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Help CenterWear-resistant DN125 Concrete Pump Pipe With Flange Coupling for High-pressure Concrete Delivery
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Henan Jinhuaiyu Machinery & Equipment Co., Ltd. presents the Wear-resistant DN125 Concrete Pump Pipe with Flange Coupling, a delivery line component for high-pressure concrete pumping. The pipe is built as a seamless double-layer tube, with a hardened bore carrying the abrasion of the mix and an outer wall holding the internal pressure, and the ends are flanged so the line is bolted together and the joint stays sealed under delivery pressure. Straights and bends share the same end pattern, so a worn section is replaced on its own instead of the whole run being retired. It is used on bridge and viaduct pumping lines, high-rise building delivery, precast beam yard supply lines and long horizontal or vertical runs. Pipes are supplied in batches from our Henan workshop with inspection records and bilingual export documents.
Key Features
Seamless double-layer construction — A hardened inner layer takes the abrasion from the concrete while the outer layer carries the internal pressure, which is why the pipe lasts through a long conveying programme rather than a few pours.
Wear-resistant inner bore — The bore is specified for abrasive mixes, so wall loss is gradual and the pipe can be inspected and rotated on a planned schedule.
Flange coupling — Flanged ends are bolted together, which keeps the joint sealed under pressure and lets a section be removed and refitted without disturbing the rest of the line.
Interchangeable sections — Straight sections and bends share the same DN125 end pattern, so a worn part is replaced individually instead of the whole run.
High-pressure delivery — The wall thickness and end preparation suit high delivery pressure, which is what makes a long horizontal or vertical run practical.
Multiple lengths — Sections are supplied in the standard lengths that suit line building and bends, so the run can be assembled to the route rather than padded with spacers.
Technical Specifications
Parameter |
Typical Value |
Remark |
Type |
Concrete Pump Pipe, seamless double-layer |
— |
Material |
Wear-resistant alloy steel |
— |
Nominal Diameter |
DN125 ★ |
confirm against actual specification |
Connection |
Flange coupling |
— |
Length |
Standard sections per line requirement ★ |
confirm against actual specification |
Application |
Bridge, high-rise and beam yard concrete delivery |
— |
MOQ |
50 Pieces |
— |
Port of Shipment |
Tianjin / Shanghai / Qingdao / All Ports in Chinese Mainland |
— |
Typical Applications
Concrete pumping lines on bridge and viaduct construction
High-rise building concrete delivery
Precast beam yard and casting bed supply lines
Tunnel and water conservancy concrete works
Long-horizontal and vertical delivery lines
Why Choose Us
A pump line is a wear item, and the two things that decide how long it lasts are the bore material and the joint. The seamless double-layer wall puts a hardened inner layer against the abrasive mix while the outer layer carries the pressure, so wall loss happens gradually and can be managed on an inspection schedule. Flanged ends are bolted rather than clamped, which keeps the joint sealed under high delivery pressure and allows a single section to be swapped out when it wears, instead of the whole run being retired. Because the sections share one end pattern, bends and straights can be replaced individually.
Company Profile
Henan Jinhuaiyu Machinery & Equipment Co., Ltd. is a manufacturer of prestressing and concrete construction equipment for bridge engineering, established in 2025 and based in Henan, China, with a 1,000-3,000 square meter workshop and 51-100 employees, including 5-10 quality inspectors and 11-20 sales staff. The company supplies concrete pump pipes, trailer concrete pumps, placing booms, screeds and prestressing equipment, and has worked with China Railway project contractors including China Railway Beijing Engineering Group, China Railway 14th Bureau Group and China Railway No.2 Group. Quality control covers raw material checking, in-process inspection and finished-product testing, with key components and welding closely monitored and every batch tested before delivery. Customized manufacturing and OEM/ODM are available, operation manuals are supplied in Chinese and English, and small-batch as well as bulk orders are accepted. Inspection records and bilingual export documents can be provided.
FAQ
1. Why choose a seamless double-layer pipe?
The inner layer is hardened to resist the abrasion of the mix running through it, while the outer layer is there to carry the internal pressure. That division of duty is what lets the pipe stay in service through a long conveying programme rather than wearing through in a few pours.
2. What is the advantage of a flange coupling?
Flanged ends are bolted together, so the joint stays sealed under high delivery pressure, and a section can be removed and refitted without disturbing the rest of the line. Clamped joints can weep or separate under the same conditions.
3. What is the MOQ?
MOQ for this product is 50 pieces, and it is negotiable depending on the length mix and the order quantity. Because a line is built from several sections and bends, orders are normally made up of a combination of lengths.
4. Can bends and straight sections be ordered together?
Yes. Straight sections, bends and the coupling components share the same DN125 end pattern, so a complete line can be supplied in one order and a worn part replaced individually afterwards. Send us the route drawing and we will propose the section list.
5. How do I know when a section needs replacing?
Wall loss in a pump pipe is gradual on a wear-resistant bore, so the practical approach is a planned inspection where the wall thickness of bends and straight runs is checked on a schedule. Inspection records and batch documentation are supplied with the order.
6. Are the pipes tested before delivery?
Quality control covers raw material checking, in-process inspection and finished-product testing, and the batch is inspected before delivery. Inspection records and bilingual export documents can be provided on request.
7. Which sizes other than DN125 are available?
The range covers the common concrete pump line sizes, so DN125 is one of several. Tell us the pump outlet, the delivery pressure and the route and we will confirm the sizes and wall thicknesses for your line.
8. How are the pipes packed for export?
Pipes are packed in bundles for sea freight with the flange faces protected, and bends are packed to suit the same handling. Packing arrangement and container planning are confirmed with the order.
9. Can the pipes be customized and can we inspect them before shipment?
Yes. Wall thickness, length mix and end preparation can be customized, and OEM/ODM is available. We welcome factory inspection before shipment, and a third-party inspector can attend if your project requires it.
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