NEWDOSE Metering Pump Price: What Drives the Difference Within One Series

NEWDOSE metering pump price comes down to four choices: solenoid or mechanical diaphragm pump, the flow and pressure size within the series, the pump head material, and options such as electric stroke control, a variable speed motor or an explosion-proof motor. Change the last few characters of a model code and the quote changes with them. When a buyer compares two quotes and asks why one pump with the same flow costs more, the answer is usually in the head material and options. This article does not quote figures. It explains which factors drive cost across the NEWDOSE range so buyers and engineers can read a quotation properly and send complete data the first time.

NEWDOSE metering pump price starts with the product line

NEWDOSE pumps fall into two families.

Solenoid diaphragm metering pumps: the DFD, DP, DM and DC series. They are simple and suit low flows. DFD is manually controlled, DP takes external pulse control, and the more control functions a model has, the higher it sits in the range.

Mechanical diaphragm metering pumps: NDJ (NDJS and NDJL), NDWS, NDWL, ND1000, ND2000 and the high-pressure HND series. A motor drives a reducer that moves the diaphragm, giving wider flow ranges, continuous duty and higher pressure.

At the same flow, the NEWDOSE metering pump price for a mechanical model is generally higher than for a solenoid one, and high-pressure models such as HND cost more than standard mechanical pumps. The motor, reducer and housing explain the gap.

Flow and pressure size within a series

Take the NDWS series. The selection manual runs from NDWS-8/1.6, which is 8 L/h at 1.6 MPa, up to NDWS-386/0.3, which is 386 L/h at 0.3 MPa. The number before the slash is flow; the number after is pressure.

Each size uses a different motor, diaphragm diameter and head. Larger flow, diaphragm and head usually mean a higher NEWDOSE metering pump price, and higher pressure classes need stronger diaphragms and heads. Size for real maximum flow with sensible margin. Jumping several sizes up "to be safe" costs more and leaves the pump running at a short stroke, where accuracy suffers.

Pump head material and NEWDOSE metering pump price

NEWDOSE solenoid pumps offer PP, PVC, PVDF, SS316 and PTFE heads, each with its own seal and valve combination. Mechanical pumps also come in several materials.

As a rule of thumb, PP and PVC sit at the low end, PVDF and stainless in the middle to upper range, and PTFE at the top, reflecting material cost and machining difficulty. Moving the same pump to a PTFE head raises the quote noticeably.

Choose material for the chemical, not the price. PVC is right for sodium hypochlorite, and PTFE there is money wasted. PVC on concentrated sulfuric acid will fail, and the saving will not cover a replacement head.

Controls and options

The third group of factors behind NEWDOSE metering pump price is control and options:

1. Solenoid pump control. Manual models cost least; models accepting pulse, 4–20 mA or level signals cost more.
2. Electric stroke adjustment on mechanical pumps. The selection manual lists an optional electric stroke actuator with 4–20 mA input that changes stroke length from the control system.
3. Variable speed motor when speed control is needed.
4. Explosion-proof motor, required in hazardous areas in chemical and petrochemical plants, and more expensive than a standard motor.

Accessories add to the total. Back pressure valves, relief valves, dampeners, injection valves, foot valves and calibration columns are generally not included with the pump and are quoted separately.

Beyond NEWDOSE metering pump price: spares and maintenance

Buyers tend to look only at the pump line on a quote. In service, diaphragms, check balls and seats, O-rings and oil seals are replaced on a schedule, and mechanical pumps need regular grease checks. Ask about spare part lead times and cost when you buy, and stock one or two years of wear parts. Downtime waiting for a diaphragm often costs more than the difference between two quotes.

Reading a NEWDOSE price list

When you compare a NEWDOSE price list or quotation, check:

• Whether the model suffix includes the head material code; compare like with like.
• Motor voltage, explosion protection and variable speed.
• Whether electric stroke control or extra control functions are included.
• Accessories, freight, tax and delivery time.

A list price is a starting point. The final NEWDOSE metering pump price depends on the configuration confirmed for your duty, and two lists with different configurations cannot be compared.

Send these details for an accurate NEWDOSE metering pump price

• Chemical, concentration and temperature, plus any solids or tendency to crystallize.
• Maximum and normal flow in L/h.
• Discharge pressure in MPa and injection point details.
• Control: manual, pulse, 4–20 mA, remote start and stop.
• Site: indoor or outdoor, hazardous area or not, supply voltage.
• Accessories and quantities.

Conclusion

NEWDOSE metering pump price depends on the product family, the flow and pressure size, head material, control functions and motor options. Within a series, most of the difference comes from head material and from options such as electric stroke control, variable speed and explosion protection. Line up configurations before comparing figures. For selection help see NEWDOSE mechanical diaphragm pump selection, NEWDOSE pump head materials and metering pump price factors. Products are listed under NEWDOSE and mechanical diaphragm metering pumps. Send flow, pressure and chemical and contact our engineers for a confirmed quote.

FAQ

How much more does a mechanical pump cost than a solenoid pump?

It depends on model and configuration, but at the same flow a mechanical pump generally costs more. Send your duty for a configured quote.

Why does the same model get different quotes at different times?

Materials, configuration, quantity and delivery time all affect the quote. The confirmed configuration decides it.

Is there a discount for several pumps?

Volume orders usually leave room for negotiation; confirm with sales.

Are accessories included?

The NEWDOSE mechanical pump manual states that accessories are not supplied with the pump, so valves and dampeners are selected separately.

Can I get a full NEWDOSE price list?

A reference list is available, but the final NEWDOSE metering pump price is confirmed after the duty is checked, so the configuration matches.