Xiangyang Hongyuan Special Pump Co., Ltd.

Xiangyang Hongyuan Special Pump Co., Ltd. is identified on its company pages as 襄阳市弘源特种泵业有限公司. The published business description concentrates on mechanical seals, rubber seals, PTFE products and precision parts for corrosion-resistant pumps. The website also uses the Wuerwu Seals name and a 525 seal mark. Keep the legal supplier named in the order distinct from the maker of the pump being repaired.

Its catalogue organises seals around equipment families: LC desulfurisation circulation pumps, LCP process pumps, LCF wear/corrosion service, LH and ZD/G slurry pumps, and absorber agitators. Those headings help identify the installed equipment; they do not establish that Hongyuan supplies every complete pump, or that a replacement seal is interchangeable across all sizes of a family.

For a maintenance purchase, begin with the full pump or agitator nameplate, existing seal code and an assembly drawing. Add photographs of the removed parts and the observed failure. A flow/head requirement alone does not describe the shaft, chamber, flange, working length or service connections that a replacement seal must fit.

The LC seal description is directed at limestone-slurry circulation in wet flue-gas desulfurisation. It describes a single-face cartridge arrangement with a secondary seal, stationary construction, multiple external springs and an internally mounted flange. Its stated material options include 316L or 2205 bodies, SSiC or SiC seal rings and fluororubber. These are alternatives to specify, not a declaration that every assembly has the same materials.

The LC page lists HR3C, HR3, HTM and HRM codes, alongside LC pump references such as LC300/530 and LC550/700. Preserve the complete suffix and material pairing on an existing seal. Matching only an apparent shaft-size number can miss the flange arrangement, seal-face pair, elastomer or service connection.

Provide slurry composition, chloride level, solids distribution and temperature, together with the actual speed and seal-chamber pressure. Ask for the selected material schedule and installation drawing against those conditions. The catalogue’s associated pump-flow and head ranges describe the equipment context; they are not a hydraulic curve for a seal or proof that a proposed assembly fits your pump.

The three descriptions below give different operating envelopes. They are useful for screening the enquiry, while a selected seal still needs a defined material combination, dimensions and simultaneous pressure/temperature/speed conditions. Do not combine the highest values from different rows into a new specification.

Pressure at the seal chamber must be supplied explicitly. A pump discharge pressure or head is not automatically the pressure experienced by the seal. Provide normal operation, start/stop conditions and any relevant transients so the proposal addresses the actual installation.

The LCP description discusses bellows, single-face and double-face alternatives, as well as different flushing and cooling arrangements. It lists bodies in 304, 316L, 2205 or 904L, carbide/SSiC/SiC rings and fluororubber or perfluoroelastomer options. Select the exact combination for the chemical composition, temperature and service conditions rather than ordering “chemical-resistant” as a complete material specification.

Published examples carry detailed codes such as LCP7S2 and LCP8D2, with further material and connection suffixes. Send the existing code exactly as recorded, plus the chamber and sleeve drawing. Request an itemised quotation for seal, sleeve or gland where applicable, gaskets, spare faces and the actual support equipment.

The company’s dated API 682 technical article is background reading, not a product conformity certificate. If your project specifies API 682, state the required edition, arrangement, piping plan and acceptance documentation in the purchase specification. A double-face label alone does not identify the buffer/barrier system or its control conditions.

For example, original seal-system guidance describes Plan 53A as a pressurised clean-barrier-fluid reservoir for an arrangement 3 dual seal. That is a system description, not confirmation that a Hongyuan seal includes that package. Agree the fluid compatibility, permitted process dilution, pressure relationship, heat removal, instrumentation and responsibility for the supply system with the selected quotation.

The ZD/G seal description uses a cartridge, single-face arrangement with internal and external flushing. It places springs outside contact with solid particles and describes small springs, with larger springs for some small shaft diameters. Ask for the proposed flushing circuit, connection sizes, required supply conditions and monitoring, along with the replacement drawing.

The accompanying pump discussion distinguishes ZD lower-head and ZG higher-head equipment, and mentions ash/mineral-slurry concentration limits. Those pump statements are not universal seal solids limits. Record concentration basis, particle size, abrasiveness and the existing flushing history for a selected seal. Wear on faces, sleeve or gland should be documented separately from a hydraulic pump fault.

The absorber-agitator page describes a bearing-equipped, single-face cartridge with an external flange and a sleeve clamp. It lists 5860, AEB and JBQ variants in an application discussion referencing VSF agitators. Treat that as a replacement application to be checked against the installed unit, not proof of original-brand authorisation. Provide agitator code, shaft and flange dimensions, bearing interface, rotation/speed and space for removal.

HTM-40S is labelled as an externally mounted mechanical seal and HTM-55 as a double-face seal. Their short product pages do not provide a complete dimensional or operating specification. Request the exact variant drawing before treating either title as a replacement part number.

For an existing assembly, compare shaft/sleeve diameter, installed working length, flange bolt pattern, chamber clearance and every connection against the approved drawing. Retain the existing manufacturer’s reference and drawing revision in the enquiry. If a different construction is proposed, require a documented interface change rather than silently assuming interchangeability.

Agree a bill of materials separating body, rotating/stationary faces, elastomers, sleeve, springs and fasteners. Specify material traceability and the inspection or test report required for the agreed assembly. Confirm what is included in the cartridge, whether support piping or a reservoir is separate, and what spare components should be available for the next overhaul.

Use the platform enquiry with Hongyuan named and attach a defined replacement package. For an urgent repair, include the shutdown date as a requested schedule, without assuming stock or guaranteed delivery. Ask the quotation to identify drawing approval, manufacture, inspection and shipment stages.

After technical review, agree installation instructions, spring or setting procedure, service-system start-up checks and the acceptance documents to accompany shipment. Keep the seal and any auxiliary system on the same equipment reference so maintenance staff can use the right drawing and spare-part list.

Structure the technical enquiry →

Submit through KanBeng’s enquiry form with this factory named in your request.