Blue-White A1 FLEXFLO Peristaltic Metering Pump

A1 is the smallest pump in the Blue-White FLEXFLO peristaltic range: a compact, brushless DC dosing pump that meters 0.011 to 21.2 litres per hour against up to 6.89 bar from a NEMA 4X enclosure. It is built for low-volume chemical feed such as hypochlorite, biocide, antiscalant or pH-correction dosing.

Small peristaltic dosing pump with a 2,000:1 speed range

A peristaltic pump moves fluid by squeezing a flexible tube with rollers, so the chemical touches only the tube and its fittings. The A1 datasheet lists a brushless DC motor of 42 W, a maximum of 65 rpm and a speed adjustment resolution of 2,000:1 (0.05 to 100 percent). The slowest tube option delivers as little as 0.001 gallons per hour.

The pump ships in two control levels. The A1B base model gives a digital speed display and manual speed control. The A1C control model adds a 4-20 mA input and output, remote start/stop, and outputs for tube failure detection (TFD+), flow verification (FVS) and motor status, with IP67 M12 five-pin signal connectors. Both include the TFD+ sensor, which senses a tube rupture and stops the pump so that chemical does not leak into the housing.

Key features as printed in the datasheet

• Flow range 0.011 to 21.2 LPH (0.003 to 5.60 GPH) and up to 100 psi (6.89 bar) depending on the tube.
• Tube Failure Detection (TFD+) with a polysulfone sensor.
• Brushless DC motor, continuous duty, 2-year motor warranty stated on the sheet.
• UV-resistant polycarbonate shield over the controls and display.
• Tubing in Flex-A-Prene, Flex-A-Thane or Flex-A-Chem (FDA 21 CFR 117.2600 criteria per the sheet).
• Certified cETLus and CE; RoHS compliant.

Technical specification

General specification

Output by tube (A1 datasheet)

Selection and ordering guide

The model code follows the pattern A1 [control] [power cord] [tube] – [connection], for example A1B41T. Control B is manual speed only; control C adds the 4-20 mA and relay I/O. The power-cord digit selects 4 for 115 V NEMA 5/15 or 6 for 220 V CEE 7/VII, and X for no cord; the datasheet gives the operating voltage requirement as 96 to 264 VAC. Connection T is a 3/8 in OD x 1/4 in tube compression fitting, M a 1/2 in male NPT, MB a 1/2 in male BSPT in natural PVDF.

Pick the tube from the pressure and temperature you need, not only the flow. Tubes 4 and 6 hold 100 psi, tubes 6 and 7 tolerate 185 F fluid, and tube 3 gives the highest flow at 50 psi. Flow figures follow roughly 30 minutes of tube break-in per the manual.

Installation and operation notes

The manual asks for a secure, solid wall or surface close to the injection point, with the suction and discharge tubing kept as short as possible because a longer discharge line raises back pressure on the tube. A snap-in wall-mount bracket (90002-685) and screws are included. Do not mount it directly over the chemical tank, because fumes can damage the unit.

Mounting below the chemical container gives a flooded suction that reduces output error, but then a shut-off valve or pinch clamp is needed during service. Fit a back-flow prevention check valve on the discharge side and, as recommended, a pressure relief valve. Keep signal and AC power wiring separated, and do not leave M12 connectors exposed.

Applications in Oman and the GCC

At 46 C maximum ambient the A1 is suitable for shaded plant rooms and covered skids in the Gulf, but the datasheet does not claim operation in direct summer sun; shade the unit and the chemical tank. The pump is typically specified for hypochlorite and chlorine-dioxide precursors at small water systems, cooling-tower biocide and inhibitor feed, boiler-water conditioning, RO antiscalant and pH-trim dosing; check your chemical against the Blue-White tube compatibility guide referenced in the manual.

The C model 4-20 mA input lets a PLC pace the pump.

Compatible accessories and related items

The datasheet lists STAR III tanks (KIT-S07, KIT-S15, KIT-S30 for 7, 15 and 30 gallons), the KIT-PSM wall-mount bracket, A-050, A-100 and A-150 silicone oil, the TI40-6V injector, the C-340A foot valve, KIT-M12 cables and region power cords 90010-663 to 90010-666 and 90010-696. These are sold separately.

Frequently asked questions

What flow range does the Blue-White A1 cover?

The datasheet gives 0.011 to 21.2 LPH (0.003 to 5.60 GPH) across the available tubes, with a 2,000:1 turndown.

What is the difference between A1B and A1C?

A1B has manual speed control only. A1C adds 4-20 mA input and output, remote start/stop and TFD, FVS and motor outputs.

How high a pressure can the A1 work against?

Up to 100 psi (6.89 bar) with tube 4 or 6; tubes 3, 7 and 8 are limited to 50 psi and tube 1 to 65 psi.

Does the A1 detect a ruptured tube?

Yes. The TFD+ system senses tube failure and stops the pump.

Is Seven Star LLC a Blue-White distributor?

No. Seven Star LLC is an independent supplier in Muscat that sources Blue-White products on request.

Documents and quotation

The official Blue-White technical data sheet for A1 is hosted on this page for download. Seven Star LLC is an independent supplier in Muscat; send your quantity and delivery location through the quotation form and we will quote this item. Please confirm the exact order code, ratings and approvals against the document before ordering. More related products: product category.