Xinxiang Pump Factory Co., Ltd.

Xinxiang Pump Factory Co., Ltd. is 新乡泵厂有限责任公司, using the Chinese brand 鲸龙泵业, Jinglong. Its catalogue puts mine-duty MD multistage pumps alongside clean-water D and IS pumps, hot-water IR and DL arrangements, DY oil pumps and liquid-ring vacuum equipment. The useful buying question is which fluid and installation the selected assembly must serve, rather than whether the manufacturer offers centrifugal pumps in general.

The MD description gives a specific mine-water boundary: solids concentration by volume no greater than 1.5%, particle diameter below 0.5 mm and liquid temperature no higher than 80°C. These conditions belong to the published MD description. They are not permission to use the same pump for dense slurry, large debris, corrosive mine water or an arbitrary solids percentage measured by mass.

Send the water analysis, solids concentration basis and particle distribution with the required discharge and total head. Include static lift, pipe length and losses, lowest sump level, inlet arrangement and operating/standby plan. If acidity, dissolved chemicals or wear are driving a failure, ask for a selected material and seal proposal tied to the measured water, instead of choosing a nominally “wear-resistant” pump by name.

The detailed MD page describes a horizontal sectional multistage assembly, with a horizontal inlet, upward discharge, tie rods joining the sections and a rotor containing a shaft, impellers, balance disc and protective sleeves. The balance disc addresses axial force; the description also identifies wear around that arrangement as a development concern when pumping coal-water mixtures.

The homepage separately labels an illustrated case as MD46-50×12P, self-balancing, with a mechanical seal. Keep the P suffix and the offered structure explicit. That illustration does not establish a complete flow/head curve, stage calculation or interchangeable spare parts for the conventional MD assembly. Request the actual sectional drawing, axial-force arrangement, bearing specification and seal details for a self-balancing quotation.

The conventional MD description uses packing and discusses either rolling bearings with grease lubrication or sliding bearings with thin-oil lubrication. Choose the maintenance plan from the supplied configuration. Agree the wear-part schedule for sleeves, balancing components and impellers, the seal-water requirements and access to inspect and dismantle the rotor. A generic promise of long life is less useful than the agreed materials, operating envelope and replaceable parts.

The IS page is for clean water or liquids with similar physical and chemical properties, at no more than 80°C. It describes a back-pull-out arrangement, with rotor removal using the spacer coupling. For a replacement, confirm that the supplied coupling and clearance actually allow that maintenance route, alongside the suction/discharge flanges and foundation.

DL is a vertical sectional multistage clean-water arrangement. Its description gives 9–126 m³/h, 21–217 m head and 3–90 kW as family ranges, and a normal temperature limit of 80°C. It mentions hot-water service below 120°C with additional cooling components. Do not buy a normal clean-water assembly for that hotter duty without identifying the cooling and seal configuration in the order.

IR is described as an IS-derived hot-water pump with water cooling and a mechanical seal. Its published range includes −20 to +150°C, working pressure no greater than 1.6 MPa and inlet pressure no greater than 0.8 MPa. Keep working and inlet pressure separate, and ask for the selected temperature/pressure combination and cooling requirements. None of these family envelopes establishes a single model’s duty point.

The catalogue also lists ISW horizontal inline pumps and temperature/chemical/oil derivatives. Retain the exact derivative code, fluid, temperature and seal schedule. A plain ISW clean-water label is not a specification for an oil or corrosive-fluid assembly.

Existing IS catalogue record →

Existing DL catalogue record →

Existing IR catalogue record →

Existing ISW catalogue record →

The DY page describes a single-suction multistage sectional oil pump for petroleum and petroleum products without solid particles, with viscosity below 120 cSt. The stated medium-temperature range is −20 to +150°C and allowable inlet pressure 0.6 MPa. Provide viscosity at the operating temperature: cSt is kinematic viscosity, so a value in another viscosity unit should not be copied into the enquiry without identifying it.

The source distinguishes configurations within the family. It describes 100DY16 with horizontal suction and vertical discharge, while the other listed arrangements use vertical suction and discharge. DYII155-67 is described with centre support; the remaining listed arrangements use foot support. Bearing and lubrication arrangements also differ, including forced-circulation and oil-ring systems for specified models. Preserve those interfaces when replacing an existing unit.

The listed package scope includes pump, explosion-proof motor, a common or individual base, check valve, gate valve and spares. Ask the quote to confirm each item, the actual motor rating and approval requirements, seal and cooling services, bearing lubrication and valve pressure class. A pump photograph does not define all of those supplied items or establish suitability for every flammable liquid.

Existing DY catalogue record →

The 2BEC page describes a single-stage, single-acting liquid-ring pump for air or other non-corrosive, water-insoluble gases without solid particles, allowing a small amount of entrained liquid. It is a gas-handling enquiry, separate from the water-flow and head selection for an MD or D drainage pump.

Its recommended operating interval is written as −0.04 to −0.09 MPa. Ask for the pressure reference and the selected pumping-speed curve; those negative pressure figures should not be relabelled as positive absolute pressure. Supply gas composition, inlet temperature, required suction pressure, gas load and available seal-water temperature and flow.

The description mentions end-cover inspection openings, service access to discharge valve plates, and packing replacement without removing the pump cover. Agree the supplied seal, inspection access, gas/liquid separation and seal-water arrangement. The catalogue’s mention of an explosion-proof motor or corrosion-resistant materials does not by itself approve the complete system for an explosive or corrosive gas; define the gas and obtain the selected package requirements.

The company introduction lists casting, heat treatment, machining, assembly and tooling, and states that it makes pumps in cast iron, cast steel and stainless steel. The MD page sets out material procurement, physical and chemical checks, casting, heat treatment, machining, static balancing, hydrostatic testing, rotor subassembly, final assembly and factory testing. These are useful inspection stages to put into an equipment order.

Ask which checks apply to the selected parts and what records will accompany the pump. Identify the wetted materials and heat-treatment requirements, rotor balancing record, hydrostatic test conditions and the hydraulic acceptance test. Specify the agreed duty points, speed, measurement and acceptance criteria rather than treating a broad family range as a test certificate.

The D description discusses suction installation height in terms of atmospheric-pressure head, vapour-pressure head, inlet losses and required NPSH. Provide the actual altitude, water temperature, sump level and suction-pipe arrangement for selection. Also agree the reassembly and alignment procedure after overhaul; its sectional structure makes impeller/guide alignment relevant to restoring performance.

The issuer’s certificate lookup was checked on 8 October 2026. It lists certificate 70026S00133R100 for 新乡泵厂有限责任公司 as valid, issued on 15 June 2026 with an expiry date of 14 June 2029. The certification is occupational health and safety management for activities associated with manufacturing single-stage and multistage centrifugal pumps. The company-published certificate identifies GB/T 45001-2020 / ISO 45001:2018.

The issuer identifies the certified organisation’s location in the advanced-manufacturing development zone of Yanjin County, Xinxiang. The company contact page separately gives a Jianshe Road address in Xinxiang. Keep the manufacturing, organisation and shipping addresses explicit in the order and inspection documents, rather than assuming a contact address is the selected production site.

That management-system certification does not approve a particular pump curve, underground coal-mine installation, explosion-proof motor or gas-handling package. For a mine-duty order, request the current model-specific safety-mark documents and the controlled motor/component schedule required for the destination. Match the exact model and holder, and recheck validity before purchase. The manufacturer’s historical statement about 86 certified products is not a substitute for that model-specific check.

For a failed drainage unit, lead with the complete nameplate, water analysis, operating record and failed parts. For a new mine-water duty, lead with the expected inflow, required discharge and total head, then the suction and standby arrangement. For oil or vacuum work, change the fluid and pressure information accordingly rather than sending the same water-pump brief.

Use the platform enquiry to request a selected curve, sectional and installation drawings, component list and agreed test/document package. Separate pump supply, motor, base, valves, controls, installation and commissioning. This makes a conventional MD, a self-balancing offer and a complete mine-duty package comparable on the terms that affect operation and maintenance.

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