1 published equipment referenceLatest source review 2026-10-11
01 / COMPANY
What this manufacturer offers
Zhejiang Pengxiang HVAC Equipment’s Chinese company page positions it as a fan supplier for paper production and other industrial ventilation applications. Its contact page identifies 浙江鹏翔暖通设备有限公司 in the Chengxi Industrial Area of Fenghui, Shangyu, Shaoxing. The reviewed 4-73 page describes a broad centrifugal-fan family rather than one fixed duty point.
The official company photograph shows signage for both 浙江鹏阳风机有限公司 and 浙江鹏翔暖通设备有限公司. That photograph does not establish that the entities are interchangeable for contracts or certificates. The name on the quotation, invoice, inspection report and any qualification documents should match the party supplying the equipment.
Original national-standard records name the HVAC company as a drafting participant in fan balance/vibration and efficiency standards. Its gallery also contains dated management and test-system documents. Those sources are useful when their holder, date and scope are preserved; they do not by themselves establish today’s certificate status or the performance of a particular 4-73 fan.
Published contracting identity
浙江鹏翔暖通设备有限公司Chinese company/contact pages and original national-standard drafting lists; ask for the actual order’s legal entity. Source
Official contact location
Chengxi Industrial Area, Fenghui, Shangyu District, Shaoxing, ZhejiangPublished address, not an independently conducted site audit. Source
Reviewed family
4-73 single-inlet centrifugal ventilation fansFamily ranges and options; no selected-model curve or certified test supplied in the reviewed page. Source
Specific standards contributions
GB/T41973-2022 balance/vibration specificationOriginal issuer record names company as drafting unit; not a model-level conformity result. Source
Fan-only efficiency contribution
GB/T43080.3-2023Original issuer list; fans without drives, not installed-system input efficiency. Source
Swipe the table, or focus it and use arrow keys, to read conditions and sources.
Manufacturer-published information · 4-73
Parameter
Published value
Conditions and evidence
Published configuration
Single inlet; backward-curved centrifugal impeller
Supplier description of the family; exact selected wheel/material remains an order item. Source
Impeller range
280–2000 mm
Series range, not a dimension for every configuration. Source
Airflow envelope
1000–220000 m³/h
No model/speed-specific curve given; extremes do not imply pressure capability at the same point. Source
Pressure envelope
Up to 3000 Pa
Family upper statement; selected-duty static/total basis and curve need confirmation. Source
Published temperature range
−20°C to 80°C
General family statement; hazardous/corrosive or hot-process duty is not automatically covered. Source
03 / PROJECT REVIEW
A useful Pengxiang review connects fan selection with entity and test scope
Keep legal identity visible through procurement
The official campus photograph contains two different Chinese company names, and the gallery likewise includes quality-management images for different holders. This review does not infer their ownership structure or transfer qualification scope between them.
Ask the supplier to identify the contracting entity, manufacturing location and party issuing test documents. Where another company makes a component or performs testing, have that relationship and responsibility stated. A common trade name or campus image is insufficient to resolve those questions.
The original standard records support a defined technical role
The issuer lists 浙江鹏翔暖通设备有限公司 among the drafting units of GB/T41973-2022, covering balance quality and vibration levels of industrial fans, and GB/T43080.3-2023, concerning efficiency classification for fans without drives at maximum operating speed. Their record pages show the standards as current at review. The latter was implemented on 1 April 2024.
Drafting participation supports a particular contribution to those standards. It does not assign a balance grade or efficiency class to every product. For the selected fan, request its declared standard/edition, actual test configuration and measured report. A fan-without-drive efficiency record should not be presented as whole-installation electrical efficiency.
Balance and vibration evidence
Identify the selected assembly, operating speed, measurement/test arrangement and agreed acceptance values rather than relying on the company’s standards role.
Match measured performance and the stated efficiency basis to the actual fan, drive and operating point; distinguish a fan-only classification from system input power.
Gallery documents are dated and belong to named holders
The displayed HVAC-company ISO9001 quality-management image gives an issue date of 28 July 2021 and an expiry date of 27 July 2024. A separate image names 浙江鹏阳风机有限公司. Neither image is presented here as an authenticated current certificate for the buyer’s order. The CNAS logo on a management certificate does not establish that this factory’s laboratory holds CNAS accreditation.
A displayed fan-performance test-system recognition, FZJ2021-14, names the HVAC company and shows validity ending on 14 October 2024; its text refers to a standardised-airway performance-test system. A separate laboratory document concerns a 2022 interlaboratory comparison. Those historical documents are not a new 4-73 test report or proof that recognition has been renewed.
Management-system certificate
Check a current issuer record, named entity, site and covered activity. A displayed old image does not settle present validity.
Match exact model/configuration and intended use. A smoke-exhaust or other product certificate cannot automatically cover general industrial ventilation.
Select from the 4-73 family using one real duty point
The 4-73 detail offers different sizes, drive arrangements and accessories for building/factory ventilation. Its published maxima describe the family’s envelope, not one fan’s simultaneous airflow, pressure and temperature duty. The page’s protection/accessory wording also does not complete a motor, bearing or control schedule.
Provide required airflow and pressure basis, air properties and contamination, operating schedule and installation constraints. Request a selected-size performance curve, power/noise schedule, drive and rotation/outlet drawing. If the process involves a hazardous atmosphere or other special duty, require an explicitly approved configuration and applicable evidence; a standard ventilation selection should not be stretched to that application.
Make the delivery and support scope inspectable
The supplier presents industrial applications and technology-development statements, but the reviewed sources do not establish current annual output, a detailed factory-process audit, fixed warranty duration or overseas repair times. Its linked English site timed out during this review, so no unobserved English catalogue details are added.
For a custom or process fan, define the duty, drawings, motor/drive, materials, protection and requested monitoring/accessories in the contract. Agree performance, balancing/vibration and inspection documents applicable to the actual assembly. Confirm packing, lifting, commissioning responsibility, spares and destination service terms.
Approve the selected assembly
Retain the agreed curve/duty, configuration drawing and material, motor/drive and accessory schedule.
Approve evidence and acceptance
Match certificates to entity/use; agree model-specific test records, inspection and site acceptance.
Approve handover and service
Keep identifying records and instructions, with a written warranty start/coverage, responsible support party and spare-parts plan.
07 / TRANSPARENCY
Sources and review scope
Compiled by HVACDeck Editorial. Page review: 2026-10-11. Publications are attributed below; their statements are not independent measurements by this platform.
Official contact pageChecked 2026-10-11 · HVAC company and Fenghui address checked; missing official email saved in private CRM only.
Original 4-73 fan family pageChecked 2026-10-11 · Full family limits, drive and option wording plus both product photographs read; no selected-duty curve.
Official qualification galleryChecked 2026-10-11 · Two quality-management holders, dated test-system recognition and 2022 laboratory-comparison image inspected; present status not authenticated.
