Jiangsu Fengchao Pump Industry Co., Ltd.

Provide pressure or head at the point where coolant is needed, with the delivery and losses through filters, pipework and machine passages. A high-pressure family’s headline cannot replace a curve for the actual tool and operating range. Include how demand changes between machines, tools or cycles.

QDYA’s instructions describe adjusting immersion depth with empty chambers, extension pipes or spacer arrangements, with length depending on stage count. QDYB’s installation text says to increase bottom clearance when the tank has special devices or substantial chips. Its H1/H2 values refer to a drawing, so agree the actual dimensions on that drawing instead of treating them as universal liquid-level requirements.

1. Show the tank and levels

   Supply internal depth, mounting opening, flange position, minimum/normal liquid level and any structures below the pump. State how coolant returns to the tank.

2. Identify chips and filtration

   Describe chips, abrasive fines and any settling or filtration compartments. Give the actual liquid at the inlet, rather than only saying “machine coolant”.

3. Agree immersion and clearance

   Request the selected immersion length, bottom clearance, minimum liquid level and complete dimensional drawing. Allow removal space above the tank for the motor and pump assembly.

4. Confirm connections and controls

   Match outlet position/standard, electrical supply, start/stop sequence and any low-level or other protection with the machine builder.

The QDYB2/QDYB4 page describes use in machining centres, grinders, lathes, electrical-discharge machines, chip conveyors and industrial cleaning. It gives a family flow direction of 1–7 m³/h, head of 5–40 m and motor power of 0.37–0.75 kW. These separate limits are not one combined maximum duty.

The examples below come from the performance table. Compare the curve over your machine’s actual range, and confirm the offered electrical frequency and liquid conditions. The parts list includes stainless-steel hydraulic components and a cast-iron discharge section; “stainless pump” should not be taken to mean every wetted part is stainless steel.

QDYA is described as an immersed multistage pump with a standard motor connected to the pump shaft through a coupling in the pump head. The product page identifies non-corrosive coolant, washing liquid, cutting lubricant and compatible industrial-cleaning or filtration applications. It separately identifies QDYN for mildly corrosive liquid; that alternative should not be silently assigned to a QDYA order.

Its working conditions call for thin, clean liquid without solid particles or fibres. The inlet’s filtering geometry is not a measured chip-passage rating or a replacement for the machine’s filtration design. Provide coolant formulation, concentration, temperature, density and viscosity, and identify what reaches the suction area.

The family’s published 1–108 m³/h flow and 6–235 m head limits cover different selections. Ask for a model and stage count that meet one matched duty. The range table offers cast-iron or stainless-steel discharge-section directions: specify the actual outlet material, seals and thread/flange standard, as well as immersion length.

QDYG is presented for CNC deep-hole drilling and through-spindle coolant supply, with an integrated variable-frequency motor. The page states maximum outlet operating pressure up to 3 MPa. That is a family pressure ceiling, not delivery of 3 MPa at every flow, speed or tool condition. Request the selected curve and permitted control range.

Its parts list distinguishes stainless-steel hydraulic parts, a high-strength stainless shaft, alloy/rubber sealing components and a cast-iron discharge section. Specify coolant compatibility for the full wetted-parts schedule. Ask the machine builder and supplier to agree the control signal/interface, demand changes, filter losses and stopping or protective functions of the actual package.

QDL/QDLF is a vertical multistage direction for building water boosting and industrial equipment. The supplier distinguishes QDL for non-corrosive liquid and QDLF for mildly corrosive liquid, with clean, thin, particle- and fibre-free working conditions. Request exact grades and seal materials rather than assuming resistance from the suffix alone.

The catalogue’s 50 Hz range table separates sizes by nominal flow and gives different pressure limits. Its broad 1–240 m³/h and 6–400 m envelope must not be read as a combined duty. Provide actual inlet pressure and temperature along with discharge duty, then obtain the offered unit’s pressure-temperature limit, curve and connections.

The standard electrical direction is stated as 380 V / 50 Hz, with other supplies offered on request. Confirm the actual motor and curve for the destination. The page also calls for motor selection review above 40 °C ambient or 1,000 m elevation; include those site conditions in the enquiry.

The official profile identifies 江苏峰超泵业有限公司 in Zhangjiagang and describes stainless multistage pumps, machine-tool coolant pumps and water-supply equipment. It gives 2000 as the business history’s starting year. That history is not used here as a verified current legal entity’s registration date.

A government-published historical enterprise list independently names the same company in Suzhou. A historical listing and a company profile’s old quality-system statement do not establish today’s certification or the machine-specific approval of an order. If those documents matter to the purchase, request current issuer/entity/site scope and the offered configuration’s applicable documentation.

For a replacement, provide the existing pump’s nameplate and drawings, tank opening and depth, outlet position and electrical connections. Obtain the proposed pump’s drawing, curve and parts schedule before agreeing interchangeability; a similar family designation is not enough.

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

Reviewed on 8 October 2026 from the official company profile and dedicated QDL/QDLF, QDYA, QDYB and QDYG pages, including performance and material tables; a historical government enterprise list was used for a name cross-check. Family images illustrate the range, not exact stage count or the configuration of an offered order.

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