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5.5 inch concrete pump pipe weld-on collar flange
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5.5 inch concrete pump pipe weld-on collar flange

Our main products include various types of roll forming machines, pipe processing machines, wire drawing machines, lathes and other related machinery.
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Product Introduction

A 5.5 inch concrete pump pipe weld-on collar flange is a key component in a concrete pumping system.  Here is an elaborate account:

Basic Information

Size Specification：A 5.5-inch concrete pump pipe weld-on collar flange typically corresponds to a nominal diameter of DN125.  In actual production, for DN125A pump pipes, the outer diameter of the welded flange mouth is usually 157 mm, and for DN125B pump pipes, it is 148 mm.

Connection Mode：It is mainly connected to the concrete pump pipe through welding.  This connection method offers high strength and good sealing performance, being capable of withstanding high pressure and 冲击力 during the concrete pumping process.

Structural Features

Collar Design：The flange is equipped with a collar that serves to enhance the connection strength and stability.  The collar can be welded to the pump pipe, providing a firm connection foundation.

Bolt Hole Arrangement：There are evenly distributed bolt holes on the flange, which are utilized to connect with other flanges or components through bolts.  This enables convenient disassembly and assembly during maintenance and replacement, while also guaranteeing the sealing performance of the connection.


Q: How does your factory control product quality?

A: Independent quality control team in our factory. Third party certificated and factory audit accepted. Third party quality control accepted.

Q: Are you a manufacture or trading company?

A: We are a manufacturing factory who has over 10 year-manufacturer history in Concrete pump parts .

Q: What's the lead time for mass production?

A: 20-25days after Advance payment confirmed, can be negotiable.

Q: How can I get the sample? What's the lead time?

A: Normally will be send in 7days. If need to open new Model, need another 10-15days more.

Q: Is it possible to know how are my products going on without visiting your company?

A: We will offer a detailed production schedule and send weekly reports with digital pictures and videos which show the machining progress.

Q: Do you provide OEM service?

A: OEM is welcome, We got a professional and creative R&D team, From the concept to finished goods, we do all ( design, prototype reviewing, tooling and production ) in the factory.

Q: Where is your factory located? How can I visit it?

A: Our factory is located in Cangzhou City ,Hebei Province is Close to the Beijing City , the capital of China . 2 hours from Beijing City to our factory by car.