Product Overview

Woodward 8237-1597 is a bulkhead-mounted overspeed protection device belonging to the ProTech-GII series. Designed specifically for rotating machinery such as steam, gas and hydraulic turbines,
it triggers a safe shutdown in case of overspeed or excessive acceleration by real-time monitoring of rotor speed and acceleration, thus preventing equipment damage and personal injury. It is widely used in
safety protection scenarios of critical industrial equipment.

Core Parameters

Model: 8237-1597 (ProTech-GII Series)

Manufacturer: Woodward

Rated Voltage: 24V DC

Power Consumption: 25W

Input Signal: Speed sensor signal (compatible with active/passive magnetic pickup units (MPU))

Output Signal: Relay contact signal, digital signal output

Response Time: <10ms (millisecond-level fast response)

Measurement Accuracy: ±0.1%

Operating Temperature: -40°C to 85°C

Protection Class: IP65

Mounting Method: Bulkhead Mount

Dimensions: 120mm × 80mm × 35mm

Weight: Approx. 1.5kg

[caption id="attachment_35404" align="alignnone" width="750"] Woodward ProTech-GII Installation and operation manual
https://www.manualslib.com/manual/1213341/Woodward-Protech-Gii.html[/caption]

Communication Interface: RS-485 communication interface supported

Certification Standards: IEC61508 SIL-3 certified, compliant with international standards API 670 and API 612

Core Functions

Real-time monitoring of turbine speed and acceleration for accurate identification of overspeed risks

Support for programmable trip speed and delay time to meet the requirements of different equipment

Triple-module design supporting online maintenance and module replacement without affecting equipment operation

Built-in fault diagnosis and alarm functions, recording 50 trip/alarm events and 20 overspeed events

Optional automatic overspeed test program for regular performance verification and report generation

Sulfur-resistant conformal coating, resistant to H₂S and SO₂ gas corrosion, suitable for harsh environments

Application Fields

Safety protection of rotating machinery including turbines, generator sets, pumps, fans and compressors in fields such as petrochemical industry,
power generation, natural gas extraction, marine industry, steel manufacturing, papermaking industry and water conservancy projects.

Replacement and Compatibility

Replacement for Old Models: 9907-146, 9907-147, 9907-148, 9907-149, 9907-150, 9907-151

Upgrade Model: 8237-2597 (upgradeable via software conversion kit 8929-039)

Configuration Tool: Compatible with Woodward ProTech Service Tool (Model 9927-1810)