About Us
SHUANGNENG - About Us

Our Strength


Our products are widely used in engineering industries such as pharmaceuticals, petroleum, chemicals, food, metallurgy, construction, and electricity. After years of market expansion, we have also gained recognition and support from a large number of users. We have currently supplied products to many large-scale enterprise projects and have become the preferred flange brand for many cooperative projects. Shuangneng Flange is committed to becoming a high-quality integrated service provider for stainless steel flanges.

  • Pharmaceuticals

  • Petroleum

  • Chemicals

  • Food

  • Metallurgy

  • Construction

  • Electricity

  • More


Production Equipment

Large CNC vertical lathes, CNC lathes, CNC high-speed drilling machines, gantry machining centers and a variety of advanced supporting inspection and testing equipment



FAQ

Q: Can I transfer the money to you then you pay to other supplier?

A: Yes

Q: Can I delivery the goods from other supplier to your factory? Then load together?

A: Yes

Q: Can you send your goods to my warehouse in guangzhou or shanghai?

A: Yes

Q: Can I only buy some spare parts from you?

A: Yes, minimum order is one piece

Q: Which certificate do you have for your equipment?

A: CE, ISO9001, TS, type test license

Q: How many staffs do you have in your factory?

A: About 50 people

Q: How many years have your company made this kind of products?

A: About 20 years

Q: Can you can design the products according to our size?

A: Yes

Q: How far is your factory from the airport?

A: About 20 minutes

Q: Where is your factory located?

A: No. 4516, Binhai 3rd Road 8, Xinghai Street, Longwan District, Wenzhou City, Zhejiang Province, China

Q: If OEM is acceptable?

A: Yes

Q: Do you provide sample? Free or charge?

A: Samples available for a fee

Q: What is your term of payment?

A: All payments must be settled before shipment

Q: What is your MOQ?

A: 1 piece

Q: Are you a trading company or a manufacturer?

A: Manufacturer

Q: How long is your delivery time?

A: According to the actual order quantity

Q: What is a flange used for?

A: The main use of flange is to connect pumps, pipes, valves, and other equipment to make a pipework system. Usually, flanges are threaded or welded, and you can connect two flanges by bolting them with gaskets and providing a seal that gives easy access to the piping system.

Q: What is a male/female flange?

A: the male flange has a face area that extends beyond the normal flange face; the female flange has a depression machined into its face that matches the connecting flange.

Q: What is a Weld Neck(WN) RF flange?

A: Weld neck flange RF is the most commonly used flange type which has safety and leak-proof connection. It is largely used in various industrial pipe system such as oil and gas, chemical, paper processing, power generation and sea water equipment.

Q: What is a Slip-on(SO) flange?

A: Slip on flange,as the meaning of name,is a flange slipping on the pipe or fitting when connection. The pipe should be insert the flange inner bore,and leave a bit distance from the face of the flange to make sure it will not effect the sealing of two flanges.

Q: What is a Blind(BL) flange?

A: BL flanges are mainly used for pressure testing the flow of liquid or gas through a pipe or vessel.

Q: What is a Socket Weld(SW) flange?

A: SW Flanges (Socket Weld Flange) contain a shoulder on the inside of the flange that act as a guide to set the depth at which the pipe is welded to the flange.

Q: What equipment do you have in your factory?

A: Vertical CNC lathe, CNC lathe, CNC gantry drilling and milling processing center, ultrasonic cleaning machine, etc.

Q: What's the maximum diameter you can make?

A: Maximum diameter up to 6m

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