Onga Blazemaster Twin Impeller

• Twin-stage impeller design - maximum pressure up to 107m head for high-pressure applications with flow up to 420 lpm
• Honda GX engine options - choice of GX160, GX200, or GX270 for reliable power suited to your needs
• Lightweight construction - corrosion-resistant aluminium casing with powder-coated finish for durability
• Superior priming - large pump casing with raised suction port and inbuilt non-return valve for better priming capabilities
• CFD-optimized hydraulics - Computational Fluid Dynamics designed components for higher performance and efficiency
• Professional-grade materials - dual 30% glass-filled nylon impellers, ceramic/carbon mechanical seal, marine-grade construction
• Multiple discharge options - dual 1" outlets plus 1½" or 2" main discharge for flexible connection options
• Continuous duty rated - designed for sustained operation at 3000 RPM in demanding conditions
• Fuel efficient - Honda engines deliver excellent fuel economy from 1.4 to 2.5 litres per hour
• Australian supported - 2-year warranty backed by Onga's reputation for quality

Emergency fire protection requiring maximum head

Elevated tank filling and long-distance water transfer

External home fire protection sprinkler systems

High-head irrigation and spraying applications

Construction sites requiring high-pressure washdown

Mining and industrial high-pressure operations

Properties requiring water delivery over significant elevation changes

Pump Performance

• Models: BM55H (GX160) | BM65H (GX200) | BM90H (GX270)
• Flow Rate: Up to 420 lpm (all models at optimum head)
• Maximum Head: 100m (BM55H/BM65H) | 107m (BM90H)
• Pump Type: Twin-stage centrifugal with dual closed impellers
• Maximum Pressure: 1300 kPa
• Inlet: 1½" BSP male (BM55H) | 2" BSP male (BM65H/BM90H)
• Outlets: 1", 1", 1½" BSP male (BM55H) | 1", 1", 2" BSP male (BM65H/BM90H)

Engine & Construction

• Engine BM55H: Honda GX160 163cc petrol, recoil start
• Engine BM65H: Honda GX200 196cc petrol, recoil start
• Engine BM90H: Honda GX270 270cc petrol, recoil start
• Continuous Duty: 3000 RPM (all models)
• Fuel Tank: 3.1 litres (BM55H/BM65H) | 5.3 litres (BM90H)
• Fuel Type: Unleaded petrol
• Fuel Consumption @ 3600 RPM: 1.4 L/hr (BM55H) | 1.7 L/hr (BM65H) | 2.5 L/hr (BM90H)
• Oil Type: 10W/30 API SG
• Oil Capacity: 0.6 litres (BM55H/BM65H) | 1.1 litres (BM90H)
• Pump Casing: Powder-coated aluminium
• Impellers: Dual 30% glass-filled nylon (twin-stage configuration)
• Seal: Ceramic/carbon mechanical seal with Nitrile bellows

Operating Conditions

• Suitable Fluids: Clean, non-aggressive water without solids or fibres
• Water Temperature: 1°C to 55°C
• Ambient Temperature: Up to 40°C
• Maximum Casing Pressure: 1300 kPa

Physical Specifications

• Weight: 22.2 kg (BM55H) | 23.9 kg (BM65H) | 33.1 kg (BM90H)
• Packed Weight: 28.3 kg (BM55H) | 29 kg (BM65H) | 41 kg (BM90H)
• Carton Size: 530 × 440 × 550mm (BM55H/BM65H) | 640 × 560 × 550mm (BM90H)

Warranty

• Standard: 2 years manufacturer warranty
• Engine: Covered separately by Honda
• Service Parts: Viton seal kit available for specialized applications

Download the owners manual here
Download the spec sheet here