MAC Valves UK Distributor
Replace dosing pumps
with precision
valve control.
MAC Liquid Bullet Valve BV214/BV221. Double-diaphragm, zero tubing, no pulsation. Supplied, installed and supported by AQUAIOT.
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12.4
Pulses/sec
0.02
Drift %
BV214
Valve Core
Dosing Active
The case for change
Why engineers are ditching small dosing pumps
Peristaltic and diaphragm pumps accumulate problems. MAC liquid dosing valves address each one.
01
Pulsation errors costing you compliance
Stroke-based pumps create pulsation at low flows, causing dosing inaccuracy, downstream mixing problems, and dose logs that cannot be defended in an audit.
02
Tubing failures and unplanned downtime
Peristaltic tubing splits under chemical exposure. Every failure means a reactive call-out, replacement parts, and a window where dosing has stopped entirely.
03
High maintenance across multiple failure points
Check valves, diaphragms, tubing, and motors all need regular servicing. Each failure point is a separate maintenance task and a separate cost line.
04
Accuracy drift as components wear
Pump accuracy degrades as internals wear. The further from original design point, the worse the drift — and the harder it is to keep dose logs within spec.
Engineering architecture
Four precision advantages inside every MAC Liquid Bullet Valve
Hover each capability to see the system respond in real time.
0.02
Drift %
12.4
Pulses/sec
OK
Seal integrity
6.2
Bar inlet
Dual diaphragm isolating media · Chemical barrier active
01
Dual D-Flex Diaphragm
Media contacts only the diaphragm faces and valve body. No sliding seals, no o-ring rub, no tubing in the flow path. Chemical isolation by design.
PTFE / FKM / EPDM
Media-separated
No seal wear
02
Balanced Poppet
Upstream pressure variation is equalised at the seat. Dosing volume per pulse stays consistent regardless of supply fluctuations, over the full life of the valve.
Pressure-independent
Zero drift
03
High-Speed Solenoid Actuation
On/off switching, pulse-width modulation, or proportional control. Fast cycling creates near-continuous micro-dosing from a valve-sized footprint.
On/off & PWM
Proportional 4-20mA
04
Manifold Integration
A single block serves multiple dosing channels from one connection point, replacing the wiring, tubing, and floor space of individual pump assemblies.
Multi-channel
Cartridge internals
10 bar
Max working pressure (app. dep.)
80°C
Operating temperature range
3 seals
PTFE, FKM (Viton), and EPDM options
UK Stocked
Standard cores held for rapid dispatch
Smart dosing integration
How AQUAIOT connects MAC valves to your water system
From sensor input to auditable dose log, in four steps.
1
Monitor
AQUAIOT sensors measure flow, conductivity, and water quality in real time. Data streams to the edge controller continuously.
2
Decide
Cloud logic and local edge rules calculate the dosing requirement against set-points, flow conditions, and time windows.
3
Dose
The MAC LBV fires precise solenoid pulses. Pulse width, frequency, and duration are all configurable from the AQUAIOT dashboard.
4
Prove
Every dose event is logged with timestamp, volume, and sensor context. Audit-ready exports for AMP8, Ofwat, and EA compliance.
Integration and control
Built for your existing infrastructure
SCADA and BMS
MODBUS RS485 and API connections. Direct integration with existing control systems without replacing your architecture.
Closed-loop dosing
Flow, conductivity, or quality sensor feedback adjusts dosing in real time. No manual trim, no operator intervention.
Compliance logging
Timestamped dose records. Exportable reports for AMP8, Ofwat performance commitments, and EA permits.
4G and LoRaWAN
Secure cellular telemetry. Encrypted payloads, over-the-air configuration, remote firmware updates.
PWM and proportional
On/off pulse, pulse-width modulation, or 0-10V / 4-20mA proportional control from one valve platform.
Cloud dashboard
Trendlines, alarms, analytics, role-based access, and data export from the AQUAIOT platform.
Use cases
Where MAC liquid dosing valves deliver results
Valve-grade accuracy in a compact footprint, across sectors.
Water and wastewater treatment
Coagulant, disinfectant, and side-stream dosing on treatment skids and booster stations. Integrates directly into SCADA control architectures.
Precise micro-dosing where larger pump-based systems cannot maintain accuracy at partial-load conditions.
Treatment & distributionAgriculture and fertigation
Fertiliser injection into irrigation lines and drip systems. Consistent pulse volume tracks changing flow conditions.
Precision fertigationIndustrial and OEM
CIP dosing, detergent, cooling water treatment, and packaged plant. Manifold blocks reduce footprint and wiring.
OEM integrationSmart rainwater and SuDS
Additive dosing into smart water butts and attenuation tanks. IoT-triggered dosing on rainfall events.
Climate resilienceTechnical overview
BV214 and BV221: full technical reference
| Parameter | BV214 | BV221 |
|---|---|---|
| Body size | 14mm | 21mm |
| Flow range | Micro to low L/min | Low to mid L/min |
| Max pressure | ~8 bar (app. dep.) | ~10 bar (app. dep.) |
| Actuation | Solenoid: on/off, PWM | Solenoid: on/off, PWM |
| Elastomers | PTFE, FKM, EPDM | PTFE, FKM, EPDM |
| Temp. range | 0 to 80°C | 0 to 80°C |
| Manifold | Single / multi-channel | Single / multi-channel |
| Connection | G-thread / custom | G-thread / custom |
| Media | Water, fertilisers, detergents, reagents, gases | |
| Control signal | On/off, PWM, proportional (0-10V / 4-20mA) | |
| ATEX variants | Available — contact us with zone classification | |
Exact specifications depend on body, orifice, and elastomer selection. Contact us for application-specific sizing and ATEX requirements.
Why choose AQUAIOT
Factory-authorised. Engineering-supplied. UK-stocked.
Authorised MAC Valves UK and Ireland distributor
As part of PSI Technologies, AQUAIOT holds factory-backed authorisation. We specify, stock, and support MAC dosing valves across the UK and Ireland.
Our engineers configure every build
Bespoke valve selection for unusual media, pressure, or manifold requirements. P&ID review included.
UK stock and rapid supply
Standard configurations held in UK inventory for rapid dispatch. No lengthy lead times on core SKUs.
End-to-end delivery
Hardware specification, IoT integration, cloud dashboard, commissioning, and ongoing support all from one team.
Open and interoperable
SCADA, BMS, CAFM, and AQUAIOT ecosystem integration via MODBUS, RS485, and API. No lock-in.
PSI Technologies Group
AQUAIOT operates as part of PSI Technologies, making us the exclusive MAC Valves partner for liquid dosing applications in the UK and Ireland. Every solution combines factory-authorised valve hardware with AQUAIOT IoT integration, cloud dashboards, and our own engineering team on every project.
- Factory-authorised MAC Valves supply and specification
- AQUAIOT IoT integration included as standard
- UK-held stock for standard configurations
- Engineering team covers design, install, and commissioning
- Cloud monitoring, audit logging, and SCADA integration
- Post-installation support and remote diagnostics
Dosing valve enquiry
Tell us about your site.
Share your site and monitoring needs. A UK engineer will follow up to scope the right approach.
Your details go straight to our UK team at info@aquaiot.co.uk.
- Response
- One working day
- Engineering
- Survey, install, dashboards, training
- Phone
- 023 9223 3611
Common questions
Questions about MAC liquid dosing valves
In many applications, yes. The MAC LBV suits micro-litre to low-L/min dosing within its pressure envelope. Our engineers will assess your P&ID and flow data to confirm feasibility before any commitment.
BV214 and BV221 cores cover micro-litre to low-L/min dosing at up to approximately 8 to 10 bar, depending on orifice, body, and elastomer selection.
The balanced poppet equalises upstream pressure variation. Dosing volume per pulse stays consistent regardless of supply pressure fluctuations, unlike pumps that drift with wear.
Water, fertilisers, detergents, chemical reagents, and gases. Seal options include PTFE, FKM (Viton), and EPDM, selected for your specific media at the design stage.
No tubing to replace, no check valves to service, no motor wear. Cartridge-replaceable internals mean field service without removing the valve from the manifold.
Yes. MODBUS RS485 and API connections for SCADA, BMS, CAFM, and the AQUAIOT cloud platform. Closed-loop control via flow, conductivity, or water quality sensor feedback.
MAC Valves manufactures ATEX and hazardous-area variants. Contact us for your specific zone classification requirements.
As part of PSI Technologies, AQUAIOT holds authorised MAC Valves UK and Ireland distributor status. UK stock for standard configurations, our own engineers for specification and installation, and complete IoT integration through the AQUAIOT platform.
Get started
Discuss your MAC dosing requirements
Tell us your application, flow rate, and media. Our engineers will size it, specify it, and support it.
Prefer to call? 02392 233611 · Full contact page
MAC Liquid Dosing Valves. UK-stocked. Installed and supported by AQUAIOT engineers.
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