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Clarke DIESEL 6x8x13

Diesel Driven Fire

Identification
ManufacturerClarke
SeriesDiesel Fire Pump
Model / sizeDIESEL 6x8x13
Pump typeDiesel Driven Fire
Spec codePS-FP-026
Duty & power
Min flow500 m³/hr
Max flow1500 m³/hr
Min head100 m
Max head250 m
NPSHr6.2 m
Efficiency at BEP70 %
Drive & electrical
Starting methodStar-Delta or Soft Starter (recommended for >5.5kW)
VFD compatibleYes (10-60 Hz)
Motor IE classIE3 (mandatory EU/MEPS) / IE4 optional
Insulation classClass F (155°C) standard
Materials & sealing
CasingCast Iron
ImpellerBronze
ShaftSS 416
Seal typeMechanical Seal
API seal planPlan 11 (internal recirculation)
Application
ServiceFire Water, NFPA 20
Key featuresDiesel engine driver, UL/FM

← Back to the Pump Selector

Pump specification, curve, seal plan, maintenance & troubleshooting

A complete, shareable page for a single pump. It plots the performance curve (head, efficiency and NPSHr against flow, with the best-efficiency point marked, or dosing flow against stroke), decodes the API 682 / ISO 21049 mechanical seal plan, and lists the full specification — duty and operating range, drive and motor, materials of construction, build and reliability, connections, weight and certifications. Pop-up panels give the type-specific preventive-maintenance schedule (daily to annual tasks with procedures) and a troubleshooting guide (symptoms, probable causes and recommended solutions).

Run a centrifugal pump near its BEP and keep dosing pumps in their recommended stroke band. Data is from the engineering reference database — confirm against the manufacturer's certified curve before procurement.

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