Choose LPG transfer, water pressure or gas evacuation

Harbin Pump Valve Industry Co., Ltd.

Match the task to the pump construction. Clarify YQ differential pressure, water quality, SH inspection access or SZ gas conditions before comparing a complete offer.

Listed base
Harbin, Heilongjiang
Published directions
LPG · water · vacuum
Selection priority
Medium · pressure · construction
Procurement documents
Selected drawing and package scope

Separate LPG transfer, water pressure and gas evacuation before selecting a pump

Harbin Pump Valve Industry Co., Ltd. is listed here under the Chinese company name 哈尔滨泵阀泵业有限公司 in Harbin, Heilongjiang. Its company site carries a December 2009 notice describing a name change from Harbin Water Pump Factory. The site’s 1956 history refers to that earlier factory; it should not be read as proof of the present company’s incorporation date.

The useful distinction in its published range is between YQ sliding-vane LPG transfer, D and MSL multistage water pumps, SH split-case water pumps and SZ water-ring vacuum equipment. These handle different media and perform different jobs. A liquid-transfer flow and a gas-extraction capacity cannot be compared as though they describe the same duty.

For a replacement, begin with the original nameplate, serial number, liquid or gas, installation drawing and operating history. For a new system, establish pressure, temperature and suction conditions before choosing a catalogue family. The official documentation is an older catalogue record: require the current selected drawing and offer to identify what will actually be supplied.

Task comparison from the company’s individual product pages; these are selection routes, not interchangeable ratings.
Procurement taskDocumented directionFirst information to resolve
LPG transfer or cylinder fillingYQ single-acting sliding-vane rotor pumpLiquid composition, tank pressure/levels, differential pressure and hazardous-area requirements
Water pressure or distributionD sectional multistage or MSL vertical multistageWater quality, temperature, required duty and installation space
Water circulation with casing accessSH single-stage double-suction split-casePipe arrangement, seal and bearing construction, maintenance clearance
Gas evacuation or compressionSZ water-ring equipmentGas composition, absolute suction pressure, service water and discharge conditions

Read YQ’s number as differential pressure, then define the complete LPG installation

The YQ product page identifies a single-acting sliding-vane rotor pump for LPG and similar volatile liquids or petroleum products. It states a liquid-temperature range of −40 to +40°C and names cylinder filling and tank-transfer work. This range belongs to the documented YQ description, not to every fluid named elsewhere on the company site.

Its naming example is YQ15-5: 15 denotes 15 m³/h, while 5 denotes an inlet-to-outlet pressure difference of 0.5 MPa. Differential pressure is not the maximum permissible casing pressure. The example is a code explanation, not a current witnessed performance result or a complete pump-selection curve.

Provide the actual LPG composition, liquid temperature, tank operating pressure, minimum liquid level, pipe losses and required filling or transfer rate. Ask for the selected flow-versus-pressure performance, inlet requirements, pressure rating and material/seal schedule. Include the motor, coupling guard, baseplate, electrical classification and package interfaces in the same offer.

The company’s historical YQ notice makes equipment identification particularly relevant to replacement work. Request a consistent nameplate, serial number, manufacturer identity, inspection documents and spare-parts drawing. A familiar model prefix or a reseller photograph alone is insufficient to establish the origin and configuration of a replacement.

Whole official YQ pump and motor package photograph
Official YQ catalogue photograph, retained in full. Confirm the selected motor, guard, seal and baseplate in the current package drawing.

Choose the multistage arrangement around water conditions and usable installation space

The D page describes a single-suction multistage sectional centrifugal pump for clean water or liquids with similar physical and chemical properties. Its published liquid-temperature interval is −20 to +80°C, with mine drainage and municipal or factory water supply among the stated uses. Mine drainage does not, by itself, establish an allowable solids concentration or abrasion resistance.

MSL is described separately as a vertical single-suction multistage pump for clean water or water-like liquids, with a stated maximum liquid temperature of 110°C. The page points to irrigation, industrial and urban water supply, including buildings where floor space matters. The higher MSL temperature statement cannot be transferred to the D range.

Give normal and peak water demand, suction supply, pressure target, temperature and water analysis. For a building supply package, also identify the control strategy, standby arrangement, pressure vessel and interfaces to the building system. Confirm which controls and accessories are included rather than treating a photograph of two pumps as a complete duty/standby contract.

Compare the selected curve, stages, motor duty, pipe loads, maintenance access and available electrical supply. Obtain the current data sheet and general arrangement before using an older catalogue image to design foundations or connection dimensions.

Review the existing DG family listing →

Complete official D sectional multistage pump package photograph
D catalogue package, shown without cropping. Stage count and motor belong to the selected duty.
Whole official MSL vertical multistage pump catalogue photograph
MSL catalogue photograph. Two units pictured do not define the controls, standby sequence or supplied package.

Use SH’s split casing to plan inspection, seals and bearing maintenance

The SH page describes a single-stage double-suction impeller with a horizontally split casing. Suction and discharge connections are horizontal and lie below the shaft centre; the description states that rotating components can be inspected without disconnecting the pipework or motor. Confirm the actual lifting clearance and service route from the selected drawing.

The documented liquid is clean water without solid particles, or a liquid with similar properties, at no more than 80°C. Its listed water-supply, power and irrigation uses do not establish suitability for corrosive chemicals or slurry.

The described construction uses packing with a replaceable shaft sleeve. Rolling bearings are described with grease lubrication and sliding bearings with oil lubrication. Ask the offer to identify which bearing arrangement applies, the sealing-water requirements, permissible leakage and maintenance parts. Do not assume that a mechanical seal is included.

For a retrofit, provide nozzle sizes and positions, baseplate dimensions, shaft elevation and rotation. The page states counterclockwise rotation when viewed from the drive end; verify that view and the ordered configuration before preparing the installation. Compare selected duty and maintenance interfaces rather than assuming every S or SH designation is interchangeable.

Review the existing split-case family listing →

Complete official SH split-case pump package photograph
Official SH catalogue photograph. Agree casing-lift access, packing and bearing configuration from the selected drawing.

Specify SZ by gas conditions and absolute pressure, not a water-pump flow

The SZ page covers a water-ring vacuum pump or compressor for air and other non-corrosive gases that are insoluble in water and contain no solid particles. It gives −20 to +40°C as a suitable gas-temperature interval. Gas temperature and service-water temperature are distinct inputs; the page does not establish one universal liquid-temperature rating for the complete system.

Provide gas composition, inlet temperature, required absolute suction pressure and capacity at that stated condition. Identify discharge pressure, condensable components and any carryover. Ask how service-water supply, separation, cooling or recirculation will be arranged and which of those items are included.

A vacuum duty should be compared using the selected capacity-pressure curve and its stated test conditions. For compression, request the corresponding selected discharge conditions. Confirm the complete system, materials and auxiliary interfaces before using this gas-handling direction for a process involving corrosive or water-soluble constituents.

Whole official SZ water-ring pump and motor photograph
Official SZ equipment photograph, fully retained. Service-water, separator and control equipment require a separate package definition.

Tie the manufacturer, selected configuration and acceptance documents together

The national high-tech-enterprise recognition office’s November 2023 Heilongjiang filing announcement lists 哈尔滨泵阀泵业有限公司 under certificate reference GR202323000341. This is a dated organisational record. It does not establish the current validity of every quality certificate or certify a selected LPG, water or vacuum installation.

The company site includes historical quality-system, award and technology statements. Use the actual document holder, scope and validity dates if a contract requires certification or a technology authorisation. An older mention of ISO 9001 or an imported design does not establish the current certificate or an ongoing partnership.

Ask for an itemised offer identifying the legal manufacturer, exact model, current document revisions, selected performance and package boundary. For a replacement, attach the existing equipment record and state whether the objective is a like-for-like repair, a hydraulic change or a new installation. Agree inspection, spare parts and installation responsibilities with the supplied equipment.

Prepare a structured pump RFQ →

Medium and operating task

  • LPG composition and tank conditions, water analysis, or gas composition and absolute pressure
  • Normal/peak duty, liquid or gas temperature, suction conditions and operating schedule
  • Existing nameplate, serial number, failure history and replacement objective

Selected equipment and interfaces

  • Current curve, pressure rating, construction, material and seal schedule
  • Motor/electrical requirements, guard, baseplate, nozzle positions and maintenance clearance
  • Required water-supply controls or vacuum service-water/separator package

Supply and acceptance

  • Actual manufacturer, exact model, drawings and document revisions
  • Applicable conformity documents with holder, scope and dates
  • Inspection/report scope, spare parts and installation/commissioning responsibilities
Send a project requirement

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