Duwan AS75-2CB Ripping Sewage Pump Coupling Installation

Motor Power: 7.5 kW

All-Copper Coil Motor

Bore size: 150mm

Cast Iron

Jiangsu Du'an Environmental ProtectionAS75-2CB SubmersibleAll materials for the pump should be suitable for the corrosive environment of the wastewater medium.

Jiangsu Du'an Environmental ProtectionMain components and materials of the sewage submersible pump:

Pump Housing:Cast IronOr equivalent

Impeller:Cast IronOr equivalent

Spindle:Cast IronOr equivalent

Wear-resistant lining:Cast IronOr equivalent

Axial Seal: Mechanical Seal

Diving Motor Enclosure:Cast IronOr equivalent

Guide Rod (or Cable), Hoist Chain:Stainless Steel304Or equivalent

Please provide the Chinese content that needs to be translated into American English.DynamicCoupler:Cast IronOr equivalent

All fasteners and connectors:Cast Iron

Each pump is equipped with a fixed discharge connection elbow. The pump should be capable of being lowered into the well and positioned using two parallel rods or cable guides, and can be automatically connected to the discharge elbow bracket via an automatic coupler. Additionally, it should allow for easy lifting of the pump above ground during maintenance.

The seal between the pump housing and the discharge elbow support can be conveniently adjusted by moving the pump vertically down. The discharge elbow support and the sliding guide coupling device should be considered as an important part of the pump equipment. The entire weight of the pump equipment should be firmly pressed against the discharge elbow by the contact between the flanges of the automatic coupling device.

Submersible pumps and their accessories, cables, etc., should be capable of immersion in10 The parts should be able to run continuously in the water depth without damage and must have reliable sealing. Assembly marks must be made on the components, and locating pins should be provided where necessary to ensure correct reassembly and positioning on-site.

Label identification

The stainless steel plate must be securely fastened in a prominent location on each pump, featuring embossed numerical markings. Each pump must be equipped with a stainless steel lifting lug, positioned near the pump's center of gravity, and an accompanying stainless steel lifting chain.

The dedicated lifting device for the submersible pump must ensure that maintenance personnel can safely and reliably lift the pump from the ground level (equipped with a special chain conversion ring and fastening parts for the conversion ring).

Submersible pump acceptance:

Duwan Environmental Protection Submersible Pump comes with a comprehensive set of pre-shipment procedures.Quality inspection system in place to ensure that all factors affecting product safety, reliability, operational performance, and long-term operational capabilities have been considered, and necessary tests, inspections, and calibrations are conducted on processing, inspection, and testing equipment.

Submersible sewage pumps should be manufactured, inspected, tested, and accepted in accordance with relevant standards, specifications, and regulations.

Inspect materials used in manufacturing submersible sludge pumps and issue material factory pass certificates, material inspection and test records.

In accordance with the requirements of relevant standards, specifications, and regulations, static and dynamic balancing tests are conducted on the main rotating components of the pump.

All pressure-bearing components of the submersible污水 pump, including the cooling jacket, must undergo a hydrostatic test in the manufacturer's workshop according to the regulations, with the hydrostatic test pressure not being less than the closed lift (zero flow).2 Be twice and not less than0.2MPa。

Under the specified test pressure, no part of the pump shall exhibit deformation or signs of deformation, nor shall any other defects be present. The performance tests for the submersible sewage pump and the motor should be conducted according to the specifications in the relevant standards, and the allowable deviations for each index should comply with the relevant standards.

For the pumps supplied,Duwan Environmental ProtectionProvidedSubmersible sewage pumpThe performance curve should start from the closed point (zero flow) and extend at least to the rated flow point.130%And should include the following details: pump position number, pump model and specifications, test speed, test medium and temperature, flow rate—Head curve, efficiency curve, shaft power curve, design operating point.

Jiangsu Du'an Environmental Protection Submersible Pump, Sludge Pump Technical Description

The configuration and application of drainage and sludge pumps are:

Submersible sewage pumps are installed in the production wastewater recovery pond for the recovery and pressurization of the supernatant.

Submersible sludge pump installed in the production wastewater recovery pond for pumping the bottom sludge and water.

Duwan Environmental Submersible Sewage Pump Supply Range:

Duwan Environmental's submersible pumps are suitable for both on-site manual and remote control, and should include but not be limited to the following scope:

· Fully assembled submersible sewage pump (pump casing, impeller, matching motor, seals, etc.)

· Elevating Equipment (guide rods, brackets, hoist chains, etc.)

· Coupling devices and accessories

·Per sewage pump required10m Underwater cables, connectors, elbows, fasteners, cable junction boxes.

Low-Level Float Switch

· Local Control Box (includes)PLC Signal Interface

·All connecting accessories, bolts, and fasteners

Random spare parts and tools