Mining

Complete specifications: 14""-40""(DN350-DN1000), Pressure-bearing performance: can withstand 300-768PSI (2.1MPa-5.3MPa) rated pressure Main body material: ductile iron On-site installation is convenient and fast, more than 2 times the efficiency of the flange, more than 3 times the weld; No open-flame construction, a wrench can be installed quickly, safe and Environmental protection; Can withstand ground settlement and vibration; Easy system expansion; Simple follow-up maintenance.

Quick-install high-pressure grooved connection: Suitable for high-pressure working conditions, capable of withstanding a rated pressure of 1000Psi (7MPa), the installation efficiency is more than double that of standard grooved couplings, saving labor, shortening construction period. It adopts an integrated assembly design, without the need to disassemble the coupling and gasket, no loose bolts and nuts, the fasteners are less likely to be lost, achieving a perfect combination of safety, high performance and efficiency. Heavy-duty high-pressure quick-install couplings (size range: DN50-DN300/5.5-6.9MPa (800-1000psi)) are suitable for various slurry and water transportation systems in mining field. The design with no disassembly enables the installation efficiency to be twice that of ordinary couplings, and combined with the dedicated self-lubricating high-performance gasket, the sealing pressure is 50% higher than that of ordinary rubber, making the seal more reliable.

Ultra-high pressure grooved connection: In response to the ultra-high pressure application requirements of mortar pump pipelines and high-pressure water transmission pipelines, MEIDE has specially developed grooved couplings that meet the 2000 psi (14 MPa) high-pressure working conditions. These products cover rigid, roll grooving and cut grooving, welding ring, shoulder, and other series. The average installation time is three times or more faster than welding, and they are suitable for high-pressure pulp transportation, high-pressure water transportation, long-distance fine and tailings transportation, and other scenarios. High-pressure rigid couplings (size range: DN50-DN300/8.6-17.2 MPa (1250-2500 psi)) are suitable for various high-pressure pulp and water transportation systems in mines. They have excellent high-pressure resistance performance three times the rated working pressure and achieve multi-condition adaptability through dedicated nitrile rubber gaskets (suitable for oil and gas fields) and wear-resistant EPDM rubber gaskets (suitable for high-pressure mines and other harsh conditions), ensuring reliable performance.

HDPE Coupling Connection: No need for hot-melt connection equipment. It can be put into use immediately after installation, saving time and labor. It can be buried underground and achieve permanent connection. It can also realize the transition connection between HDPE pipes and steel pipes. It does not require electricity and is not affected by weather, making the installation quick and efficient. The installation status can be visually inspected. There are two options available: direct connection of HDPE+HDPE and transition connection of HDPE+steel pipe.

Mining knife gate valve: 1) Dual valve seat design enables the valve to conduct and shut in both directions; 2) No valve seat chamber, eliminating the accumulation of solid particles and ensuring the reliable closure of the valve plate; 3) No metal parts come into direct contact with the slurry;

MEIDE has a wide range of tools for cutting grooves, rolling grooves, making holes, and cutting pipes on pipelines. These tools are widely applicable and provide customers with a one-stop comprehensive service.

Complementary pipeline tools-Roll Grooving Machine
Pipe Processing Size：DN25-DN1800
Groove Depth：≤20mm
Product advantages and features: Automation, superior performance, greater convenience. Automatic groove rolling. When the groove processing reaches the predetermined depth, the equipment will automatically stop running; all parameters have high precision, and the processed pipe material has no deformation or flared mouth phenomenon; the equipment structure is optimized, the main unit and the support frame are innovatively separated into two independent parts, with a portable design, convenient for various working conditions.

Pipe Tools—Cut Grooving machine Patented structure, an industry-first innovation (Patent No.: CN119870989A)
Pipe Processing Size：DN50-DN900
Groove Depth：2-8mm
Product advantages and features: High efficiency, excellent performance, high precision, intelligent digitalization.
Its efficiency is more than three times that of similar equipment; the processing performance is outstanding, with one-time slot cutting and forming, extremely efficient, and eliminating the need for rework; it is not afraid of elliptical pipes, with a processing depth deviation of 0.2mm; it has unique functions such as excessive tool wear reminder, processing efficiency recording and data sharing, which are unique in the industry.