IMPA: 652631

Engine Peak Indicators – Precision Cylinder Pressure Gauges for Marine Engines

Engine peak indicators are essential measuring tools for marine engineers, designed to capture the maximum combustion pressure inside diesel engine cylinders. By providing accurate peak pressure readings, these indicators help shipboard personnel monitor engine performance, optimize fuel injection timing, and detect potential problems such as worn piston rings or faulty injectors. Regular peak pressure checks are a standard part of preventive maintenance for main propulsion and auxiliary engines aboard commercial vessels.

Built to withstand the harsh conditions of a ship's engine room, our engine peak indicators feature a heavy-duty stainless steel case and corrosion-resistant internals. The clear, easy-to-read dial allows quick interpretation of pressure values, while the built-in pressure release valve ensures safe venting after each measurement. Each unit comes with standard indicator valve adapters, making it compatible with most marine diesel engines.

Whether you are conducting routine performance checks or troubleshooting engine irregularities, this cylinder pressure gauge provides reliable data for informed decisions. As an IMPA-coded measuring tool, it is a valuable addition to any ship's engine department inventory, supporting efficient operations and reducing downtime.

Key Features

Technical Specifications

SpecificationValue
Product NameEngine Peak Indicator
IMPA Code652631
TypeCylinder Pressure Gauge
Measuring Range0 – 100 bar / 0 – 1450 psi
Accuracy±2% of full scale
Connection ThreadM10 x 1, 1/2" BSP
Gauge Diameter63 mm / 2.5 inches
MaterialStainless steel case, brass internals
Operating Temperature-20°C to +80°C / -4°F to +176°F
Pressure ReleaseManual release valve
Weight0.85 kg / 1.87 lbs
StandardsManufactured under ISO 9001 quality control

Frequently Asked Questions

What is an engine peak indicator?

An engine peak indicator is a precision measuring tool used to determine the maximum combustion pressure in a diesel engine cylinder. It helps marine engineers assess engine performance and identify potential issues.

How do I use an engine peak indicator?

Attach the indicator to the engine's indicator valve, ensure a secure connection, run the engine at the desired load, and read the peak pressure on the gauge. After recording the value, open the release valve to vent the pressure before removing the indicator.

What measuring range is suitable for marine engines?

Most marine diesel engines operate with peak cylinder pressures between 50 and 100 bar (725–1450 psi). This engine peak indicator covers 0–100 bar, making it suitable for a wide range of main and auxiliary engines.

Are adapters included for different engine types?

Yes, the indicator comes with standard adapters, typically M10x1 and 1/2" BSP, which fit most marine diesel engine indicator valves. Additional adapters can be sourced separately if required.

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