Bastion A-Rated Circulation Pump with Pre-Wired Cable (130mm, 6m)
Bastion A Rated Underfloor Heating Circulation Pump with Cable
The Bastion A Rated Pump with Cable provides efficient water circulation for wet underfloor heating and compatible central heating circuits. Choose a 6m or 7.5m maximum-head option to suit your system. Selectable AUTO, pressure-control and fixed-speed modes help match pump performance to heating demand. Each option includes a power cable.
Bastion A-Rated Circulation Pump with Pre-Wired Cable (130mm, 6m)
Bastion A Rated Underfloor Heating Circulation Pump with Cable
The Bastion A Rated Pump with Cable provides efficient water circulation for wet underfloor heating and compatible central heating circuits. Choose a 6m or 7.5m maximum-head option to suit your system. Selectable AUTO, pressure-control and fixed-speed modes help match pump performance to heating demand. Each option includes a power cable.
Quick Trade Summary: Bastion A-Rated Circulation Pump with Pre-Wired Cable (130mm, 6m)
The Bastion A-Rated Circulation Pump with Cable (ZL-3002-25/6) combines high-efficiency modulating hydraulics with a factory-fitted 1.0-metre heat-resistant power cable for fast, plug-and-play installation on UK underfloor heating manifolds. Engineered with standard 130mm port spacing and 1½" BSP connections, it replaces seized or failed pumps in under 20 minutes without rewiring mains junction terminals.
Trade Engineering Standards & Hydraulic Application
In hydronic underfloor heating installations, matching the circulation pump's head and volumetric flow rate to circuit pressure drop is essential to prevent cold spots, actuator noise, and premature component wear. The Bastion A-Rated Circulation Pump with Pre-Wired Cable (130mm, 6m) is precision-engineered to British Standard BS EN 1264 and CIBSE hydronic sizing standards, guaranteeing balanced loop flow across modern UK domestic and commercial heating systems.
Engineering Specifications & Technical Standards
| Parameter | Specification Standard |
|---|---|
| Model / SKU | Bastion ZL-3002-25/6 (With Pre-Wired Cable) |
| Cable Specification | 1.0m 3-Core H05VV-F Heat-Resistant Flexible Mains Lead |
| Port-to-Port Length | 130mm (Standard UK Manifold Distance) |
| Maximum Delivery Head | 6.0 Metres (58.8 kPa) |
| Maximum Flow Capacity | 3.2 m³/h |
| Union Thread Size | 1½" BSP Male (G 1½) |
| Motor Efficiency | ErP A-Rated Synchronous ECM Motor |
| Energy Efficiency Index | EEI ≤ 0.20 |
| Electrical Supply | 230V AC, 50 Hz, Single Phase |
| Operating Temperature | +2°C to +95°C |
| Maximum Pressure | 10 Bar (PN10 Static Test Rating) |
| Ingress Protection | IP44 Moisture Resistant |
| Certifications | BS EN 1264, CE, UKCA, ErP Compliant |
Step-by-Step Installation & Commissioning Protocol
- Hydraulic Isolation & Depressurisation: Close manifold isolation ball valves and isolate primary boiler feeds before loosening union nuts. Have a trade catchment tray ready for residual water.
- Gasket Seating & Mechanical Fit: Inspect flat union mating faces. Insert fresh 1½" EPDM sealing washers. Position pump body strictly with the motor shaft horizontal (never pointing vertically up or down) to ensure water-lubricated bearing longevity.
- Torque Alignment: Tighten 1½" BSP union nuts by hand, then secure with adjustable pump spanners to recommended torque (approximately 45–55 Nm). Do not overtighten or pinch the rubber gasket.
- Electrical Termination: Wire live, neutral, and earth into the manifold wiring centre or 230V room thermostat switched live output. Verify earth continuity in accordance with BS 7671 (IET Wiring Regulations 18th Edition).
- Venting & Air Purging: Fill the manifold circuits loop by loop until flowmeter sight glasses run crystal clear of trapped microbubbles. Power on pump and allow automatic air-venting routine to complete before locking final operational mode.
- Flow Balancing: Calibrate flowmeters on each manifold port according to CIBSE design calculation sheets (typically 1.5 to 2.5 Litres/min per loop depending on loop length).
Frequently Asked Questions: Bastion A-Rated Circulation Pump with Pre-Wired Cable (130mm, 6m)
What is the benefit of buying this pump with the pre-wired cable attached?
The pre-wired 1. 0-metre heat-resistant cable eliminates the need to dismantle terminal housing or strip mains wiring on-site in cramped manifold boxes, cutting replacement labour down to under 20 minutes.
Can this pump replace a Wilo Para or Grundfos UPM3 pump on an existing manifold?
Yes. It shares the identical 130mm port spacing, 1½" BSP union threads, and 6m dynamic head curve, making it a direct mechanical and hydraulic replacement for Wilo, Grundfos, and Salus pump packs.
How does the variable speed modulating mode work?
The intelligent ECM motor measures hydraulic system resistance. When manifold zone actuators close, the pump automatically reduces motor wattage to maintain constant differential pressure, eliminating velocity noise and pipe vibration.
Does this pump require an external motor protection relay?
No, the internal electronics feature built-in thermal overload protection, impedance protection, and automatic anti-block rotor declutching.
Can this pump be installed with the motor shaft pointing vertically?
No, BS EN 1264 and manufacturer guidelines strictly require the motor shaft to be mounted horizontally. The terminal box can be rotated to 3, 6, 9, or 12 o'clock positions to maintain accessibility.
What warranty and trade certifications apply to this pump?
Fully certified to BS EN 1264, BS EN 16297-1/3, UKCA, and CE standards, backed by MEP Stock's 12-month manufacturer replacement warranty.
Order the Bastion A-Rated Circulation Pump with Pre-Wired Cable (130mm, 6m) with Trade Delivery
Genuine heating and hydronic supplies in stock for immediate dispatch. Backed by full UK manufacturer warranty and dedicated technical support.
Quick Trade Summary: Bastion A-Rated Circulation Pump with Pre-Wired Cable (130mm, 6m)
The Bastion A-Rated Circulation Pump with Cable (ZL-3002-25/6) combines high-efficiency modulating hydraulics with a factory-fitted 1.0-metre heat-resistant power cable for fast, plug-and-play installation on UK underfloor heating manifolds. Engineered with standard 130mm port spacing and 1½" BSP connections, it replaces seized or failed pumps in under 20 minutes without rewiring mains junction terminals.
Trade Engineering Standards & Hydraulic Application
In hydronic underfloor heating installations, matching the circulation pump's head and volumetric flow rate to circuit pressure drop is essential to prevent cold spots, actuator noise, and premature component wear. The Bastion A-Rated Circulation Pump with Pre-Wired Cable (130mm, 6m) is precision-engineered to British Standard BS EN 1264 and CIBSE hydronic sizing standards, guaranteeing balanced loop flow across modern UK domestic and commercial heating systems.
Engineering Specifications & Technical Standards
| Parameter | Specification Standard |
|---|---|
| Model / SKU | Bastion ZL-3002-25/6 (With Pre-Wired Cable) |
| Cable Specification | 1.0m 3-Core H05VV-F Heat-Resistant Flexible Mains Lead |
| Port-to-Port Length | 130mm (Standard UK Manifold Distance) |
| Maximum Delivery Head | 6.0 Metres (58.8 kPa) |
| Maximum Flow Capacity | 3.2 m³/h |
| Union Thread Size | 1½" BSP Male (G 1½) |
| Motor Efficiency | ErP A-Rated Synchronous ECM Motor |
| Energy Efficiency Index | EEI ≤ 0.20 |
| Electrical Supply | 230V AC, 50 Hz, Single Phase |
| Operating Temperature | +2°C to +95°C |
| Maximum Pressure | 10 Bar (PN10 Static Test Rating) |
| Ingress Protection | IP44 Moisture Resistant |
| Certifications | BS EN 1264, CE, UKCA, ErP Compliant |
Step-by-Step Installation & Commissioning Protocol
- Hydraulic Isolation & Depressurisation: Close manifold isolation ball valves and isolate primary boiler feeds before loosening union nuts. Have a trade catchment tray ready for residual water.
- Gasket Seating & Mechanical Fit: Inspect flat union mating faces. Insert fresh 1½" EPDM sealing washers. Position pump body strictly with the motor shaft horizontal (never pointing vertically up or down) to ensure water-lubricated bearing longevity.
- Torque Alignment: Tighten 1½" BSP union nuts by hand, then secure with adjustable pump spanners to recommended torque (approximately 45–55 Nm). Do not overtighten or pinch the rubber gasket.
- Electrical Termination: Wire live, neutral, and earth into the manifold wiring centre or 230V room thermostat switched live output. Verify earth continuity in accordance with BS 7671 (IET Wiring Regulations 18th Edition).
- Venting & Air Purging: Fill the manifold circuits loop by loop until flowmeter sight glasses run crystal clear of trapped microbubbles. Power on pump and allow automatic air-venting routine to complete before locking final operational mode.
- Flow Balancing: Calibrate flowmeters on each manifold port according to CIBSE design calculation sheets (typically 1.5 to 2.5 Litres/min per loop depending on loop length).
Frequently Asked Questions: Bastion A-Rated Circulation Pump with Pre-Wired Cable (130mm, 6m)
What is the benefit of buying this pump with the pre-wired cable attached?
The pre-wired 1. 0-metre heat-resistant cable eliminates the need to dismantle terminal housing or strip mains wiring on-site in cramped manifold boxes, cutting replacement labour down to under 20 minutes.
Can this pump replace a Wilo Para or Grundfos UPM3 pump on an existing manifold?
Yes. It shares the identical 130mm port spacing, 1½" BSP union threads, and 6m dynamic head curve, making it a direct mechanical and hydraulic replacement for Wilo, Grundfos, and Salus pump packs.
How does the variable speed modulating mode work?
The intelligent ECM motor measures hydraulic system resistance. When manifold zone actuators close, the pump automatically reduces motor wattage to maintain constant differential pressure, eliminating velocity noise and pipe vibration.
Does this pump require an external motor protection relay?
No, the internal electronics feature built-in thermal overload protection, impedance protection, and automatic anti-block rotor declutching.
Can this pump be installed with the motor shaft pointing vertically?
No, BS EN 1264 and manufacturer guidelines strictly require the motor shaft to be mounted horizontally. The terminal box can be rotated to 3, 6, 9, or 12 o'clock positions to maintain accessibility.
What warranty and trade certifications apply to this pump?
Fully certified to BS EN 1264, BS EN 16297-1/3, UKCA, and CE standards, backed by MEP Stock's 12-month manufacturer replacement warranty.
Order the Bastion A-Rated Circulation Pump with Pre-Wired Cable (130mm, 6m) with Trade Delivery
Genuine heating and hydronic supplies in stock for immediate dispatch. Backed by full UK manufacturer warranty and dedicated technical support.
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