Metering pumps

Variable-Speed Peristaltic Pump BT300S

In stock Free shipping over $150

Precision variable-speed peristaltic pump: 0.006–1600 mL/min flow range, time-dispense mode, anti-drip, and RS485 MODBUS connectivity.

From $675.00 USD
Free standard shipping on U.S. orders over $150
  • Card details are entered on Stripe's hosted checkout — they never touch our server.
  • In-stock orders ship within 1–2 business days; typical transit 3–7 business days.
  • All sales are final — see our returns & refunds policy before ordering.
  • Sizing help and post-sale support from support@dragonlab.us.

Control & operation

  • LCD display shows rotation speed and active working mode, driven by a sealed membrane keypad.
  • Reversible direction, start/stop and continuously adjustable speed from the front panel.
  • Time-dispense mode: set dose duration, lag time between doses and total cycle count.
  • Anti-drip function retracts the tubing at cut-off for clean dispensing.
  • 0.5% speed accuracy with 0.1 rpm resolution below 100 rpm.

Integration & build

  • Optically isolated external logic and analog control signals.
  • RS485 MODBUS interface for PC, HMI or PLC integration.
  • Dust-proof and moisture-proof double-layer internal isolation with conformal-coated boards.
  • Stainless steel enclosure resistant to acids, alkalis and organic solvents.
  • Up to four independent channels depending on the head fitted.

Technical specifications

Flow range0.006 – 1,600 mL/min (pump-head dependent)
Speed range0.1 – 350 rpm
Speed resolution0.1 rpm (0.1–100 rpm); 1 rpm (100–350 rpm)
Speed accuracy±0.5%
Maximum channels4 (pump-head dependent)
Power supplyAC 110 V / 220 V ±10%, 50/60 Hz
Power consumption< 50 W
Logic control signal5 V, 12 V standard; 24 V optional
Analog control signal0–5 V standard; 0–10 V or 4–20 mA optional
CommunicationRS485 MODBUS
Operating range0–40 °C, < 80% relative humidity
Ingress protectionIP31
Dimensions226 × 150 × 238 mm (8.90 × 5.91 × 9.37 in)
Weight4.9 kg (10.8 lb)

Available pump heads

The drive unit is identical across every option below — the head determines your flow range, tubing size and channel count. Unsure which to pick? Send us your target flow rate and tubing ID and we'll confirm the right one.

ConfigurationPrice
Without pump head $675.00 USD
YZ15 (1 channel) $920.00 USD
YZ25 (1 channel) $920.00 USD
YT15 (1 channel) $950.00 USD
YT25 (1 channel) $950.00 USD
2xYZ15 (2 channels) $1,165.00 USD
2xYZ25 (2 channels) $1,165.00 USD
2xYT15 (2 channels) $1,225.00 USD
DT15-24 (2 channels) $1,050.00 USD
DT15-44 (4 channels) $1,200.00 USD

What you receive

  • BT300S drive unit with the pump head you selected, factory fitted.
  • Mains power cable for USA outlets.
  • Operating manual, control-signal wiring reference and MODBUS register map.
  • 12-month warranty against manufacturing defect — see Terms & Conditions.

Tubing is not included. Tubing is a consumable and is selected to match your fluid and required flow rate. Our micro-flow silicone tubing covers DG and DT heads; tell us your application and we'll confirm the right bore.

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Need a quote or a PO?

We can issue formal quotations, accept purchase orders from institutions, and supply a W-9 on request. Just tell us what your purchasing team needs.