) butt welding steel pipe flange
Nominal size: 10A~1500A
Nominal pressure: 5K~60K
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DIN2630 ~ 2637 (WN) butt welding flange with neck
Nominal diameter: DN10~DN2000
Nominal pressure: PN10~PN160
DIN2574 ~ 2579 (PL) plate flat welding flange
Nominal diameter: DN10~DN2000
Nominal pressure: PN2.5~PN40
DIN neck flat welding flange
Nominal diameter: DN15~DN600
Nominal pressure: PN16~PN260
DIN2525 ~ 2560(BL)法兰盖
Nominal diameter: DN10~DN2000
Nominal pressure: PN2.5~PN100
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HG/T20592(PL) plate flat welding flange
Nominal pressure: PN2.5~PN40
Nominal trade: DN10~DN2000
HG/T20592(SO) flat welding flange with neck
Nominal pressure: PN6~PN40
Nominal trade: DN10~DN600
HG/T20592 (WN) butt welding with neck
Nominal pressure: PN10~PN160
Nominal trade: DN10~DN2000
HG/T20592 (IF integral flange)
Nominal pressure: PN6~PN160
Nominal trade: DN10~DN2000
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NB/T47023-2012 (Long neck butt welding flange)
Nominal diameter: DN300~DN2600
Nominal pressure: PN0.6~PN6.4
NB/T47023-2012 (Long neck butt welding flange)
Nominal diameter: DN300~DN2600
Nominal pressure: PN0.6~PN6.4
NB/T47021-2012 (Type A flat welding)
Nominal diameter: DN300~DN2000
Nominal pressure: PN0.25~PN1.6
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PRODUCTS
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QUALITY ASSURANCE

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Reassuring customers, satisfying customers

The company pursues manufacturing accuracy and refinement,

and constantly improves its own lean manufacturing methods.

Including every component, carefully built in strict accordance with standards, Ensure the high quality of products.


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As the flange is cast, the liquid metal uses a filling mold while rotating and solidifies. Flange casting has the following characteristics: Liquid metal can form a freely selected hollow cylindrical
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As we all know, a flange is a component that connects between the shaft and the shaft, and is used to connect the two ends of the pipeline. Therefore, the method of connecting the pipeline with a flan
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Stainless steel flange (flange is also called flange or flange. It is the part that connects the pipe to the pipe. Connected to the pipe end.
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Specification: 1/2 "~80" (DN10-DN5000) Pressure rating: 0.25Mpa ~250Mpa (150Lb ~2500Lb) Commonly used standard: National standard: GB9112-88 (GB9113•1-88~GB9123•36-88)
NEWS
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CONTACT
MP:18605876287
E-Mail:690822354@qq.com
ADD:High-tech Industrial Park, Longwan District, Wenzhou City, Zhejiang Province
WEB:http://www.ltflgj.com

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